Edgar Filing: Invesco Municipal Income Opportunities Trust

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS

OF REGISTERED MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number 811-05597

Invesco Municipal Income Opportunities Trust

(Exact name of registrant as specified in charter)

1555 Peachtree Street, N.E., Suite 1800 Atlanta, Georgia 30309

(Address of principal executive offices) (Zip code)

Sheri Morris 1555 Peachtree Street, N.E., Suite 1800 Atlanta, Georgia 30309

(Name and address of agent for service)

Registrant’s telephone number, including area code: (713) 626-1919

Date of fiscal year end: 2/28

Date of reporting period: 5/31/18

Item 1. Schedule of Investments.

Invesco Municipal Income Opportunities Trust

Quarterly Schedule of Portfolio Holdings

May 31, 2018

Schedule of Investments

May 31, 2018

(Unaudited)


	Interest Rate		Maturity Date		Principal Amount (000)		Value

Municipal Obligations–129.67%^(a)

Alabama–2.72%

Birmingham (City of) Special Care Facilities Financing Authority (Methodist Home for the Aging); Series 2016, RB		6.00%		06/01/2050	$	1,000	$	1,115,379
Birmingham (City of) Water Works Board; Series 2015 A, Ref. Water RB ^(b)		5.00%		01/01/2042		2,250		2,523,803
Huntsville (City of) Special Care Facilities Financing Authority (Redstone Village); Series 2007, Retirement Facility RB		5.50%		01/01/2043		925		744,939
Jefferson (County of); Series 2013 C, Sr. Lien Sewer Revenue Conv. CAB Wts.(INS-AGM)^(c)(d)		6.60%		10/01/2042		1,300		1,137,695
Series 2013 F, Sub. Lien Sewer Revenue Conv. CAB Wts.^(d)		7.75%		10/01/2046		1,700		1,446,343
Series 2013-F, Sub. Lien Sewer Revenue Conv. CAB Wts.^(d)		7.90%		10/01/2050		1,000		849,020
Lower Alabama Gas District (The); Series 2016 A, Gas Project RB ^(b)		5.00%		09/01/2046		1,500		1,848,870
								9,666,049

American Samoa–0.21%

American Samoa (Territory of) Economic Development Authority; Series 2015 A, Ref. RB		6.63%		09/01/2035		750		740,571

Arizona–3.45%

Arizona (State of) Industrial Development Authority (Kaizen Education Foundation); Series 2016, Education RB ^(e)		5.75%		07/01/2036		1,500		1,586,160
Glendale (City of) Industrial Development Authority (The Beatitudes Campus); Series 2017, Ref. RB		5.00%		11/15/2040		1,500		1,552,500
Phoenix (City of) Industrial Development Authority (Choice Academies); Series 2012, Education RB		5.38%		09/01/2032		1,000		1,044,360
Phoenix (City of) Industrial Development Authority (Great Hearts Academies); Series 2012, Education RB ^(f)(g)		6.40%		07/01/2021		600		678,342
Phoenix (City of) Industrial Development Authority (Legacy Traditional Schools); Series 2014 A, Education Facility RB ^(e)		6.75%		07/01/2044		750		837,105
Phoenix (City of) Industrial Development Authority (Phoenix Collegiate Academy); Series 2012, Education RB		5.63%		07/01/2042		1,000		1,039,910
Pima (County of) Industrial Development Authority (American Leadership Academy); Series 2017, Education Facility RB ^(e)		5.00%		06/15/2052		1,500		1,504,350
Pima (County of) Industrial Development Authority (Coral Academy Science); Series 2008 A, Education Facilities RB		7.25%		12/01/2038		1,000		1,005,520
Pima (County of) Industrial Development Authority (Edkey Charter Schools); Series 2013, Ref. Education Facility RB		6.00%		07/01/2048		1,000		926,570
Tempe (City of) Industrial Development Authority (Mirabella at ASU); Series 2017 A, RB ^(e)		6.13%		10/01/2052		1,000		1,042,800
Town of Florence, Inc. (The) Industrial Development Authority (Legacy Traditional School - Queen Creek and Casa Grande Campuses); Series 2013, Education RB		6.00%		07/01/2043		1,000		1,061,290
								12,278,907

California–16.60%

ABAG Finance Authority for Non-profit Corps. (Episcopal Senior Communities); Series 2012 A, Ref. RB		5.00%		07/01/2047		1,000		1,065,480
Alhambra (City of) (Atherton Baptist Homes); Series 2010 A, RB ^(f)(g)		7.63%		01/01/2020		1,000		1,092,000
Bay Area Toll Authority (San Francisco Bay Area); Series 2017 F-1, Toll Bridge RB ^(b)		5.00%		04/01/2056		2,250		2,566,575
California (State of) Educational Facilities Authority (Stanford University); Series 2010, RB^(b)		5.25%		04/01/2040		500		669,550
Series 2012 U-2, Ref. RB^(b)		5.00%		10/01/2032		3,000		3,815,100
Series 2014 U-6, RB^(b)		5.00%		05/01/2045		3,000		3,995,370
California (State of) Municipal Finance Authority (Caritas Affordable Housing, Inc.); Series 2014 B, Sub. Mobile Home Park RB		5.88%		08/15/2049		1,250		1,363,787
California (State of) Municipal Finance Authority (High Tech High-Media Arts); Series 2008 A, Educational Facility RB ^(e)(f)(g)		5.88%		07/02/2018		695		697,370
California (State of) Municipal Finance Authority (Santa Rosa Academy); Series 2012 A, Charter School Lease RB		6.00%		07/01/2042		1,000		1,069,440
California (State of) Pollution Control Finance Authority; Series 2012, Water Furnishing RB ^(e)(h)		5.00%		07/01/2037		1,000		1,069,420

See accompanying notes which are an integral part of this schedule.

Invesco Municipal Income Opportunities Trust


	Interest Rate		Maturity Date		Principal Amount (000)		Value

California–(continued)

California (State of) Pollution Control Financing Authority (Aemerge Redpack Services LLC); Series 2016, Solid Waste Disposal RB ^(e)(h)		7.00%		12/01/2027	$	970	$	952,259
California (State of) School Finance Authority (New Designs Charter School); Series 2012, Educational Facilities RB		5.50%		06/01/2042		695		718,338
California (State of) Statewide Communities Development Authority (California Baptist University); Series 2011, RB ^(f)(g)		7.25%		11/01/2021		1,000		1,178,640
California (State of) Statewide Communities Development Authority (Creative Child Care & Team); Series 2015, School Facilities RB (Acquired 11/03/2015; Cost $755,000)^(e)		6.75%		06/01/2045		755		776,487
California (State of) Statewide Communities Development Authority (Loma Linda University Medical Center); Series 2016 A, RB ^(e)		5.25%		12/01/2056		2,000		2,169,560
California (State of) Statewide Finance Authority (Pooled Tobacco Securitization); Series 2002, Tobacco Settlement Asset-Backed RB		6.00%		05/01/2043		750		750,232
Series 2006 A, Tobacco Settlement CAB Turbo RB⁽ⁱ⁾		0.00%		06/01/2046		10,000		1,700,700
California County Tobacco Securitization Agency (The) (Sonoma County Securitization Corp.); Series 2005, Ref. Tobacco Settlement Asset-Backed RB		5.13%		06/01/2038		1,000		1,002,530
Daly City (City of) Housing Development Finance Agency (Franciscan Mobile Home Park Acquisition); Series 2007 C, Ref. Third Tier Mobile Home Park RB		6.50%		12/15/2047		925		926,286
Foothill-Eastern Transportation Corridor Agency; Series 2014 C, Ref. Jr. Lien Toll Road RB		6.50%		01/15/2043		1,000		1,173,350
Golden State Tobacco Securitization Corp.; Series 2007, Sr. Tobacco Settlement Asset-Backed RB		5.75%		06/01/2047		2,355		2,366,775
Series 2007 A-1, Sr. Tobacco Settlement Asset-Backed RB		5.00%		06/01/2033		940		944,700
Series 2007 A-1, Sr. Tobacco Settlement Asset-Backed RB		5.13%		06/01/2047		2,500		2,500,075
Series 2007 B, First Sub. Tobacco Settlement Asset-Backed CAB RB⁽ⁱ⁾		0.00%		06/01/2047		10,000		1,707,800
Inland Empire Tobacco Securitization Authority; Series 2007 C-1, Asset-Backed Tobacco Settlement CAB Turbo RB ⁽ⁱ⁾		0.00%		06/01/2036		10,000		3,095,800
Los Angeles (City of) Department of Airports (Los Angeles International Airport); Series 2018 A, Sub. RB ^(b)(h)(j)		5.25%		05/15/2048		3,000		3,531,570
National City (City of) Community Development Commission (National City Redevelopment); Series 2011, Tax Allocation RB ^(f)(g)		7.00%		08/01/2021		1,000		1,160,400
Palm Springs (City of) (Palm Springs International Airport); Series 2006, Ref. Sub. Airport Passenger Facility Charge RB ^(h)		5.55%		07/01/2028		360		358,063
Poway Unified School District (School Facilities Improvement); Series 2011, Unlimited Tax CAB GO Bonds ⁽ⁱ⁾		0.00%		08/01/2039		8,000		3,614,800
Riverside (County of) Redevelopment Agency (Mid-County Redevelopment Project Area); Series 2010 C, Tax Allocation RB ^(f)(g)		6.25%		10/01/2018		1,000		1,015,610
Riverside (County of) Transportation Commission; Series 2013 A, Sr. Lien Toll RB		5.75%		06/01/2048		1,000		1,109,960
San Francisco (City & County of) Redevelopment Financing Authority (Mission Bay South Redevelopment); Series 2011 D, Tax Allocation RB ^(f)(g)		7.00%		02/01/2021		1,400		1,592,402
San Francisco (City & County of) Successor Agency to the Redevelopment Agency Community Facilities District No. 6 (Mission Bay South Public Improvements); Series 2013 C, Special Tax CAB RB ⁽ⁱ⁾		0.00%		08/01/2037		5,000		1,826,800
Silicon Valley Tobacco Securitization Authority (Santa Clara); Series 2007 A, Tobacco Settlement CAB Turbo RB⁽ⁱ⁾		0.00%		06/01/2036		2,000		737,240
Series 2007 A, Tobacco Settlement CAB Turbo RB⁽ⁱ⁾		0.00%		06/01/2041		5,000		1,379,500
Southern California Logistics Airport Authority; Series 2008 A, Tax Allocation CAB RB ⁽ⁱ⁾		0.00%		12/01/2044		18,085		560,997
Southern California Tobacco Securitization Authority (San Diego County Tobacco Asset Securitization Corp.); Series 2006 A-1, Sr. Tobacco Settlement Asset-Backed RB		5.13%		06/01/2046		1,000		1,002,200
Union City (City of) Community Redevelopment Agency (Community Redevelopment); Series 2011, Sub. Lien Tax Allocation RB ^(f)(g)		6.88%		12/01/2021		1,500		1,757,610
								59,014,776

Colorado–7.05%

Banning Lewis Ranch Metropolitan District No. 3; Series 2015 A, Limited Tax GO Bonds		6.13%		12/01/2045		750		732,945
Brighton Crossing Metropolitan District No. 4; Series 2017 A, Limited Tax GO Bonds		5.00%		12/01/2037		525		542,209
Broomfield (City and County of) Midcities Metropolitan District No. 2; Series 2016 B, Ref. Sub. Special Limited Tax GO Bonds		7.75%		12/15/2046		1,945		1,947,490
Canyons Metropolitan District No. 5; Series 2017 A, Ref. Limited Tax GO Bonds		6.13%		12/01/2047		1,000		1,014,670
Colorado (State of) Health Facilities Authority (SCL Health System); Series 2013 A, RB ^(b)		5.50%		01/01/2035		2,750		3,141,408
Colorado (State of) Health Facilities Authority (Sunny Vista Living Center); Series 2015 A, Ref. RB ^(e)		6.25%		12/01/2050		1,000		1,065,100

See accompanying notes which are an integral part of this schedule.

Invesco Municipal Income Opportunities Trust


	Interest Rate		Maturity Date		Principal Amount (000)		Value

Colorado–(continued)

Colorado (State of) Health Facilities Authority (Total Longterm Care National Obligated Group); Series 2010 A, RB ^(f)(g)		6.25%		11/15/2020	$	1,000	$	1,101,000
Colorado (State of) Regional Transportation District (Denver Transit Partners Eagle P3); Series 2010, Private Activity RB		6.00%		01/15/2041		1,000		1,063,720
Fossil Ridge Metropolitan District No. 1; Series 2010, Ref. Tax Supported Limited Tax GO Bonds		7.25%		12/01/2040		500		526,045
Gardens on Havana Metropolitan District No. 3 (The); Series 2017 B, Sub. Special RB		7.75%		12/15/2047		700		718,788
Leyden Rock Metropolitan District No. 10; Series 2016 B, Sub. Limited Tax GO Bonds		7.25%		12/15/2045		500		496,750
North Range Metropolitan District No. 2 Series 2017 A, Ref. Limited Tax GO Bonds		5.75%		12/01/2047		1,000		1,012,120
Solaris Metropolitan District No.3 Series 2016 B, Ref. Sub. Limited Tax GO Bonds		7.00%		12/15/2046		1,000		996,970
Southlands Metropolitan District No. 1; Series 2017 A-1, Ref. Unlimited Tax GO Bonds		5.00%		12/01/2047		2,085		2,231,304
St. Vrain Lakes Metropolitan District No. 2; Series 2017 A, Sr. Limited Tax GO Bonds		5.00%		12/01/2037		1,500		1,502,775
Sterling Ranch Community Authority Board; Series 2017 A, Sr. Supported and Special RB		5.00%		12/01/2038		2,000		2,044,440
Tallyns Reach Metropolitan District No. 3; Series 2016 A, Sub. Limited Tax GO Bonds		6.75%		11/01/2038		1,220		1,226,185
University of Colorado; Series 2013 A, Enterprise RB ^(b)(f)(g)		5.00%		06/01/2023		3,250		3,697,720
								25,061,639

Connecticut–0.41%

Georgetown (City of) Special Taxing District; Series 2006 A, Unlimited Tax GO Bonds (Acquired 11/16/2006; Cost $2,955,000)^(e)(k)		5.13%		10/01/2036		2,955		945,600
Hamden (Town of) (Whitney Center); Series 2009 A, Facility RB		7.75%		01/01/2043		500		523,250
								1,468,850

District of Columbia–1.63%

District of Columbia (Cesar Chavez Charter School); Series 2011, RB		7.88%		11/15/2040		1,000		1,037,440
District of Columbia; Series 2009 B, Ref. Sec. Income Tax RB^(b)		5.00%		12/01/2025		1,335		1,398,399
Series 2014 C, Unlimited Tax GO Bonds^(b)		5.00%		06/01/2038		3,000		3,367,020
								5,802,859

Florida–6.71%

Alachua (County of) Health Facilities Authority (East Ridge Retirement Village, Inc.); Series 2014, RB		6.38%		11/15/2049		900		959,292
Alachua (County of) Health Facilities Authority (Terraces at Bonita Springs); Series 2011 A, RB		8.13%		11/15/2046		1,000		1,118,920
Capital Trust Agency Inc. (Tallahassee Tapestry); Series 2015, First Mortgage RB ^(e)		7.00%		12/01/2045		1,000		1,054,080
Collier (County of) Industrial Development Authority (The Arlington of Naples); Series 2014 A, Continuing Care Community RB ^(e)		8.25%		05/15/2049		1,200		1,336,488
Florida (State of) Mid-Bay Bridge Authority; Series 2011 A, Springing Lien RB ^(f)(g)		7.25%		10/01/2021		1,000		1,162,420
Florida Development Finance Corp. (Brightline Passenger Rail); Series 2017, Surface Transportation Facilitiy RB ^(e)(g)(h)		5.63%		01/01/2028		1,000		1,032,980
Florida Development Finance Corp. (Renaissance Charter School, Inc.); Series 2012 A, Educational Facilities RB^(e)		6.13%		06/15/2043		1,000		1,045,040
Series 2015, Educational Facilities RB^(e)		6.13%		06/15/2046		1,000		1,044,300
Lee (County of) Industrial Development Authority (Cypress Cove Healthpark); Series 2012, Ref. RB		5.75%		10/01/2042		1,000		1,074,970
Lee (County of) Industrial Development Authority (Lee County Community Charter Schools, LLC); Series 2012, IDR		5.75%		06/15/2042		1,200		1,205,100
Miami-Dade (County of); Series 2009, Sub. Special Obligation CAB RB ⁽ⁱ⁾		0.00%		10/01/2042		7,900		2,840,208
Orlando (City of) Greater Orlando Aviation Authority; Series 2017 A, Priority Sub. Airport Facilities RB ^(b)(h)		5.00%		10/01/2047		3,000		3,393,510
Orlando (City of); Series 2014 A, Contract Tourist Development Tax Payments RB ^(b)(f)(g)		5.00%		05/01/2024		3,000		3,466,560
Palm Beach (County of) Health Facilities Authority (Sinai Residences of Boca Raton); Series 2014 A, RB		7.50%		06/01/2049		750		868,117
Seminole (County of) Industrial Development Authority (Legacy Pointe at UCF); Series 2016 A, RB ^(e)		10.00%		12/28/2021		1,000		1,148,250
St. Johns (County of) Industrial Development Authority (Presbyterian Retirement Communities); Series 2010 A, RB ^(f)(g)		6.00%		08/01/2020		1,000		1,085,830
								23,836,065

See accompanying notes which are an integral part of this schedule.

Invesco Municipal Income Opportunities Trust


	Interest Rate		Maturity Date		Principal Amount (000)		Value

Georgia–1.98%

Americus (City of) & Sumter (County of) Hospital Authority (Magnolia Manor Obligated Group); Series 2013 A, Ref. RB		6.38%		05/15/2043	$	1,000	$	1,098,090
Atlanta (City of) (Beltline); Series 2009 B, Tax Allocation RB ^(f)(g)		7.38%		01/01/2019		1,000		1,032,790
Atlanta (City of); Series 2015, Ref. Water & Wastewater RB ^(b)		5.00%		11/01/2040		2,490		2,820,149
DeKalb (County of) Hospital Authority (DeKalb Medical Center, Inc.); Series 2010, RAC		6.13%		09/01/2040		1,000		1,069,000
Rockdale (County of) Development Authority (Pratt Paper (GA), LLC); Series 2018, Ref. RB ^(e)(h)		4.00%		01/01/2038		1,000		1,013,500
								7,033,529

Hawaii–0.57%

Hawaii (State of) Department of Budget & Finance (15 Craigside); Series 2009 A, Special Purpose Senior Living RB ^(f)(g)		8.75%		11/15/2019		905		990,052
Hawaii (State of) Department of Budget & Finance (Hawaiian Electric Co., Inc. & Subsidiary); Series 2009, Special Purpose RB		6.50%		07/01/2039		1,000		1,047,050
								2,037,102

Idaho–0.79%

Idaho (State of) Health Facilities Authority (Terraces of Boise); Series 2014 A, RB		8.13%		10/01/2049		1,000		1,141,380
Idaho (State of) Health Facilities Authority (Valley Vista Care Corp.); Series 2017 A, Ref. RB		5.25%		11/15/2047		1,600		1,657,824
								2,799,204

Illinois–13.15%

Bolingbrook (Village of) Special Services Area No. 1 (Forest City); Series 2005, Special Tax RB		5.90%		03/01/2027		1,750		1,751,487
Bolingbrook (Village of); Series 2005, Sales Tax RB		6.25%		01/01/2024		1,455		1,446,488
Chicago (City of) (Lakeshore East); Series 2003, Special Assessment Improvement RB		6.75%		12/01/2032		1,859		1,868,667
Chicago (City of) Board of Education; Series 2017 H, Dedicated Unlimited Tax GO Bonds		5.00%		12/01/2046		1,500		1,523,790
Chicago (City of) Metropolitan Water Reclamation District; Series 2015 A, Unlimited Tax GO Green Bonds^(b)		5.00%		12/01/2044		3,000		3,303,180
Series 2016 C, Unlimited Tax GO Green Bonds^(b)		5.00%		12/01/2045		2,250		2,499,570
Chicago (City of) Transit Authority; Series 2014, Sales Tax Receipts RB ^(b)		5.25%		12/01/2049		3,000		3,330,090
Chicago (City of); Series 2007 F, Ref. Unlimited Tax GO Bonds		5.50%		01/01/2042		1,250		1,326,987
Series 2009 C, Ref. Unlimited Tax CAB GO Bonds⁽ⁱ⁾		0.00%		01/01/2031		5,020		2,761,402
Series 2011, Tax Increment Allocation Revenue COP		7.13%		05/01/2025		1,030		1,037,437
Series 2017 A, Ref. Unlimited Tax GO Bonds		6.00%		01/01/2038		1,500		1,692,690
Hillside (Village of) (Mannheim Redevelopment); Series 2008, Sr. Lien Tax Increment Allocation RB		7.00%		01/01/2028		1,000		1,020,810
Illinois (State of) Finance Authority (Collegiate Housing Foundation - DeKalb II, LLC - Northern Illinois University); Series 2011, Student Housing RB		6.88%		10/01/2043		1,000		1,090,880
Illinois (State of) Finance Authority (Intrinsic Schools - Belmont School); Series 2015, Charter School RB ^(e)		6.00%		12/01/2045		1,000		1,025,430
Illinois (State of) Finance Authority (Luther Oaks); Series 2006 A, RB		5.70%		08/15/2028		500		500,275
Series 2006 A, RB		6.00%		08/15/2039		1,500		1,500,660
Illinois (State of) Finance Authority (Lutheran Home & Services); Series 2012, Ref. RB		5.75%		05/15/2046		1,000		1,053,960
Illinois (State of) Finance Authority (Park Place of Elmhurst); Series 2016, RB		2.00%		05/15/2055		150		7,506
Series 2016 A, RB		6.24%		05/15/2038		140		135,957
Series 2016 A, RB		6.33%		05/15/2048		500		495,335
Series 2016 A, RB		6.44%		05/15/2055		850		848,767
Illinois (State of) Finance Authority (Peace Village); Series 2013, RB		7.00%		08/15/2043		1,000		1,065,040
Illinois (State of) Finance Authority (Plymouth Place); Series 2013, Ref. RB		6.00%		05/15/2043		1,000		1,090,930
Illinois (State of) Finance Authority (Rogers Park Montessori School); Series 2014, Ref. Sr. Educational Facilities RB		6.13%		02/01/2045		500		526,130
Illinois (State of) Finance Authority (United Neighborhood Organization Charter School Network, Inc.); Series 2011, Ref. Charter School RB		6.88%		10/01/2031		435		462,396
Series 2011, Ref. Charter School RB		7.13%		10/01/2041		500		531,660
Illinois (State of) Finance Authority (University of Chicago); Series 2013 A, RB ^(b)		5.25%		10/01/2052		3,000		3,320,880

See accompanying notes which are an integral part of this schedule.

Invesco Municipal Income Opportunities Trust


	Interest Rate		Maturity Date		Principal Amount (000)		Value

Illinois–(continued)

Illinois (State of) Finance Authority (Villa St. Benedict); Series 2015, Ref. RB		6.38%		11/15/2043	$	775	$	857,290
Illinois (State of) Metropolitan Pier & Exposition Authority (McCormick Place Expansion); Series 2017 B, Ref. Conv. CAB RB^(d)		4.70%		12/15/2037		1,000		553,600
Series 2017 B, Ref. Conv. CAB RB^(d)		4.95%		12/15/2047		1,900		1,019,749
Illinois (State of); Series 2017 D, Unlimited Tax GO Bonds ^(b)(j)		5.00%		11/01/2023		3,000		3,194,010
Long Grove (Village of) (Sunset Grove); Series 2010, Limited Obligation Tax Increment Allocation RB		7.50%		01/01/2030		870		885,121
Pingree Grove (Village of) (Cambridge Lakes Learning Center); Series 2011, RB ^(f)(g)		8.50%		06/01/2021		1,000		1,185,600
United City of Yorkville (City of) Special Service Area No. 2006-113 (Cannonball/Beecher Road); Series 2007, Special Tax RB		5.75%		03/01/2028		795		795,429
Upper Illinois River Valley Development Authority (Pleasant View Luther Home); Series 2010, RB		7.38%		11/15/2045		1,000		1,044,200
								46,753,403

Indiana–1.70%

Allen (County of) Economic Development (StoryPoint Fort Wayne); Series 2017, RB ^(e)		6.88%		01/15/2052		250		269,052
Carmel (City of) (Barrington Carmel); Series 2012 A, RB		7.13%		11/15/2047		515		542,007
Crown Point (City of) (Wittenberg Village); Series 2009 A, Economic Development RB		8.00%		11/15/2039		1,000		1,040,910
Indiana (State of) Finance Authority (Indiana University Health Obligated Group); Series 2015 A, Ref. Hospital RB ^(b)		5.00%		12/01/2040		2,250		2,521,373
Indianapolis (City of) (Ritter Affordable Assisted Living); Series 2014, MFH RB		6.90%		12/01/2033		500		487,035
Valparaiso (City of) (Pratt Paper, LLC); Series 2013, Exempt Facilities RB ^(h)		7.00%		01/01/2044		1,000		1,181,950
								6,042,327

Iowa–3.26%

Cass (County of) (Cass County Memorial Hospital); Series 2010 A, Hospital RB ^(l)		7.25%		06/01/2035		1,000		1,052,510
Iowa (State of) Finance Authority (Alcoa Inc.); Series 2012, Midwestern Disaster Area RB		4.75%		08/01/2042		1,000		1,030,740
Iowa (State of) Finance Authority (Iowa Fertilizer Co.); Series 2013, Midwestern Disaster Area RB		5.25%		12/01/2025		3,000		3,213,780
Iowa (State of) Finance Authority (Madrid Home); Series 2007, Ref. Health Care Facility RB		5.90%		11/15/2037		750		750,000
Iowa (State of) Tobacco Settlement Authority; Series 2005 B, Asset-Backed RB		5.60%		06/01/2034		700		706,804
Series 2005 C, Asset-Backed RB		5.38%		06/01/2038		1,125		1,127,689
Series 2005 C, Asset-Backed RB		5.63%		06/01/2046		1,000		1,004,930
Series 2005 D, Asset-Backed CAB RB⁽ⁱ⁾		0.00%		06/01/2046		8,400		1,496,040
Series 2005 E, Asset-Backed CAB RB⁽ⁱ⁾		0.00%		06/01/2046		10,000		1,203,200
								11,585,693

Kansas–0.93%

Wichita (City of) (Larksfield Place); Series 2013 III, Ref. Health Care Facilities & Improvement RB		7.38%		12/15/2043		1,000		1,079,460
Wichita (City of) (Presbyterian Manors, Inc.); Series 2013 IV-A, Health Care Facilities RB		6.50%		05/15/2048		1,000		1,054,700
Series 2018 I, Ref. Health Care Facilities RB		5.00%		05/15/2038		1,115		1,159,288
								3,293,448

Kentucky–0.85%

Kentucky (State of) Economic Development Finance Authority (Masonic Home Independent Living II); Series 2011, RB ^(f)(g)		7.38%		05/15/2021		1,000		1,150,280
Kentucky (State of) Public Transportation Infrastructure Authority (Downtown Crossing); Series 2013 C, First Tier Toll Conv. CAB RB ^(d)		6.88%		07/01/2046		2,000		1,887,900
								3,038,180

Louisiana–2.03%

East Baton Rouge (Parish of), Louisiana (Exxon Corp.); Series 1993, Ref. VRD PCR ^(m)		0.91%		03/01/2022		900		900,000
Louisiana (State of) Local Government Environmental Facilities & Community Development Authority (Westlake Chemical Corp.); Series 2009 A, RB		6.50%		08/01/2029		750		820,920

See accompanying notes which are an integral part of this schedule.

Invesco Municipal Income Opportunities Trust


	Interest Rate		Maturity Date		Principal Amount (000)		Value

Louisiana–(continued)

Louisiana (State of) Local Government Environmental Facilities & Community Development Authority; Series 2015 A, Ref. RB		6.25%		11/15/2045	$	750	$	835,260
Louisiana (State of) Public Facilities Authority (Lake Charles Memorial Hospital); Series 2007, Ref. Hospital RB ^(e)		6.38%		12/01/2034		1,000		1,047,840
New Orleans (City of) Aviation Board (North Terminal); Series 2017 B, General Airport RB ^(b)(h)		5.00%		01/01/2048		3,250		3,621,085
								7,225,105

Maine–0.31%

Maine (State of) Health & Higher Educational Facilities Authority (Maine General Medical Center); Series 2011, RB		6.75%		07/01/2041		1,000		1,086,030

Maryland–1.50%

Baltimore (City of) (East Baltimore Research Park); Series 2008 A, Special Obligation Tax Allocation RB ^(f)(g)		7.00%		09/01/2018		1,000		1,012,950
Baltimore (City of); Series 2017, Ref. Convention Center Hotel RB		5.00%		09/01/2042		2,000		2,201,840
Frederick (County of) (Jefferson Technology Park); Series 2013 B, Tax Increment & Special Tax RB ^(e)		7.13%		07/01/2043		1,000		1,081,610
Harford (County of); Series 2011, Special Obligation Tax Allocation RB		7.50%		07/01/2040		1,000		1,043,700
								5,340,100

Massachusetts–1.80%

Massachusetts (State of) Development Finance Agency (Massachusetts Institute of Technology); Series 2002 K, RB ^(b)		5.50%		07/01/2032		505		671,049
Massachusetts (State of) Development Finance Agency (Newbridge Charles, Inc.); Series 2017, Ref. RB ^(e)		5.00%		10/01/2057		1,500		1,586,970
Massachusetts (State of) Development Finance Agency (Tufts Medical Center); Series 2011 I, RB^(f)(g)		6.88%		01/01/2021		600		670,794
Series 2011 I, RB		6.88%		01/01/2041		400		447,944
Massachusetts (Commonwealth of); Series 2004 A, Ref. Limited Tax GO Bonds (INS-AMBAC)^(b)(c)		5.50%		08/01/2030		960		1,227,600
University of Massachusetts Building Authority; Sr. Series 2017 1, RB ^(b)		5.25%		11/01/2047		1,500		1,788,390
								6,392,747

Michigan–1.84%

Charyl Stockwell Academy; Series 2015, Ref. Public School Academy RB		5.75%		10/01/2045		635		636,943
Dearborn Economic Development Corp. (Henry Ford Village, Inc.); Series 2008, Ref. Limited Obligation RB		7.00%		11/15/2028		1,200		1,193,796
Detroit (City of) Water and Sewerage Department; Series 2012 A, Ref. Sr. Lien Sewage Disposal System RB		5.25%		07/01/2039		1,000		1,075,340
Grand Rapids Economic Development Corp. (Beacon Hill at Eastgate); Series 2017 A, Ref. RB		5.00%		11/01/2037		600		635,052
Michigan (State of) Tobacco Settlement Finance Authority; Series 2007 A, Sr. Asset-Backed RB		6.00%		06/01/2048		2,280		2,291,788
Wayne Charter County Economic Development Corp. (Rivers of Grosse Point); Series 2013, First Mortgage RB		7.88%		12/01/2043		1,000		703,340
								6,536,259

Minnesota–3.28%

Anoka (City of) (The Homestead at Anoka, Inc.); Series 2011 A, Health Care Facilities RB ^(f)(g)		7.00%		11/01/2019		1,000		1,078,350
Bloomington (City of) Port Authority (Radisson Blu Mall of America, LLC); Series 2010, Recovery Zone Facility RB		9.00%		12/01/2035		1,000		1,120,730
Minneapolis (City of) (Fairview Health Services); Series 2008 A, Health Care System RB ^(f)(g)		6.75%		11/15/2018		1,500		1,534,260
Rochester (City of) (Homestead at Rochester, Inc.); Series 2013 A, Health Care & Housing RB		6.88%		12/01/2048		1,000		1,142,080
Rochester (City of) (Samaritan Bethany, Inc.); Series 2009 A, Ref. Health Care & Housing RB ^(f)(g)		7.38%		12/01/2019		1,000		1,079,370
St. Paul (City of) Housing & Redevelopment Authority (Emerald Gardens); Series 2010, Ref. Tax Increment Allocation RB		6.25%		03/01/2025		1,000		1,026,370
Wayzata (City of) (Folkestone Senior Living Community); Series 2012 A, Senior Housing RB		6.00%		05/01/2047		1,000		1,041,410
West St. Paul (City of) (Walker Thompson Hill, LLC); Series 2011A, Health Care Facilities RB ^(f)(g)		7.00%		09/01/2019		700		743,036

See accompanying notes which are an integral part of this schedule.

Invesco Municipal Income Opportunities Trust


	Interest Rate		Maturity Date		Principal Amount (000)		Value

Minnesota–(continued)

West St. Paul (City of) (Walker Westwood Ridge Campus); Series 2017, Ref. Housing & Health Care Facilities RB		5.00%		11/01/2049	$	2,750	$	2,876,252
								11,641,858

Mississippi–0.18%

Mississippi Business Finance Corp. (System Energy Resources, Inc.); Series 1998, PCR		5.88%		04/01/2022		620		621,265

Missouri–0.96%

Branson Hills Infrastructure Facilities Community Improvement District; Series 2007 A, Special Assessment RB		5.50%		04/01/2027		750		338,055
Kansas City (City of) Industrial Development Authority (Ward Parkway Center Community Improvement District); Series 2011, Sales Tax RB ^(f)(g)		6.75%		10/01/2018		1,000		1,016,320
Kirkwood (City of) Industrial Development Authority (Aberdeen Heights); Series 2010 A, Retirement Community RB ^(f)(g)		8.25%		05/15/2020		1,000		1,118,350
St. Louis (County of) Industrial Development Authority (Grand Center Redevelopment); Series 2011, Tax Increment Allocation Improvement RB		6.38%		12/01/2025		920		930,976
								3,403,701

Nebraska–0.31%

Gage (County of) Hospital Authority No. 1 (Beatrice Community Hospital & Health Center); Series 2010 B, Health Care Facilities RB ^(f)(g)		6.75%		06/01/2020		1,000		1,093,530

Nevada–1.29%

Clark (County of) (Stadium Improvement Bonds); Series 2018 A, Limited Tax GO Bonds ^(b)		5.00%		05/01/2048		3,000		3,483,750
Las Vegas (City of) Redevelopment Agency; Series 2009 A, Tax Increment Allocation RB ^(f)(g)		8.00%		06/15/2019		700		743,813
Sparks (City of) (Local Improvement District No. 3 - Legends at Sparks Marina); Series 2008, Special Assessment Limited Obligation Improvement RB ^(f)(g)		6.50%		09/01/2018		355		359,086
								4,586,649

New Hampshire–0.58%

New Hampshire (State of) Business Finance Authority (Huggins Hospital); Series 2009, First Mortgage RB ^(f)(g)		6.88%		10/01/2019		910		966,484
New Hampshire (State of) Health & Education Facilities Authority (Rivermead); Series 2011 A, RB		6.88%		07/01/2041		1,000		1,085,990
								2,052,474

New Jersey–2.58%

Essex (County of) Improvement Authority (Newark); Series 2010 A, RB		6.25%		11/01/2030		1,000		1,052,540
New Jersey (State of) Economic Development Authority (Continental Airlines, Inc.); Series 1999, Special Facility RB^(h)		5.25%		09/15/2029		1,000		1,090,930
Series 2012, Special Facility RB^(h)		5.75%		09/15/2027		1,000		1,105,840
New Jersey (State of) Economic Development Authority (Leap Academy); Series 2014 A, RB ^(e)		6.30%		10/01/2049		1,200		1,230,000
New Jersey (State of) Economic Development Authority (Paterson Charter School for Science and Technology Inc.); Series 2012 C, RB		5.30%		07/01/2044		1,000		918,100
New Jersey (State of) Transportation Trust Fund Authority; Series 2008 A, CAB Transportation System RB ⁽ⁱ⁾		0.00%		12/15/2037		5,000		2,033,500
New Jersey (State of) Turnpike Authority; Series 2017 B, Ref. RB ^(b)		5.00%		01/01/2040		1,500		1,730,490
								9,161,400

New Mexico–0.30%

New Mexico (State of) Hospital Equipment Loan Council (La Vida Llena); Series 2010 A, First Mortgage RB		6.13%		07/01/2040		1,000		1,050,220

New York–15.19%

Brooklyn Arena Local Development Corp. (Barclays Center); Series 2009, PILOT CAB RB⁽ⁱ⁾		0.00%		07/15/2035		1,475		765,422
Series 2009, PILOT CAB RB⁽ⁱ⁾		0.00%		07/15/2046		10,000		3,186,200
Hudson Yards Infrastructure Corp.; Series 2017 A, Ref. Second Indenture RB ^(b)		5.00%		02/15/2042		2,250		2,579,153

See accompanying notes which are an integral part of this schedule.

Invesco Municipal Income Opportunities Trust


	Interest Rate		Maturity Date		Principal Amount (000)		Value

New York–(continued)

Nassau (County of) Industrial Development Agency (Amsterdam at Harborside); Series 2014 A, Continuing Care Retirement Community RB		6.50%		01/01/2032	$	1,125	$	1,199,936
Series 2014 A, Continuing Care Retirement Community RB		6.70%		01/01/2049		500		533,625
Series 2014 C, Continuing Care Retirement Community RB		2.00%		01/01/2049		405		68,860
New York & New Jersey (States of) Port Authority; One Hundred Sixty-Ninth Series 2011, Consolidated RB^(b)(h)		5.00%		10/15/2027		1,700		1,843,123
One Hundred Sixty-Ninth Series 2011, Consolidated RB^(b)(h)		5.00%		10/15/2028		1,300		1,409,447
Two Hundred Fifth Series 2017, Ref. Consolidated RB^(b)		5.25%		11/15/2057		2,250		2,637,473
New York (City of) Industrial Development Agency (Brooklyn Navy Yard Cogen Partners); Series 1997, Industrial Development RB ^(h)		5.75%		10/01/2036		2,000		2,019,360
New York (City of) Industrial Development Agency (Queens Baseball Stadium); Series 2006, PILOT RB (INS-AMBAC)^(c)		5.00%		01/01/2039		500		506,300
New York (City of) Municipal Water Finance Authority; Series 2012 BB, Water & Sewer System Second General Resolution RB ^(b)		5.00%		06/15/2047		3,000		3,303,120
New York (City of) Transitional Finance Authority; Series 2013 I, Sub. Future Tax Sec. RB^(b)		5.00%		05/01/2042		2,400		2,660,256
Subseries 2012 F-1, Future Tax Sec. RB^(b)		5.00%		05/01/2039		6,000		6,564,480
New York (City of); Subseries 2016 A-1, Unlimited Tax GO Bonds ^(b)		5.00%		08/01/2038		2,250		2,578,680
New York (Counties of) Tobacco Trust V; Series 2005 S-2, Sub. Pass Through CAB RB ⁽ⁱ⁾		0.00%		06/01/2050		8,100		1,033,641
New York (Counties of) Tobacco Trust VI; Subseries 2016 A-1, Ref. Tobacco Settlement Pass Through RB		5.75%		06/01/2043		2,000		2,215,940
New York (State of) Dormitory Authority (Sales Tax); Series 2015 B-C, RB ^(b)		5.00%		03/15/2045		3,000		3,381,300
New York (State of) Dormitory Authority; Series 2014 C, State Personal Income Tax RB ^(b)		5.00%		03/15/2041		3,000		3,358,350
New York Liberty Development Corp. (3 World Trade Center); Series 2014, Class 3, Ref. Liberty RB ^(e)		7.25%		11/15/2044		1,000		1,193,090
New York Liberty Development Corp. (Bank of America Tower at One Bryant Park); Series 2010, Ref. Second Priority Liberty RB		6.38%		07/15/2049		1,000		1,056,970
New York Transportation Development Corp. (Delta Air Lines, Inc. LaGuardia Airport Terminal C&D Redevelopment); Series 2018, Special Facilities RB ^(h)		5.00%		01/01/2036		1,000		1,127,190
New York Transportation Development Corp. (LaGuardia Airport Terminal B Redevelopment); Series 2016 A, Special Facilities RB ^(b)(h)		5.00%		07/01/2046		1,750		1,899,468
Triborough Bridge & Tunnel Authority; Series 2017 A, General RB ^(b)		5.00%		11/15/2047		4,170		4,813,056
TSASC, Inc.; Series 2016 B, Ref. Sub. Tobacco Settlement Turbo RB		5.00%		06/01/2045		2,000		2,064,320
								53,998,760

North Carolina–1.51%

North Carolina (State of) Capital Facilities Finance Agency (Duke University); Series 2015 B, Ref. RB ^(b)		5.00%		10/01/2055		3,000		3,381,300
North Carolina (State of) Medical Care Commission (Aldersgate); Series 2013, Ref. First Mortgage Retirement Facilities RB		6.25%		07/01/2035		750		842,520
North Carolina (State of) Medical Care Commission (WhiteStone); Series 2011 A, First Mortgage Retirement Facilities RB ^(f)(g)		7.75%		03/01/2021		1,000		1,148,560
								5,372,380

North Dakota–0.28%

Burleigh (County of) (University of Mary); Series 2016, Education Facilities RB		5.20%		04/15/2046		1,000		1,004,280

Ohio–5.39%

Buckeye Tobacco Settlement Financing Authority; Series 2007 A-2, Sr. Asset-Backed Turbo RB		5.88%		06/01/2030		1,000		999,970
Series 2007 A-2, Sr. Asset-Backed Turbo RB		5.88%		06/01/2047		3,140		3,139,937
Series 2007 A-2, Sr. Asset-Backed Turbo RB		6.50%		06/01/2047		2,000		2,024,080
Series 2007 A-3, Sr. Asset-Backed RB		6.25%		06/01/2037		1,000		1,033,420
Series 2007 B, First Sub. Asset-Backed CAB RB⁽ⁱ⁾		0.00%		06/01/2047		34,540		2,868,202
Cleveland (City of) & Cuyahoga (County of) Port Authority (Constellation Schools); Series 2014 A, Ref. & Improvement Lease RB ^(e)		6.75%		01/01/2044		1,000		1,044,160
Cuyahoga (County of) (Metrohealth System); Series 2017, Ref. Hospital RB		5.50%		02/15/2057		2,000		2,207,600
Franklin (County of) (First Community Village Obligated Group); Series 2013, Ref. Health Care Facilities RB		5.63%		07/01/2047		600		606,954

See accompanying notes which are an integral part of this schedule.

Invesco Municipal Income Opportunities Trust


	Interest Rate		Maturity Date		Principal Amount (000)		Value

Ohio–(continued)

Gallia (County of) (Holzer Health System Obligated Group); Series 2012, Ref. & Improvement Hospital Facilities RB		8.00%		07/01/2042	$	970	$	1,114,113
Montgomery (County of) (St. Leonard); Series 2010, Ref. & Improvement Health Care & MFH RB		6.63%		04/01/2040		1,000		1,069,020
Muskingum (County of) (Genesis Healthcare System); Series 2013, Hospital Facilities RB		5.00%		02/15/2044		1,000		1,050,250
Ohio (State of) Air Quality Development Authority (FirstEnergy Generation Corp.); Series 2009 C, Ref. PCR ^(k)		5.63%		06/01/2018		1,000		960,000
Toledo-Lucas (County of) Port Authority (StoryPoint Waterville); Series 2016 A-1, RB ^(e)		6.38%		01/15/2051		1,000		1,043,290
								19,160,996

Oklahoma–1.17%

Oklahoma (State of) Development Finance Authority (Inverness Village Community); Series 2012, Ref. Continuing Care Retirement Community RB		6.00%		01/01/2032		1,000		703,030
Series 2013, Ref. Continuing Care Retirement Community RB		5.75%		01/01/2037		1,000		703,530
Oklahoma (State of) Development Finance Authority (OU Medicine); Series 2018 B, Health System RB		5.50%		08/15/2057		1,000		1,138,920
Payne (County of) Economic Development Authority (Epworth Living at the Ranch); Series 2016 A, RB		7.00%		11/01/2051		1,000		500,000
Tulsa (County of) Industrial Authority (Montereau, Inc.); Series 2010 A, Senior Living Community RB ^(f)(g)		7.25%		05/01/2020		1,000		1,097,000
								4,142,480

Pennsylvania–4.10%

Allegheny (County of) Industrial Development Authority (Propel Charter School-Montour); Series 2010 A, Charter School RB		6.75%		08/15/2035		890		939,199
Cumberland (County of) Municipal Authority (Asbury Pennsylvania Obligated Group); Series 2010, RB		6.13%		01/01/2045		965		1,004,362
Lehigh (County of) General Purpose Authority (Bible Fellowship Church Homes, Inc.); Series 2013, RB		5.25%		07/01/2042		1,000		1,016,810
Montgomery (County of) Industrial Development Authority (Philadelphia Presbytery Homes, Inc.); Series 2010, RB ^(f)(g)		6.63%		12/01/2021		1,000		1,152,310
Pennsylvania (Commonwealth of); First Series 2014, Unlimited Tax GO Bonds ^(b)		5.00%		06/15/2034		3,000		3,344,490
Pennsylvania (State of) Economic Development Financing Authority (USG Corp.); Series 1999, Solid Waste Disposal RB ^(h)		6.00%		06/01/2031		1,000		1,001,900
Pennsylvania (State of) Intergovernmental Cooperation Authority (City of Philadelphia Funding Program); Series 2009, Ref. Special Tax RB ^(b)		5.00%		06/15/2021		3,000		3,101,940
Pennsylvania (State of) Turnpike Commission; Second Series 2017, Ref. Sub. Turnpike RB		5.00%		12/01/2037		1,000		1,117,680
Philadelphia (City of) Industrial Development Authority (First Philadelphia Preparatory Charter School); Series 2014 A, RB		7.25%		06/15/2043		750		856,162
Philadelphia (City of) Industrial Development Authority (Performing Arts Charter School); Series 2013, RB ^(e)		6.75%		06/15/2043		1,000		1,051,710
								14,586,563

Puerto Rico–1.48%

Children’s Trust Fund; Series 2002, Tobacco Settlement Asset-Backed RB		5.50%		05/15/2039		500		498,750
Series 2002, Tobacco Settlement Asset-Backed RB		5.63%		05/15/2043		1,000		996,640
Series 2005 A, Tobacco Settlement Asset-Backed RB⁽ⁱ⁾		0.00%		05/15/2050		27,000		2,765,610
Puerto Rico (Commonwealth of) Public Buildings Authority; Series 2007 M-3, Ref. Government Facilities RB (INS-NATL)^(c)		6.00%		07/01/2024		1,000		1,000,990
								5,261,990

Tennessee–0.84%

Bristol (City of) Industrial Development Board (Pinnacle); Series 2016, Tax Increment Allocation RB		5.63%		06/01/2035		1,000		1,046,760
Shelby (County of) Health, Educational & Housing Facilities Board (Trezevant Manor); Series 2013 A, Ref. RB		5.50%		09/01/2047		1,000		961,980
Trenton (City of) Health & Educational Facilities Board (RHA/Trenton MR, Inc.); Series 2009, RB ^(f)(g)		9.25%		04/01/2019		930		986,284
								2,995,024

See accompanying notes which are an integral part of this schedule.

Invesco Municipal Income Opportunities Trust


	Interest Rate	Maturity Date	Principal Amount (000)		Value

Texas–7.78%

Arlington Higher Education Finance Corp. (Universal Academy); Series 2014 A, Education RB	7.13%	03/01/2044	$	800	$	824,688
Capital Area Cultural Education Facilities Finance Corp. (The Roman Catholic Diocese of Austin); Series 2005 B, RB	6.13%	04/01/2045		1,000		1,064,420
Central Texas Regional Mobility Authority; Series 2011, Sub. Lien RB ^(f)(g)	6.75%	01/01/2021		1,000		1,114,880
Clifton Higher Education Finance Corp. (Uplift Education); Series 2010 A, Education RB ^(f)(g)	6.25%	12/01/2020		1,000		1,102,540
HFDC of Central Texas, Inc. (Sears Tyler Methodist); Series 2009 A, RB ^(k)	7.75%	11/15/2044		1,000		10
Houston (City of) (Continental Airlines, Inc.); Series 2011 A, Ref. Airport System Special Facilities RB ^(h)	6.63%	07/15/2038		1,000		1,102,260
Houston Higher Education Finance Corp. (Cosmos Foundation, Inc.); Series 2011 A, RB ^(f)(g)	6.88%	05/15/2021		1,000		1,136,060
La Vernia Higher Education Finance Corp. (Knowledge is Power Program, Inc.); Series 2009 A, RB ^(f)(g)	6.25%	08/15/2019		1,000		1,051,950
La Vernia Higher Education Finance Corp. (Meridian World School); Series 2015 A, RB ^(e)	5.50%	08/15/2045		750		779,018
Mission Economic Development Corp. (CarbonLite Recycling LLC); Series 2016, Solid Waste Disposal RB ^(e)(h)	6.50%	12/01/2033		1,000		990,380
Mission Economic Development Corp. (Natgasoline); Series 2016 B, Sr. Lien RB ^(e)(h)	5.75%	10/01/2031		1,000		1,036,710
New Hope Cultural Education Facilities Finance Corp. (Longhorn Village); Series 2017, Ref. Retirement Facility RB	5.00%	01/01/2047		1,000		1,050,460
New Hope Cultural Education Facilities Finance Corp. (MRC Senior Living-The Langford); Series 2016 A, Retirement Facility RB	5.50%	11/15/2052		1,500		1,512,045
North Texas Tollway Authority; Series 2011 B, Special Project System CAB RB ^(f)(g)(i)	0.00%	09/01/2031		7,000		3,029,040
Port Beaumont Navigation District (Jefferson Energy Companies); Series 2016, Dock & Wharf Facility RB ^(e)(g)(h)	7.25%	02/13/2020		1,500		1,570,605
Red River Health Facilities Development Corp. (Sears Methodist Retirement System); Series 2013, Retirement Facility RB ^(k)(n)	6.15%	11/15/2049		978		0
Rowlett (City of) (Bayside Public Improvement District North Improvement Area); Series 2016, Special Assessment RB	6.00%	09/15/2046		490		476,951
Sanger Industrial Development Corp. (Texas Pellets); Series 2012 B, RB ^(h)(k)	8.00%	07/01/2038		990		237,600
Tarrant County Cultural Education Facilities Finance Corp. (Buckner Senior Living - Ventana); Series 2017, Retirement Facility RB	6.75%	11/15/2052		1,000		1,116,560
Tarrant County Cultural Education Facilities Finance Corp. (C.C. Young Memorial Home); Series 2017A, Retirement Facility RB	6.38%	02/15/2052		1,000		1,085,650
Tarrant County Cultural Education Facilities Finance Corp. (SQLC Senior Living Center at Corpus Christi, Inc.-Mirador); Series 2017 A, Retirement Facility RB^(k)	4.63%	11/15/2041		485		340,334
Series 2017 A, Retirement Facility RB^(k)	4.88%	11/15/2048		1,000		701,410
Tarrant County Cultural Education Facilities Finance Corp. (Stayton at Museum Way); Series 2009 A, Retirement Facility RB	8.25%	11/15/2044		860		855,700
Texas Private Activity Bond Surface Transportation Corp. (LBJ Infrastructure); Series 2010, Sr. Lien RB	7.00%	06/30/2040		1,000		1,092,850
Texas Private Activity Bond Surface Transportation Corp. (NTE Mobility Partners LLC North Tarrant Express Management Lanes); Series 2009, Sr. Lien RB	6.88%	12/31/2039		1,000		1,068,740
Texas Private Activity Bond Surface Transportation Corp. (NTE Mobility Partners LLC); Series 2013, Sr. Lien RB ^(h)	6.75%	06/30/2043		1,000		1,156,930
Texas State Public Finance Authority Charter School Finance Corp. (Odyssey Academy, Inc.); Series 2010 A, Education RB ^(f)(g)	7.13%	02/15/2020		1,000		1,084,540
Travis County Health Facilities Development Corp. (Westminster Manor); Series 2010, RB^(f)(g)	7.00%	11/01/2020		805		898,146
Series 2010, RB	7.00%	11/01/2030		150		160,662
						27,641,139

Utah–1.25%

Salt Lake City (City of); Series 2017 A, Airport RB ^(b)(h)	5.00%	07/01/2042		3,000		3,399,600
Utah (State of) Charter School Finance Authority (North Davis Preparatory Academy); Series 2010, Charter School RB	6.38%	07/15/2040		1,000		1,060,140
						4,459,740

Virginia–1.48%

Ballston Quarter Communities Development Authority; Series 2016 A, Tax Allocation RB	5.38%	03/01/2036		1,000		1,050,780
Peninsula Town Center Community Development Authority; Series 2007, Special Obligation RB	6.45%	09/01/2037		1,000		1,007,550

See accompanying notes which are an integral part of this schedule.

Invesco Municipal Income Opportunities Trust


	Interest Rate		Maturity Date		Principal Amount (000)		Value

Virginia–(continued)

Tobacco Settlement Financing Corp.; Series 2007 B-2, Sr. Tobacco Settlement RB		5.20%		06/01/2046	$	1,000	$	1,005,760
Virginia (State of) Small Business Financing Authority (Transform 66 P3); Series 2017, Sr. Lien Private Activity RB ^(h)		5.00%		12/31/2052		2,000		2,197,160
								5,261,250

Washington–2.35%

King (County of) Public Hospital District No. 4 (Snoqualmie Valley Hospital); Series 2011, Ref. & Improvement Limited Tax GO Bonds		7.00%		12/01/2040		1,000		1,037,120
King (County of) Public Hospital District No. 4; Series 2015 A, RB		6.25%		12/01/2045		1,000		1,016,110
King (County of); Series 2011 B, Ref. Sewer RB ^(b)(f)(g)		5.00%		01/01/2021		3,000		3,221,610
Washington (State of) Health Care Facilities Authority (Central Washington Health Services Association); Series 2009, RB ^(f)(g)		7.00%		07/01/2019		1,000		1,054,210
Washington (State of) Health Care Facilities Authority (Seattle Cancer Care Alliance); Series 2009, RB ^(f)(g)		7.38%		03/01/2019		1,200		1,249,476
Washington (State of) Housing Finance Commission (Heron’s Key Senior Living); Series 2015 A, RB ^(e)		7.00%		07/01/2050		740		790,446
								8,368,972

West Virginia–1.08%

Kanawha (County of) (The West Virginia State University Foundation); Series 2013, Student Housing RB		6.75%		07/01/2045		1,000		1,066,930
Monongalia (County of) Commission Special District (University Town Centre Economic Opportunity Development District); Series 2017 A, Ref. Excise Tax & Improvement RB ^(e)		5.75%		06/01/2043		1,000		1,047,870
West Virginia (State of) Economic Development Authority (Entsorga West Virginia LLC); Series 2016, Solid Waste Disposal Facilities RB ^(e)(h)		7.25%		02/01/2036		750		726,720
West Virginia (State of) Hospital Finance Authority (Thomas Health System); Series 2008, RB		6.50%		10/01/2038		1,000		1,006,410
								3,847,930

Wisconsin–6.80%

Wisconsin (State of) Health & Educational Facilities Authority (Ascension Senior Credit Group); Series 2016 A, Ref. RB ^(b)		5.00%		11/15/2039		3,000		3,400,980
Wisconsin (State of) Health & Educational Facilities Authority (Prohealth Care, Inc. Obligated Group); Series 2009, RB ^(f)(g)		6.38%		02/15/2019		1,500		1,547,925
Wisconsin (State of) Health & Educational Facilities Authority (St. John’s Community, Inc.); Series 2009 A, RB ^(f)(g)		7.63%		09/15/2019		1,000		1,072,580
Wisconsin (State of) Health & Educational Facilities Authority (Wisconsin Illinois Senior Housing, Inc.); Series 2012, RB		5.88%		08/01/2042		1,000		1,011,790
Series 2013, RB		7.00%		08/01/2043		1,025		1,070,192
Wisconsin (State of) Public Finance Authority (Alabama Proton Therapy Center); Series 2017 A, RB ^(e)		6.85%		10/01/2047		2,000		2,001,100
Wisconsin (State of) Public Finance Authority (American Dream at Meadowlands); Series 2017, Limited Obligation PILOT RB ^(e)		7.00%		12/01/2050		2,000		2,317,400
Wisconsin (State of) Public Finance Authority (Delray Beach Radiation Therapy Center); Series 2017 A, Sr. RB ^(e)		6.85%		11/01/2046		1,000		1,041,350
Wisconsin (State of) Public Finance Authority (Explore Academy); Series 2018 A, Educational Facility RB ^(e)		6.13%		02/01/2048		1,000		1,013,300
Wisconsin (State of) Public Finance Authority (Glenridge Palmer Ranch); Series 2011 A, Continuing Care Retirement Community RB		8.25%		06/01/2046		1,000		1,154,930
Wisconsin (State of) Public Finance Authority (KU Campus Development Corp. Central District Development); Series 2016, Lease Development RB ^(b)		5.00%		03/01/2046		3,000		3,321,990
Wisconsin (State of) Public Finance Authority (Million Air Two LLC General Aviation Facilities); Series 2017 A, Special Facilities RB ^(h)		7.25%		06/01/2035		1,500		1,554,000
Wisconsin (State of) Public Finance Authority (Prime Healthcare Foundation, Inc.); Series 2018 A, RB		5.20%		12/01/2037		1,500		1,598,280
Wisconsin (State of) Public Finance Authority (Roseman University of Health Sciences); Series 2015, Ref. RB		5.88%		04/01/2045		660		714,384

See accompanying notes which are an integral part of this schedule.

Invesco Municipal Income Opportunities Trust


	Interest Rate		Maturity Date		Principal Amount (000)		Value

Wisconsin–(continued)

Wisconsin (State of) Public Finance Authority (Voyager Foundation Inc.); Series 2012 A, Charter School RB		6.20%		10/01/2042	$	500	$	530,610
Wisconsin (State of) Public Finance Authority (WhiteStone); Series 2017, Ref. Retirement Facility RB ^(e)		5.00%		03/01/2037		760		823,323
								24,174,134
TOTAL INVESTMENTS IN SECURITIES^(o)–129.67% (Cost $436,917,596)								460,919,578
FLOATING RATE NOTE OBLIGATIONS–(22.21)%
Notes with interest and fee rates ranging from 1.58% to 1.98% at 05/31/2018 and contractual maturities of collateral ranging from 06/15/2021 to 11/15/2057 (See Note 1D) ^(p)								(78,940,000	)
VARIABLE RATE MUNI TERM PREFERRED SHARES-(8.40%)								(29,866,423	)
OTHER ASSETS LESS LIABILITIES–0.94%								3,351,501
NET ASSETS APPLICABLE TO COMMON SHARES–100.00%							$	355,464,656

Investment Abbreviations:


		NATL	— National Public Finance Guarantee Corp.
AGM	—Assured Guaranty Municipal Corp.	PCR	—Pollution Control Revenue Bonds
AMBAC	—American Municipal Bond Assurance Corp.	PILOT	—Payment-in-Lieu-of-Tax
CAB	—Capital Appreciation Bonds	RAC	—Revenue Anticipation Certificates
Conv.	—Convertible	RB	—Revenue Bonds
COP	—Certificates of Participation	Ref.	—Refunding
GO	—General Obligation	Sec.	—Secured
IDR	—Industrial Development Revenue Bonds	Sr.	—Senior
INS	—Insurer	Sub.	—Subordinated
Jr.	—Junior	VRD	—Variable Rate Demand
MFH	—Multi-Family Housing	Wts.	—Warrants

Notes to Schedule of Investments:

^(a)	Calculated as a percentage of net assets. Amounts in excess of 100% are due to the Trust’s use of leverage.

^(b)	Underlying security related to TOB Trusts entered into by the Trust. See Note 1D.

^(c)	Principal and/or interest payments are secured by the bond insurance company listed.

^(d)	Convertible CAB. The interest rate shown represents the coupon rate at which the bond will accrue at a specified future date.

^(e)

Security purchased or received in a transaction exempt from registration under the Securities Act of 1933, as amended (the “1933 Act”). The security may be resold pursuant to an exemption from registration under the 1933 Act, typically to qualified institutional buyers. The aggregate value of these securities at May 31, 2018 was $45,032,223, which represented 12.67% of the Trust’s Net Assets.

^(f)	Advance refunded; secured by an escrow fund of U.S. Government obligations or other highly rated collateral.

^(g)	Security has an irrevocable call by the issuer or mandatory put by the holder. Maturity date reflects such call or put.

^(h)	Security subject to the alternative minimum tax.

⁽ⁱ⁾	Zero coupon bond issued at a discount.

^(j)

Security is subject to a reimbursement agreement which may require the Trust to pay amounts to a counterparty in the event of a significant decline in the market value of the security underlying the TOB Trusts. In case of a shortfall, the maximum potential amount of payments the Trust could ultimately be required to make under the agreement is $4,000,000. However, such shortfall payment would be reduced by the proceeds from the sale of the security underlying the TOB Trusts.

^(k)	Defaulted security. Currently, the issuer is partially or fully in default with respect to interest payments. The aggregate value of these securities at May 31, 2018 was $3,184,954, which represented less than 1% of the Trust’s Net Assets.

^(l)	Security subject to crossover refunding.

^(m)	Demand security payable upon demand by the Trust at specified time intervals no greater than thirteen months. Interest rate is redetermined periodically based on current market interest rates. Rate shown is the rate in effect on May 31, 2018.

⁽ⁿ⁾	Security valued using significant unobservable inputs (Level 3). See Note 2.

^(o)	Entities may either issue, guarantee, back or otherwise enhance the credit quality of a security. The entities are not primarily responsible for the issuer’s obligation but may be called upon to satisfy issuers obligations. No concentration of any single entity was greater than 5% each.

^(p)

Floating rate note obligations related to securities held. The interest and fee rates shown reflect the rates in effect at May 31, 2018. At May 31, 2018, the Trust’s investments with a value of $131,126,887 are held by TOB Trusts and serve as collateral for the $78,940,000 in the floating rate note obligations outstanding at that date.

See accompanying notes which are an integral part of this schedule.

Invesco Municipal Income Opportunities Trust

Notes to Quarterly Schedule of Portfolio Holdings

May 31, 2018

(Unaudited)

NOTE 1 — Significant Accounting Policies

A.	Security Valuations – Securities, including restricted securities, are valued according to the following policy.

Securities are fair valued using an evaluated quote provided by an independent pricing service approved by the Board of Trustees. Evaluated quotes provided by the pricing service may be determined without exclusive reliance on quoted prices, and may reflect appropriate factors such as institution-size trading in similar groups of securities, developments related to specific securities, dividend rate (for unlisted equities), yield (for debt obligations), quality, type of issue, coupon rate (for debt obligations), maturity (for debt obligations), individual trading characteristics and other market data. Pricing services generally value debt obligations assuming orderly transactions of institutional round lot size, but a trust may hold or transact in the same securities in smaller, odd lot sizes. Odd lots often trade at lower prices than institutional round lots. Debt obligations are subject to interest rate and credit risks. In addition, all debt obligations involve some risk of default with respect to interest and/or principal payments.

Securities for which market quotations either are not readily available or became unreliable are valued at fair value as determined in good faith by or under the supervision of the Trust’s officers following procedures approved by the Board of Trustees. Some of the factors which may be considered in determining fair value are fundamental analytical data relating to the investment; the nature and duration of any restrictions on transferability or disposition; trading in similar securities by the same issuer or comparable companies; relevant political, economic or issuer specific news; and other relevant factors under the circumstances.

The Trust may invest in securities that are subject to interest rate risk, meaning the risk that the prices will generally fall as interest rates rise and, conversely, the prices will generally rise as interest rates fall. Specific securities differ in their sensitivity to changes in interest rates depending on their individual characteristics. Changes in interest rates may result in increased market volatility, which may affect the value and/or liquidity of certain Trust investments.

Valuations change in response to many factors including the historical and prospective earnings of the issuer, the value of the issuer’s assets, general economic conditions, interest rates, investor perceptions and market liquidity. Because of the inherent uncertainties of valuation, the values reflected in the financial statements may materially differ from the value received upon actual sale of those investments.

Securities Transactions and Investment Income – Securities transactions are accounted for on a trade date basis. Realized gains or losses on sales are computed on the basis of specific identification of the securities sold. Interest income (net of withholding tax, if any) is recorded on the accrual basis from settlement date. Bond premiums and discounts are amortized and/or accreted over the lives of the respective securities. Pay-in-kind interest income and non-cash dividend income received in the form of securities in-lieu of cash are recorded at the fair value of the securities received. Dividend income (net of withholding tax, if any) is recorded on the ex-dividend date.

The Trust may periodically participate in litigation related to Trust investments. As such, the Trust may receive proceeds from litigation settlements. Any proceeds received are included in the Statement of Operations as realized gain (loss) for investments no longer held and as unrealized gain (loss) for investments still held.

Brokerage commissions and mark ups are considered transaction costs and are recorded as an increase to the cost basis of securities purchased and/or a reduction of proceeds on a sale of securities. Such transaction costs are included in the determination of net realized and unrealized gain (loss) from investment securities reported in the Statement of Operations and the Statement of Changes in Net Assets and the net realized and unrealized gains (losses) on securities per share in the Financial Highlights. Transaction costs are included in the calculation of the Trust’s net asset value and, accordingly, they reduce the Trust’s total returns. These transaction costs are not considered operating expenses and are not reflected in net investment income reported in the Statement of Operations and the Statement of Changes in Net Assets, or the net investment income per share and the ratios of expenses and net investment income reported in the Financial Highlights, nor are they limited by any expense limitation arrangements between the Trust and the investment adviser.

Country Determination – For the purposes of making investment selection decisions and presentation in the Schedule of Investments, the investment adviser may determine the country in which an issuer is located and/or credit risk exposure based on various factors. These factors include the laws of the country under which the issuer is organized, where the issuer maintains a principal office, the country in which the issuer derives 50% or more of its total revenues and the country that has the primary market for the issuer’s securities, as well as other criteria. Among the other criteria that may be evaluated for making this determination are the country in which the issuer maintains 50% or more of its assets, the type of security, financial guarantees

Invesco Municipal Income Opportunities Trust

C.	Country Determination – (continued)

and enhancements, the nature of the collateral and the sponsor organization. Country of issuer and/or credit risk exposure has been determined to be the United States of America, unless otherwise noted.

Floating Rate Note Obligations – The Trust invests in inverse floating rate securities, such as Tender Option Bonds (“TOBs”), for investment purposes and to enhance the yield of the Trust. Such securities may be purchased in the secondary market without first owning an underlying bond but generally are created through the sale of fixed rate bonds by the Trust to special purpose trusts established by a broker dealer or by the Trust (“TOB Trusts”) in exchange for cash and residual interests in the TOB Trusts’ assets and cash flows, which are in the form of inverse floating rate securities. The TOB Trusts finance the purchases of the fixed rate bonds by issuing floating rate notes to third parties and allowing the Trust to retain residual interests in the bonds. The floating rate notes issued by the TOB Trusts have interest rates that reset weekly and the floating rate note holders have the option to tender their notes to the TOB Trusts for redemption at par at each reset date. The residual interests held by the Trust (inverse floating rate securities) include the right of the Trust (1) to cause the holders of the floating rate notes to tender their notes at par at the next interest rate reset date, and (2) to transfer the municipal bond from the TOB Trust to the Trust, thereby collapsing the TOB Trust. Inverse floating rate securities tend to underperform the market for fixed rate bonds in a rising interest rate environment, but tend to outperform the market for fixed rate bonds when interest rates decline or remain relatively stable.

The Trust generally invests in inverse floating rate securities that include embedded leverage, thus exposing the Trust to greater risks and increased costs. The primary risks associated with inverse floating rate securities are varying degrees of liquidity and decreases in the value of such securities in response to changes in interest rates to a greater extent than fixed rate securities having similar credit quality, redemption provisions and maturity, which may cause the Trust’s net asset value to be more volatile than if it had not invested in inverse floating rate securities. In certain instances, the short-term floating rate notes created by the TOB Trust may not be able to be sold to third parties or, in the case of holders tendering (or putting) such notes for repayment of principal, may not be able to be remarketed to third parties. In such cases, the TOB Trust holding the fixed rate bonds may be collapsed with the entity that contributed the fixed rate bonds to the TOB Trust. In the case where a TOB Trust is collapsed with the Trust, the Trust will be required to repay the principal amount of the tendered securities, which may require the Trust to sell other portfolio holdings to raise cash to meet that obligation. The Trust could therefore be required to sell other portfolio holdings at a disadvantageous time or price to raise cash to meet this obligation, which risk will be heightened during times of market volatility, illiquidity or uncertainty. The embedded leverage in the TOB Trust could cause the Trust to lose more money than the value of the asset it has contributed to the TOB Trust and greater levels of leverage create the potential for greater losses. In addition, a Trust may enter into reimbursement agreements with the liquidity provider of certain TOB transactions in connection with certain residuals held by the Trust. These agreements commit a Trust to reimburse the liquidity provider to the extent that the liquidity provider must provide cash to a TOB Trust, including following the termination of a TOB Trust resulting from a mandatory tender event (“liquidity shortfall”). The reimbursement agreement will effectively make the Trust liable for the amount of the negative difference, if any, between the liquidation value of the underlying security and the purchase price of the floating rate notes issued by the TOB Trust.

The Trust accounts for the transfer of fixed rate bonds to the TOB Trusts as secured borrowings, with the securities transferred remaining in the Trust’s investment assets, and the related floating rate notes reflected as Trust liabilities under the caption Floating rate note obligations on the Statement of Assets and Liabilities. The carrying amount of the Trust’s floating rate note obligations as reported on the Statement of Assets and Liabilities approximates its fair value. The Trust records the interest income from the fixed rate bonds under the caption Interest and records the expenses related to floating rate obligations and any administrative expenses of the TOB Trusts as a component of Interest, facilities and maintenance fees on the Statement of Operations.

Final rules implementing section 619 of the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Volcker Rule”) prohibit banking entities from engaging in proprietary trading of certain instruments and limit such entities’ investments in, and relationships with, “covered funds”, as defined in the rules. These rules preclude banking entities and their affiliates from sponsoring and/or providing services for existing TOB Trusts. A new TOB structure is being utilized by the Trust wherein the Trust, as holder of the residuals, will perform certain duties previously performed by banking entities as “sponsors” of TOB Trusts. These duties may be performed by a third-party service provider. The Trust’s expanded role under the new TOB structure may increase its operational and regulatory risk. The new structure is substantially similar to the previous structure; however, pursuant to the Volcker Rule, the remarketing agent would not be able to repurchase tendered floaters for its own account upon a failed remarketing. In the event of a failed remarketing, a banking entity serving as liquidity provider may loan the necessary funds to the TOB Trust to purchase the tendered floaters. The TOB Trust, not the Trust, would be the borrower and the loan from the liquidity provider will be secured by the purchased floaters now held by the TOB Trust. However, as previously described, the Trust would bear the risk of loss with respect to any liquidity shortfall to the extent it entered into a reimbursement agreement with the liquidity provider.

Invesco Municipal Income Opportunities Trust

D.	Floating Rate Note Obligations – (continued)

Further, the SEC and various banking agencies recently adopted rules implementing credit risk retention requirements for asset-backed securities (the “Risk Retention Rules”). The Risk Retention Rules require the sponsor of a TOB Trust to retain at least 5% of the credit risk of the underlying assets supporting the TOB Trust’s municipal bonds. The Trust has adopted policies intended to comply with the Risk Retention Rules. The Risk Retention Rules may adversely affect the Trust’s ability to engage in TOB Trust transactions or increase the costs of such transactions in certain circumstances.

There can be no assurances that the new TOB structure will continue to be a viable form of leverage. Further, there can be no assurances that alternative forms of leverage will be available to the Trust in order to maintain current levels of leverage. Any alternative forms of leverage may be less advantageous to the Trust, and may adversely affect the Trust’s net asset value, distribution rate and ability to achieve its investment objective.

TOBs are presently classified as private placement securities. Private placement securities are subject to restrictions on resale because they have not been registered under the Securities Act of 1933, as amended (the “1933 Act”), or are otherwise not readily marketable. As a result of the absence of a public trading market for these securities, they may be less liquid than publicly traded securities. Although atypical, these securities may be resold in privately negotiated transactions, the prices realized from these sales could be less than those originally paid by the Trust or less than what may be considered the fair value of such securities.

Other Risks – The value of, payment of interest on, repayment of principal for and the ability to sell a municipal security may be affected by constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives and the economics of the regions in which the issuers are located.

Since many municipal securities are issued to finance similar projects, especially those relating to education, health care, transportation and utilities, conditions in those sectors can affect the overall municipal securities market and the Trust’s investments in municipal securities.

There is some risk that a portion or all of the interest received from certain tax-free municipal securities could become taxable as a result of determinations by the Internal Revenue Service.

NOTE 2 — Additional Valuation Information

Generally Accepted Accounting Principles (“GAAP”) defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, under current market conditions. GAAP establishes a hierarchy that prioritizes the inputs to valuation methods, giving the highest priority to readily available unadjusted quoted prices in an active market for identical assets (Level 1) and the lowest priority to significant unobservable inputs (Level 3), generally when market prices are not readily available or are unreliable. Based on the valuation inputs, the securities or other investments are tiered into one of three levels. Changes in valuation methods may result in transfers in or out of an investment’s assigned level:


		Level 1 –		Prices are determined using quoted prices in an active market for identical assets.
		Level 2 –		Prices are determined using other significant observable inputs. Observable inputs are inputs that other market participants may use in pricing a security. These may include quoted prices for similar securities, interest rates, prepayment speeds, credit risk, yield curves, loss severities, default rates, discount rates, volatilities and others.
		Level 3 –		Prices are determined using significant unobservable inputs. In situations where quoted prices or observable inputs are unavailable (for example, when there is little or no market activity for an investment at the end of the period), unobservable inputs may be used. Unobservable inputs reflect the Fund’s own assumptions about the factors market participants would use in determining fair value of the securities or instruments and would be based on the best available information.

The following is a summary of the tiered valuation input levels, as of May 31, 2018. The level assigned to the securities valuations may not be an indication of the risk or liquidity associated with investing in those securities. Because of the inherent uncertainties of valuation, the values reflected in the financial statements may materially differ from the value received upon actual sale of those investments.

The Fund’s policy is to recognize transfers in and out of the valuation levels as of the end of the reporting period. During the three months ended May 31, 2018, there were no material transfers between valuation levels.


	Level 1		Level 2		Level 3		Total
Investments in Securities
Municipal Obligations	$	—	$	460,919,578	$	0	$	460,919,578

Invesco Municipal Income Opportunities Trust

Item 2.

Controls and Procedures.

(a)

As of May 18, 2018, an evaluation was performed under the supervision and with the participation of the officers of the Registrant, including the Principal Executive Officer (“PEO”) and Principal Financial Officer (“PFO”), to assess the effectiveness of the Registrant’s disclosure controls and procedures, as that term is defined in Rule 30a-3(c) under the Investment Company Act of 1940 (“Act”), as amended. Based on that evaluation, the Registrant’s officers, including the PEO and PFO, concluded that, as of May 18, 2018, the Registrant’s disclosure controls and procedures were reasonably designed so as to ensure: (1) that information required to be disclosed by the Registrant on Form N-Q is recorded, processed, summarized and reported within the time periods specified by the rules and forms of the Securities and Exchange Commission; and (2) that material information relating to the Registrant is made known to the PEO and PFO as appropriate to allow timely decisions regarding required disclosure.

(b)

There have been no changes in the Registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the Act) that occurred during the Registrant’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the Registrant’s internal control over financial reporting.

Item 3.

Exhibits.

Certifications of PEO and PFO as required by Rule 30a-2(a) under the Investment Company Act of 1940.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Registrant: Invesco Municipal Income Opportunities Trust


By:		/s/ Sheri Morris
		Sheri Morris
		Principal Executive Officer

Date:		July 30, 2018

Pursuant to the requirements of the Securities and Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.


By:		/s/ Sheri Morris
		Sheri Morris
		Principal Executive Officer

Date:		July 30, 2018


By:		/s/ Kelli Gallegos
		Kelli Gallegos
		Principal Financial Officer

Date:		July 30, 2018

EXHIBIT INDEX

Certifications of Principal Executive Officer (“PEO”) and Principal Financial Officer (“PFO”) as required by Rule 30a-2(a) under the Investment Company Act of 1940, as amended.