NPORT-EX 4 NPORT_523B_6110349966.htm
Quarterly Report
February 28, 2021
MFS®  High Yield Municipal Trust
CMU-Q1

Portfolio of Investments
2/28/21 (unaudited)
The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by jurisdiction.
Issuer     Shares/Par Value ($)
Municipal Bonds - 148.8%
Alabama - 2.9%
Birmingham, AL, Airport Authority Rev., BAM, 4%, 7/01/2040   $ 55,000 $62,734
Birmingham, AL, Special Care Facilities Financing Authority Rev. (Methodist Home for the Aging), 5.5%, 6/01/2030     85,000 89,699
Birmingham, AL, Special Care Facilities Financing Authority Rev. (Methodist Home for the Aging), 5.75%, 6/01/2035     95,000 99,449
Birmingham, AL, Special Care Facilities Financing Authority Rev. (Methodist Home for the Aging), 5.75%, 6/01/2045     130,000 133,836
Birmingham, AL, Special Care Facilities Financing Authority Rev. (Methodist Home for the Aging), 6%, 6/01/2050     135,000 140,142
Jefferson County, AL, Sewer Rev. Warrants, Capital Appreciation, Senior Lien, “B”, AGM, 0%, 10/01/2026     105,000 89,602
Jefferson County, AL, Sewer Rev. Warrants, Capital Appreciation, Senior Lien, “B”, AGM, 0%, 10/01/2029     150,000 105,025
Jefferson County, AL, Sewer Rev. Warrants, Capital Appreciation, Senior Lien, “B”, AGM, 0%, 10/01/2034     210,000 103,457
Jefferson County, AL, Sewer Rev. Warrants, Capital Appreciation, Senior Lien, “B”, AGM, 0%, 10/01/2035     400,000 184,484
Jefferson County, AL, Sewer Rev. Warrants, Subordinate Lien, “D”, 5%, 10/01/2021     75,000 77,186
Jefferson County, AL, Sewer Rev. Warrants, Subordinate Lien, “D”, 5%, 10/01/2023     115,000 129,268
Pell City, AL, Special Care Facilities Financing Authority Rev. (Noland Health Services, Inc.), 5%, 12/01/2039     175,000 179,338
Tuscaloosa County, AL, Industrial Development Authority, Gulf Opportunity Zone (Hunt Refining Project), “A”, 4.5%, 5/01/2032 (n)     500,000 555,465
Tuscaloosa County, AL, Industrial Development Authority, Gulf Opportunity Zone (Hunt Refining Project), “A”, 5.25%, 5/01/2044 (n)     1,360,000 1,545,246
University of South Alabama, Facilities Rev., “A”, BAM, 5%, 4/01/2044     245,000 295,771
University of South Alabama, Facilities Rev., “A”, BAM, 5%, 4/01/2049     150,000 179,961
        $3,970,663
Arizona - 3.2%
Arizona Industrial Development Authority Education Rev. (Academies of Math & Science), 4%, 7/01/2029 (n)   $ 25,000 $27,002
Arizona Industrial Development Authority Education Rev. (Academies of Math & Science), 5%, 7/01/2039 (n)     30,000 34,108
Arizona Industrial Development Authority Education Rev. (Academies of Math & Science), 5%, 7/01/2049 (n)     50,000 55,913
Arizona Industrial Development Authority Education Rev. (Academies of Math & Science), 5%, 7/01/2054 (n)     70,000 77,955
Arizona Industrial Development Authority Education Rev. (Academies of Math & Science), “A”, 5%, 7/01/2038     15,000 17,622
Arizona Industrial Development Authority Education Rev. (Academies of Math & Science), “A”, 5%, 7/01/2048     45,000 51,874
Arizona Industrial Development Authority Education Rev. (Academies of Math & Science), “A”, 5%, 7/01/2052     55,000 63,282
Arizona Industrial Development Authority Education Rev. (Academies of Math & Science), “B”, 5.5%, 7/01/2038 (n)     45,000 51,155
Arizona Industrial Development Authority Education Rev. (Academies of Math & Science), “B”, 5.625%, 7/01/2048 (n)     90,000 101,674
Arizona Industrial Development Authority Education Rev. (Academies of Math & Science), “B”, 5.75%, 7/01/2053 (n)     135,000 153,018
Arizona Industrial Development Authority Education Rev. (Basis Schools Projects), “D”, 5%, 7/01/2037 (n)     25,000 28,231
Arizona Industrial Development Authority Education Rev. (Basis Schools Projects), “D”, 5%, 7/01/2047 (n)     30,000 33,307
Arizona Industrial Development Authority Education Rev. (Basis Schools Projects), “D”, 5%, 7/01/2051 (n)     85,000 94,164
Arizona Industrial Development Authority Education Rev. (Somerset Academy of Las Vegas - Lone Mountain Campus), “A”, 3.75%, 12/15/2029 (n)     15,000 15,781
Arizona Industrial Development Authority Education Rev. (Somerset Academy of Las Vegas - Lone Mountain Campus), “A”, 5%, 12/15/2039 (n)     15,000 16,302
Arizona Industrial Development Authority Education Rev. (Somerset Academy of Las Vegas - Lone Mountain Campus), “A”, 5%, 12/15/2049 (n)     25,000 26,858
Arizona Industrial Development Authority Senior Living Rev. (Great Lakes Senior Living Facilities LLC, First Tier), “A”, 5%, 1/01/2043     125,000 116,502
Arizona Industrial Development Authority Senior Living Rev. (Great Lakes Senior Living Facilities LLC, First Tier), “A”, 5%, 1/01/2054     205,000 183,508
Glendale, AZ, Industrial Development Authority Refunding Rev. (Terraces of Phoenix Project), “A”, 5%, 7/01/2048     55,000 57,080
Glendale, AZ, Industrial Development Authority, Senior Living Rev. (Royal Oaks - Inspirata Pointe Project), “A”, 5%, 5/15/2056     245,000 272,602
Phoenix, AZ, Industrial Development Authority Rev. (Guam Facilities Foundation, Inc.), 5.125%, 2/01/2034     345,000 356,016
Phoenix, AZ, Industrial Development Authority Rev. (Guam Facilities Foundation, Inc.), 5.375%, 2/01/2041     220,000 227,999
Phoenix, AZ, Industrial Development Authority, Education Facility Rev. (Basis Schools Projects), “A”, 5%, 7/01/2035 (n)     100,000 109,423
Phoenix, AZ, Industrial Development Authority, Education Facility Rev. (Basis Schools Projects), “A”, 5%, 7/01/2035 (n)     35,000 38,298
Phoenix, AZ, Industrial Development Authority, Education Facility Rev. (Basis Schools Projects), “A”, 5%, 7/01/2045 (n)     165,000 177,954
Phoenix, AZ, Industrial Development Authority, Education Facility Rev. (Basis Schools Projects), “A”, 5%, 7/01/2046 (n)     90,000 97,027
Phoenix, AZ, Industrial Development Authority, Education Facility Rev. (Great Hearts Academies Project), “A”, 5%, 7/01/2034     350,000 379,197
Phoenix, AZ, Industrial Development Authority, Education Facility Rev. (Great Hearts Academies Project), “A”, 5%, 7/01/2044     220,000 235,435
1

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Arizona - continued
Phoenix, AZ, Industrial Development Authority, Education Facility Rev. (Legacy Traditional Schools Project), 6.5%, 7/01/2034 (n)   $ 115,000 $132,958
Phoenix, AZ, Industrial Development Authority, Education Facility Rev. (Legacy Traditional Schools Project), 5%, 7/01/2035 (n)     155,000 166,972
Phoenix, AZ, Industrial Development Authority, Education Facility Rev. (Legacy Traditional Schools Project), 6.75%, 7/01/2044 (n)     180,000 207,315
Phoenix, AZ, Industrial Development Authority, Education Facility Rev. (Legacy Traditional Schools Project), 5%, 7/01/2045 (n)     170,000 180,367
Phoenix, AZ, Industrial Development Authority, Student Housing Refunding Rev. (Downtown Phoenix Student Housing LLC-Arizona State University Project), “A”, 5%, 7/01/2042     80,000 89,338
Pima County, AZ, Industrial Development Authority Education Facility Rev. (American Leadership Academy Project), 4.75%, 6/15/2037 (n)     150,000 152,443
Tempe, AZ, Industrial Development Authority Rev. (Friendship Village), “A”, 6%, 12/01/2032     60,000 61,120
Tempe, AZ, Industrial Development Authority Rev. (Friendship Village), “A”, 6.25%, 12/01/2042     180,000 183,125
Tempe, AZ, Industrial Development Authority Rev. (Friendship Village), “A”, 6.25%, 12/01/2046     70,000 71,163
        $4,344,088
Arkansas - 1.0%
Arkansas Development Finance Authority, Charter School Capital Improvement Rev. (LISA Academy Project), 4%, 7/01/2028   $ 30,000 $30,950
Arkansas Development Finance Authority, Charter School Capital Improvement Rev. (LISA Academy Project), 4.5%, 7/01/2033     60,000 62,064
Arkansas Development Finance Authority, Charter School Capital Improvement Rev. (LISA Academy Project), 4.5%, 7/01/2039     10,000 10,290
Arkansas Development Finance Authority, Health Care Rev. (Baptist Memorial Health Care Corp.), “B-1”, 5%, 9/01/2044     200,000 242,490
Arkansas Development Finance Authority, Hospital Rev. (Washington Regional Medical Center), “A”, 5%, 2/01/2035     30,000 33,193
Arkansas Development Finance Authority, Hospital Rev. (Washington Regional Medical Center), “C”, 5%, 2/01/2033     50,000 55,509
Arkansas Development Finance Authority, Tobacco Settlement Rev. (Cancer Research Center Project), Capital Appreciation, AAC, 0%, 7/01/2046     485,000 213,424
Pulaski County, AR, Public Facilities Board, Healthcare Rev. (Baptist Health), 5%, 12/01/2039     505,000 585,371
Pulaski County, AR, Public Facilities Board, Healthcare Rev. (Baptist Health), 5%, 12/01/2042     125,000 137,026
        $1,370,317
California - 12.0%
Beverly Hills, CA, Unified School District (Election of 2008), Capital Appreciation, 0%, 8/01/2029   $ 2,195,000 $1,947,492
Beverly Hills, CA, Unified School District (Election of 2008), Capital Appreciation, 0%, 8/01/2031     275,000 230,593
Beverly Hills, CA, Unified School District (Election of 2008), Capital Appreciation, 0%, 8/01/2032     280,000 228,340
Beverly Hills, CA, Unified School District (Election of 2008), Capital Appreciation, 0%, 8/01/2033     560,000 443,699
California County Tobacco Securitization Agency Settlement (Los Angeles County Securitization Corp.), “A”, 4%, 6/01/2040     40,000 47,007
California Department of Water Resources, Center Valley Project Rev., “AJ”, 5%, 12/01/2035 (Prerefunded 12/01/2021)     1,010,000 1,046,875
California Educational Facilities Authority Rev. (Chapman University), 5%, 4/01/2031     145,000 145,426
California M-S-R Energy Authority Gas Rev., “A”, 7%, 11/01/2034     155,000 238,328
California Municipal Finance Authority Rev. (Community Medical Centers), “A”, 5%, 2/01/2042     85,000 97,380
California Municipal Finance Authority Rev. (NorthBay Healthcare Group), 5%, 11/01/2035     35,000 38,088
California Municipal Finance Authority Rev. (NorthBay Healthcare Group), “A”, 5.25%, 11/01/2036     85,000 97,677
California Municipal Finance Authority Rev. (NorthBay Healthcare Group), “A”, 5.25%, 11/01/2041     80,000 91,028
California Municipal Finance Authority Rev. (NorthBay Healthcare Group), “A”, 5.25%, 11/01/2047     15,000 16,935
California Municipal Finance Authority Rev. (William Jessup University), 5%, 8/01/2039     145,000 158,518
California Municipal Finance Authority, Charter School Lease Rev. (Palmdale Aerospace Academy Project), “A”, 3.875%, 7/01/2028 (n)     100,000 105,551
California Municipal Finance Authority, Charter School Lease Rev. (Palmdale Aerospace Academy Project), “A”, 5%, 7/01/2049 (n)     100,000 110,916
California Pollution Control Financing Authority, Solid Waste Disposal Rev. (CalPlant I Project), 8%, 7/01/2039 (a)(d)(z)     385,000 250,250
California Pollution Control Financing Authority, Solid Waste Disposal Subordinate Rev. (CalPlant I Project), 7.5%, 12/01/2039 (a)(d)     500,000 152,500
California Public Works Board Lease Rev., Department of Corrections and Rehabilitation (Various Correctional Facilities), “A”, 5%, 9/01/2033     1,025,000 1,176,618
California School Finance Authority, School Facility Rev. (Alliance for College-Ready Public Schools Projects), “A”, 5%, 7/01/2030 (n)     35,000 40,000
California School Finance Authority, School Facility Rev. (Alliance for College-Ready Public Schools Projects), “A”, 5%, 7/01/2045 (n)     100,000 111,623
California School Finance Authority, School Facility Rev. (ICEF View Park Elementary and Middle Schools), “A”, 5.875%, 10/01/2044     115,000 125,284
California Statewide Communities Development Authority Rev. (899 Charleston Project), “A”, 5.25%, 11/01/2044 (n)     40,000 41,273
California Statewide Communities Development Authority Rev. (899 Charleston Project), “A”, 5.375%, 11/01/2049 (n)     55,000 56,944
2

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
California - continued
California Statewide Communities Development Authority Rev. (California Baptist University), “A”, 6.125%, 11/01/2033   $ 100,000 $110,756
California Statewide Communities Development Authority Rev. (California Baptist University), “A”, 5%, 11/01/2041 (n)     100,000 113,286
California Statewide Communities Development Authority Rev. (Lancer Plaza Project), 5.625%, 11/01/2033     110,000 118,773
California Statewide Communities Development Authority Rev. (Loma Linda University Medical Center), “A”, 5.25%, 12/01/2034     195,000 217,439
California Statewide Communities Development Authority Rev. (Loma Linda University Medical Center), “A”, 5.25%, 12/01/2044     390,000 428,165
California Statewide Communities Development Authority Rev. (Loma Linda University Medical Center), “A”, 5%, 12/01/2046 (n)     295,000 328,193
California Statewide Communities Development Authority Rev. (Loma Linda University Medical Center), “A”, 5.25%, 12/01/2056 (n)     230,000 257,342
California Statewide Communities Development Authority, College Housing Rev. (NCCD-Hooper Street LLC College of the Arts Project), 5.25%, 7/01/2049 (n)     145,000 156,871
CSCDA Community Improvement Authority, California Essential Housing Rev. (Renaissance at City Center), “A”, 5%, 7/01/2051 (n)     100,909 117,840
Downey, CA, Unified School District (Election of 2014), “B”, 4%, 8/01/2041     1,585,000 1,828,076
Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., “A”, 3.5%, 6/01/2036     95,000 96,772
Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., “A”, 5.25%, 6/01/2047     140,000 145,237
Hastings Campus Housing Finance Authority Rev., “A”, 5%, 7/01/2061 (n)     465,000 522,060
Hastings Campus Housing Finance Authority Rev., Convertible Capital Appreciation, “B”, 0% to 7/01/2035, 6.75% to 7/01/2061 (n)     470,000 247,074
Hawthorne, CA, School District (Election of 2018), “A”, BAM, 4%, 8/01/2047     710,000 805,729
Jurupa, CA, Public Financing Authority, Special Tax Rev., “A”, 5%, 9/01/2042     170,000 190,157
La Verne, CA, Brethren Hillcrest Homes, COP, 5%, 5/15/2036 (Prerefunded 5/15/2022)     50,000 53,381
Long Beach, CA, Marina Rev. (Alamitos Bay Marina Project), 5%, 5/15/2035     30,000 33,465
Los Angeles County, CA, Regional Financing Authority Rev. (Montecedro, Inc. Project), “A”, CALHF, 5%, 11/15/2034     35,000 37,264
Los Angeles County, CA, Regional Financing Authority Rev. (Montecedro, Inc. Project), “A”, CALHF, 5%, 11/15/2044     65,000 68,815
Morongo Band of Mission Indians California Rev., “B”, 5%, 10/01/2042 (n)     150,000 170,857
San Francisco, CA, City & County Airports Commission, International Airport Rev., “A”, 5%, 1/01/2047     200,000 237,744
San Francisco, CA, City & County Redevelopment Successor Agency, Tax Allocation (Mission Bay South Redevelopment Project), “A”, 5%, 8/01/2043     25,000 27,641
State of California, 5.25%, 10/01/2028     335,000 344,869
State of California, 5.25%, 9/01/2030     790,000 809,940
Transbay Joint Powers Authority, CA, Senior Tax Allocation, “A”, 5%, 10/01/2049     75,000 91,051
Whittier, CA, Health Facility Rev. (PIH Health), 5%, 6/01/2044     335,000 372,413
Yorba Linda, CA, Redevelopment Agency, Tax Allocation Rev., Capital Appreciation, “A”, NPFG, 0%, 9/01/2024     1,325,000 1,276,015
        $16,205,570
Colorado - 5.2%
Arvada, CO, Vauxmont Metropolitan District Rev., AGM, 5%, 12/15/2030   $ 14,000 $16,065
Arvada, CO, Vauxmont Metropolitan District Rev., AGM, 5%, 12/01/2050     61,000 72,774
Colorado Educational & Cultural Facilities Authority Rev. (Classical Academy Project), 5%, 12/01/2031     65,000 72,950
Colorado Educational & Cultural Facilities Authority Rev. (Classical Academy Project), “A”, 5%, 12/01/2038     75,000 83,189
Colorado Educational & Cultural Facilities Authority Rev. (Peak to Peak Charter School Project), 5%, 8/15/2030     40,000 44,848
Colorado Educational & Cultural Facilities Authority Rev. (Peak to Peak Charter School Project), 5%, 8/15/2034     35,000 38,940
Colorado Educational & Cultural Facilities Authority, Charter School Refunding and Improvement Rev. (American Academy Project), 5%, 12/01/2055     950,000 1,142,898
Colorado Educational & Cultural Facilities Authority, Charter School Refunding and Improvement Rev. (Prospect Ridge Academy Project), “A”, 5%, 3/15/2055     455,000 548,621
Colorado Health Facilities Authority Rev. (American Baptist Homes), 8%, 8/01/2043     375,000 400,523
Colorado Health Facilities Authority Rev. (CommonSpirit Health), “A-2”, 4%, 8/01/2044     140,000 155,256
Colorado Health Facilities Authority Rev. (Evangelical Lutheran Good Samaritan Society), 5.625%, 6/01/2043 (Prerefunded 6/01/2023)     100,000 111,941
Colorado Health Facilities Authority, Hospital Rev. (AdventHealth Obligated Group), “A”, 4%, 11/15/2038     2,360,000 2,730,921
Denver, CO, Broadway Station Metropolitan District No. 2, “A”, 5.125%, 12/01/2048     500,000 539,560
Denver, CO, Convention Center Hotel Authority Rev., 5%, 12/01/2035     60,000 68,362
Denver, CO, Convention Center Hotel Authority Rev., 5%, 12/01/2036     40,000 45,458
Denver, CO, Convention Center Hotel Authority Rev., 5%, 12/01/2040     105,000 118,298
Denver, CO, Health & Hospital Authority Rev. (550 Acoma, Inc.), COP, 5%, 12/01/2048     75,000 88,508
Denver, CO, Health & Hospital Authority Rev., “A”, 4%, 12/01/2040     205,000 231,742
3

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Colorado - continued
Denver, CO, Health & Hospital Authority Rev., “A”, 5.25%, 12/01/2045   $ 100,000 $107,948
Park Creek Metropolitan District, CO, Senior Limited Property Tax Supported Rev., “A”, NPFG, 5%, 12/01/2045     370,000 421,278
        $7,040,080
Connecticut - 0.8%
Connecticut Health & Educational Facilities Authority Rev. (Griffin Hospital), “G-1”, 5%, 7/01/2050 (n)   $ 120,000 $132,227
Hartford County, CT, Metropolitan District, “C”, AGM, 5%, 11/01/2030     185,000 222,973
Hartford County, CT, Metropolitan District, “C”, AGM, 5%, 11/01/2031     160,000 192,259
Mohegan Tribal Finance Authority, CT, Economic Development Bonds, 7%, 2/01/2045 (n)     540,000 540,238
        $1,087,697
Delaware - 0.6%
Delaware Economic Development Authority Rev. (Delaware Military Academy, Inc. Project), 4.625%, 9/01/2034   $ 95,000 $108,285
Delaware Economic Development Authority Rev. (Delaware Military Academy, Inc. Project), 5%, 9/01/2044     95,000 109,516
Delaware Economic Development Authority Rev. (Delaware Military Academy, Inc. Project), 5%, 9/01/2049     110,000 126,808
Delaware Health Facilities Authority Rev. (Beebe Medical Center Project), 5%, 6/01/2043     185,000 215,965
Delaware Health Facilities Authority Rev. (Beebe Medical Center Project), 5%, 6/01/2048     90,000 104,739
Kent County, DE, Student Housing and Dining Facility Rev. (CHF-Dover LLC-Delaware State University Project), “A”, 5%, 7/01/2058     175,000 188,393
        $853,706
District of Columbia - 1.6%
District of Columbia Rev. (Rocketship D.C.), “A”, 5%, 6/01/2056 (n)   $ 250,000 $271,890
District of Columbia Student Dormitory Rev. (Provident Group - Howard Properties LLC), 5%, 10/01/2030     145,000 145,125
District of Columbia Student Dormitory Rev. (Provident Group - Howard Properties LLC), 5%, 10/01/2035     670,000 666,543
District of Columbia Student Dormitory Rev. (Provident Group - Howard Properties LLC), 5%, 10/01/2045     775,000 763,111
Metropolitan Washington, D.C., Airport Authority, Toll Road Subordinate Lien Refunding Rev. (Dulles Metrorail and Capital Improvement Project), “B”, AGM, 4%, 10/01/2053     255,000 284,511
        $2,131,180
Florida - 7.7%
Arborwood Community Development District, FL, Capital Improvement Refunding Rev. (Subordinate Lien), “A-2”, 5%, 5/01/2036   $ 105,000 $114,371
Bellalago, FL, Educational Facilities Benefit District Capital Improvement Refunding Rev., 4.375%, 5/01/2030     85,000 93,932
Bellalago, FL, Educational Facilities Benefit District Capital Improvement Refunding Rev., 4.5%, 5/01/2033     40,000 44,257
Bellalago, FL, Educational Facilities Benefit District Capital Improvement Refunding Rev., 4.6%, 5/01/2034     60,000 66,446
Capital Region Community Development District, FL, Capital Improvement Rev., “A-1”, 5.125%, 5/01/2039     150,000 160,559
Collier County, FL, Educational Facilities Authority Rev. (Ave Maria University, Inc. Project), “A”, 6.125%, 6/01/2043     340,000 362,294
Collier County, FL, Industrial Development Authority, Continuing Care Community Rev. (Arlington of Naples Project), “A”, 8.125%, 5/15/2044 (a)(d)(z)     485,000 295,850
Collier County, FL, Industrial Development Authority, Continuing Care Community Rev. (Arlington of Naples Project), “A”, 6.5%, 5/15/2049 (a)(d)(z)     100,000 61,000
Daytona Beach, FL, Halifax Hospital Medical Center Rev., 5%, 6/01/2035     135,000 150,912
Daytona Beach, FL, Halifax Hospital Medical Center Rev., 5%, 6/01/2046     185,000 203,230
Florida Capital Trust Agency, Educational Facilities Rev. (Florida Charter Educational Foundation, Inc. Project), “A”, 5.375%, 6/15/2048 (n)     110,000 120,052
Florida Capital Trust Agency, Educational Facilities Rev. (Renaissance Charter School, Inc. Project), “A”, 5%, 6/15/2039 (n)     125,000 135,035
Florida Capital Trust Agency, Educational Facilities Rev. (Renaissance Charter School, Inc. Project), “A”, 5%, 6/15/2049 (n)     475,000 507,386
Florida Development Finance Corp. Educational Facilities Rev. (Florida Charter Educational Foundation, Inc. Project), “A”, 6.375%, 6/15/2046 (n)     145,000 166,760
Florida Development Finance Corp. Educational Facilities Rev. (Renaissance Charter School), “A”, 6%, 6/15/2032 (n)     115,000 119,507
Florida Development Finance Corp. Educational Facilities Rev. (Renaissance Charter School), “A”, 6.125%, 6/15/2043 (n)     240,000 248,208
Florida Development Finance Corp. Educational Facilities Rev. (Renaissance Charter School), “A”, 8.5%, 6/15/2044     445,000 499,192
Florida Development Finance Corp. Educational Facilities Rev. (River City Science Academy Projects), “A”, 4%, 7/01/2055     30,000 31,595
Florida Development Finance Corp. Educational Facilities Rev. (Southwest Charter Foundation, Inc. Project), “A”, 6%, 6/15/2037 (n)     100,000 106,660
Florida Development Finance Corp. Educational Facilities Rev. (Southwest Charter Foundation, Inc. Project), “A”, 6.125%, 6/15/2047 (n)     155,000 163,694
4

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Florida - continued
Florida Higher Educational Facilities Financing Authority Rev. (Jacksonville University Project), “A”, 4.5%, 6/01/2033 (n)   $ 100,000 $113,143
Florida Higher Educational Facilities Financing Authority Rev. (Jacksonville University Project), “A”, 5%, 6/01/2048 (n)     110,000 124,112
Homestead, FL, Community Development District, Special Assessment, “A”, 6%, 5/01/2037     365,000 302,724
Jacksonville, FL, Educational Facilities Rev. (Jacksonville University Project), “B”, 5%, 6/01/2053 (n)     135,000 151,809
Lakewood Ranch Stewardship District, FL, Special Assessment Rev. (Lakewood Centre North Project), 4.875%, 5/01/2035     100,000 106,708
Lakewood Ranch Stewardship District, FL, Special Assessment Rev. (Lakewood Centre North Project), 4.875%, 5/01/2045     145,000 153,239
Lakewood Ranch Stewardship District, FL, Special Assessment Rev. (Lakewood National and Polo Run Projects), 5.375%, 5/01/2047     135,000 148,840
Marshall Creek, FL, Community Development District Rev. (St. John's County), “A”, 5%, 5/01/2032     80,000 84,301
Martin County, FL, Health Facilities Authority Hospital Rev. (Cleveland Clinic Health System), “A”, 4%, 1/01/2046     220,000 249,011
Miami-Dade County, FL, Aviation Rev., “A”, 4%, 10/01/2040     355,000 411,413
Miami-Dade County, FL, Industrial Development Authority Rev. (Pinecrest Academy Project), 5.25%, 9/15/2044     195,000 210,036
Mid-Bay Bridge Authority Rev., FL, Springing Lien, “A”, 7.25%, 10/01/2040 (Prerefunded 10/01/2021)     445,000 463,298
Midtown Miami, FL, Community Development District Special Assessment (Infrastructure Project), “B”, 5%, 5/01/2029     175,000 183,124
North Broward, FL, Hospital District Rev. (Broward Health), “B”, 5%, 1/01/2042     380,000 442,328
Orlando, FL, Senior Tourist Development Tax Refunding Rev. (6th Cent Contract Payments), “A”, AGM, 5%, 11/01/2034     25,000 30,688
Osceola County, FL, Transportation Improvement and Refunding Rev. (Osceola Parkway), “A-1”, 5%, 10/01/2049     85,000 102,491
Osceola County, FL, Transportation Improvement and Refunding Rev. (Osceola Parkway), Capital Appreciation, “A-2”, 0%, 10/01/2037     155,000 92,806
Osceola County, FL, Transportation Improvement and Refunding Rev. (Osceola Parkway), Capital Appreciation, “A-2”, 0%, 10/01/2042     255,000 124,284
Palm Beach County, FL, Health Facilities Authority Rev. (Sinai Residences of Boca Raton Project), 7.5%, 6/01/2049     115,000 124,122
Pasco County, FL, Bexley Community Development District, Special Assessment Rev., 4.7%, 5/01/2036     100,000 105,233
Pasco County, FL, Bexley Community Development District, Special Assessment Rev., 4.875%, 5/01/2047     145,000 152,240
Pasco County, FL, Del Webb Bexley Community Development District, Special Assessment Rev., 5.4%, 5/01/2049     100,000 109,700
Pasco County, FL, Estancia at Wiregrass Community Development District, Capital Improvement, 7%, 11/01/2045     105,000 125,983
Pasco County, FL, Estancia at Wiregrass Community Development District, Capital Improvement, 5.375%, 11/01/2046     90,000 95,639
Sarasota County, FL, Health Facility Authority Retirement Facility Improvement Rev. (Village on the Isle Project), “A”, 5%, 1/01/2047     55,000 58,744
Sarasota County, FL, Health Facility Authority Retirement Facility Improvement Rev. (Village on the Isle Project), “A”, 5%, 1/01/2052     100,000 106,667
Sumter County, FL, Industrial Development Authority Hospital Rev. (Central Florida Health Alliance Projects), “A”, 5%, 7/01/2026     20,000 22,076
Sumter County, FL, Industrial Development Authority Hospital Rev. (Central Florida Health Alliance Projects), “A”, 5%, 7/01/2029     20,000 21,841
Sumter County, FL, Industrial Development Authority Hospital Rev. (Central Florida Health Alliance Projects), “A”, 5.125%, 7/01/2034     40,000 43,527
Sumter County, FL, Industrial Development Authority Hospital Rev. (Central Florida Health Alliance Projects), “A”, 5.25%, 7/01/2044     125,000 135,014
Tallahassee, FL, Health Facilities Rev. (Tallahassee Memorial Healthcare, Inc.), “A”, 5%, 12/01/2040     335,000 371,652
Tallahassee, FL, Health Facilities Rev. (Tallahassee Memorial Healthcare, Inc.), “A”, 5%, 12/01/2044     130,000 143,086
Tampa, FL (University of Tampa Project), 5%, 4/01/2040     80,000 89,141
Tampa, FL, Capital Improvement Cigarette Tax Allocation (H. Lee Moffitt Cancer Center Project), Capital Appreciation, “A”, 0%, 9/01/2045     1,385,000 573,542
Tampa, FL, Hospital Rev. (H. Lee Moffitt Cancer Center Project), “B”, 5%, 7/01/2050     250,000 306,988
Trout Creek Community Development District, FL, Capital Improvement Rev., 5.5%, 5/01/2035     170,000 181,631
Trout Creek Community Development District, FL, Capital Improvement Rev., 5.625%, 5/01/2045     305,000 325,023
Westridge, FL, Community Development District, Capital Improvement Rev., 5.8%, 5/01/2037     105,000 105,057
        $10,342,201
Georgia - 2.0%
Clayton County, GA, Development Authority, Special Facilities Rev. (Delta Airlines, Inc.), “A”, 8.75%, 6/01/2029   $ 186,674 $187,676
Cobb County, GA, Development Authority, Student Housing Rev. (Kennesaw State University Real Estate Foundations), “C”, 5%, 7/15/2030     45,000 49,785
Cobb County, GA, Development Authority, Student Housing Rev. (Kennesaw State University Real Estate Foundations), “C”, 5%, 7/15/2033     80,000 87,671
Cobb County, GA, Development Authority, Student Housing Rev. (Kennesaw State University Real Estate Foundations), “C”, 5%, 7/15/2038     90,000 97,817
Cobb County, GA, Kennestone Hospital Authority Rev. (WellStar Health System, Inc. Project), “B”, 4%, 4/01/2039     60,000 69,352
Cobb County, GA, Kennestone Hospital Authority Rev. (WellStar Health System, Inc. Project), “B”, 5%, 4/01/2040     5,000 6,242
5

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Georgia - continued
Fulton County, GA, Development Authority Hospital Rev. (WellStar Health System, Inc. Project), “A”, 4%, 4/01/2050   $ 180,000 $203,008
Georgia Main Street Natural Gas, Inc., Gas Project Rev., “A”, 5.5%, 9/15/2028     335,000 430,174
Georgia Main Street Natural Gas, Inc., Gas Project Rev., “A”, 5%, 5/15/2043     110,000 130,288
Georgia Municipal Electric Authority (Plant Vogtle Units 3 & 4 Project), “A”, 5%, 1/01/2056     100,000 117,556
Georgia Municipal Electric Authority (Plant Vogtle Units 3 & 4 Project), “A”, 5%, 1/01/2063     95,000 111,388
Private Colleges & Universities, GA, Authority Rev. (Emory University), “B”, 4%, 9/01/2038     255,000 303,458
Private Colleges & Universities, GA, Authority Rev. (Emory University), “B”, 4%, 9/01/2039     200,000 237,346
Private Colleges & Universities, GA, Authority Rev. (Emory University), “B”, 4%, 9/01/2040     200,000 236,686
Private Colleges & Universities, GA, Authority Rev. (Emory University), “B”, 4%, 9/01/2041     405,000 477,560
        $2,746,007
Guam - 0.2%
Guam Waterworks Authority Rev. (Water and Wastewater System), “A”, 5%, 1/01/2050   $ 250,000 $300,555
Hawaii - 0.3%
Hawaii Department of Budget & Finance, Special Purpose Rev. (Chaminade University), 5%, 1/01/2030 (n)   $ 115,000 $118,958
Hawaii Department of Budget & Finance, Special Purpose Rev. (Chaminade University), 5%, 1/01/2045 (n)     110,000 111,090
Hawaii Harbor System Rev., “A”, 4%, 7/01/2036     50,000 58,153
State of Hawaii, “DZ”, 5%, 12/01/2031 (Prerefunded 12/01/2021)     75,000 77,727
        $365,928
Idaho - 0.3%
Idaho Health Facilities Authority Rev. (Madison Memorial Hospital Project), 5%, 9/01/2037   $ 40,000 $44,234
Idaho Health Facilities Authority Rev. (St. Luke's Health System Project), “A”, 4%, 3/01/2038     180,000 200,266
Idaho Housing and Finance Association Nonprofit Facilities Rev. (Compass Public Charter School, Inc. Project), “A”, 6%, 7/01/2049 (n)     100,000 116,881
        $361,381
Illinois - 17.6%
Bolingbrook, IL, Sales Tax Rev., 6.25%, 1/01/2024   $ 247,900 $236,380
Bridgeview, IL, Stadium and Redevelopment Projects, AAC, 5.14%, 12/01/2036     530,000 519,326
Chicago, IL, Board of Education, 5%, 12/01/2042     125,000 130,616
Chicago, IL, Board of Education (School Reform), “A”, NPFG, 5.25%, 12/01/2023     495,000 538,451
Chicago, IL, Board of Education (School Reform), Capital Appreciation, “B-1”, NPFG, 0%, 12/01/2028     250,000 211,935
Chicago, IL, Board of Education, Dedicated Capital Improvement Tax Bond, 5%, 4/01/2046     200,000 226,110
Chicago, IL, Board of Education, Dedicated Capital Improvement Tax Bond, 6%, 4/01/2046     975,000 1,162,736
Chicago, IL, Board of Education, Unlimited Tax General Obligation Dedicated Rev., “A”, AAC, 5.5%, 12/01/2025     125,000 149,665
Chicago, IL, Board of Education, Unlimited Tax General Obligation Dedicated Rev., “A”, AAC, 5.5%, 12/01/2026     50,000 61,572
Chicago, IL, Board of Education, Unlimited Tax General Obligation Dedicated Rev., “A”, AAC, 5.5%, 12/01/2027     120,000 151,122
Chicago, IL, Board of Education, Unlimited Tax General Obligation Dedicated Rev., “A”, AAC, 5.5%, 12/01/2028     55,000 70,553
Chicago, IL, Board of Education, Unlimited Tax General Obligation Dedicated Rev., “A”, AAC, 5.5%, 12/01/2029     40,000 52,116
Chicago, IL, Board of Education, Unlimited Tax General Obligation Dedicated Rev., “A”, AAC, 5.5%, 12/01/2030     30,000 39,781
Chicago, IL, Board of Education, Unlimited Tax General Obligation Dedicated Rev., “A”, AAC, 5.5%, 12/01/2031     80,000 107,856
Chicago, IL, Board of Education, Unlimited Tax General Obligation Dedicated Rev., “C”, AGM, 5%, 12/01/2030     170,000 211,087
Chicago, IL, Board of Education, Unlimited Tax General Obligation Dedicated Rev., “C”, AGM, 5%, 12/01/2031     325,000 400,358
Chicago, IL, Board of Education, Unlimited Tax General Obligation Dedicated Rev., “C”, AGM, 5%, 12/01/2032     275,000 336,245
Chicago, IL, Board of Education, Unlimited Tax General Obligation Refunding Dedicated Rev., “A”, 7%, 12/01/2046 (n)     310,000 393,675
Chicago, IL, Board of Education, Unlimited Tax General Obligation Refunding Dedicated Rev., “A”, AGM, 5%, 12/01/2029     110,000 137,784
Chicago, IL, Board of Education, Unlimited Tax General Obligation Refunding Dedicated Rev., “A”, AGM, 5%, 12/01/2035     110,000 132,784
Chicago, IL, Board of Education, Unlimited Tax General Obligation Refunding Dedicated Rev., “G”, 5%, 12/01/2034     260,000 303,137
Chicago, IL, Board of Education, Unlimited Tax General Obligation Refunding Dedicated Rev., “H”, 5%, 12/01/2036     385,000 446,581
Chicago, IL, Board of Education, Unlimited Tax General Obligation Refunding Dedicated Rev., “H”, 5%, 12/01/2046     250,000 284,252
Chicago, IL, General Obligation, “A”, 5%, 1/01/2025     35,000 39,473
Chicago, IL, General Obligation, “A”, 5%, 1/01/2026     170,000 195,651
Chicago, IL, General Obligation, “A”, 5%, 1/01/2027     115,000 134,932
Chicago, IL, General Obligation, “A”, 5%, 1/01/2028     25,000 29,734
6

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Illinois - continued
Chicago, IL, General Obligation, “A”, 5.25%, 1/01/2028   $ 30,000 $32,775
Chicago, IL, General Obligation, “A”, 5%, 1/01/2029     315,000 379,307
Chicago, IL, General Obligation, “A”, 5%, 1/01/2031     40,000 48,346
Chicago, IL, General Obligation, “A”, 5%, 1/01/2035     50,000 53,477
Chicago, IL, General Obligation, “A”, 5%, 1/01/2036     105,000 112,167
Chicago, IL, General Obligation, “A”, 5%, 1/01/2039     105,000 120,494
Chicago, IL, General Obligation, “A”, 5%, 1/01/2040     20,000 22,908
Chicago, IL, General Obligation, “A”, 5%, 1/01/2044     385,000 436,166
Chicago, IL, General Obligation, “A”, 5.5%, 1/01/2049     405,000 469,828
Chicago, IL, General Obligation, “D”, 5.5%, 1/01/2033     85,000 94,451
Chicago, IL, O’Hare International Airport Rev., Special Facilities, 5%, 7/01/2033     350,000 420,217
Chicago, IL, O’Hare International Airport Rev., Special Facilities, 5%, 7/01/2038     295,000 347,867
Chicago, IL, O’Hare International Airport Rev., Special Facilities, 5%, 7/01/2048     250,000 289,285
Chicago, IL, O'Hare International Airport Rev., Customer Facility Charge, AGM, 5.25%, 1/01/2032     80,000 86,454
Chicago, IL, O'Hare International Airport Rev., Customer Facility Charge, AGM, 5.25%, 1/01/2033     40,000 43,204
Chicago, IL, O'Hare International Airport Rev., Customer Facility Charge, AGM, 5.5%, 1/01/2043     155,000 167,910
Chicago, IL, O'Hare International Airport Rev., Senior Lien, “A”, 5%, 1/01/2048     200,000 234,992
Chicago, IL, O'Hare International Airport Rev., Senior Lien, “A”, 5%, 1/01/2053     115,000 134,651
Chicago, IL, Transit Authority Sales Tax Receipts Rev., 5.25%, 12/01/2029 (Prerefunded 12/01/2021)     165,000 171,306
Chicago, IL, Transit Authority Sales Tax Receipts Rev., 5.25%, 12/01/2030 (Prerefunded 12/01/2021)     330,000 342,613
Chicago, IL, Transit Authority Sales Tax Receipts Rev., 5.25%, 12/01/2031 (Prerefunded 12/01/2021)     60,000 62,293
Chicago, IL, Transit Authority Second Lien Sales Tax Rev., “A”, 5%, 12/01/2045     380,000 461,571
Cook County, IL, Community College District No. 508 (City Colleges), BAM, 5%, 12/01/2047     450,000 521,770
Cook County, IL, General Obligation Refunding, 5%, 11/15/2034     40,000 49,472
Cook County, IL, General Obligation Refunding, 5%, 11/15/2035     140,000 173,153
Cook County, IL, Sales Tax Rev., “A”, 4%, 11/15/2041     370,000 428,349
Du Page County, IL, Special Service Area No. 31 Special Tax (Monarch Landing Project), 5.625%, 3/01/2036     207,000 207,909
Illinois Finance Authority Rev. (Edward-Elmhurst Healthcare), “A”, 5%, 1/01/2034     130,000 153,257
Illinois Finance Authority Rev. (Edward-Elmhurst Healthcare), “A”, 5%, 1/01/2035     125,000 147,070
Illinois Finance Authority Rev. (Franciscan Communities), “A”, 4.75%, 5/15/2033 (Prerefunded 5/15/2023)     25,000 27,388
Illinois Finance Authority Rev. (Franciscan Communities), “A”, 4.75%, 5/15/2033     175,000 182,425
Illinois Finance Authority Rev. (Franciscan Communities), “A”, 5.125%, 5/15/2043 (Prerefunded 5/15/2023)     25,000 27,594
Illinois Finance Authority Rev. (Franciscan Communities), “A”, 5.125%, 5/15/2043     190,000 198,330
Illinois Finance Authority Rev. (Presence Health Network), “C”, 5%, 2/15/2036     155,000 185,196
Illinois Finance Authority Rev. (Presence Health Network), “C”, 4%, 2/15/2041 (Prerefunded 2/15/2027)     25,000 29,435
Illinois Finance Authority Rev. (Presence Health Network), “C”, 4%, 2/15/2041     500,000 556,445
Illinois Finance Authority Rev. (Presence Health Network), “C”, 5%, 2/15/2041     315,000 371,656
Illinois Finance Authority Rev. (Rehabilitation Institute of Chicago), “A”, 6%, 7/01/2043     200,000 217,582
Illinois Finance Authority Rev. (Rosalind Franklin University), “A”, 5%, 8/01/2042     35,000 39,702
Illinois Finance Authority Rev. (Rosalind Franklin University), “A”, 5%, 8/01/2047     70,000 78,975
Illinois Finance Authority Rev. (Rosalind Franklin University, Research Building Project), “C”, 5%, 8/01/2046     55,000 62,058
Illinois Finance Authority Rev. (Rosalind Franklin University, Research Building Project), “C”, 5%, 8/01/2049     55,000 62,009
Illinois Finance Authority Rev. (Silver Cross Hospital & Medical Centers), “C”, 5%, 8/15/2035     420,000 475,810
Illinois Finance Authority Rev. (Southern Illinois Healthcare Enterprises, Inc.), “C”, 5%, 3/01/2034     5,000 5,947
Illinois Finance Authority, Health Services Facility Lease Rev. (Provident Group - UIC Surgery Center LLC - University of Illinois Health Services Facility Project), 4%, 10/01/2050     330,000 364,369
Illinois Finance Authority, Student Housing and Academic Facility Rev. (CHF-Chicago LLC-University of Illinois at Chicago Project), “A”, 5%, 2/15/2037     20,000 22,001
Illinois Finance Authority, Student Housing and Academic Facility Rev. (CHF-Chicago LLC-University of Illinois at Chicago Project), “A”, 5%, 2/15/2047     45,000 49,140
Illinois Finance Authority, Student Housing and Academic Facility Rev. (CHF-Chicago LLC-University of Illinois at Chicago Project), “A”, 5%, 2/15/2050     25,000 27,254
Illinois Finance Authority, Student Housing Rev. (Northern Illinois University Project), 6.625%, 10/01/2031     615,000 625,357
Illinois Railsplitter Tobacco Settlement Authority Rev., 6%, 6/01/2028 (Prerefunded 6/01/2021)     1,365,000 1,384,724
Illinois Sales Tax Securitization Corp., “A”, 5%, 1/01/2030     5,000 6,074
Illinois Sales Tax Securitization Corp., Second Lien, “A”, 5%, 1/01/2026     80,000 94,478
Illinois Sales Tax Securitization Corp., Second Lien, “A”, 5%, 1/01/2027     175,000 211,500
7

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Illinois - continued
Illinois Sales Tax Securitization Corp., Second Lien, “A”, 5%, 1/01/2028   $ 155,000 $190,972
Illinois Sales Tax Securitization Corp., Second Lien, “A”, 5%, 1/01/2029     35,000 43,832
Illinois Sales Tax Securitization Corp., Second Lien, “A”, 5%, 1/01/2030     80,000 101,630
Illinois Sales Tax Securitization Corp., Second Lien, “A”, 5%, 1/01/2036     75,000 92,623
Illinois Sales Tax Securitization Corp., Second Lien, “A”, 5%, 1/01/2037     95,000 118,011
Illinois Sales Tax Securitization Corp., Second Lien, “A”, 4%, 1/01/2038     40,000 45,452
Illinois Sales Tax Securitization Corp., Second Lien, “A”, 4%, 1/01/2039     35,000 39,652
Illinois Sales Tax Securitization Corp., Second Lien, “A”, 4%, 1/01/2040     45,000 51,246
Illinois Sports Facilities Authority, State Tax Supported Refunding Rev., BAM, 5%, 6/15/2028     45,000 55,904
Illinois Sports Facilities Authority, State Tax Supported Refunding Rev., BAM, 5%, 6/15/2029     50,000 63,138
Illinois Sports Facilities Authority, State Tax Supported Refunding Rev., BAM, 5%, 6/15/2030     30,000 37,592
Lincolnshire, IL, Special Service Area No. 1 (Sedgebrook Project), 6.25%, 3/01/2034     161,000 161,095
Metropolitan Pier & Exposition Authority Refunding Bonds (McCormick Place Expansion Project), Capital Appreciation, “B”, BAM, 0%, 12/15/2054     775,000 261,175
Metropolitan Pier & Exposition Authority Refunding Bonds (McCormick Place Expansion Project), Capital Appreciation, “B-1”, AGM, 0%, 6/15/2047     1,310,000 577,409
Metropolitan Pier & Exposition Authority Refunding Rev. (McCormick Place Expansion Project), Capital Appreciation, “B-1”, AGM, 0%, 6/15/2026     155,000 143,899
Romeoville, IL, Rev. (Lewis University Project), “A”, 5%, 10/01/2042     130,000 140,331
Romeoville, IL, Rev. (Lewis University Project), “B”, 5%, 10/01/2039     75,000 81,320
Romeoville, IL, Rev. (Lewis University Project), “B”, 4.125%, 10/01/2041     50,000 51,890
Romeoville, IL, Rev. (Lewis University Project), “B”, 4.125%, 10/01/2046     50,000 51,614
State of Illinois, 4.125%, 11/01/2031     85,000 91,821
State of Illinois, 4.5%, 11/01/2039     130,000 140,193
State of Illinois, 5%, 11/01/2040     380,000 420,367
State of Illinois, AGM, 5%, 2/01/2027     115,000 126,269
State of Illinois, NPFG, 6%, 11/01/2026     325,000 393,406
State of Illinois, “A”, 5%, 11/01/2027     475,000 560,666
State of Illinois, “A”, 5%, 12/01/2024     30,000 33,635
State of Illinois, “A”, 5%, 12/01/2038     45,000 50,790
University of Illinois, Auxiliary Facilities System Rev., “A”, BAM, 4%, 4/01/2047     500,000 560,140
Upper Illinois River Valley Development Authority Rev. (Morris Hospital), 5%, 12/01/2043     365,000 430,412
Upper Illinois River Valley Development Authority Rev. (Morris Hospital), 5%, 12/01/2048     365,000 427,645
        $23,766,752
Indiana - 1.6%
Indiana Finance Authority Rev. (BHI Senior Living), “A”, 6%, 11/15/2041   $ 275,000 $298,713
Indiana Finance Authority Rev. (Marquette Project), “A”, 5%, 3/01/2030     40,000 44,151
Indiana Finance Authority Rev. (Marquette Project), “A”, 5%, 3/01/2039     100,000 108,502
Indiana Finance Authority Rev. (Ohio River Bridges East End Crossing Project), “A”, 5%, 7/01/2035     180,000 193,817
Indiana Finance Authority Rev. (Ohio River Bridges East End Crossing Project), “A”, 5%, 7/01/2040     460,000 492,945
Indiana Finance Authority, Educational Facilities Tax-Exempt Rev. (Marian University Project), 5%, 9/15/2039     65,000 76,067
Indiana Finance Authority, Educational Facilities Tax-Exempt Rev. (Marian University Project), 4%, 9/15/2044     20,000 21,313
Indiana Finance Authority, Educational Facilities Tax-Exempt Rev. (Marian University Project), 4%, 9/15/2049     15,000 15,906
Indiana Finance Authority, Health Facilities Rev. (Baptist Healthcare System Obligated Group), 5%, 8/15/2051     345,000 402,087
Lake County, IN, Hammond Multi-School Building Corp., 5%, 7/15/2032     30,000 36,453
Lake County, IN, Hammond Multi-School Building Corp., 5%, 7/15/2033     20,000 24,216
Lake County, IN, Hammond Multi-School Building Corp., 5%, 7/15/2035     25,000 30,109
Lake County, IN, Hammond Multi-School Building Corp., 5%, 7/15/2038     80,000 95,570
Valparaiso, IN, Exempt Facilities Rev. (Pratt Paper LLC Project), 6.75%, 1/01/2034     260,000 293,428
        $2,133,277
Iowa - 0.3%
Iowa Finance Authority Senior Housing Rev. (Northcrest, Inc. Project), “A”, 5%, 3/01/2033   $ 45,000 $48,202
Iowa Finance Authority Senior Housing Rev. (Northcrest, Inc. Project), “A”, 5%, 3/01/2038     40,000 42,608
Iowa Finance Authority Senior Housing Rev. (Northcrest, Inc. Project), “A”, 5%, 3/01/2048     70,000 73,988
8

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Iowa - continued
Iowa Student Loan Liquidity Corp. Rev., “B”, 3.5%, 12/01/2044   $ 250,000 $250,235
        $415,033
Kansas - 1.4%
Coffeyville, KS, Electric Utility System Rev., “B”, NPFG, 5%, 6/01/2038 (Prerefunded 6/01/2025) (n)   $ 200,000 $233,728
Coffeyville, KS, Electric Utility System Rev., “B”, NPFG, 5%, 6/01/2042 (Prerefunded 6/01/2025) (n)     100,000 116,864
Hutchinson, KS, Hospital Facilities Rev. (Hutchinson Regional Medical Center, Inc.), 5%, 12/01/2036     40,000 44,037
Hutchinson, KS, Hospital Facilities Rev. (Hutchinson Regional Medical Center, Inc.), 5%, 12/01/2041     35,000 37,958
Lenexa, KS, Health Care Facility Rev. (Lakeview Village, Inc.), “A”, 5%, 5/15/2030     45,000 49,529
Lenexa, KS, Health Care Facility Rev. (Lakeview Village, Inc.), “A”, 5%, 5/15/2032     40,000 43,825
Lenexa, KS, Health Care Facility Rev. (Lakeview Village, Inc.), “A”, 5%, 5/15/2039     55,000 59,690
Wichita, KS, Health Care Facilities Rev. (Presbyterian Manors, Inc.), “A”, 6.375%, 5/15/2043     170,000 180,190
Wichita, KS, Health Care Facilities Rev. (Presbyterian Manors, Inc.), “I”, 5%, 5/15/2047     160,000 162,112
Wichita, KS, Sales Tax Special Obligations Rev. (K-96 Greenwich Star Bond Project), 4.2%, 9/01/2027     130,000 132,954
Wyandotte County/Kansas City, KS, Community College Auxiliary Enterprise System Rev., 4%, 9/01/2047     305,000 340,679
Wyandotte County/Kansas City, KS, Community College Auxiliary Enterprise System Rev., 4%, 9/01/2052     205,000 228,056
Wyandotte County/Kansas City, KS, Unified Government Community Improvement District Sales Tax Rev. (Legends Apartments Garage & West Lawn Project), 4.5%, 6/01/2040     60,000 61,585
Wyandotte County/Kansas City, KS, Unified Government Utility System Improvement Rev., “A”, 5%, 9/01/2044     200,000 222,850
        $1,914,057
Kentucky - 2.1%
Commonwealth of Kentucky State Property & Buildings Commission Rev. (Project No. 119), BAM, 5%, 5/01/2032   $ 35,000 $43,506
Commonwealth of Kentucky State Property & Buildings Commission Rev. (Project No. 119), BAM, 5%, 5/01/2033     35,000 43,426
Commonwealth of Kentucky State Property & Buildings Commission Rev. (Project No. 119), BAM, 5%, 5/01/2034     45,000 55,580
Kentucky Economic Development Finance Authority Healthcare Facilities Rev. (Baptist Life Communities Project), “A”, 6.25%, 11/15/2046     285,000 258,441
Kentucky Economic Development Finance Authority Healthcare Facilities Rev. (Baptist Life Communities Project), “A”, 6.375%, 11/15/2051     270,000 251,597
Kentucky Economic Development Finance Authority Healthcare Facilities Rev. (Masonic Homes of Kentucky, Inc.), 5.375%, 11/15/2042     180,000 181,103
Kentucky Economic Development Finance Authority Healthcare Facilities Rev. (Masonic Homes of Kentucky, Inc.), 5.5%, 11/15/2045     80,000 80,561
Kentucky Economic Development Finance Authority Hospital Rev. (Baptist Healthcare System), “B”, 5%, 8/15/2037     30,000 35,700
Kentucky Economic Development Finance Authority Hospital Rev. (Baptist Healthcare System), “B”, 5%, 8/15/2041     250,000 294,783
Kentucky Economic Development Finance Authority Hospital Rev. (Baptist Healthcare System), “B”, 5%, 8/15/2046     160,000 187,014
Kentucky Economic Development Finance Authority Hospital Rev. (Owensboro Health, Inc.), “A”, 5%, 6/01/2037     120,000 131,264
Kentucky Economic Development Finance Authority Hospital Rev. (Owensboro Health, Inc.), “A”, 5%, 6/01/2041     80,000 86,938
Kentucky Economic Development Finance Authority Hospital Rev. (Owensboro Health, Inc.), “A”, 5.25%, 6/01/2041     65,000 72,006
Kentucky Economic Development Finance Authority Hospital Rev. (Owensboro Health, Inc.), “A”, 5%, 6/01/2045     100,000 107,179
Kentucky Economic Development Finance Authority Rev. (Masonic Home Independent Living II, Inc. - Meadow Project and Grove Pointe Project), “A”, 5%, 5/15/2036     120,000 122,525
Kentucky Economic Development Finance Authority Rev. (Masonic Home Independent Living II, Inc. - Meadow Project and Grove Pointe Project), “A”, 5%, 5/15/2046     325,000 327,048
Kentucky Economic Development Finance Authority Rev. (Masonic Home Independent Living II, Inc. - Meadow Project and Grove Pointe Project), “A”, 5%, 5/15/2051     80,000 80,322
Kentucky Higher Education Student Loan Corp. Rev., Tax-Exempt, “B-1”, 5%, 6/01/2036     370,000 419,217
        $2,778,210
Louisiana - 3.7%
Jefferson Parish, LA, Hospital Service District No. 2 Hospital Rev. (East Jefferson General Hospital), 6.25%, 7/01/2031 (Prerefunded 7/01/2021)   $ 300,000 $305,994
Jefferson Parish, LA, Hospital Service District No. 2 Hospital Rev. (East Jefferson General Hospital), 6.375%, 7/01/2041 (Prerefunded 7/01/2021)     185,000 188,772
Louisiana Local Government, Environmental Facilities & Community Development Authority Rev. (Cameron Parish Gomesa Project), 5.65%, 11/01/2037 (n)     100,000 112,478
Louisiana Local Government, Environmental Facilities & Community Development Authority Rev. (CDF Healthcare), “A”, 5.625%, 6/01/2045     590,000 614,432
9

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Louisiana - continued
Louisiana Local Government, Environmental Facilities & Community Development Authority Rev. (Jefferson Parish Gomesa Project), 4%, 11/01/2044 (n)   $ 155,000 $158,298
Louisiana Local Government, Environmental Facilities & Community Development Authority Rev. (Lafourche Parish Gomesa Project), 3.95%, 11/01/2043 (n)     145,000 147,661
Louisiana Local Government, Environmental Facilities & Community Development Authority Rev. (St. James Parish Gomesa Project), 3.9%, 11/01/2044 (n)     175,000 177,438
Louisiana Local Government, Environmental Facilities & Community Development Authority Rev. (St. James Place of Baton Rouge Project), “A”, 6%, 11/15/2035     100,000 109,206
Louisiana Local Government, Environmental Facilities & Community Development Authority Rev. (St. James Place of Baton Rouge Project), “A”, 6.25%, 11/15/2045     315,000 342,134
Louisiana Local Government, Environmental Facilities & Community Development Authority Rev. (Tangipahoa Parish Gomesa Project), 5.375%, 11/01/2038 (n)     100,000 110,382
Louisiana Local Government, Environmental Facilities & Community Development Authority Rev. (Terrebonne Parish Gomesa Project), 5.5%, 11/01/2039 (n)     100,000 108,698
Louisiana Local Government, Environmental Facilities & Community Development Authority Rev. (Vermilion Parish Gomesa Project), 4.625%, 11/01/2038 (n)     100,000 106,669
Louisiana Local Government, Environmental Facilities & Community Development Authority Rev. (Westside Habilitation Center Project), “A”, 6.125%, 2/01/2037 (n)     190,000 208,656
Louisiana Local Government, Environmental Facilities & Community Development Authority Rev. (Westside Habilitation Center Project), “A”, 6.25%, 2/01/2047 (n)     160,000 174,390
Louisiana Local Government, Environmental Facilities & Community Development Authority Student Housing Rev. (Provident Group - ULM Properties LLC - University of Louisiana at Monroe Project), “A”, 5%, 7/01/2039 (n)     100,000 100,875
Louisiana Local Government, Environmental Facilities & Community Development Authority Student Housing Rev. (Provident Group - ULM Properties LLC - University of Louisiana at Monroe Project), “A”, 5%, 7/01/2054 (n)     105,000 102,905
Louisiana Public Facilities Authority Rev. (Loyola University Project), Convertible Capital Appreciation, 0% to 10/01/2023, 5.25% to 10/01/2046     300,000 299,067
Louisiana Public Facilities Authority Rev. (Provident Group - HSC Properties, Inc., LSU Health Foundation and New Orleans Project), “A-1”, 5.1%, 1/01/2057 (n)     630,000 672,393
New Orleans, LA, Sewerage Services Rev., 5%, 12/01/2040     60,000 71,839
New Orleans, LA, Sewerage Services Rev., 5%, 6/01/2045     165,000 194,334
New Orleans, LA, Sewerage Services Rev., 5%, 12/01/2045     80,000 95,785
St. Charles Parish, LA, Gulf Zone Opportunity Zone Rev. (Valero Energy Corp.), 4%, 12/01/2040 (Put Date 6/01/2022)     605,000 631,142
        $5,033,548
Maine - 0.6%
Maine Finance Authority Solid Waste Disposal Rev. (Casella Waste Systems, Inc.), “R-2”, 4.375%, 8/01/2035 (Put Date 8/01/2025) (n)   $ 130,000 $142,806
Maine Finance Authority Solid Waste Disposal Rev. (Casella Waste Systems, Inc.), “R-3”, 5.25%, 1/01/2025 (n)     300,000 335,421
Maine Health and Higher Educational Facilities Authority Rev. (MaineHealth), “A”, 4%, 7/01/2050     295,000 333,598
        $811,825
Maryland - 1.0%
Howard County, MD, Special Obligation (Downtown Columbia Project), “A”, 4.5%, 2/15/2047 (n)   $ 120,000 $124,528
Maryland Economic Development Corp., Special Obligation (Port Covington Project), 4%, 9/01/2050     100,000 106,676
Maryland Economic Development Corp., Student Housing Rev. (Morgan State University Project), 5%, 7/01/2056     95,000 111,033
Maryland Economic Development Corp., Subordinate Parking Facilities Rev. (Baltimore City Project), “C”, 4%, 6/01/2038     10,000 9,439
Maryland Economic Development Corp., Subordinate Parking Facilities Rev. (Baltimore City Project), “C”, 4%, 6/01/2048     25,000 22,184
Maryland Economic Development Corp., Subordinate Parking Facilities Rev. (Baltimore City Project), “C”, 4%, 6/01/2058     80,000 68,450
Maryland Health & Higher Educational Facilities Authority Rev. (Adventist Healthcare Issue), “A”, 5.5%, 1/01/2036     145,000 171,360
Maryland Health & Higher Educational Facilities Authority Rev. (Doctors Community Hospital), “A”, 5%, 7/01/2033     85,000 97,694
Maryland Health & Higher Educational Facilities Authority Rev. (Doctors Community Hospital), “A”, 5%, 7/01/2034     55,000 62,972
Maryland Health & Higher Educational Facilities Authority Rev. (Doctors Community Hospital), “A”, 5%, 7/01/2038     245,000 276,573
Prince George's County, MD, Special Obligation (Westphalia Town Center Project), 5.25%, 7/01/2048 (n)     100,000 109,083
Rockville, MD, Mayor & Council Economic Development Refunding Rev. (Ingleside at King Farm Project), “A-1”, 5%, 11/01/2037     40,000 42,031
Rockville, MD, Mayor & Council Economic Development Rev. (Ingleside at King Farm Project), “B”, 5%, 11/01/2042     70,000 72,726
Rockville, MD, Mayor & Council Economic Development Rev. (Ingleside at King Farm Project), “B”, 5%, 11/01/2047     70,000 72,276
        $1,347,025
10

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Massachusetts - 6.0%
Boston, MA, Metropolitan Transit Parking Corp., Systemwide Parking Rev., 5.25%, 7/01/2036   $ 300,000 $304,083
Massachusetts Development Finance Agency Rev. (Adventcare), “A”, 6.75%, 10/15/2037 (a)(d)     695,000 312,750
Massachusetts Development Finance Agency Rev. (Atrius Health Issue), “A”, 5%, 6/01/2039     55,000 66,051
Massachusetts Development Finance Agency Rev. (Atrius Health Issue), “A”, 4%, 6/01/2049     45,000 48,979
Massachusetts Development Finance Agency Rev. (Beth Israel Health, Inc.), “2018 I-2”, 5%, 7/01/2053     960,000 1,122,557
Massachusetts Development Finance Agency Rev. (Broad Institute, Inc.), “A”, 5.25%, 4/01/2037 (Prerefunded 4/01/2021)     580,000 582,390
Massachusetts Development Finance Agency Rev. (Linden Ponds, Inc.), Capital Appreciation, “B”, 0%, 11/15/2056     43,059 7,242
Massachusetts Development Finance Agency Rev. (Newbridge on the Charles, Inc.), 5%, 10/01/2047 (n)     100,000 109,388
Massachusetts Development Finance Agency Rev. (Newbridge on the Charles, Inc.), 5%, 10/01/2057 (n)     190,000 207,837
Massachusetts Development Finance Agency Rev. (North Hill Communities), “A”, 6.25%, 11/15/2033 (Prerefunded 11/15/2023) (n)     100,000 116,033
Massachusetts Development Finance Agency Rev. (Southcoast Health System Obligated Group), “G”, 4%, 7/01/2046     200,000 228,362
Massachusetts Development Finance Agency Rev. (Southcoast Health System Obligated Group), “G”, 5%, 7/01/2050     565,000 701,351
Massachusetts Development Finance Agency Rev. (Suffolk University), 5%, 7/01/2033     30,000 35,543
Massachusetts Development Finance Agency Rev. (Suffolk University), 5%, 7/01/2034     35,000 41,307
Massachusetts Development Finance Agency Rev. (UMass Memorial Health Care Obligated Group), “I”, 5%, 7/01/2036     110,000 126,789
Massachusetts Development Finance Agency Rev. (Wellforce, Inc.), “A”, 4%, 7/01/2044     2,445,000 2,699,036
Massachusetts Development Finance Agency Rev. (Wellforce, Inc.), “A”, 5%, 7/01/2044     55,000 65,243
Massachusetts Educational Financing Authority, Education Loan Rev., “C”, 2.625%, 7/01/2036     60,000 60,160
Massachusetts Educational Financing Authority, Education Loan Rev., “C”, 4.125%, 7/01/2046     315,000 327,030
Massachusetts Educational Financing Authority, Education Loan Rev., “I-A”, 5.5%, 1/01/2022     25,000 25,063
Massachusetts Educational Financing Authority, Education Loan Rev., “J”, 3.5%, 7/01/2033     445,000 452,850
Massachusetts Port Authority Special Facilities Rev. (ConRAC Project), “A”, 5.125%, 7/01/2041 (Prerefunded 7/01/2021)     40,000 40,646
Massachusetts School Building Authority, Dedicated Sales Tax Rev., “B”, 5%, 10/15/2032 (Prerefunded 10/15/2021)     390,000 401,755
        $8,082,445
Michigan - 4.1%
Detroit, MI, Downtown Development Authority Tax Increment Rev. (Catalyst Development), “A”, AGM, 5%, 7/01/2043   $ 95,000 $107,087
Detroit, MI, Water & Sewerage Department, Senior Lien Sewage Disposal System Rev., “A”, 5.25%, 7/01/2039 (Prerefunded 7/01/2022)     580,000 619,382
Detroit, MI, Water Supply System Rev., Senior Lien, “A”, 5%, 7/01/2036 (Prerefunded 7/01/2021)     30,000 30,483
Detroit, MI, Water Supply System Rev., Senior Lien, “C”, 5%, 7/01/2041 (Prerefunded 7/01/2021)     40,000 40,644
Eastern Michigan University Board of Regents, General Rev., “A”, 4%, 3/01/2047     255,000 278,730
Great Lakes Water Authority, Michigan Water Supply System Rev., “D”, AGM, 5%, 7/01/2034     295,000 352,613
Michigan Finance Authority Hospital Rev. (Ascension Health Senior Credit Group), “F-4”, 5%, 11/15/2047     810,000 1,000,828
Michigan Finance Authority Hospital Rev. (Trinity Health Credit Group), 5%, 12/01/2035 (Prerefunded 12/01/2021)     1,000,000 1,036,360
Michigan Finance Authority Hospital Rev. (Trinity Health Credit Group), 5%, 12/01/2048     225,000 271,699
Michigan Finance Authority Local Government Loan Program Rev. (Detroit Water and Sewerage Department Sewage Disposal System Rev. Refunding Second Lien Local Project), “C”, 5%, 7/01/2033     60,000 70,318
Michigan Finance Authority Local Government Loan Program Rev. (Detroit Water and Sewerage Department Sewage Disposal System Rev. Refunding Second Lien Local Project), “C”, 5%, 7/01/2034     140,000 163,815
Michigan Finance Authority Local Government Loan Program Rev. (Detroit Water and Sewerage Department Sewage Disposal System Rev. Refunding Second Lien Local Project), “C”, 5%, 7/01/2035     95,000 110,984
Michigan Finance Authority Local Government Loan Program Rev. (Detroit Water and Sewerage Department Water Supply System Rev. Refunding Local Project), “D-2”, 5%, 7/01/2034     60,000 70,207
Waterford Township, MI, Economic Development Corp. (Canterbury Health Care, Inc.), “A”, 5%, 7/01/2046 (n)     105,000 97,591
Waterford Township, MI, Economic Development Corp. (Canterbury Health Care, Inc.), “A”, 5%, 7/01/2051 (n)     105,000 96,277
Wayne County, MI, Airport Authority Rev. (Detroit Metropolitan Wayne County Airport), “B”, 5%, 12/01/2044     35,000 39,703
Wayne County, MI, Airport Authority Rev. (Detroit Metropolitan Wayne County Airport), “B”, BAM, 5%, 12/01/2039     40,000 45,675
Wayne County, MI, Airport Authority Rev. (Detroit Metropolitan Wayne County Airport), “C”, 5%, 12/01/2039     30,000 34,020
Wayne County, MI, Airport Authority Rev. (Detroit Metropolitan Wayne County Airport), “C”, 5%, 12/01/2044     90,000 101,389
Wayne County, MI, Airport Authority Rev. (Detroit Metropolitan Wayne County Airport), “D”, 5%, 12/01/2031     150,000 184,171
Wayne County, MI, Airport Authority Rev. (Detroit Metropolitan Wayne County Airport), “D”, 5%, 12/01/2032     160,000 194,990
Wayne County, MI, Detroit School District, ”A“, 5%, 5/01/2038     145,000 183,339
Wayne County, MI, Detroit School District, ”A“, 5%, 5/01/2040     265,000 333,312
        $5,463,617
11

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Minnesota - 0.5%
Duluth, MN, Economic Development Authority, Health Care Facilities Rev. (Essentia Health), “A”, 4.25%, 2/15/2043   $ 85,000 $94,835
Duluth, MN, Economic Development Authority, Health Care Facilities Rev. (Essentia Health), “A”, 5%, 2/15/2043     155,000 182,937
Duluth, MN, Economic Development Authority, Health Care Facilities Rev. (Essentia Health), “A”, 4.25%, 2/15/2048     90,000 99,729
Duluth, MN, Economic Development Authority, Health Care Facilities Rev. (Essentia Health), “A”, 5%, 2/15/2048     125,000 146,538
Minneapolis & St. Paul, MN, Housing Authority Rev. (City Living), “A-2”, GNMA, 5%, 12/01/2038     511 511
St. Paul, MN, Housing & Redevelopment Authority Charter School Lease Rev. (Great River School Project), “A”, 5.5%, 7/01/2052 (n)     100,000 110,367
        $634,917
Mississippi - 0.6%
Mississippi Development Bank Special Obligation (Hancock County Gomesa Project), 4.55%, 11/01/2039 (n)   $ 200,000 $210,972
Mississippi Hospital Equipment & Facilities Authority Rev. (Baptist Memorial Healthcare), “A”, 5%, 9/01/2046     110,000 123,914
Mississippi State University, Educational Building Corp. Rev. (Residence Hall Construction and Refunding Project), 5%, 8/01/2036 (Prerefunded 8/01/2021)     440,000 448,862
        $783,748
Missouri - 2.6%
Kansas City, MO, Industrial Development Authority, Airport Rev. (Kansas City International Airport Terminal Modernization Project), “B”, AGM, 5%, 3/01/2049   $ 520,000 $620,854
Kansas City, MO, Industrial Development Authority, Airport Rev. (Kansas City International Airport Terminal Modernization Project), “B”, AGM, 5%, 3/01/2055     315,000 374,336
Kansas City, MO, Industrial Development Authority, Airport Rev. (Kansas City International Airport Terminal Modernization Project), “B”, 5%, 3/01/2046     695,000 818,981
Kansas City, MO, Land Clearance for Redevelopment Authority Rev. (Convention Center Hotel Project - TIF Financing), “B”, 5%, 2/01/2050 (n)     310,000 326,638
St. Louis County, MO, Industrial Development Authority Health Facilities Rev. (Nazareth Living Center), “A”, 5%, 8/15/2030     40,000 41,319
St. Louis County, MO, Industrial Development Authority Health Facilities Rev. (Nazareth Living Center), “A”, 5%, 8/15/2035     25,000 25,641
St. Louis County, MO, Industrial Development Authority Health Facilities Rev. (Nazareth Living Center), “A”, 5.125%, 8/15/2045     65,000 66,254
St. Louis County, MO, Industrial Development Authority Health Facilities Rev. (Ranken-Jordan Project), 4%, 11/15/2036     55,000 55,561
St. Louis County, MO, Industrial Development Authority Health Facilities Rev. (Ranken-Jordan Project), 5%, 11/15/2041     55,000 57,670
St. Louis, MO, Industrial Development Authority Financing Rev. (Ballpark Village Development Project), “A”, 3.875%, 11/15/2029     50,000 48,257
St. Louis, MO, Industrial Development Authority Financing Rev. (Ballpark Village Development Project), “A”, 4.375%, 11/15/2035     95,000 89,620
St. Louis, MO, Industrial Development Authority Financing Rev. (Ballpark Village Development Project), “A”, 4.75%, 11/15/2047     205,000 194,420
St. Louis, MO, Industrial Development Authority Rev. (Friendship Village St. Louis Obligated Group), “A”, 5.25%, 9/01/2053     440,000 487,177
St. Louis, MO, Municipal Finance Corp. Leasehold Rev. (Convention Center Expansion and Improvement Projects), AGM, 5%, 10/01/2045     270,000 332,192
        $3,538,920
Montana - 0.4%
Montana Board of Housing Single Family Program (Federally Insured or Guaranteed Mortgage Loans), “A”, 4%, 6/01/2049   $ 45,000 $48,902
Montana Finance Authority, Health Care Facilities Rev. (Kalispell Regional Medical Center), “B”, 5%, 7/01/2043     160,000 182,575
Montana Finance Authority, Health Care Facilities Rev. (Kalispell Regional Medical Center), “B”, 5%, 7/01/2048     235,000 265,571
        $497,048
Nebraska - 0.1%
Central Plains Energy Project, NE, Gas Project Rev. (Project No. 3), “A”, 5%, 9/01/2036   $ 105,000 $142,808
Nevada - 0.4%
Clark County, NV, School District General Obligation, “A”, AGM, 4%, 6/15/2040   $ 125,000 $144,101
Director of the State of Nevada, Department of Business and Industry, Charter School Lease Rev. (Somerset Academy), “A”, 5.125%, 12/15/2045 (n)     150,000 157,877
Director of the State of Nevada, Department of Business and Industry, Charter School Lease Rev. (Somerset Academy), “A”, 5%, 12/15/2048 (n)     100,000 104,577
Nevada Department of Business & Industry Charter School Rev. (Doral Academy of Nevada), “A”, 5%, 7/15/2047 (n)     100,000 107,409
Reno, NV, Sales Tax Rev. (Retrac-Reno Transportation Rail Access Corridor Project), “B”, AGM, 5%, 6/01/2033     5,000 5,924
Reno, NV, Sales Tax Rev. (Retrac-Reno Transportation Rail Access Corridor Project), “B”, AGM, 5%, 6/01/2038     5,000 5,836
Reno, NV, Sales Tax Rev. (Retrac-Reno Transportation Rail Access Corridor Project), “B”, AGM, 4%, 6/01/2048     20,000 21,376
12

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Nevada - continued
Reno, NV, Sales Tax Rev. (Retrac-Reno Transportation Rail Access Corridor Project), “B”, AGM, 4.125%, 6/01/2058   $ 25,000 $26,792
        $573,892
New Hampshire - 0.8%
National Finance Authority, New Hampshire Municipal Certificates “A”, 4.125%, 1/20/2034   $ 392,175 $439,973
National Finance Authority, New Hampshire Resource Recovery Refunding Rev. (Covanta Project), “C”, 4.875%, 11/01/2042 (n)     300,000 314,772
New Hampshire Health & Education Facilities Authority Rev. (Memorial Hospital), 5.5%, 6/01/2031     105,000 123,065
New Hampshire Health & Education Facilities Authority Rev. (Memorial Hospital), 5.5%, 6/01/2036     100,000 115,756
New Hampshire National Finance Authority, Senior Living Rev. (Springpoint Senior Living Project), 4%, 1/01/2051     85,000 92,536
        $1,086,102
New Jersey - 5.0%
Atlantic City, NJ, Tax Appeal Refunding Bonds (Qualified Pursuant to the Provisions of the Municipal Qualified Bond Act), “A”, BAM, 5%, 3/01/2037   $ 25,000 $29,138
Atlantic City, NJ, Tax Appeal Refunding Bonds (Qualified Pursuant to the Provisions of the Municipal Qualified Bond Act), “A”, BAM, 5%, 3/01/2042     30,000 34,602
New Jersey Building Authority Rev., Unrefunded Balance, “A”, BAM, 5%, 6/15/2029     25,000 29,537
New Jersey Casino Reinvestment Development Authority, Luxury Tax Rev., AGM, 5%, 11/01/2031     160,000 174,349
New Jersey Casino Reinvestment Development Authority, Luxury Tax Rev., AGM, 5%, 11/01/2032     65,000 70,558
New Jersey Economic Development Authority Rev. (Goethals Bridge Replacement Project), 5.5%, 1/01/2027     40,000 44,981
New Jersey Economic Development Authority Rev. (Goethals Bridge Replacement Project), 5%, 1/01/2028     40,000 44,324
New Jersey Economic Development Authority Rev. (Goethals Bridge Replacement Project), 5.375%, 1/01/2043     255,000 280,786
New Jersey Economic Development Authority Rev. (Goethals Bridge Replacement Project), AGM, 5%, 1/01/2031     125,000 139,963
New Jersey Economic Development Authority Rev. (Kapkowski Road Landfill Project), 6.5%, 4/01/2031     870,000 922,939
New Jersey Economic Development Authority Rev. (Lions Gate Project), 5%, 1/01/2034     30,000 30,496
New Jersey Economic Development Authority Rev. (Provident Group - Rowan Properties LLC - Rowan University Student Housing Project), “A”, 5%, 1/01/2030     80,000 83,359
New Jersey Economic Development Authority Rev. (Provident Group - Rowan Properties LLC - Rowan University Student Housing Project), “A”, 5%, 1/01/2035     95,000 98,270
New Jersey Economic Development Authority Rev. (School Facilities Construction), 5%, 6/15/2032     15,000 18,799
New Jersey Economic Development Authority Rev. (School Facilities Construction), 5%, 6/15/2033     10,000 12,450
New Jersey Economic Development Authority Rev. (School Facilities Construction), 4%, 6/15/2034     10,000 11,359
New Jersey Economic Development Authority Rev. (School Facilities Construction), 4%, 6/15/2035     30,000 33,909
New Jersey Economic Development Authority Rev. (School Facilities Construction), 4%, 6/15/2036     20,000 22,477
New Jersey Economic Development Authority Rev. (School Facilities Construction), 4%, 6/15/2037     20,000 22,353
New Jersey Economic Development Authority Rev. (School Facilities Construction), 4%, 6/15/2038     30,000 33,381
New Jersey Economic Development Authority Rev. (School Facilities Construction), 4%, 6/15/2039     20,000 22,187
New Jersey Economic Development Authority Rev. (School Facilities Construction), 4%, 6/15/2040     35,000 38,693
New Jersey Economic Development Authority Rev. (School Facilities Construction), “DDD”, 5%, 6/15/2034     10,000 11,670
New Jersey Economic Development Authority Rev. (School Facilities Construction), “DDD”, 5%, 6/15/2035     10,000 11,646
New Jersey Economic Development Authority Rev. (School Facilities Construction), “DDD”, 5%, 6/15/2042     55,000 63,034
New Jersey Economic Development Authority, Special Facilities Rev. (Continental Airlines, Inc.), “A”, 5.625%, 11/15/2030     265,000 295,965
New Jersey Economic Development Authority, State Lease Rev. (Juvenile Justice Commission Facilities Project), “C”, 5%, 6/15/2042     180,000 208,217
New Jersey Economic Development Motor Vehicle Surcharges Subordinate Refunding Rev., “A”, 3.125%, 7/01/2029     40,000 40,336
New Jersey Economic Development Motor Vehicle Surcharges Subordinate Refunding Rev., “A”, 5%, 7/01/2033     260,000 301,535
New Jersey Health Care Facilities, Financing Authority Rev. (University Hospital), “A”, AGM, 5%, 7/01/2046     395,000 442,665
New Jersey Higher Education Student Assistance Authority, Senior Student Loan Rev., ”B“, 3.5%, 12/01/2039     325,000 334,041
New Jersey Transportation Trust Fund Authority, “AA”, 5%, 6/15/2045     115,000 137,140
New Jersey Transportation Trust Fund Authority, Federal Highway Reimbursement Rev., “A”, 5%, 6/15/2029     155,000 181,857
New Jersey Transportation Trust Fund Authority, Federal Highway Reimbursement Rev., “A”, 5%, 6/15/2031     105,000 121,928
New Jersey Transportation Trust Fund Authority, Transportation Program, “AA”, 5%, 6/15/2038     1,000,000 1,095,890
New Jersey Turnpike Authority, Turnpike Rev., “A”, 4%, 1/01/2051     165,000 188,978
State of New Jersey, COVID-19 General Obligation, “A”, 4%, 6/01/2031     965,000 1,157,189
        $6,791,001
13

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
New Mexico - 0.0%
Los Ranchos de Albuquerque, NM, Education Facilities Rev. (Albuquerque Academy Project), 4%, 9/01/2040   $ 20,000 $22,286
New York - 7.5%
Buffalo & Erie County, NY, Industrial Land Development Corp. Rev. (Buffalo State College), “A”, 5.375%, 10/01/2041 (Prerefunded 4/01/2021)   $ 200,000 $200,846
Build NYC Resource Corp. Rev. (Albert Einstein School of Medicine, Inc.), 5.5%, 9/01/2045 (n)     395,000 436,605
Hudson Yards, NY, Infrastructure Corp. Rev., “A”, Unrefunded Balance, 5.75%, 2/15/2047     140,000 140,557
Metropolitan Transportation Authority, NY, Transportation Rev., “A”, 4%, 11/15/2052     75,000 81,367
Metropolitan Transportation Authority, NY, Transportation Rev., “C-1”, 5.25%, 11/15/2055     170,000 203,881
Monroe County, NY, Industrial Development Corp. Rev. (University of Rochester Project), “A”, 4%, 7/01/2050     170,000 191,940
New Rochelle, NY, Corp. for Local Development Rev. (Iona College Project), “A”, 5%, 7/01/2034     65,000 71,913
New Rochelle, NY, Corp. for Local Development Rev. (Iona College Project), “A”, 5%, 7/01/2040     165,000 180,652
New Rochelle, NY, Corp. for Local Development Rev. (Iona College Project), “A”, 5%, 7/01/2045     80,000 86,983
New York Dormitory Authority Rev., Non-State Supported Debt (Orange Regional Medical Center Obligated Group Rev.), 5%, 12/01/2035 (n)     100,000 114,436
New York Dormitory Authority Rev., Non-State Supported Debt (Orange Regional Medical Center Obligated Group Rev.), 5%, 12/01/2040 (n)     100,000 110,984
New York Environmental Facilities Corp., Clean Drinking Water Revolving Funds, 5%, 6/15/2041     685,000 694,076
New York Environmental Facilities Corp., State Revolving Funds Rev., “C”, 5%, 5/15/2041     945,000 953,911
New York Liberty Development Corp., Liberty Rev. (3 World Trade Center Project), “1”, 5%, 11/15/2044 (n)     500,000 543,375
New York Transportation Development Corp., Special Facilities Rev. (American Airlines, Inc. John F. Kennedy International Airport Project), 5%, 8/01/2026     350,000 356,076
New York Transportation Development Corp., Special Facilities Rev. (American Airlines, Inc. John F. Kennedy International Airport Project), 5%, 8/01/2031     210,000 213,459
New York Transportation Development Corp., Special Facilities Rev. (Delta Airlines, Inc. LaGuardia Airport Terminals C&D Redevelopment Project), 5%, 1/01/2031     365,000 435,102
New York Transportation Development Corp., Special Facilities Rev. (Delta Airlines, Inc. LaGuardia Airport Terminals C&D Redevelopment Project), 5%, 1/01/2032     75,000 89,044
New York Transportation Development Corp., Special Facilities Rev. (Delta Airlines, Inc. LaGuardia Airport Terminals C&D Redevelopment Project), 4%, 1/01/2036     100,000 109,920
New York Transportation Development Corp., Special Facilities Rev. (Delta Airlines, Inc. LaGuardia Airport Terminals C&D Redevelopment Project), 4.375%, 10/01/2045     545,000 623,082
New York Transportation Development Corp., Special Facilities Rev. (Terminal 4 John F. Kennedy International Airport Project), “C”, 5%, 12/01/2038     290,000 356,227
New York Transportation Development Corp., Special Facilities Rev. (Terminal 4, John F. Kennedy International Airport Project), 4%, 12/01/2038     70,000 78,755
New York, NY, City Housing Development Corp., Multi-Family Housing Rev. (8 Spruce Street), “E”, 3.5%, 2/15/2048     100,000 102,355
New York, NY, City Transitional Finance Authority Rev., “C-1”, 4%, 5/01/2037     195,000 225,964
New York, NY, City Transitional Finance Authority Rev., “C-1”, 4%, 5/01/2038     245,000 282,514
New York, NY, Industrial Development Agency Pilot Refunding Rev., (Yankee Stadium Project), “A”, AGM, 4%, 3/01/2045     35,000 39,803
New York, NY, Municipal Water Finance Authority, Water & Sewer System Rev., “GG-1”, 4%, 6/15/2050     505,000 578,488
New York, NY, Trust for Cultural Resources (Lincoln Center For The Performing Arts, Inc.), “A”, 4%, 12/01/2035     100,000 117,632
Niagara County, NY, Industrial Development Agency, Solid Waste Disposal Rev. (Covanta Energy Project), “A”, 4.75%, 11/01/2042 (n)     270,000 282,536
Orange County, NY, Funding Corp. Assisted Living Residence Rev. (Hamlet at Wallkill Assisted Living Project), 6.5%, 1/01/2046     175,000 176,117
Port Authority of NY & NJ (221st Series), 4%, 7/15/2055     665,000 733,741
Syracuse, NY, Industrial Development Agency PILOT Rev. (Carousel Center Project), “A”, 5%, 1/01/2029     30,000 31,277
Syracuse, NY, Industrial Development Agency PILOT Rev. (Carousel Center Project), “A”, 5%, 1/01/2032     75,000 77,330
Syracuse, NY, Industrial Development Agency PILOT Rev. (Carousel Center Project), “A”, 5%, 1/01/2034     205,000 210,199
Syracuse, NY, Industrial Development Agency PILOT Rev. (Carousel Center Project), “A”, 5%, 1/01/2036     110,000 112,309
Tobacco Settlement Asset Securitization Corp., NY, “A”, 5%, 6/01/2034     50,000 60,232
Tobacco Settlement Asset Securitization Corp., NY, “A”, 5%, 6/01/2035     25,000 30,019
Tobacco Settlement Asset Securitization Corp., NY, “A”, 5%, 6/01/2041     185,000 213,440
Ulster County, NY, Capital Resource Corp. Rev. (Woodland Pond at New Paltz Project), 4%, 9/15/2025     150,000 146,052
Ulster County, NY, Capital Resource Corp. Rev. (Woodland Pond at New Paltz Project), 5%, 9/15/2037     400,000 390,324
        $10,083,523
14

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
North Carolina - 1.3%
Durham, NC, Durham Housing Authority Rev. (Magnolia Pointe Apartments), 5.65%, 2/01/2038 (Prerefunded 1/31/2023)   $ 826,180 $903,973
North Carolina Medical Care Commission, Health Care Facilities First Mortgage Rev. (Pennybyrn at Maryfield), 5%, 10/01/2025     55,000 58,572
North Carolina Medical Care Commission, Health Care Facilities First Mortgage Rev. (Pennybyrn at Maryfield), 5%, 10/01/2030     70,000 74,816
North Carolina Medical Care Commission, Health Care Facilities First Mortgage Rev. (Pennybyrn at Maryfield), 5%, 10/01/2035     45,000 47,609
North Carolina Medical Care Commission, Health Care Facilities First Mortgage Rev. (Presbyterian Homes Obligated Group), “A”, 5%, 10/01/2050     90,000 106,411
North Carolina Medical Care Commission, Retirement Facilities First Mortgage Rev. (United Church Homes and Services), “A”, 5%, 9/01/2037     75,000 77,227
North Carolina Turnpike Authority, Monroe Expressway Toll Rev., “A”, 5%, 7/01/2042     30,000 33,877
North Carolina Turnpike Authority, Monroe Expressway Toll Rev., “A”, 5%, 7/01/2047     60,000 67,309
North Carolina Turnpike Authority, Monroe Expressway Toll Rev., “A”, 5%, 7/01/2051     130,000 145,564
North Carolina Turnpike Authority, Monroe Expressway Toll Rev., “A”, 5%, 7/01/2054     50,000 55,907
University of North Carolina, Greensboro, Rev., 5%, 4/01/2039     110,000 120,623
        $1,691,888
North Dakota - 0.1%
Ward County, ND, Health Care Facilities Rev. (Trinity Obligated Group), “C”, 5%, 6/01/2034   $ 40,000 $45,577
Ward County, ND, Health Care Facilities Rev. (Trinity Obligated Group), “C”, 5%, 6/01/2048     10,000 11,069
Ward County, ND, Health Care Facilities Rev. (Trinity Obligated Group), “C”, 5%, 6/01/2053     70,000 77,231
        $133,877
Ohio - 4.8%
Buckeye, OH, Tobacco Settlement Financing Authority Senior Asset-Backed Refunding, 2020A-2, “1”, 5%, 6/01/2036   $ 130,000 $162,304
Buckeye, OH, Tobacco Settlement Financing Authority Senior Asset-Backed Refunding, 2020A-2, “1”, 4%, 6/01/2048     275,000 307,175
Buckeye, OH, Tobacco Settlement Financing Authority Senior Asset-Backed Refunding, 2020B-2, “2”, 5%, 6/01/2055     1,175,000 1,322,051
Buckeye, OH, Tobacco Settlement Financing Authority Senior Asset-Backed Refunding, 2020B-3, Capital Appreciation, “2”, 0%, 6/01/2057     2,665,000 399,217
Cuyahoga County, OH, Hospital Rev. (Metrohealth System), 5%, 2/15/2042     210,000 236,769
Cuyahoga County, OH, Hospital Rev. (Metrohealth System), 4.75%, 2/15/2047     285,000 312,827
Cuyahoga County, OH, Hospital Rev. (Metrohealth System), 5.25%, 2/15/2047     70,000 80,379
Cuyahoga County, OH, Hospital Rev. (Metrohealth System), 5%, 2/15/2057     150,000 167,130
Cuyahoga County, OH, Hospital Rev. (Metrohealth System), 5.5%, 2/15/2057     770,000 891,144
Darke County, OH, Hospital Facilities Rev. (Wayne Healthcare Project), “A”, 4%, 9/01/2040     30,000 30,912
Darke County, OH, Hospital Facilities Rev. (Wayne Healthcare Project), “A”, 4%, 9/01/2045     50,000 50,848
Darke County, OH, Hospital Facilities Rev. (Wayne Healthcare Project), “A”, 5%, 9/01/2049     65,000 71,683
Franklin County, OH, Health Care Facilities Improvement Rev. (Friendship Village of Dublin, Inc.), 5%, 11/15/2034     120,000 132,331
Franklin County, OH, Health Care Facilities Improvement Rev. (Friendship Village of Dublin, Inc.), 5%, 11/15/2044     195,000 212,131
Franklin County, OH, Hospital Facilities Rev. (OhioHealth Corp.), “A”, 4%, 5/15/2047     235,000 258,899
Gallia County, OH, Hospital Facilities Rev. (Holzer Health Systems), “A”, 8%, 7/01/2042     710,000 776,768
Lake County, OH, Hospital Facilities Rev., Unrefunded Balance, “C”, 5.625%, 8/15/2029     70,000 70,216
Lucas County, OH, Hospital Rev. (Promedica Healthcare), “A”, 5.25%, 11/15/2048     70,000 79,807
Miami County, OH, Hospital Facilities Rev. (Kettering Health), “A”, 5%, 8/01/2049     310,000 370,379
Middleburg Heights, OH, Hospital Facilities Improvement Rev. (Southwest General Health Center Project), “A”, 4%, 8/01/2041     130,000 140,998
Middleburg Heights, OH, Hospital Facilities Improvement Rev. (Southwest General Health Center Project), “A”, 4%, 8/01/2047     70,000 78,188
Montgomery County, OH, Hospital Facilities Improvement and Refunding Rev. (Kettering Health Network Obligated Group Project), 4%, 8/01/2041     15,000 17,217
Ohio Air Quality Development Authority, Facilities Rev. (Pratt Paper LLC Project), 3.75%, 1/15/2028 (n)     100,000 110,311
Ohio Air Quality Development Authority, Facilities Rev. (Pratt Paper LLC Project), 4.25%, 1/15/2038 (n)     100,000 110,449
Ohio Air Quality Development Authority, Facilities Rev. (Pratt Paper LLC Project), 4.5%, 1/15/2048 (n)     125,000 138,770
        $6,528,903
Oklahoma - 0.8%
Catoosa, OK, Industrial Authority Sales Tax Rev., 4%, 10/01/2028   $ 25,000 $25,227
Norman, OK, Regional Hospital Authority Rev., 5%, 9/01/2045     40,000 47,596
Oklahoma Development Finance Authority, Health System Rev. (OU Medicine Project), “B”, 5%, 8/15/2029     30,000 36,221
Oklahoma Development Finance Authority, Health System Rev. (OU Medicine Project), “B”, 5%, 8/15/2033     155,000 183,670
Oklahoma Development Finance Authority, Health System Rev. (OU Medicine Project), “B”, 5%, 8/15/2038     215,000 251,161
15

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Oklahoma - continued
Oklahoma Development Finance Authority, Health System Rev. (OU Medicine Project), “B”, 5.25%, 8/15/2043   $ 195,000 $227,407
Oklahoma Development Finance Authority, Health System Rev. (OU Medicine Project), “B”, 5.25%, 8/15/2048     215,000 249,105
Tulsa, OK, Airport Improvement Trust Rev., “A”, 5%, 6/01/2045     55,000 61,156
        $1,081,543
Oregon - 0.6%
Forest Grove, OR, Campus Improvement Rev. (Pacific University Project), “A”, 4.5%, 5/01/2029   $ 90,000 $92,537
Forest Grove, OR, Campus Improvement Rev. (Pacific University Project), “A”, 5%, 5/01/2036     90,000 98,392
Forest Grove, OR, Campus Improvement Rev. (Pacific University Project), “A”, 5%, 5/01/2040     110,000 112,955
Medford, OR, Hospital Facility Authority Rev. (Asante Projects), “A”, 4%, 8/15/2050     370,000 416,302
Oregon Facilities Authority Rev. (Samaritan Health Services Project), “A”, 5%, 10/01/2040     30,000 36,972
        $757,158
Pennsylvania - 12.1%
Allentown, PA, Neighborhood Improvement Zone Development Authority Tax Rev. (City Center Project), 5%, 5/01/2042 (n)   $ 170,000 $196,505
Allentown, PA, Neighborhood Improvement Zone Development Authority Tax Rev. (City Center Refunding Project), 5%, 5/01/2042 (n)     150,000 169,920
Allentown, PA, Neighborhood Improvement Zone Development Authority Tax Rev., “A”, 5%, 5/01/2035     100,000 103,985
Allentown, PA, Neighborhood Improvement Zone Development Authority Tax Rev., “A”, 5%, 5/01/2042     420,000 435,221
Berks County, PA, Industrial Development Authority Health System Rev. (Tower Health Project), 5%, 11/01/2034     235,000 262,577
Berks County, PA, Reading School District, AGM, 5%, 3/01/2036     25,000 29,997
Berks County, PA, Reading School District, BAM, 4%, 4/01/2044     45,000 50,896
Blythe Township, PA, Solid Waste Authority Rev., 7.75%, 12/01/2037     250,000 285,400
Bucks County, PA, Industrial Development Authority, Hospital Rev. (St. Luke's University Health Network Project), 4%, 8/15/2044     45,000 49,614
Bucks County, PA, Industrial Development Authority, Hospital Rev. (St. Luke's University Health Network Project), 4%, 8/15/2050     230,000 252,096
Chester County, PA, Health & Education Facilities Authority Rev. (Simpson Senior Services Project), 5%, 12/01/2051     95,000 96,579
Chester County, PA, Health & Education Facilities Authority Rev. (Simpson Senior Services Project), “A”, 5%, 12/01/2030     45,000 47,124
Chester County, PA, Health & Education Facilities Authority Rev. (Simpson Senior Services Project), “A”, 5.25%, 12/01/2045     100,000 102,651
Commonwealth of Pennsylvania, Tobacco Master Settlement Financing Authority Rev., 5%, 6/01/2032     65,000 79,941
Commonwealth of Pennsylvania, Tobacco Master Settlement Financing Authority Rev., 5%, 6/01/2033     60,000 73,425
Commonwealth of Pennsylvania, Tobacco Master Settlement Financing Authority Rev., 5%, 6/01/2034     30,000 36,572
Doylestown, PA, Hospital Rev., “A”, 4%, 7/01/2045     30,000 31,025
East Hempfield Township, PA, Industrial Development Authority Rev. (Student Services, Inc., Student Housing Project at Millersville University of Pennsylvania), 5%, 7/01/2030     25,000 25,773
East Hempfield Township, PA, Industrial Development Authority Rev. (Student Services, Inc., Student Housing Project at Millersville University of Pennsylvania), 5%, 7/01/2035     35,000 35,943
East Hempfield Township, PA, Industrial Development Authority Rev. (Student Services, Inc., Student Housing Project at Millersville University of Pennsylvania), 5%, 7/01/2039     40,000 40,746
East Hempfield Township, PA, Industrial Development Authority Rev. (Student Services, Inc., Student Housing Project at Millersville University of Pennsylvania), 5%, 7/01/2046     20,000 20,342
Franklin County, PA, Industrial Development Authority Rev. (Menno-Haven, Inc. Project), 5%, 12/01/2038     125,000 134,987
Franklin County, PA, Industrial Development Authority Rev. (Menno-Haven, Inc. Project), 5%, 12/01/2043     155,000 165,549
Franklin County, PA, Industrial Development Authority Rev. (Menno-Haven, Inc. Project), 5%, 12/01/2048     160,000 169,357
Franklin County, PA, Industrial Development Authority Rev. (Menno-Haven, Inc. Project), 5%, 12/01/2053     150,000 158,259
Geisinger, PA, Geisinger Authority Health System Rev., “A”, 4%, 4/01/2050     1,010,000 1,140,856
Lehigh County, PA, Hospital Authority Rev. (Lehigh Valley Health Network), “A”, 4%, 7/01/2049     350,000 389,725
Lehigh County, PA, Water & Sewer Authority Rev. (Allentown Concession), Capital Appreciation, “B”, 0%, 12/01/2037     955,000 599,177
Lehigh County, PA, Water & Sewer Authority Rev., “A”, 5%, 12/01/2043 (Prerefunded 12/01/2023)     605,000 681,666
Lehigh County, PA, Water & Sewer Authority Rev., “A”, 5%, 12/01/2043     530,000 587,187
Luzerne County, PA, Wilkes-Barre Area School District, General Obligation, BAM, 5%, 4/15/2059     50,000 60,038
Montgomery County, PA, Higher Education & Health Authority Rev. (Thomas Jefferson University), 4%, 9/01/2044     100,000 111,532
Montgomery County, PA, Higher Education & Health Authority Rev. (Thomas Jefferson University), 4%, 9/01/2049     100,000 110,809
Montgomery County, PA, Higher Education & Health Authority Rev. (Thomas Jefferson University), “A”, 5%, 9/01/2048     330,000 388,525
Montgomery County, PA, Industrial Development Authority Retirement Communities Rev. (Acts Retirement-Life Communities, Inc. Obligated Group), 5%, 11/15/2028 (Prerefunded 5/15/2022)     350,000 370,433
Montgomery County, PA, Industrial Development Authority Retirement Communities Rev. (Acts Retirement-Life Communities, Inc. Obligated Group), “C”, 5%, 11/15/2045     120,000 143,021
16

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Pennsylvania - continued
Montgomery County, PA, Industrial Development Authority Rev. (Whitemarsh Continuing Care Retirement Community Project), 5.375%, 1/01/2050   $ 935,000 $975,794
Moon Industrial Development Authority Rev. (Baptist Homes Society), 6.125%, 7/01/2050     260,000 275,493
Pennsylvania Economic Development Financing Authority Private Activity Rev. (Pennsylvania Rapid Bridge Replacement Project), 5%, 12/31/2030     100,000 117,982
Pennsylvania Higher Educational Facilities Authority Rev. (Drexel University), “A”, AGM, 4%, 5/01/2050     705,000 782,353
Pennsylvania Public School Building Authority, School Lease Rev. (School District of Philadelphia Project), “A”, AGM, 5%, 6/01/2032     510,000 616,478
Pennsylvania Turnpike Commission Rev., ”A“, 4%, 12/01/2050     395,000 442,827
Pennsylvania Turnpike Commission Subordinate Rev., “A”, AGM, 4%, 12/01/2049     895,000 1,021,061
Philadelphia, PA, Authority for Industrial Development Rev. (MaST Charter School Project), “A”, 5.625%, 8/01/2036     100,000 111,019
Philadelphia, PA, Authority for Industrial Development Rev. (MaST Charter School Project), “A”, 5.75%, 8/01/2046     125,000 137,464
Philadelphia, PA, Authority for Industrial Development Rev. (MaST Charter School Project), “A”, 5.375%, 8/01/2051     120,000 132,929
Philadelphia, PA, Authority for Industrial Development Rev. (MaST Charter School Project), “B”, 6%, 8/01/2051     165,000 183,031
Philadelphia, PA, Authority for Industrial Development Rev. (Tacony Academy Charter School Project), 6.875%, 6/15/2033     100,000 110,861
Philadelphia, PA, Authority for Industrial Development Rev. (Tacony Academy Charter School Project), 7.375%, 6/15/2043     110,000 122,228
Philadelphia, PA, Authority for Industrial Development Rev. (Tacony Academy Charter School Project), “A-1”, 7%, 6/15/2043     140,000 154,400
Philadelphia, PA, Authority for Industrial Development, Multi-Family Housing Rev. (University Square Apartment Project-Section 8), “III”, 5.25%, 12/01/2047 (n)     145,000 152,844
Philadelphia, PA, Authority for Industrial Development, Multi-Family Housing Rev. (University Square Apartment Project-Section 8), “III”, 5.5%, 12/01/2058 (n)     215,000 227,659
Philadelphia, PA, Authority for Industrial Development, Senior Living Facilities Rev. (Wesley Enhanced Living Obligated Group), “A”, 5%, 7/01/2037     100,000 104,741
Philadelphia, PA, Authority for Industrial Development, Senior Living Facilities Rev. (Wesley Enhanced Living Obligated Group), “A”, 5%, 7/01/2042     125,000 129,167
Philadelphia, PA, Authority for Industrial Development, Senior Living Facilities Rev. (Wesley Enhanced Living Obligated Group), “A”, 5%, 7/01/2049     175,000 179,569
Philadelphia, PA, Gas Works Rev. (1998 General Ordinance), “15”, 5%, 8/01/2042     475,000 556,809
Philadelphia, PA, School District, “A”, 5%, 9/01/2033     20,000 24,772
Philadelphia, PA, School District, “A”, 5%, 9/01/2035     70,000 85,879
Philadelphia, PA, School District, “A”, 5%, 9/01/2036     25,000 30,592
Philadelphia, PA, School District, “A”, 5%, 9/01/2037     25,000 30,503
Philadelphia, PA, School District, “A”, 5%, 9/01/2038     25,000 30,425
Philadelphia, PA, School District, “A”, 4%, 9/01/2039     150,000 169,737
Philadelphia, PA, School District, “B”, 5%, 9/01/2043     70,000 83,756
Pittsburgh, PA, Urban Redevelopment Authority Rev., “C”, GNMA, 4.8%, 4/01/2028     490,000 492,323
Pittsburgh, PA, Water & Sewer Authority Rev., “A”, AGM, 5%, 9/01/2032     40,000 54,281
Pittsburgh, PA, Water & Sewer Authority Rev., “A”, AGM, 5%, 9/01/2033     30,000 41,312
Pittsburgh, PA, Water & Sewer Authority Rev., “A”, AGM, 4%, 9/01/2035     15,000 17,788
Pittsburgh, PA, Water & Sewer Authority Rev., “A”, AGM, 5%, 9/01/2044     105,000 128,712
Scranton-Lackawanna, PA, Health and Welfare Authority, University Rev. (Marywood University Project), 5%, 6/01/2046     445,000 466,493
Washington County, PA, Canon-McMillan School District, BAM, 4%, 6/01/2044     95,000 106,014
Washington County, PA, Canon-McMillan School District, BAM, 4%, 6/01/2046     150,000 166,720
Washington County, PA, Canon-McMillan School District, BAM, 4%, 6/01/2048     100,000 110,836
Washington County, PA, Redevelopment Authority Refunding Rev. (Victory Centre Tax Increment Financing Project), 4%, 7/01/2023     15,000 15,283
Washington County, PA, Redevelopment Authority Refunding Rev. (Victory Centre Tax Increment Financing Project), 5%, 7/01/2035     15,000 16,148
West Shore, PA, Area Authority Rev. (Messiah Village Project), “A”, 5%, 7/01/2030     30,000 32,969
West Shore, PA, Area Authority Rev. (Messiah Village Project), “A”, 5%, 7/01/2035     35,000 38,000
        $16,314,705
Puerto Rico - 7.7%
Commonwealth of Puerto Rico Highway & Transportation Authority Rev., “A”, NPFG, 4.75%, 7/01/2038   $ 260,000 $263,115
Commonwealth of Puerto Rico Highway & Transportation Authority Rev., “D”, AGM, 5%, 7/01/2032     350,000 361,791
Commonwealth of Puerto Rico Highway & Transportation Authority Rev., “J”, NPFG, 5%, 7/01/2029     25,000 25,363
Commonwealth of Puerto Rico Highway & Transportation Authority Rev., “L”, AAC, 5.25%, 7/01/2038     795,000 902,842
Commonwealth of Puerto Rico Highway & Transportation Authority Rev., “N”, AAC, 5.25%, 7/01/2030     270,000 299,789
17

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Puerto Rico - continued
Commonwealth of Puerto Rico Highway & Transportation Authority Rev., “N”, AAC, 5.25%, 7/01/2031   $ 175,000 $194,922
Commonwealth of Puerto Rico Highway & Transportation Authority Rev., “N”, NPFG, 5.25%, 7/01/2033     95,000 106,922
Commonwealth of Puerto Rico Highway & Transportation Authority Rev., Unrefunded Balance, “A”, NPFG, 5%, 7/01/2038     35,000 35,563
Commonwealth of Puerto Rico, “A”, AGM, 5.375%, 7/01/2025     50,000 51,207
Commonwealth of Puerto Rico, Public Improvement, “A”, NPFG, 5.5%, 7/01/2021     30,000 30,270
Commonwealth of Puerto Rico, Public Improvement, “C-7”, NPFG, 6%, 7/01/2027     235,000 242,081
Puerto Rico Convention Center District Authority, Hotel Occupancy Tax Rev., “A”, AAC, 5%, 7/01/2031     470,000 477,581
Puerto Rico Electric Power Authority Rev., “NN”, NPFG, 5.25%, 7/01/2022     140,000 144,297
Puerto Rico Electric Power Authority Rev., “NN”, NPFG, 4.75%, 7/01/2033     25,000 25,299
Puerto Rico Electric Power Authority Rev., “PP”, NPFG, 5%, 7/01/2024     15,000 15,184
Puerto Rico Electric Power Authority Rev., “PP”, NPFG, 5%, 7/01/2025     15,000 15,195
Puerto Rico Electric Power Authority Rev., “RR”, NPFG, 5%, 7/01/2022     35,000 35,260
Puerto Rico Electric Power Authority Rev., “TT”, 5%, 7/01/2032 (a)(d)     995,000 895,500
Puerto Rico Electric Power Authority Rev., “TT”, NPFG, 5%, 7/01/2024     65,000 65,796
Puerto Rico Electric Power Authority Rev., “UU”, AGM, 5%, 7/01/2022     35,000 36,178
Puerto Rico Electric Power Authority Rev., “VV”, NPFG, 5.25%, 7/01/2026     50,000 54,326
Puerto Rico Electric Power Authority Rev., “VV”, NPFG, 5.25%, 7/01/2030     250,000 276,860
Puerto Rico Electric Power Authority Rev., “WW”, 5%, 7/01/2028 (a)(d)     845,000 760,500
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Control Facilities Financing Authority Rev. (Cogeneration Facilities - AES Puerto Rico Project), 6.625%, 6/01/2026     420,000 433,650
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Control Facilities Financing Authority, Higher Education Rev. (Ana G. Mendez University System Project), 5%, 3/01/2021     5,000 5,000
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Control Facilities Financing Authority, Higher Education Rev. (Ana G. Mendez University System Project), 5%, 4/01/2021     50,000 50,039
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Control Facilities Financing Authority, Higher Education Rev. (Ana G. Mendez University System Project), 5.375%, 12/01/2021     10,000 9,990
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Control Facilities Financing Authority, Higher Education Rev. (Ana G. Mendez University System Project), 5%, 4/01/2022     60,000 60,807
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Control Facilities Financing Authority, Higher Education Rev. (Ana G. Mendez University System Project), 5%, 3/01/2026     10,000 9,989
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Control Facilities Financing Authority, Higher Education Rev. (Ana G. Mendez University System Project), 5%, 4/01/2027     190,000 192,329
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Control Facilities Financing Authority, Higher Education Rev. (Ana G. Mendez University System Project), 5.5%, 12/01/2031     65,000 64,921
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Control Facilities Financing Authority, Higher Education Rev. (Ana G. Mendez University System Project), 5.125%, 4/01/2032     75,000 75,994
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Control Facilities Financing Authority, Higher Education Rev. (Ana G. Mendez University System Project), 5%, 3/01/2036     65,000 64,923
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Control Facilities Financing Authority, Higher Education Rev. (Ana G. Mendez University System Project), 5.375%, 4/01/2042     55,000 55,825
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Control Facilities Financing Authority, Higher Education Rev. (University of Sacred Heart), 4.375%, 10/01/2031     45,000 45,296
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Control Facilities Financing Authority, Higher Education Rev. (University of Sacred Heart), 5%, 10/01/2042     70,000 71,050
Puerto Rico Infrastructure Financing Authority Special Tax Rev., “C”, AAC, 5.5%, 7/01/2023     310,000 329,666
Puerto Rico Infrastructure Financing Authority Special Tax Rev., “C”, AAC, 5.5%, 7/01/2024     400,000 432,700
Puerto Rico Infrastructure Financing Authority Special Tax Rev., “C”, AAC, 5.5%, 7/01/2025     60,000 65,789
Puerto Rico Infrastructure Financing Authority Special Tax Rev., “C”, AAC, 5.5%, 7/01/2028     70,000 78,270
Puerto Rico Municipal Finance Agency, “A”, AGM, 5%, 8/01/2027     20,000 20,674
Puerto Rico Public Buildings Authority Government Facilities Rev., “I”, AGM, 5%, 7/01/2036     45,000 46,516
Puerto Rico Public Buildings Authority Government Facilities Rev., “M-2”, AAC, 10%, 7/01/2035     390,000 410,514
Puerto Rico Public Buildings Authority Government Facilities Rev., “M-3”, NPFG, 6%, 7/01/2027     100,000 103,013
Puerto Rico Public Buildings Authority Government Facilities Rev., “M-3”, NPFG, 6%, 7/01/2028     35,000 36,083
Puerto Rico Public Finance Corp., “E”, ETM, 6%, 8/01/2026     80,000 101,221
Puerto Rico Sales Tax Financing Corp., Restructured Sales Tax Rev., “2019A-1”, 4.55%, 7/01/2040     42,000 45,677
Puerto Rico Sales Tax Financing Corp., Restructured Sales Tax Rev., “2019A-1”, 5%, 7/01/2058     636,000 702,805
Puerto Rico Sales Tax Financing Corp., Restructured Sales Tax Rev., “2019A-2”, 4.536%, 7/01/2053     3,000 3,225
Puerto Rico Sales Tax Financing Corp., Restructured Sales Tax Rev., “2019A-2”, 4.784%, 7/01/2058     69,000 75,284
18

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Puerto Rico - continued
Puerto Rico Sales Tax Financing Corp., Restructured Sales Tax Rev., Capital Appreciation, “2019A-1”, 0%, 7/01/2027   $ 74,000 $65,049
Puerto Rico Sales Tax Financing Corp., Restructured Sales Tax Rev., Capital Appreciation, “2019A-1”, 0%, 7/01/2031     803,000 615,612
Puerto Rico Sales Tax Financing Corp., Restructured Sales Tax Rev., Capital Appreciation, “2019A-1”, 0%, 7/01/2033     781,000 554,338
Puerto Rico Sales Tax Financing Corp., Restructured Sales Tax Rev., Capital Appreciation, “2019A-1”, 0%, 7/01/2046     473,000 144,828
University of Puerto Rico Rev., “P”, NPFG, 5%, 6/01/2025     40,000 40,520
        $10,327,438
Rhode Island - 0.2%
Rhode Island Student Loan Authority, Student Loan Rev., “A”, 3.5%, 12/01/2034   $ 85,000 $87,497
Rhode Island Student Loan Authority, Student Loan Rev., ”A“, 3.625%, 12/01/2037     190,000 194,739
        $282,236
South Carolina - 2.0%
Richland County, SC, Environmental Improvement Rev. (International Paper), “A”, 3.875%, 4/01/2023   $ 525,000 $558,689
South Carolina Jobs & Economic Development Authority, Health Facilities Rev. (Lutheran Homes of South Carolina, Inc.), 5.125%, 5/01/2048     40,000 40,475
South Carolina Jobs & Economic Development Authority, Hospital Rev. (Prisma Health Obligated Group), “A”, 5%, 5/01/2048     395,000 457,528
South Carolina Jobs & Economic Development Authority, Residential Care Facilities Rev. (South Carolina Episcopal Home at Still Hopes), 5%, 4/01/2047     120,000 128,252
South Carolina Jobs & Economic Development Authority, Residential Care Facilities Rev. (South Carolina Episcopal Home at Still Hopes), 5%, 4/01/2052     115,000 122,772
South Carolina Public Service Authority Rev., “A”, 5.125%, 12/01/2043     280,000 309,319
South Carolina Public Service Authority Rev., “B”, 5.125%, 12/01/2043     675,000 745,679
Spartanburg County, SC, Regional Health Services District Hospital Rev., “A”, 5%, 4/15/2048     245,000 285,310
Spartanburg County, SC, Regional Health Services District Hospital Rev., “A”, AGM, 4%, 4/15/2045     45,000 50,476
        $2,698,500
Tennessee - 3.1%
Chattanooga, TN, Health, Educational & Housing Facility Board Rev. (Catholic Health Initiatives), “A”, 5.25%, 1/01/2045 (Prerefunded 1/01/2023)   $ 1,035,000 $1,127,250
Chattanooga, TN, Health, Educational & Housing Facility Board Rev. (CommonSpirit Health), “A-1”, 4%, 8/01/2044     15,000 16,635
Chattanooga, TN, Health, Educational & Housing Facility Board Rev. (CommonSpirit Health), “A-2”, 5%, 8/01/2044     20,000 24,207
Chattanooga, TN, Health, Educational & Housing Facility Board Rev. (CommonSpirit Health), “A-2”, 5%, 8/01/2049     10,000 12,043
Knox County, TN, Health, Educational & Housing Facility Board Rev. (University Health Systems, Inc.), 5%, 4/01/2030     45,000 52,337
Knox County, TN, Health, Educational & Housing Facility Board Rev. (University Health Systems, Inc.), 5%, 4/01/2031     50,000 57,943
Knox County, TN, Health, Educational & Housing Facility Board Rev. (University Health Systems, Inc.), 5%, 4/01/2036     65,000 74,245
Metropolitan Government of Nashville & Davidson County, TN, Health & Educational Facilities Board Rev. (Vanderbilt University Medical Center), “A”, 5%, 7/01/2035     205,000 241,748
Metropolitan Government of Nashville & Davidson County, TN, Health & Educational Facilities Board Rev., Refunding & Improvement (Trevecca Nazarene University Project), 5%, 10/01/2034     10,000 11,626
Metropolitan Government of Nashville & Davidson County, TN, Health & Educational Facilities Board Rev., Refunding & Improvement (Trevecca Nazarene University Project), 5%, 10/01/2039     10,000 11,462
Tennessee Energy Acquisition Corp., Gas Rev., “A”, 5.25%, 9/01/2021     1,710,000 1,751,758
Tennessee Energy Acquisition Corp., Gas Rev., “A”, 5.25%, 9/01/2022     270,000 289,286
Tennessee Energy Acquisition Corp., Gas Rev., “A”, 5.25%, 9/01/2026     165,000 200,389
Tennessee Energy Acquisition Corp., Gas Rev., “C”, 5%, 2/01/2025     240,000 276,014
        $4,146,943
Texas - 8.8%
Arlington, TX, Higher Education Finance Corp. Education Rev. (Newman International Academy), “A”, 5.375%, 8/15/2036   $ 40,000 $43,424
Arlington, TX, Higher Education Finance Corp. Education Rev. (Newman International Academy), “A”, 5.5%, 8/15/2046     185,000 199,127
Austin, TX, Convention Center (Convention Enterprises, Inc.), “A”, 5%, 1/01/2029     35,000 39,167
Austin, TX, Convention Center (Convention Enterprises, Inc.), “A”, 5%, 1/01/2031     50,000 55,233
Austin, TX, Convention Center (Convention Enterprises, Inc.), “A”, 5%, 1/01/2034     10,000 9,917
Austin, TX, Convention Center (Convention Enterprises, Inc.), “B”, 5%, 1/01/2026     25,000 25,944
Austin, TX, Convention Center (Convention Enterprises, Inc.), “B”, 5%, 1/01/2028     15,000 15,394
Austin, TX, Convention Center (Convention Enterprises, Inc.), “B”, 5%, 1/01/2030     25,000 25,211
19

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Texas - continued
Central Texas Regional Mobility Authority Senior Lien Rev., “A”, 5%, 1/01/2045   $ 90,000 $101,422
Clifton, TX, Higher Education Finance Corp. Rev. (Idea Public Schools), 6%, 8/15/2033     105,000 115,704
Clifton, TX, Higher Education Finance Corp. Rev. (Idea Public Schools), 5.75%, 8/15/2041 (Prerefunded 8/15/2021)     75,000 76,872
Clifton, TX, Higher Education Finance Corp. Rev. (Idea Public Schools), 5%, 8/15/2042     410,000 425,035
Clifton, TX, Higher Education Finance Corp. Rev. (Idea Public Schools), 6%, 8/15/2043     165,000 180,070
Dallas and Fort Worth, TX, International Airport Rev., “B”, 5%, 11/01/2044     370,000 395,508
Dallas, TX, Civic Center Convention Complex Rev., AGM, 5.25%, 8/15/2034     845,000 847,966
Decatur, TX, Hospital Authority Rev. (Wise Regional Health System), “A”, 5.25%, 9/01/2044     100,000 106,337
Gulf Coast, TX, Industrial Development Authority Rev. (CITGO Petroleum Corp.), 4.875%, 5/01/2025     115,000 116,558
Gulf Coast, TX, Industrial Development Authority Rev. (CITGO Petroleum Corp.), 8%, 4/01/2028     375,000 375,439
Harris County, TX, Cultural Education Facilities Finance Corp., Hospital Rev. (Texas Children's Hospital), “A”, 4%, 10/01/2035     85,000 99,647
Harris County, TX, Cultural Education Facilities Finance Corp., Hospital Rev. (Texas Children's Hospital), “A”, 4%, 10/01/2036     155,000 181,035
Harris County, TX, Cultural Education Facilities Finance Corp., Hospital Rev. (Texas Children's Hospital), “A”, 4%, 10/01/2037     210,000 244,469
Harris County, TX, Cultural Education Facilities Finance Corp., Hospital Rev. (Texas Children's Hospital), “A”, 4%, 10/01/2038     175,000 203,124
Harris County-Houston, TX, Sports Authority Rev., “C”, 5%, 11/15/2031     110,000 119,100
Harris County-Houston, TX, Sports Authority Rev., “C”, 5%, 11/15/2032     20,000 21,608
Harris County-Houston, TX, Sports Authority Rev., “C”, 5%, 11/15/2033     40,000 43,130
Harris County-Houston, TX, Sports Authority Rev., Capital Appreciation, “A”, AGM, 0%, 11/15/2041     70,000 30,264
Harris County-Houston, TX, Sports Authority Rev., Capital Appreciation, “A”, AGM, 0%, 11/15/2046     175,000 58,254
Houston, TX, Airport System Rev., Special Facilities Rev. (Continental Airlines, Inc.), 6.5%, 7/15/2030     445,000 457,585
Houston, TX, Airport System Rev., Special Facilities Rev. (United Airlines, Inc. Terminal E Project), 4.75%, 7/01/2024     310,000 324,796
Houston, TX, Airport System Rev., Special Facilities Rev. (United Airlines, Inc. Terminal Improvement Projects), “B-1”, 5%, 7/15/2030     770,000 850,157
Houston, TX, Airport System Rev., Subordinate Lien, “A”, 5%, 7/01/2031 (Prerefunded 7/01/2022)     150,000 159,167
Houston, TX, Industrial Development Corp. (United Parcel Service, Inc.), 6%, 3/01/2023     140,000 140,414
Mission, TX, Economic Development Corp. (NatGasoline Project), 4.625%, 10/01/2031 (n)     180,000 191,696
New Hope, TX, Cultural Education Facilities Finance Corp., Capital Improvement Rev. (CHF - Collegiate Housing Denton LLC - Texas Woman's University Housing Project), “A-1”, AGM, 5%, 7/01/2038     20,000 23,361
New Hope, TX, Cultural Education Facilities Finance Corp., Capital Improvement Rev. (CHF - Collegiate Housing Denton LLC - Texas Woman's University Housing Project), “A-1”, AGM, 5%, 7/01/2048     90,000 103,444
New Hope, TX, Cultural Education Facilities Finance Corp., Capital Improvement Rev. (CHF - Collegiate Housing Denton LLC - Texas Woman's University Housing Project), “A-1”, AGM, 5%, 7/01/2058     80,000 91,302
New Hope, TX, Cultural Education Facilities Finance Corp., Education Rev. (Beta Academy), “A”, 5%, 8/15/2039 (n)     50,000 52,336
New Hope, TX, Cultural Education Facilities Finance Corp., Education Rev. (Beta Academy), “A”, 5%, 8/15/2049 (n)     55,000 57,131
New Hope, TX, Cultural Education Facilities Finance Corp., Retirement Facility Rev. (MRC Senior Living - Langford Project), “A”, 5%, 11/15/2026     15,000 14,904
New Hope, TX, Cultural Education Facilities Finance Corp., Retirement Facility Rev. (MRC Senior Living - Langford Project), “A”, 5.375%, 11/15/2036     20,000 18,470
New Hope, TX, Cultural Education Facilities Finance Corp., Retirement Facility Rev. (MRC Senior Living - Langford Project), “A”, 5.5%, 11/15/2046     35,000 30,810
New Hope, TX, Cultural Education Facilities Finance Corp., Retirement Facility Rev. (MRC Senior Living - Langford Project), “A”, 5.5%, 11/15/2052     45,000 38,610
New Hope, TX, Cultural Education Facilities Finance Corp., Retirement Facility Rev. (Wesleyan Homes, Inc. Project), 5.5%, 1/01/2035     75,000 78,710
New Hope, TX, Cultural Education Facilities Finance Corp., Retirement Facility Rev. (Wesleyan Homes, Inc. Project), 5.5%, 1/01/2043     80,000 83,094
New Hope, TX, Cultural Education Facilities Finance Corp., Retirement Facility Rev. (Wesleyan Homes, Inc. Project), 5.5%, 1/01/2049     80,000 82,810
New Hope, TX, Cultural Education Facilities Finance Corp., Senior Living Rev. (Cardinal Bay, Inc. - Village on the Park/Carriage Inn Project), “A-1”, 5%, 7/01/2031     15,000 15,480
New Hope, TX, Cultural Education Facilities Finance Corp., Senior Living Rev. (Cardinal Bay, Inc. - Village on the Park/Carriage Inn Project), “A-1”, 4%, 7/01/2036     70,000 65,339
New Hope, TX, Cultural Education Facilities Finance Corp., Student Housing Rev. (CHF - Collegiate Housing Stephenville III LLC - Tarleton State University Project), 5%, 4/01/2030 (Prerefunded 4/01/2025)     25,000 29,461
New Hope, TX, Cultural Education Facilities Finance Corp., Student Housing Rev. (CHF - Collegiate Housing Stephenville III LLC - Tarleton State University Project), 5%, 4/01/2035 (Prerefunded 4/01/2025)     30,000 35,353
New Hope, TX, Cultural Education Facilities Finance Corp., Student Housing Rev. (CHF - Collegiate Housing Stephenville III LLC - Tarleton State University Project), 5%, 4/01/2047 (Prerefunded 4/01/2025)     65,000 76,598
20

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Texas - continued
Newark, TX, Higher Education Finance Corp. Rev. (A+ Charter Schools, Inc.), “A”, 5.5%, 8/15/2035 (n)   $ 90,000 $100,244
Newark, TX, Higher Education Finance Corp. Rev. (A+ Charter Schools, Inc.), “A”, 5.75%, 8/15/2045 (n)     110,000 121,532
Newark, TX, Higher Education Finance Corp. Rev. (Austin Achieve Public Schools, Inc.), “A”, 5.25%, 6/15/2048     65,000 67,103
North Texas Education Finance Corp., Education Rev. (Uplift Education), “A”, 5.125%, 12/01/2042 (Prerefunded 6/01/2022)     170,000 180,336
Port Beaumont, TX, Navigation District Facility Rev. (Jefferson Gulf Coast Energy Project), “A”, 3.625%, 1/01/2035 (n)     100,000 102,462
Port Beaumont, TX, Navigation District Facility Rev. (Jefferson Gulf Coast Energy Project), “A”, 4%, 1/01/2050 (n)     370,000 380,445
Port Beaumont, TX, Navigation District Facility Rev. (Jefferson Gulf Coast Energy Project), “B”, 6%, 1/01/2025 (n)     130,000 133,784
Red River, TX, Education Finance Corp., Higher Education Rev. (Houston Baptist University Project), 5.5%, 10/01/2046     225,000 252,682
Red River, TX, Health Facilities Development Corp., Retirement Facilities Rev. (MRC Crossings Project), “A”, 7.5%, 11/15/2034     100,000 108,767
Red River, TX, Health Facilities Development Corp., Retirement Facilities Rev. (MRC Crossings Project), “A”, 7.75%, 11/15/2044     185,000 200,294
Red River, TX, Health Facilities Development Corp., Retirement Facilities Rev. (MRC Crossings Project), “A”, 8%, 11/15/2049     135,000 146,999
Tarrant County, TX, Cultural Education Facilities Finance Corp. Retirement Facility Rev. (Barton Creek Senior Living Center, Inc., Querencia Project), 5%, 11/15/2030     80,000 88,557
Tarrant County, TX, Cultural Education Facilities Finance Corp. Retirement Facility Rev. (Barton Creek Senior Living Center, Inc., Querencia Project), 5%, 11/15/2035     100,000 109,258
Tarrant County, TX, Cultural Education Facilities Finance Corp. Retirement Facility Rev. (Barton Creek Senior Living Center, Inc., Querencia Project), 5%, 11/15/2040     110,000 119,176
Tarrant County, TX, Cultural Education Facilities Finance Corp. Retirement Facility Rev. (Northwest Senior Housing Corp. Edgemere Project), 5.25%, 11/15/2047     105,000 97,063
Tarrant County, TX, Cultural Education Facilities Finance Corp. Retirement Facility Rev. (Northwest Senior Housing Corp. Edgemere Project), “A”, 5%, 11/15/2045     115,000 103,130
Tarrant County, TX, Cultural Education Facilities Finance Corp. Retirement Facility Rev. (Northwest Senior Housing Corp. Edgemere Project), “B”, 5%, 11/15/2030     155,000 152,997
Tarrant County, TX, Cultural Education Facilities Finance Corp. Retirement Facility Rev. (Northwest Senior Housing Corp. Edgemere Project), “B”, 5%, 11/15/2036     345,000 326,639
Tarrant County, TX, Cultural Education Facilities Finance Corp. Retirement Facility Rev. (Stayton at Museum Way), 5.75%, 12/01/2054     817,290 870,758
Tarrant County, TX, Cultural Education Facilities Finance Corp. Retirement Facility Rev. (Trinity Terrace Project), “A-1”, 5%, 10/01/2044     60,000 65,106
Texas Private Activity Surface Transportation Corp., Senior Lien Rev. (NTE Mobility Partners Segments 3 LLC Segments 3A & 3B Facility), 7%, 12/31/2038     170,000 194,322
Texas Private Activity Surface Transportation Corp., Senior Lien Rev. (NTE Mobility Partners Segments 3 LLC Segments 3A & 3B Facility), 6.75%, 6/30/2043     135,000 153,307
Texas Transportation Commission, Central Texas Turnpike System Rev., Capital Appreciation, “B”, 0%, 8/15/2036     345,000 189,643
Texas Transportation Commission, State Highway 249 System Rev., “A”, 5%, 8/01/2057     240,000 275,088
Texas Transportation Commission, State Highway 249 System Rev., Capital Appreciation, “A”, 0%, 8/01/2037     25,000 13,700
Texas Transportation Commission, State Highway 249 System Rev., Capital Appreciation, “A”, 0%, 8/01/2038     20,000 10,374
Texas Transportation Commission, State Highway 249 System Rev., Capital Appreciation, “A”, 0%, 8/01/2039     20,000 9,830
Texas Transportation Commission, State Highway 249 System Rev., Capital Appreciation, “A”, 0%, 8/01/2040     20,000 9,279
Texas Transportation Commission, State Highway 249 System Rev., Capital Appreciation, “A”, 0%, 8/01/2041     45,000 19,728
Texas Transportation Commission, State Highway 249 System Rev., Capital Appreciation, “A”, 0%, 8/01/2042     60,000 24,867
Texas Transportation Commission, State Highway 249 System Rev., Capital Appreciation, “A”, 0%, 8/01/2043     50,000 19,632
        $11,823,089
Utah - 0.6%
Salt Lake City, UT, Salt Lake City International Airport Rev., “A”, 5%, 7/01/2043   $ 390,000 $460,282
Utah Charter School Finance Authority, Charter School Rev. (Da Vinci Academy of Science & Arts), 4%, 4/15/2047     245,000 256,654
Utah Charter School Finance Authority, Charter School Rev. (Reagan Academy Project), 5%, 2/15/2046 (n)     120,000 125,123
        $842,059
Vermont - 0.2%
Burlington, VT, Airport Rev., “A”, 4%, 7/01/2028   $ 90,000 $92,717
Vermont Student Assistance Corp., Education Loan Rev., “B”, 4.375%, 6/15/2046     145,000 148,548
        $241,265
21

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Virginia - 2.2%
Embrey Mill Community Development Authority, VA, Special Assessment Rev., 7.25%, 3/01/2043   $ 410,000 $428,995
Peninsula Town Center Community Development Authority, VA, Special Obligation Refunding, 5%, 9/01/2037 (n)     115,000 123,640
Peninsula Town Center Community Development Authority, VA, Special Obligation Refunding, 4.5%, 9/01/2045 (n)     145,000 151,322
Prince William County, VA, Cherry Hill Community Development Authority Rev. (Potomac Shores Project), 5.4%, 3/01/2045 (n)     100,000 103,555
Virginia College Building Authority, Educational Facilities Rev. (Marymount University Project), “B”, 5.25%, 7/01/2030 (n)     175,000 188,291
Virginia College Building Authority, Educational Facilities Rev. (Marymount University Project), “B”, 5.25%, 7/01/2035 (n)     175,000 185,969
Virginia Small Business Financing Authority Rev. (Elizabeth River Crossings Opco LLC Project), 6%, 1/01/2037     385,000 407,992
Virginia Small Business Financing Authority Rev. (Elizabeth River Crossings Opco LLC Project), 5.5%, 1/01/2042     755,000 787,654
Virginia Small Business Financing Authority Rev. (The Obligated Group of National Senior Campuses, Inc.), “A”, 4%, 1/01/2040     495,000 548,515
        $2,925,933
Washington - 2.4%
Grays Harbor County, WA, Public Hospital District No. 2, Limited Tax General Obligation Refunding, 5%, 12/15/2033   $ 115,000 $131,156
Grays Harbor County, WA, Public Hospital District No. 2, Limited Tax General Obligation Refunding, 5%, 12/15/2038     150,000 168,642
Grays Harbor County, WA, Public Hospital District No. 2, Limited Tax General Obligation Refunding, 5%, 12/15/2048     285,000 314,614
Kalispel Tribe Indians, WA, Priority District Rev., “A”, 5%, 1/01/2032 (n)     125,000 142,401
Kalispel Tribe Indians, WA, Priority District Rev., “A”, 5.25%, 1/01/2038 (n)     130,000 147,167
Washington Health Care Facilities Authority Rev. (Providence Health & Services), “A”, 5%, 10/01/2033     1,105,000 1,164,571
Washington Health Care Facilities Authority Rev. (Virginia Mason Medical Center), 5%, 8/15/2035     90,000 105,880
Washington Health Care Facilities Authority Rev. (Virginia Mason Medical Center), 5%, 8/15/2037     90,000 105,311
Washington Housing Finance Commission Nonprofit Housing Refunding Rev. (Hearthstone Project), “A”, 5%, 7/01/2048 (n)     145,000 148,203
Washington Housing Finance Commission Nonprofit Housing Refunding Rev. (Judson Park Project), 5%, 7/01/2048 (n)     100,000 106,776
Washington Housing Finance Commission Nonprofit Housing Rev. (Presbyterian Retirement Communities Northwest Projects), “A”, 5%, 1/01/2036 (n)     100,000 108,094
Washington Housing Finance Commission Nonprofit Housing Rev. (Presbyterian Retirement Communities Northwest Projects), “A”, 5%, 1/01/2046 (n)     105,000 112,160
Washington Housing Finance Commission Nonprofit Housing Rev. (Presbyterian Retirement Communities Northwest Projects), “A”, 5%, 1/01/2051 (n)     105,000 111,965
Washington Housing Finance Commission Nonprofit Housing Rev. (Wesley Homes at Lea Hill Project), 5%, 7/01/2041 (n)     100,000 103,057
Washington Housing Finance Commission Nonprofit Housing Rev. (Wesley Homes at Lea Hill Project), 5%, 7/01/2046 (n)     115,000 117,855
Washington Housing Finance Commission Nonprofit Housing Rev. (Wesley Homes at Lea Hill Project), 5%, 7/01/2051 (n)     165,000 168,704
        $3,256,556
West Virginia - 0.3%
West Virginia Hospital Finance Authority Hospital Improvement Rev. (Cabell Huntington Hospital Obligated Group), “A”, 5%, 1/01/2043   $ 305,000 $360,888
Wisconsin - 7.5%
Green Bay, WI, Redevelopment Authority, (Green Bay Packaging, Inc. Project), VRDN, 0.08%, 7/01/2047 (n)   $ 1,815,000 $1,815,000
Wisconsin Center District Junior Dedicated Tax Rev., Capital Appreciation, “D”, AGM, 0%, 12/15/2040     580,000 313,090
Wisconsin Center District Senior Dedicated Tax Rev., Capital Appreciation, “C”, AGM, 0%, 12/15/2040     250,000 135,217
Wisconsin Health & Educational Facilities Authority Refunding Rev. (American Baptist Homes), 5%, 8/01/2027     115,000 124,033
Wisconsin Health & Educational Facilities Authority Refunding Rev. (American Baptist Homes), 5%, 8/01/2032     105,000 111,870
Wisconsin Health & Educational Facilities Authority Refunding Rev. (American Baptist Homes), 5%, 8/01/2037     55,000 58,019
Wisconsin Health & Educational Facilities Authority Refunding Rev. (American Baptist Homes), 5%, 8/01/2039     55,000 57,892
Wisconsin Health & Educational Facilities Authority Rev. (Aspirusm, Inc. Obligated Group), 4%, 8/15/2048     1,020,000 1,109,984
Wisconsin Health & Educational Facilities Authority Rev. (Aurora Health Care, Inc.), “A”, 5%, 7/15/2026 (Prerefunded 7/15/2021)     200,000 203,558
Wisconsin Health & Educational Facilities Authority Rev. (Marshfield Clinic Health System, Inc.), “C”, 5%, 2/15/2047     45,000 50,789
Wisconsin Health & Educational Facilities Authority Rev. (Rogers Memorial Hospital, Inc.), “A”, 5%, 7/01/2038     20,000 23,111
Wisconsin Health & Educational Facilities Authority Rev. (Rogers Memorial Hospital, Inc.), “A”, 5%, 7/01/2044     20,000 22,868
Wisconsin Health & Educational Facilities Authority Rev. (Rogers Memorial Hospital, Inc.), “A”, 5%, 7/01/2049     95,000 108,190
Wisconsin Health & Educational Facilities Authority Rev. (St. John's Community, Inc.), “A”, 5%, 9/15/2040     20,000 20,975
Wisconsin Health & Educational Facilities Authority Rev. (St. John's Community, Inc.), “A”, 5%, 9/15/2045     30,000 31,335
Wisconsin Health & Educational Facilities Authority Rev. (St. John's Community, Inc.), “A”, 5%, 9/15/2050     115,000 119,974
Wisconsin Public Finance Authority Airport Facilities Rev. (Transportation Infrastructure Properties LLC), “B”, 5%, 7/01/2022     40,000 41,404
Wisconsin Public Finance Authority Airport Facilities Rev. (Transportation Infrastructure Properties LLC), “B”, 5.25%, 7/01/2028     1,445,000 1,510,719
Wisconsin Public Finance Authority Airport Facilities Rev. (Transportation Infrastructure Properties LLC), “B”, 5%, 7/01/2042     85,000 88,191
22

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Wisconsin - continued
Wisconsin Public Finance Authority Education Rev. (Mountain Island Charter School), 5%, 7/01/2037   $ 40,000 $42,862
Wisconsin Public Finance Authority Education Rev. (Mountain Island Charter School), 5%, 7/01/2047     55,000 58,386
Wisconsin Public Finance Authority Education Rev. (Pine Lake Preparatory), 4.95%, 3/01/2030 (n)     55,000 59,335
Wisconsin Public Finance Authority Education Rev. (Pine Lake Preparatory), 5.25%, 3/01/2035 (n)     55,000 59,199
Wisconsin Public Finance Authority Educational Facilities Rev. (Community School of Davidson Project), 5%, 10/01/2033 (n)     25,000 28,007
Wisconsin Public Finance Authority Educational Facilities Rev. (Community School of Davidson Project), 5%, 10/01/2048 (n)     125,000 135,911
Wisconsin Public Finance Authority Healthcare Facilities Rev. (Blue Ridge Healthcare), “A”, 4%, 1/01/2045     25,000 28,059
Wisconsin Public Finance Authority Healthcare Facility Rev. (Church Home of Hartford, Inc. Project), “A”, 5%, 9/01/2025 (n)     30,000 32,282
Wisconsin Public Finance Authority Healthcare Facility Rev. (Church Home of Hartford, Inc. Project), “A”, 5%, 9/01/2030 (n)     75,000 81,530
Wisconsin Public Finance Authority Healthcare Facility Rev. (Church Home of Hartford, Inc. Project), “A”, 5%, 9/01/2038 (n)     60,000 64,244
Wisconsin Public Finance Authority Hospital Rev. (WakeMed), “A”, 4%, 10/01/2049     1,020,000 1,105,894
Wisconsin Public Finance Authority Limited Obligation Grant Rev. (American Dream at Meadowlands Project), “A”, 6.25%, 8/01/2027 (n)     535,000 577,056
Wisconsin Public Finance Authority Limited Obligation PILOT Rev. (American Dream at Meadowlands Project), 6.5%, 12/01/2037 (n)     440,000 478,676
Wisconsin Public Finance Authority Limited Obligation PILOT Rev. (American Dream at Meadowlands Project), 7%, 12/01/2050     230,000 253,695
Wisconsin Public Finance Authority Rev. (Roseman University of Health Sciences Project), 5.75%, 4/01/2035     150,000 170,419
Wisconsin Public Finance Authority Senior Living Refunding Bonds Rev. (Mary's Woods at Marylhurst Project), “A”, 5.25%, 5/15/2037 (n)     45,000 48,370
Wisconsin Public Finance Authority Senior Living Refunding Bonds Rev. (Mary's Woods at Marylhurst Project), “A”, 5.25%, 5/15/2042 (n)     30,000 32,076
Wisconsin Public Finance Authority Senior Living Refunding Bonds Rev. (Mary's Woods at Marylhurst Project), “A”, 5.25%, 5/15/2047 (n)     145,000 154,453
Wisconsin Public Finance Authority Senior Living Refunding Bonds Rev. (Mary's Woods at Marylhurst Project), “A”, 5.25%, 5/15/2052 (n)     45,000 47,843
Wisconsin Public Finance Authority Senior Living Rev. (Rose Villa Project), “A”, 5.125%, 11/15/2029 (n)     110,000 117,532
Wisconsin Public Finance Authority Senior Living Rev. (Rose Villa Project), “A”, 5.5%, 11/15/2034 (n)     100,000 107,171
Wisconsin Public Finance Authority Senior Living Rev. (Rose Villa Project), “A”, 5.75%, 11/15/2044 (n)     95,000 101,641
Wisconsin Public Finance Authority Senior Living Rev. (Rose Villa Project), “A”, 6%, 11/15/2049 (n)     115,000 123,902
Wisconsin Public Finance Authority Student Housing Rev. (Beyond Boone LLC - Appalachian State University Project), “A”, AGM, 5%, 7/01/2044     20,000 23,566
Wisconsin Public Finance Authority Student Housing Rev. (Beyond Boone LLC - Appalachian State University Project), “A”, AGM, 5%, 7/01/2054     25,000 29,215
Wisconsin Public Finance Authority Student Housing Rev. (Beyond Boone LLC - Appalachian State University Project), “A”, AGM, 5%, 7/01/2058     35,000 40,859
Wisconsin Public Finance Authority Student Housing Rev. (Western Carolina University Project), 5.25%, 7/01/2047     190,000 204,430
        $10,152,832
Total Municipal Bonds   $200,585,220
Bonds – 0.1%
Consumer Services – 0.1%  
Toll Road Investors Partnership II LP, Capital Appreciation, “A”, NPFG, 0%, 2/15/2045  (n)   $ 25,195 $5,779
Toll Road Investors Partnership II LP, Capital Appreciation, “B”, NPFG, 0%, 2/15/2033  (n)     175,000 88,624
Total Bonds   $94,403
Investment Companies (h) - 5.1%
Money Market Funds – 5.1%  
MFS Institutional Money Market Portfolio, 0.07% (v)     6,873,798 $6,873,798
 
Other Assets, Less Liabilities - 1.6%   2,219,136
Variable Rate Municipal Term Preferred Shares (VMTPS), at liquidation value (issued by the fund) - (55.6)% (75,000,000)
Net assets applicable to common shares - 100.0%   $134,772,557
(a) Non-income producing security.
(d) In default.
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Portfolio of Investments (unaudited) – continued
(h) An affiliated issuer, which may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. At period end, the aggregate values of the fund's investments in affiliated issuers and in unaffiliated issuers were $6,873,798 and $200,679,623, respectively.
(n) Securities exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be sold in the ordinary course of business in transactions exempt from registration, normally to qualified institutional buyers. At period end, the aggregate value of these securities was $25,340,039, representing 18.8% of net assets applicable to common shares.
(v) Affiliated issuer that is available only to investment companies managed by MFS. The rate quoted for the MFS Institutional Money Market Portfolio is the annualized seven-day yield of the fund at period end.
(z) Restricted securities are not registered under the Securities Act of 1933 and are subject to legal restrictions on resale. These securities generally may be resold in transactions exempt from registration or to the public if the securities are subsequently registered. Disposal of these securities may involve time-consuming negotiations and prompt sale at an acceptable price may be difficult. The fund holds the following restricted securities:
Restricted Securities Acquisition
Date
Cost Value
California Pollution Control Financing Authority, Solid Waste Disposal Rev. (CalPlant I Project), 8%, 7/01/2039 5/25/17 $383,096 $250,250
Collier County, FL, Industrial Development Authority, Continuing Care Community Rev. (Arlington of Naples Project), “A”, 8.125%, 5/15/2044 12/16/13 485,000 295,850
Collier County, FL, Industrial Development Authority, Continuing Care Community Rev. (Arlington of Naples Project), “A”, 6.5%, 5/15/2049 6/30/15 100,000 61,000
Total Restricted Securities     $607,100
% of Net assets applicable to common shares     0.5%
The following abbreviations are used in this report and are defined:
AAC Ambac Assurance Corp.
AGM Assured Guaranty Municipal
BAM Build America Mutual
CALHF California Health Facility Construction Loan Insurance Program
COP Certificate of Participation
ETM Escrowed to Maturity
GNMA Government National Mortgage Assn.
NPFG National Public Finance Guarantee Corp.
VRDN Variable rate demand note that may be puttable to the issuer at the option of the holder. The stated interest rate, which generally resets either daily or weekly, represents the rate in effect at period end and may not be the current rate.
See attached supplemental information. For more information see notes to financial statements as disclosed in the most recent semiannual or annual report.
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Supplemental Information
2/28/21 (unaudited)
The fund is an investment company and accordingly follows the investment company accounting and reporting guidance of the Financial Accounting Standards Board (FASB) Accounting Standards Codification Topic 946 Financial Services - Investment Companies.
(1) Investment Valuations
Debt instruments and floating rate loans, including restricted debt instruments, are generally valued at an evaluated or composite bid as provided by a third-party pricing service.  Short-term instruments with a maturity at issuance of 60 days or less may be valued at amortized cost, which approximates market value. Open-end investment companies are generally valued at net asset value per share. Securities and other assets generally valued on the basis of information from a third-party pricing service may also be valued at a broker/dealer bid quotation. In determining values, third-party pricing services can utilize both transaction data and market information such as yield, quality, coupon rate, maturity, type of issue, trading characteristics, and other market data.
The Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund’s investments (including any fair valuation) to the adviser pursuant to valuation policies and procedures approved by the Board. If the adviser determines that reliable market quotations are not readily available, investments are valued at fair value as determined in good faith by the adviser in accordance with such procedures under the oversight of the Board of Trustees. Under the fund’s valuation policies and procedures, market quotations are not considered to be readily available for most types of debt instruments and floating rate loans and many types of derivatives. These investments are generally valued at fair value based on information from third-party pricing services. In addition, investments may be valued at fair value if the adviser determines that an investment’s value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund’s net asset value, or after the halt of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. The adviser generally relies on third-party pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund’s net asset value can differ depending on the source and method used to determine value. When fair valuation is used, the value of an investment used to determine the fund’s net asset value may differ from quoted or published prices for the same investment. There can be no assurance that the fund could obtain the fair value assigned to an investment if it were to sell the investment at the same time at which the fund determines its net asset value per share.
Various inputs are used in determining the value of the fund's assets or liabilities. These inputs are categorized into three broad levels. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment's level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The fund's assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment. Level 1 includes unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 includes other significant observable market-based inputs (including quoted prices for similar securities, interest rates, prepayment speed, and credit risk). Level 3 includes unobservable inputs, which may include the adviser's own assumptions in determining the fair value of investments. The following is a summary of the levels used as of February 28, 2021 in valuing the fund's assets or liabilities:
Financial Instruments Level 1 Level 2 Level 3 Total
Municipal Bonds $— $200,585,220 $— $200,585,220
U.S. Corporate Bonds 94,403 94,403
Mutual Funds 6,873,798 6,873,798
Total $6,873,798 $200,679,623 $— $207,553,421
For further information regarding security characteristics, see the Portfolio of Investments.
(2) Investments in Affiliated Issuers
An affiliated issuer may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. For the purposes of this report, the following were affiliated issuers:
Affiliated Issuers Beginning
Value
Purchases Sales
Proceeds
Realized
Gain
(Loss)
Change in
Unrealized
Appreciation or
Depreciation
Ending
Value
MFS Institutional Money Market Portfolio $1,431,282 $13,392,246 $7,949,730 $— $— $6,873,798
Affiliated Issuers Dividend
Income
Capital Gain
Distributions
MFS Institutional Money Market Portfolio $724 $—
25

Supplemental Information (unaudited) – continued
(3) Impacts of COVID-19
The pandemic related to the global spread of novel coronavirus disease (COVID-19), which was first detected in December 2019, has resulted in significant disruptions to global business activity and the global economy, as well as the economies of individual countries, the financial performance of individual companies and sectors, and the securities and commodities markets in general. Multiple surges in cases globally, the availability and widespread adoption of vaccines, and the emergence of variant strains of the virus continue to create uncertainty as to the future and long-term impacts resulting from the pandemic including impacts to the prices and liquidity of the fund's investments and the fund's performance.
26