Nuveen Select Tax Free Income Portfolio 2 (NXQ) NPORT-P Nuveen Select Tax-Free Income Portfolio 2 (Jun 2021 report)

_NXQ

Nuveen Select Tax-Free Income Portfolio 2

Portfolio of Investments    June 30, 2021

(Unaudited)

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	LONG-TERM INVESTMENTS – 98.4%
	MUNICIPAL BONDS – 98.0%
	Arizona – 6.2%
$1,015	Arizona Board of Regents, Arizona State University System Revenue Bonds, Series 2020B, 4.000%, 7/01/47	7/30 at 100.00	AA	1,206,338
2,500	Arizona Industrial Development Authority, Hospital Revenue Bonds, Phoenix Children's Hospital, Series 2020A, 4.000%, 2/01/50	2/30 at 100.00	A1	2,901,400
95	Maricopa County Industrial Development Authority, Arizona, Education Revenue Bonds, Paradise Schools Projects, Series 2016, 2.875%, 7/01/21, 144A	No Opt. Call	BB+	95,000
1,000	Maricopa County Industrial Development Authority, Arizona, Revenue Bonds, Banner Health, Refunding Series 2016A, 5.000%, 1/01/38	1/27 at 100.00	AA-	1,201,180
1,950	McAllister Academic Village LLC, Arizona, Revenue Bonds, Arizona State University Hassayampa Academic Village Project, Refunding Series 2016, 5.000%, 7/01/37	7/26 at 100.00	AA-	2,328,514
1,250	Phoenix Civic Improvement Corporation, Arizona, Airport Revenue Bonds, Junior Lien Series 2015A, 5.000%, 7/01/34	7/25 at 100.00	A1	1,461,200
3,000	Phoenix Civic Improvement Corporation, Arizona, Airport Revenue Bonds, Junior Lien Series 2019A, 5.000%, 7/01/49	7/29 at 100.00	A1	3,779,640
1,160	Phoenix Industrial Development Authority, Arizona, Lease Revenue Bonds, Rowan University Project, Series 2012, 5.000%, 6/01/42	6/22 at 100.00	A	1,205,727
2,250	Salt Verde Financial Corporation, Arizona, Senior Gas Revenue Bonds, Citigroup Energy Inc Prepay Contract Obligations, Series 2007, 5.000%, 12/01/37	No Opt. Call	A3	3,176,055
14,220	Total Arizona			17,355,054
	California – 14.9%
11,000	Alhambra Unified School District, Los Angeles County, California, General Obligation Bonds, Capital Appreciation Series 2009B, 0.000%, 8/01/41 –  AGC Insured	No Opt. Call	AA	7,171,670
45	California County Tobacco Securitization Agency, Tobacco Settlement Asset-Backed Bonds, Los Angeles County Securitization Corporation, Series 2020A, 4.000%, 6/01/49	6/30 at 100.00	BBB+	53,321
2,440	Eureka Unified School District, Humboldt County, California, General Obligation Bonds, Series 2002, 0.000%, 8/01/27 –  AGM Insured	No Opt. Call	AA	2,255,829
3,290	Folsom Cordova Unified School District, Sacramento County, California, General Obligation Bonds, School Facilities Improvement District 4, Series 2007A, 0.000%, 10/01/24 –  NPFG Insured	No Opt. Call	Aa2	3,214,396
3,030	Grossmont Union High School District, San Diego County, California, General Obligation Bonds, Series 2006, 0.000%, 8/01/25 –  NPFG Insured	No Opt. Call	Aa2	2,943,009
1,495	Huntington Beach Union High School District, Orange County, California, General Obligation Bonds, Series 2007, 0.000%, 8/01/33 –  FGIC Insured	No Opt. Call	Aa2	1,199,140
1,160	Mount San Antonio Community College District, Los Angeles County, California, General Obligation Bonds, Election of 2008, Series 2013A, 0.000%, 8/01/43 (4)	8/35 at 100.00	Aa1	1,324,674
450	M-S-R Energy Authority, California, Gas Revenue Bonds, Citigroup Prepay Contracts, Series 2009C, 6.500%, 11/01/39	No Opt. Call	A	742,680

1

NXQ	Nuveen Select Tax-Free Income Portfolio 2 (continued)
	Portfolio of Investments June 30, 2021
	(Unaudited)

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	California (continued)
$1,195	Palmdale School District, Los Angeles County, California, General Obligation Bonds, Series 2003, 0.000%, 8/01/28 –  AGM Insured	No Opt. Call	AA	1,081,654
4,620	Palomar Pomerado Health, California, General Obligation Bonds, Capital Appreciation, Election of 2004, Series 2007A, 0.000%, 8/01/24 –  NPFG Insured	No Opt. Call	A2	4,510,829
4,400	Pittsburg Redevelopment Agency, California, Tax Allocation Bonds, Los Medanos Community Development Project, Series 1999, 0.000%, 8/01/29 –  AMBAC Insured	No Opt. Call	AA-	3,829,012
2,500	Placentia-Yorba Linda Unified School District, Orange County, California, Certificates of Participation, Series 2006, 0.000%, 10/01/34 –  FGIC Insured (ETM)	No Opt. Call	A1 (5)	2,034,875
2,755	Sacramento City Unified School District, Sacramento County, California, General Obligation Bonds, Series 2007, 0.000%, 7/01/25 –  AGM Insured	No Opt. Call	A2	2,654,084
1,395	San Diego Association of Governments, California, South Bay Expressway Toll Revenue Bonds, First Senior Lien Series 2017A, 5.000%, 7/01/42	7/27 at 100.00	A	1,679,747
1,305	San Diego County Regional Airport Authority, California, Airport Revenue Bonds, Subordinate Series 2019B, 5.000%, 7/01/39 (AMT)	7/29 at 100.00	A+	1,638,219
6,025	Simi Valley Unified School District, Ventura County, California, General Obligation Bonds, Series 2007C, 0.000%, 8/01/30	No Opt. Call	AA	5,152,459
47,105	Total California			41,485,598
	Colorado – 8.4%
540	Colorado Health Facilities Authority, Colorado, Revenue Bonds, CommonSpirit Health, Series 2019A-2, 4.000%, 8/01/49	8/29 at 100.00	BBB+	613,969
1,580	Colorado School of Mines Board of Trustees, Golden, Colorado, Institutional Enterprise Revenue Bonds, Series 2017B, 5.000%, 12/01/47	12/27 at 100.00	A+	1,967,384
1,190	Colorado Springs, Colorado, Utilities System Revenue Bonds, Refunding Series 2020A, 4.000%, 11/15/45	11/30 at 100.00	AA+	1,440,269
445	Colorado State, Certificates of Participation, Rural Series 2020A, 4.000%, 12/15/38	12/30 at 100.00	Aa2	539,362
1,935	Denver City and County, Colorado, Airport System Revenue Bonds, Subordinate Lien Series 2013B, 5.000%, 11/15/43	11/23 at 100.00	A+	2,135,660
	E-470 Public Highway Authority, Colorado, Senior Revenue Bonds, Series 2000B:
5,140	0.000%, 9/01/24 –  NPFG Insured	No Opt. Call	A	5,032,728
8,100	0.000%, 9/01/29 –  NPFG Insured	No Opt. Call	A	7,154,325
4,475	0.000%, 9/01/33 –  NPFG Insured	No Opt. Call	A	3,548,228
715	E-470 Public Highway Authority, Colorado, Senior Revenue Bonds, Series 2020A, 5.000%, 9/01/36	9/30 at 100.00	A	931,230
24,120	Total Colorado			23,363,155
	Connecticut – 3.1%
705	Connecticut Health and Educational Facilities Authority, Revenue Bonds, Yale-New Haven Health Issue, Series 2014D, 1.800%, 7/01/49	1/24 at 100.00	AA-	730,599
2,600	Connecticut State, General Obligation Bonds, Green Series 2014G, 5.000%, 11/15/31	11/24 at 100.00	Aa3	2,970,032
1,000	Connecticut State, General Obligation Bonds, Refunding Series 2012E, 5.000%, 9/15/32	9/22 at 100.00	Aa3	1,052,170
1,000	Connecticut State, General Obligation Bonds, Series 2018C, 5.000%, 6/15/26	No Opt. Call	Aa3	1,217,420
2,490	Connecticut State, Special Tax Obligation Bonds, Transportation Infrastructure Purposes Series 2013A, 5.000%, 10/01/33	10/23 at 100.00	AA-	2,727,471
7,795	Total Connecticut			8,697,692

2

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	District of Columbia – 2.3%
$985	Metropolitan Washington Airports Authority, Virginia, Dulles Toll Road Revenue Bonds, Dulles Metrorail & Capital improvement Projects, Refunding & Subordinate Lien Series 2019B, 4.000%, 10/01/44	10/29 at 100.00	A-	1,137,557
1,500	Metropolitan Washington Airports Authority, Virginia, Dulles Toll Road Revenue Bonds, Dulles Metrorail & Capital improvement Projects, Second Senior Lien Series 2009C, 6.500%, 10/01/41 –  AGC Insured	10/26 at 100.00	AA	1,924,365
	Metropolitan Washington DC Airports Authority, Airport System Revenue Bonds, Refunding Series 2021A:
920	5.000%, 10/01/29 (AMT) (WI/DD, Settling 7/8/21)	No Opt. Call	Aa3	1,196,929
1,065	5.000%, 10/01/46 (AMT) (WI/DD, Settling 7/8/21)	10/31 at 100.00	Aa3	1,380,038
600	Washington Metropolitan Area Transit Authority, District of Columbia, Dedicated Revenue Bonds, Series 2020A, 4.000%, 7/15/45	7/30 at 100.00	AA	719,220
5,070	Total District of Columbia			6,358,109
	Florida – 3.4%
1,040	Broward County, Florida, Airport System Revenue Bonds, Series 2017, 5.000%, 10/01/47 (AMT)	10/27 at 100.00	A1	1,251,557
1,155	Greater Orlando Aviation Authority, Florida, Orlando Airport Facilities Revenue Bonds, Priority Subordinated Series 2017, 5.000%, 10/01/47 (AMT)	10/27 at 100.00	A1	1,389,950
1,500	Lakeland, Florida, Hospital System Revenue Bonds, Lakeland Regional Health, Series 2015, 5.000%, 11/15/45	11/24 at 100.00	A2	1,676,460
2,000	Miami-Dade County, Florida, Aviation Revenue Bonds, Refunding Series 2019A, 5.000%, 10/01/49 (AMT)	10/29 at 100.00	A	2,487,640
2,000	Miami-Dade County, Florida, General Obligation Bonds, Build Better Communities Program, Series 2013A, 5.000%, 7/01/30	7/25 at 100.00	AA	2,356,120
205	Tampa, Florida, Revenue Bonds, H Lee Moffitt Cancer Center and Research Institute, Series 2020B, 4.000%, 7/01/45	7/30 at 100.00	A2	238,671
7,900	Total Florida			9,400,398
	Georgia – 0.6%
1,330	Brookhaven Development Authority, Georgia, Revenue Bonds, Children's Healthcare of Atlanta, Inc Project, Series 2019A, 4.000%, 7/01/44	7/29 at 100.00	AA+	1,567,964
	Guam – 1.8%
3,000	Government of Guam, Business Privilege Tax Bonds, Refunding Series 2015D, 5.000%, 11/15/39	11/25 at 100.00	BB	3,423,630
1,460	Guam Government Waterworks Authority, Water and Wastewater System Revenue Bonds, Series 2016, 5.000%, 1/01/46	7/26 at 100.00	A-	1,657,042
4,460	Total Guam			5,080,672
	Hawaii – 0.1%
230	Hawaii State, Harbor System Revenue Bonds, Series 2020A, 4.000%, 7/01/35 (AMT)	7/30 at 100.00	Aa3	275,505
	Idaho – 1.6%
4,000	Idaho Health Facilities Authority, Revenue Bonds, Saint Luke's Health System Project, Series 2014A, 5.000%, 3/01/44	3/24 at 100.00	A-	4,396,720

3

NXQ	Nuveen Select Tax-Free Income Portfolio 2 (continued)
	Portfolio of Investments June 30, 2021
	(Unaudited)

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Illinois – 10.7%
$1,615	Board of Trustees of Southern Illinois University, Housing and Auxiliary Facilities System Revenue Bonds, Series 1999A, 0.000%, 4/01/23 –  NPFG Insured	No Opt. Call	Baa2	1,576,127
750	Chicago Board of Education, Illinois, Dedicated Capital Improvement Tax Revenue Bonds, Series 2016, 6.000%, 4/01/46	4/27 at 100.00	A-	933,675
735	Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues Series 2011A, 5.000%, 12/01/41	12/21 at 100.00	BB	748,090
760	Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues, Refunding Series 2017C, 5.000%, 12/01/30	12/27 at 100.00	BB	940,561
365	Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues, Series 2016B, 6.500%, 12/01/46	12/26 at 100.00	BB	458,626
2,245	Illinois Finance Authority, Revenue Bonds, Northwestern Memorial HealthCare, Series 2013, 5.000%, 8/15/43	8/22 at 100.00	AA+	2,355,432
2,070	Illinois State, General Obligation Bonds, Refunding September Series 2018B, 5.000%, 10/01/23	No Opt. Call	Baa2	2,279,422
2,500	Illinois Toll Highway Authority, Toll Highway Revenue Bonds, Senior Lien Series 2019A, 4.000%, 1/01/39	7/29 at 100.00	AA-	2,920,625
	Metropolitan Pier and Exposition Authority, Illinois, Revenue Bonds, McCormick Place Expansion Project, Series 2002A:
6,350	0.000%, 12/15/31 –  NPFG Insured	No Opt. Call	BBB	5,093,843
1,350	0.000%, 6/15/35 –  NPFG Insured	No Opt. Call	BBB	973,593
5,000	0.000%, 12/15/36 –  NPFG Insured	No Opt. Call	BBB	3,446,900
9,370	0.000%, 6/15/39 –  NPFG Insured	No Opt. Call	BBB	5,916,499
1,825	Springfield, Illinois, Electric Revenue Bonds, Refunding Senior Lien Series 2015, 5.000%, 3/01/28	3/25 at 100.00	A	2,113,642
34,935	Total Illinois			29,757,035
	Indiana – 3.1%
1,600	Indiana Bond Bank, Special Program Bonds, Carmel Junior Waterworks Project, Series 2008B, 0.000%, 6/01/30 –  AGM Insured	No Opt. Call	AA	1,367,808
2,040	Indiana Finance Authority, Hospital Revenue Bonds, Indiana University Health Obligation Group, Refunding 2015A, 5.000%, 12/01/40	6/25 at 100.00	AA	2,360,443
1,825	Indiana Finance Authority, Hospital Revenue Bonds, Marion General Hospital Project, Series 2020A, 4.000%, 7/01/40	7/30 at 100.00	A	2,145,671
2,500	Indiana Finance Authority, Wastewater Utility Revenue Bonds, CWA Authority Project, Series 2015A, 5.000%, 10/01/45	10/24 at 100.00	AA	2,835,300
7,965	Total Indiana			8,709,222
	Iowa – 0.3%
830	Iowa Finance Authority, Iowa, Midwestern Disaster Area Revenue Bonds, Iowa Fertilizer Company Project, Series 2018B, 5.250%, 12/01/50 (Mandatory Put 12/01/37)	12/22 at 105.00	BB-	915,507
	Kentucky – 1.3%
2,500	Kentucky Economic Development Finance Authority, Hospital Revenue Bonds, Baptist Healthcare System Obligated Group, Series 2011, 5.250%, 8/15/46 (Pre-refunded 8/15/21)	8/21 at 100.00	N/R (5)	2,515,075

4

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Kentucky (continued)
$805	Kentucky Public Transportation Infrastructure Authority, First Tier Toll Revenue Bonds, Downtown Crossing Project, Convertible Capital Appreciation Series 2013C, 0.000%, 7/01/43 (4)	7/31 at 100.00	Baa2	993,861
3,305	Total Kentucky			3,508,936
	Louisiana – 0.8%
1,870	Jefferson Sales Tax District, Jefferson Parish, Louisiana, Special Sales Tax Revenue Bonds, Series 2017B, 5.000%, 12/01/42 –  AGM Insured	12/27 at 100.00	AA	2,326,243
	Maryland – 0.4%
1,000	Maryland Health and Higher Educational Facilities Authority, Revenue Bonds, Johns Hopkins Health System Obligated Group Issue, Series 2012B, 5.000%, 7/01/27 (Pre-refunded 7/01/22)	7/22 at 100.00	Aa2 (5)	1,048,510
	Massachusetts – 5.5%
2,200	Massachusetts Bay Transportation Authority, Assessment Bonds, Series 2012A, 5.000%, 7/01/41	7/22 at 100.00	AAA	2,301,530
2,000	Massachusetts Development Finance Agency, Revenue Bonds, CareGroup Issue, Series 2018J-2, 5.000%, 7/01/43	7/28 at 100.00	A	2,442,520
1,675	Massachusetts Development Finance Agency, Revenue Bonds, Olin College, Series 2013E, 5.000%, 11/01/43	11/23 at 100.00	A	1,840,356
2,250	Massachusetts Development Finance Agency, Revenue Bonds, Partners HealthCare System, Series 2014M-4, 5.000%, 7/01/44 (Pre-refunded 7/01/23)	7/23 at 100.00	AA- (5)	2,466,112
400	Massachusetts Development Finance Agency, Revenue Bonds, UMass Memorial Health Care Obligated Group Issue, Series 2017L, 3.625%, 7/01/37	7/27 at 100.00	A-	435,212
2,100	Massachusetts School Building Authority, Dedicated Sales Tax Revenue Bonds, Subordinated Series 2019A, 5.000%, 2/15/49	2/26 at 100.00	AA+	2,505,048
2,115	Massachusetts State, Transportation Fund Revenue Bonds, Rail Enhancement & Accelerated Bridge Programs, Series 2017A, 5.000%, 6/01/42	6/27 at 100.00	AA+	2,608,451
730	Massachusetts Water Resources Authority, General Revenue Bonds, Refunding Series 2011C, 5.250%, 8/01/42 (Pre-refunded 8/01/21)	8/21 at 100.00	AA+ (5)	733,030
13,470	Total Massachusetts			15,332,259
	Michigan – 1.2%
355	Detroit Water and Sewerage Department, Michigan, Sewage Disposal System Revenue Bonds, Refunding Senior Lien Series 2012A, 5.250%, 7/01/39 (Pre-refunded 7/01/22)	7/22 at 100.00	AA- (5)	373,105
385	Michigan State Building Authority, Revenue Bonds, Facilities Program, Refunding Series 2015-I, 5.000%, 4/15/38	10/25 at 100.00	Aa2	453,730
2,000	Michigan State Building Authority, Revenue Bonds, Facilities Program, Refunding Series 2016-I, 5.000%, 4/15/35	10/26 at 100.00	Aa2	2,411,680
2,740	Total Michigan			3,238,515
	Nebraska – 0.7%
545	Douglas County Hospital Authority 3, Nebraska, Health Facilities Revenue Bonds, Nebraska Methodist Health System, Refunding Series 2015, 4.125%, 11/01/36	11/25 at 100.00	A	608,362
305	Madison County Hospital Authority 1, Nebraska, Hospital Revenue Bonds, Faith Regional Health Services Project, Series 2018, 5.000%, 7/01/27	7/25 at 100.00	BBB	353,010

5

NXQ	Nuveen Select Tax-Free Income Portfolio 2 (continued)
	Portfolio of Investments June 30, 2021
	(Unaudited)

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Nebraska (continued)
$1,000	Nebraska Public Power District, General Revenue Bonds, Series 2015A-2, 5.000%, 1/01/40	1/22 at 100.00	A+	1,024,090
1,850	Total Nebraska			1,985,462
	Nevada – 1.7%
990	Carson City, Nevada, Hospital Revenue Bonds, Carson Tahoe Regional Healthcare Project, Series 2017A, 5.000%, 9/01/37	9/27 at 100.00	A-	1,188,911
3,000	Las Vegas Valley Water District, Nevada, General Obligation Bonds, Refunding Series 2015, 5.000%, 6/01/34	12/24 at 100.00	Aa1	3,445,710
3,990	Total Nevada			4,634,621
	New Jersey – 3.2%
1,255	Delaware River Port Authority, New Jersey and Pennsylvania, Revenue Bonds, Series 2013, 5.000%, 1/01/37	1/24 at 100.00	A+	1,393,037
2,000	New Jersey Economic Development Authority, School Facilities Construction Bonds, Refunding Series 2016BBB, 5.500%, 6/15/31	12/26 at 100.00	Baa1	2,473,920
2,000	New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Series 2015AA, 5.250%, 6/15/29	6/25 at 100.00	Baa1	2,355,860
2,400	New Jersey Turnpike Authority, Turnpike Revenue Bonds, Series 2021A, 4.000%, 1/01/51	1/31 at 100.00	A+	2,850,456
7,655	Total New Jersey			9,073,273
	New Mexico – 1.1%
1,000	Albuquerque, New Mexico, Refuse Removal and Disposal Revenue Bonds, Series 2020, 4.000%, 7/01/43	7/30 at 100.00	AA	1,204,070
800	New Mexico Hospital Equipment Loan Council, First Mortgage Revenue Bonds, Haverland Carter Lifestyle Group, Series 2013, 5.000%, 7/01/42	7/22 at 100.00	BBB-	823,760
1,000	New Mexico Mortgage Finance Authority, Multifamily Housing Revenue Bonds, St Anthony, Series 2007A, 5.250%, 9/01/42 (AMT)	7/21 at 100.00	N/R	1,003,910
2,800	Total New Mexico			3,031,740
	New York – 2.8%
3,800	Dormitory Authority of the State of New York, State Personal Income Tax Revenue Bonds, General Purpose, Series 2020A Bidding Group 1 thru 5, 4.000%, 3/15/44	9/30 at 100.00	AA+	4,514,172
455	Hudson Yards Infrastructure Corporation, New York, Revenue Bonds, Senior Fiscal 2012 Series 2011A, 5.250%, 2/15/47	8/21 at 100.00	AA-	456,715
1,000	Metropolitan Transportation Authority, New York, Transportation Revenue Bonds, Green Climate Bond Certified Series 2019A-1, 5.000%, 11/15/48 (Mandatory Put 11/15/24)	No Opt. Call	A3	1,144,010
1,250	Metropolitan Transportation Authority, New York, Transportation Revenue Bonds, Refunding Series 2012F, 5.000%, 11/15/26	11/22 at 100.00	A3	1,325,213
500	TSASC Inc, New York, Tobacco Settlement Asset-Backed Bonds, Fiscal 2017 Series B, 5.000%, 6/01/24	No Opt. Call	B-	524,365
7,005	Total New York			7,964,475
	Ohio – 0.7%
330	Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Revenue Bonds, Refunding Senior Lien Series 2020A-2 Class 1, 4.000%, 6/01/48	6/30 at 100.00	BBB+	385,978

6

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Ohio (continued)
$315	Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Revenue Bonds, Refunding Senior Lien Series 2020B-2 Class 2, 5.000%, 6/01/55	6/30 at 100.00	N/R	368,238
1,105	Ohio State, Turnpike Revenue Bonds, Ohio Turnpike and Infrastructure Commission Infrastructure Projects, Junior Lien, Current Interest Series 2013A-1, 5.000%, 2/15/48 (Pre-refunded 2/15/23)	2/23 at 100.00	Aa3 (5)	1,190,704
1,000	Ohio Water Development Authority, Pollution Control Revenue Bonds, FirstEnergy Nuclear Generating Corporation Project, Refunding Series 2005B, 4.000%, 1/01/34 (6)	No Opt. Call	N/R	1,250
2,750	Total Ohio			1,946,170
	Oklahoma – 0.2%
450	Oklahoma Development Finance Authority, Health System Revenue Bonds, OU Medicine Project, Series 2018B, 5.000%, 8/15/38	8/28 at 100.00	Baa3	545,926
	Oregon – 1.5%
915	Beaverton School District 48J, Washington and Multnomah Counties, Oregon, General Obligation Bonds, Convertible Deferred Interest Series 2017D, 5.000%, 6/15/36	6/27 at 100.00	AA+	1,122,934
605	Beaverton, Oregon, Special Revenue Bonds, Series 2020A, 4.000%, 6/01/37	6/30 at 100.00	Aa3	730,906
60	Clackamas Community College District, Oregon, General Obligation Bonds, Deferred Interest Series 2017A, 5.000%, 6/15/40	6/27 at 100.00	Aa1	72,757
500	Clackamas County Hospital Facility Authority, Oregon, Senior Living Revenue Bonds, Willamette View Project, Series 2017A, 5.000%, 11/15/52	11/25 at 102.00	N/R	551,165
500	Lake Oswego, Oregon, General Obligation Bonds, Series 2013, 5.000%, 6/01/26	6/23 at 100.00	AAA	545,160
1,090	Oregon Facilities Authority, Revenue Bonds, Reed College, Series 2017A, 4.000%, 7/01/41	7/27 at 100.00	Aa2	1,266,667
3,670	Total Oregon			4,289,589
	Pennsylvania – 2.1%
500	Beaver County Industrial Development Authority, Pennsylvania, Pollution Control Revenue Refunding Bonds, FirstEnergy Generation Project, Series 2008B, 3.750%, 10/01/47	4/31 at 100.00	N/R	539,855
1,500	Pennsylvania Higher Educational Facilities Authority, Revenue Bonds, State System of Higher Education, Refunding Series 2016AT-1, 5.000%, 6/15/31	6/26 at 100.00	Aa3	1,801,995
2,970	Philadelphia, Pennsylvania, Water and Wastewater Revenue Bonds, Series 2015A, 5.000%, 7/01/40 (Pre-refunded 7/01/24)	7/24 at 100.00	A+ (5)	3,384,255
260	Pittsburgh Water and Sewer Authority, Pennsylvania, Water and Sewer System Revenue Bonds, First Lien Series 2020B, 3.000%, 9/01/40 –  AGM Insured	9/30 at 100.00	AA	285,571
5,230	Total Pennsylvania			6,011,676
	Puerto Rico – 1.7%
	Puerto Rico Sales Tax Financing Corporation, Sales Tax Revenue Bonds, Restructured 2018A-1:
1,000	4.750%, 7/01/53	7/28 at 100.00	N/R	1,138,530
1,080	5.000%, 7/01/58	7/28 at 100.00	N/R	1,247,519
2,000	Puerto Rico Sales Tax Financing Corporation, Sales Tax Revenue Bonds, Taxable Restructured Cofina Project Series 2019A-2, 4.329%, 7/01/40	7/28 at 100.00	N/R	2,246,600
4,080	Total Puerto Rico			4,632,649

7

NXQ	Nuveen Select Tax-Free Income Portfolio 2 (continued)
	Portfolio of Investments June 30, 2021
	(Unaudited)

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	South Carolina – 0.6%
$1,500	Richland County School District 2, South Carolina, General Obligation Bonds, Refunding Series 2012B, 3.050%, 5/01/27	5/23 at 100.00	Aa1	1,569,720
	South Dakota – 0.2%
600	South Dakota Health and Educational Facilities Authority, Revenue Bonds, Sanford Health, Series 2015, 5.000%, 11/01/35	11/25 at 100.00	AA-	702,192
	Texas – 7.6%
1,880	Alamo Regional Mobility Authority, Texas, Vehicle Registration Fee Revenue Bonds, Senior Lien Series 2016, 5.000%, 6/15/46	6/25 at 100.00	AA+	2,156,492
240	Central Texas Regional Mobility Authority, Revenue Bonds, Senior Lien, Series 2015A, 5.000%, 1/01/35	7/25 at 100.00	A-	274,502
5,560	Grand Parkway Transportation Corporation, Texas, System Toll Revenue Bonds, First Tier Series 2013A, 5.500%, 4/01/53 (Pre-refunded 10/01/23)	10/23 at 100.00	A+ (5)	6,223,030
1,160	Harris County Cultural Education Facilities Finance Corporation, Texas, Revenue Bonds, Houston Methodist Hospital System, Series 2015, 5.000%, 12/01/45	6/25 at 100.00	AA	1,326,796
1,250	Harris County Flood Control District, Texas, Contract Tax Bonds, Refunding Series 2017A, 4.000%, 10/01/35	10/27 at 100.00	AAA	1,462,013
	Harris County-Houston Sports Authority, Texas, Revenue Bonds, Junior Lien Series 2001H:
110	0.000%, 11/15/24 –  NPFG Insured (ETM)	No Opt. Call	Baa2 (5)	107,801
520	0.000%, 11/15/24 –  NPFG Insured	No Opt. Call	Baa2	486,730
12,480	0.000%, 11/15/41 –  NPFG Insured	11/31 at 53.78	Baa2	4,788,950
575	Houston, Texas, Hotel Occupancy Tax and Special Revenue Bonds, Convention and Entertainment Project, Series 2001B, 0.000%, 9/01/24 –  AMBAC Insured	No Opt. Call	A	556,830
2,255	Love Field Airport Modernization Corporation, Texas, Special Facilities Revenue Bonds, Southwest Airlines Company, Series 2010, 5.250%, 11/01/40	8/21 at 100.00	Baa1	2,305,873
155	Mission Economic Development Corporation, Texas, Revenue Bonds, Natgasoline Project, Senior Lien Series 2018, 4.625%, 10/01/31, 144A (AMT)	10/21 at 105.00	BB-	164,009
1,025	North Texas Tollway Authority, System Revenue Bonds, Refunding First Tier, Series 2015B, 5.000%, 1/01/40	1/23 at 100.00	A+	1,095,479
200	Tarrant County Cultural Education Facilities Finance Corporation, Texas, Hospital Revenue Bonds, Scott & White Healthcare Project, Series 2016A, 4.000%, 11/15/42	5/26 at 100.00	AA-	222,838
27,410	Total Texas			21,171,343
	Virginia – 0.9%
	Virginia Small Business Financing Authority, Senior Lien Revenue Bonds, Elizabeth River Crossing, Opco LLC Project, Series 2012:
1,000	5.250%, 1/01/32 (AMT)	7/22 at 100.00	BBB	1,047,190
410	6.000%, 1/01/37 (AMT)	7/22 at 100.00	BBB	432,612
1,010	5.500%, 1/01/42 (AMT)	7/22 at 100.00	BBB	1,059,126
2,420	Total Virginia			2,538,928
	Washington – 5.0%
1,610	Energy Northwest, Washington, Electric Revenue Bonds, Nuclear Project 1, Refunding Series 2021-A, 4.000%, 7/01/42	7/31 at 100.00	Aa2	1,961,431

8

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Washington (continued)
$395	Port of Seattle, Washington, Revenue Bonds, Intermediate Lien Series 2019, 5.000%, 4/01/44 (AMT)	4/29 at 100.00	AA-	482,911
860	Snohomish County School District 306 Lakewood, Washington, General Obligation Bonds, Series 2014, 5.000%, 12/01/28	6/24 at 100.00	Aaa	975,842
4,000	Washington Health Care Facilities Authority, Revenue Bonds, Catholic Health Initiative, Series 2013A, 5.750%, 1/01/45 (Pre-refunded 1/01/23)	1/23 at 100.00	BBB+ (5)	4,328,560
1,500	Washington State Convention Center Public Facilities District, Lodging Tax Revenue Bonds, Series 2018, 5.000%, 7/01/58	7/28 at 100.00	Baa1	1,809,075
1,130	Washington State, General Obligation Bonds, Various Purpose Series 2015B, 5.000%, 2/01/37	2/25 at 100.00	Aaa	1,302,528
2,535	Washington State, General Obligation Bonds, Various Purpose Series 2017A, 5.000%, 8/01/38	8/26 at 100.00	Aaa	3,059,948
12,030	Total Washington			13,920,295
	Wisconsin – 2.3%
2,000	Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Gundersen Lutheran, Series 2011A, 5.250%, 10/15/39	10/21 at 100.00	AA-	2,027,920
1,645	Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Mercy Alliance, Inc, Series 2012, 5.000%, 6/01/39	6/22 at 100.00	A3	1,709,467
2,355	Wisconsin Health and Educational Facilities Authority, Wisconsin, Revenue Bonds, Medical College of Wisconsin, Inc, Series 2016, 5.000%, 12/01/41	11/26 at 100.00	AA-	2,826,283
6,000	Total Wisconsin			6,563,670
$271,785	Total Municipal Bonds (cost $234,960,881)			273,398,823

Shares	Description (1)	Value
	COMMON STOCKS – 0.4%
	Electric Utilities – 0.4%
32,258	Energy Harbor Corp (7), (8), (9)	$1,213,707
	Total Common Stocks (cost $899,914)	1,213,707
	Total Long-Term Investments (cost $235,860,795)	274,612,530

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	SHORT-TERM INVESTMENTS – 0.5%
	MUNICIPAL BONDS – 0.5%
	Florida – 0.5%
$1,345	Florida Development Finance Corporation, Florida, Surface Transportation Facility Revenue Bonds, Virgin Trains USA Passenger Rail Project, Variable Rate Demand Obligations, Series 2019A, 6.250%, 1/01/49 (AMT) (Mandatory Put 1/01/24), 144A (10)	8/21 at 103.00	N/R	$1,378,934
$1,345	Total Short-Term Investments (cost $1,345,000)			1,378,934
	Total Investments (cost $237,205,795) – 98.9%			275,991,464
	Other Assets Less Liabilities – 1.1%			3,139,414
	Net Assets Applicable to Common Shares  –  100%			$279,130,878

9

NXQ	Nuveen Select Tax-Free Income Portfolio 2 (continued)
	Portfolio of Investments June 30, 2021
	(Unaudited)

Part F of Form N-PORT was prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and in conformity with the applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) related to interim filings. Part F of Form N-PORT does not include all information and footnotes required by U.S. GAAP for complete financial statements. Certain footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted from this report pursuant to the rules of the SEC. For a full set of the Fund’s notes to financial statements, please refer to the Fund’s most recently filed annual or semi-annual report.

Fair Value Measurements

The Fund's investments in securities are recorded at their estimated fair value utilizing valuation methods approved by the Board of Directors/Trustees. Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. U.S. GAAP establishes the three-tier hierarchy which is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect management’s assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.

Level 1  –     Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.

Level 2  –     Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, credit spreads, etc.).

Level 3  –     Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).

The following table summarizes the market value of the Fund's investments as of the end of the reporting period, based on the inputs used to value them:

	Level 1	Level 2	Level 3	Total
Long-Term Investments:
Municipal Bonds	$ —	$273,398,823	$ —	$273,398,823
Common Stocks	—	1,213,707	—	1,213,707
Short-Term Investments:
Municipal Bonds	—	1,378,934	—	1,378,934
Total	$ —	$275,991,464	$ —	$275,991,464

(1)	All percentages shown in the Portfolio of Investments are based on net assets applicable to common shares unless otherwise noted.
(2)	Optional Call Provisions: Dates (month and year) and prices of the earliest optional call or redemption. There may be other call provisions at varying prices at later dates. Certain mortgage-backed securities may be subject to periodic principal paydowns.
(3)	For financial reporting purposes, the ratings disclosed are the highest of Standard & Poor’s Group (“Standard & Poor’s”), Moody’s Investors Service, Inc. (“Moody’s”) or Fitch, Inc. (“Fitch”) rating. This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Ratings below BBB by Standard & Poor’s, Baa by Moody’s or BBB by Fitch are considered to be below investment grade. Holdings designated N/R are not rated by any of these national rating agencies.
(4)	Step-up coupon bond, a bond with a coupon that increases ("steps up"), usually at regular intervals, while the bond is outstanding. The rate shown is the coupon as of the end of the reporting period.
(5)	Backed by an escrow or trust containing sufficient U.S. Government or U.S. Government agency securities, which ensure the timely payment of principal and interest.
(6)	Defaulted security. A security whose issuer has failed to fully pay principal and/or interest when due, or is under the protection of bankruptcy.
(7)	Common Stock received as part of the bankruptcy settlement during February 2020 for Ohio Water Development Authority, Pollution Control Revenue Refunding Bonds, FirstEnergy Nuclear Generating Corporation Project, Series 2005B, 0.000%, 1/01/34.
(8)	For fair value measurement disclosure purposes, investment classified as Level 2.
(9)	Non-income producing; issuer has not declared an ex-dividend date within the past twelve months.
(10)	Investment has a maturity of greater than one year, but has variable rate and/or demand features which qualify it as a short-term investment. The rate disclosed, as well as the reference rate and spread, where applicable, is that in effect as of the end of the reporting period. This rate changes periodically based on market conditions or a specified market index.
144A	Investment is exempt from registration under Rule 144A of the Securities Act of 1933, as amended. These investments may only be resold in transactions exempt from registration, which are normally those transactions with qualified institutional buyers.
AMT	Alternative Minimum Tax
ETM	Escrowed to maturity
WI/DD	Purchased on a when-issued or delayed delivery basis.

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