| | | | | | | | |
Security | | Principal Amount (000’s omitted) | | | Value | |
Education — 9.2% | | | | | | | | |
California Infrastructure and Economic Development Bank, (The Colburn School), 1.29%, (SIFMA + 1.20%), 6/1/22 (Put Date), 8/1/37(1) | | $ | 20,000 | | | $ | 20,117,600 | |
Lehigh County General Purpose Authority, PA, (Muhlenberg College), 0.67%, (SIFMA + 0.58%), 11/1/24 (Put Date), 11/1/37(1) | | | 3,665 | | | | 3,658,073 | |
Montana State University, 0.54%, (SIFMA + 0.45%), 9/1/23 (Put Date), 11/15/35(1) | | | 1,680 | | | | 1,689,845 | |
Ohio Higher Educational Facility Commission, (Case Western Reserve University), 0.528%, (70% of 1 mo. USD LIBOR + 0.42%), 4/1/22 (Put Date), 10/1/44(1) | | | 6,750 | | | | 6,747,840 | |
University of North Carolina at Chapel Hill, 0.454%, (67% of 1 mo. USD LIBOR + 0.35%), 12/1/21 (Put Date), 12/1/41(1) | | | 5,000 | | | | 5,000,100 | |
| | | | | | | | |
| | | | | | $ | 37,213,458 | |
| | | | | | | | |
Electric Utilities — 4.9% | | | | | | | | |
Long Island Power Authority, NY, Electric System Revenue, Series 2014C, 0.858%, (70% of 1 mo. USD LIBOR + 0.75%), 10/1/23 (Put Date), 5/1/33(1) | | $ | 5,050 | | | $ | 5,056,514 | |
Long Island Power Authority, NY, Electric System Revenue, Series 2015C, 0.858%, (70% of 1 mo. USD LIBOR + 0.75%), 10/1/23 (Put Date), 5/1/33(1) | | | 1,750 | | | | 1,752,258 | |
Oklahoma Municipal Power Authority, 0.48%, (SIFMA + 0.39%), 1/1/23(1) | | | 5,035 | | | | 5,034,849 | |
Seattle, WA, Municipal Light and Power Revenue, 0.58%, (SIFMA + 0.49%), 11/1/23 (Put Date), 11/1/46(1) | | | 8,000 | | | | 8,026,880 | |
| | | | | | | | |
| | | | | | $ | 19,870,501 | |
| | | | | | | | |
General Obligations — 8.8% | | | | | | | | |
Bethlehem Area School District Authority, PA, 0.58%, (70% of 1 mo. USD LIBOR + 0.48%), 11/1/21 (Put Date), 7/1/31(1) | | $ | 2,000 | | | $ | 1,995,880 | |
Bethlehem Area School District Authority, PA, 0.59%, (70% of 1 mo. USD LIBOR + 0.49%), 11/1/21 (Put Date), 1/1/30(1) | | | 7,940 | | | | 7,924,279 | |
Connecticut, 0.84%, (SIFMA + 0.75%), 3/1/21(1) | | | 275 | | | | 275,217 | |
Connecticut, 0.94%, (SIFMA + 0.85%), 3/1/22(1) | | | 700 | | | | 704,074 | |
Delaware Valley Regional Finance Authority, PA, 0.864%, (67% of 1 mo. USD LIBOR + 0.76%), 9/1/24 (Put Date), 9/1/48(1) | | | 10,000 | | | | 10,003,800 | |
Katy Independent School District, TX, (PSF Guaranteed), 0.386%, (67% of 1 mo. USD LIBOR + 0.28%), 8/16/21 (Put Date), 8/15/36(1) | | | 4,800 | | | | 4,794,192 | |
Manheim Township School District, PA, 0.575%, (68% of 1 mo. USD LIBOR + 0.47%), 11/1/21 (Put Date), 5/1/25(1) | | | 3,400 | | | | 3,395,376 | |
Massachusetts, 0.694%, (67% of 3 mo. USD LIBOR + 0.55%), 11/1/25(1) | | | 6,400 | | | | 6,392,640 | |
| | | | | | | | |
| | | | | | $ | 35,485,458 | |
| | | | | | | | |
| | | | | | | | |
Security | | Principal Amount (000’s omitted) | | | Value | |
Hospital — 27.7% | | | | | | | | |
Arizona Health Facilities Authority, (Phoenix Children’s Hospital), 1.94%, (SIFMA + 1.85%), 2/1/23 (Put Date), 2/1/48(1) | | $ | 7,500 | | | $ | 7,633,500 | |
Charlotte-Mecklenburg Hospital Authority, NC, (Atrium Health), 0.69%, (SIFMA + 0.60%), 12/1/23 (Put Date), 1/15/48(1) | | | 5,000 | | | | 5,017,700 | |
Charlotte-Mecklenburg Hospital Authority, NC, (Carolinas HealthCare System), (SPA: JPMorgan Chase Bank, N.A.), 0.09%, 1/15/37(2) | | | 1,500 | | | | 1,500,000 | |
Colorado Health Facilities Authority, (Valley View Hospital Association), 2.80% to 5/15/23 (Put Date), 5/15/42 | | | 2,845 | | | | 2,967,477 | |
Geisinger Authority, PA, (Geisinger Health System Foundation), 1.167%, (67% of 1 mo. USD LIBOR + 1.07%), 6/1/24 (Put Date), 6/1/28(1) | | | 2,000 | | | | 2,015,080 | |
Harris County Cultural Education Facilities Finance Corp., TX, (Memorial Hermann Health System), 0.66%, (SIFMA + 0.57%), 12/4/24 (Put Date), 12/1/49(1) | | | 1,800 | | | | 1,791,954 | |
Illinois Finance Authority, (Edward-Elmhurst Healthcare), 0.84%, (SIFMA + 0.75%), 7/1/23 (Put Date), 1/1/46(1) | | | 7,500 | | | | 7,507,125 | |
Indiana Finance Authority, (Parkview Health), 0.64%, (SIFMA + 0.55%), 11/1/23 (Put Date), 11/1/39(1) | | | 6,785 | | | | 6,801,352 | |
Iowa Finance Authority, (Iowa Health System), 0.67%, (SIFMA + 0.58%), 1/4/24 (Put Date), 2/15/35(1)(3) | | | 11,210 | | | | 11,210,000 | |
Irving Hospital Authority, TX, (Baylor Scott & White Medical Center - Irving), 1.19%, (SIFMA + 1.10%), 10/15/23 (Put Date), 10/15/44(1) | | | 1,665 | | | | 1,642,439 | |
Louisiana Public Facilities Authority, (Louisiana Children’s Medical Center), 0.74%, (SIFMA + 0.65%), 9/1/23 (Put Date), 9/1/57(1) | | | 10,000 | | | | 9,988,200 | |
Michigan Finance Authority, (McLaren Health Care), 0.497%, (68% of 1 mo. USD LIBOR + 0.40%), 10/15/21 (Put Date), 10/15/30(1) | | | 890 | | | | 888,247 | |
Michigan Finance Authority, (Trinity Health Credit Group), 0.57%, (SIFMA + 0.48%), 2/1/22 (Put Date), 3/1/51(1) | | | 5,000 | | | | 5,006,700 | |
Montgomery County Higher Education and Health Authority, PA, (Thomas Jefferson University), 0.81%, (SIFMA + 0.72%), 9/1/23 (Put Date), 9/1/51(1) | | | 10,500 | | | | 10,500,420 | |
Northampton County General Purpose Authority, PA, (St. Luke’s University Health Network), 1.148%, (70% of 1 mo. USD LIBOR + 1.04%), 8/15/24 (Put Date), 8/15/48(1) | | | 2,000 | | | | 2,007,660 | |
Ohio, (Cleveland Clinic Health System), 0.49%, (SIFMA + 0.40%), 6/1/23 (Put Date), 1/1/52(1) | | | 18,440 | | | | 18,438,894 | |
Southcentral Pennsylvania General Authority, (WellSpan Health Obligated Group), 0.69%, (SIFMA + 0.60%), 6/1/24 (Put Date), 6/1/49(1) | | | 7,500 | | | | 7,525,575 | |
Wisconsin Health and Educational Facilities Authority, (Advocate Aurora Health Credit Group), 0.64%, (SIFMA + 0.55%), 7/26/23 (Put Date), 8/15/54(1) | | | 1,000 | | | | 1,002,190 | |
Wisconsin Health and Educational Facilities Authority, (Advocate Aurora Health Credit Group), 0.74%, (SIFMA + 0.65%), 7/31/24 (Put Date), 8/15/54(1) | | | 8,200 | | | | 8,240,098 | |
| | | | | | | | |
| | | $ | 111,684,611 | |
| | | | | | | | |
Housing — 7.5% | | | | | | | | |
Massachusetts Housing Finance Agency, (Mill Road Apartments), 0.64%, (SIFMA + 0.55%), 11/1/23 (Put Date), 11/1/48(1) | | $ | 3,920 | | | $ | 3,920,000 | |
Massachusetts Housing Finance Agency, (Single Family Housing), 0.42%, (SIFMA + 0.33%), 12/1/21 (Put Date), 12/1/48(1) | | | 3,775 | | | | 3,775,151 | |
Minnesota Housing Finance Agency, (FHLMC), (FNMA), (GNMA), 0.64%, (SIFMA + 0.55%), 12/12/23 (Put Date), 7/1/41(1) | | | 10,000 | | | | 10,023,000 | |
| | | | | | | | |
Security | | Principal Amount (000’s omitted) | | | Value | |
Pennsylvania Housing Finance Agency, 0.67%, (70% of 1 mo. USD LIBOR + 0.57%), 10/1/23 (Put Date), 10/1/47(1) | | $ | 2,440 | | | $ | 2,441,293 | |
Pennsylvania Housing Finance Agency, 0.70%, (70% of 1 mo. USD LIBOR + 0.60%), 6/1/23 (Put Date), 10/1/45(1) | | | 5,000 | | | | 5,005,400 | |
Washington Housing Finance Commission, 0.64%, (SIFMA + 0.55%), 10/1/23 (Put Date), 12/1/48(1) | | | 5,000 | | | | 5,010,900 | |
| | | | | | | | |
| | | | | | $ | 30,175,744 | |
| | | | | | | | |
Industrial Development Revenue — 2.9% | | | | | | | | |
Mission Economic Development Corp., TX, (Waste Management, Inc.), (AMT), 0.89%, (SIFMA + 0.80%), 11/1/21 (Put Date), 11/1/48(1) | | $ | 5,000 | | | $ | 5,004,050 | |
National Finance Authority, NH, (Waste Management, Inc.), (AMT), 0.84%, (SIFMA + 0.75%), 10/1/21 (Put Date), 10/1/33(1) | | | 6,750 | | | | 6,752,498 | |
| | | | | | | | |
| | | | | | $ | 11,756,548 | |
| | | | | | | | |
Insured-General Obligations — 1.1% | | | | | | | | |
Allegheny County, PA, (AGM), 0.694%, (67% of 3 mo. USD LIBOR + 0.55%), 11/1/26(1) | | $ | 4,570 | | | $ | 4,565,247 | |
| | | | | | | | |
| | | | | | $ | 4,565,247 | |
| | | | | | | | |
Insured-Lease Revenue/Certificates of Participation — 0.5% | | | | | | | | |
Kentucky Asset/Liability Commission, (NPFG), 0.694%, (67% of 3 mo. USD LIBOR + 0.55%), 11/1/25(1) | | $ | 2,000 | | | $ | 1,974,560 | |
| | | | | | | | |
| | | | | | $ | 1,974,560 | |
| | | | | | | | |
Insured-Transportation — 0.7% | | | | | | | | |
Metropolitan Transportation Authority, NY, (AGM), 0.407%, (69% of 1 mo. USD LIBOR + 0.30%), 4/1/21 (Put Date), 11/1/32(1) | | $ | 1,500 | | | $ | 1,494,240 | |
Metropolitan Transportation Authority, NY, (AGM), 0.787%, (69% of 1 mo. USD LIBOR + 0.68%), 4/6/21 (Put Date), 11/1/32(1) | | | 1,250 | | | | 1,246,075 | |
| | | | | | | | |
| | | | | | $ | 2,740,315 | |
| | | | | | | | |
Lease Revenue/Certificates of Participation — 0.5% | | | | | | | | |
New Jersey Economic Development Authority, (School Facilities Construction), 1.64%, (SIFMA + 1.55%), 9/1/27(1) | | $ | 2,000 | | | $ | 1,995,780 | |
| | | | | | | | |
| | | | | | $ | 1,995,780 | |
| | | | | | | | |
Other Revenue — 17.4% | | | | | | | | |
Black Belt Energy Gas District, AL, 0.71%, (SIFMA + 0.62%), 12/1/23 (Put Date), 12/1/48(1) | | $ | 20,000 | | | $ | 20,025,200 | |
California Infrastructure and Economic Development Bank, (California Academy of Sciences), 0.482%, (70% of 1 mo. USD LIBOR + 0.38%), 8/1/21 (Put Date), 8/1/47(1) | | | 10,000 | | | | 9,999,500 | |
Northern California Gas Authority No. 1, Gas Project Revenue, 0.871%, (67% of 3 mo. USD LIBOR + 0.72%), 7/1/27(1) | | | 3,665 | | | | 3,647,994 | |
Patriots Energy Group Financing Agency, SC, Gas Supply Revenue, (Liq: Royal Bank of Canada), 0.964%, (67% of 1 mo. USD LIBOR + 0.86%), 2/1/24 (Put Date), 10/1/48(1) | | | 17,500 | | | | 17,574,200 | |
Southeast Alabama Gas Supply District, (Project No. 2), 0.954%, (67% of 1 mo. USD LIBOR + 0.85%), 6/1/24 (Put Date), 6/1/49(1) | | | 5,000 | | | | 4,993,650 | |
| | | | | | | | |
Security | | Principal Amount (000’s omitted) | | | Value | |
Washington Health Care Facilities Authority, (Fred Hutchinson Cancer Research Center), 1.14%, (SIFMA + 1.05%), 7/3/23 (Put Date), 1/1/42(1) | | $ | 12,000 | | | $ | 12,115,560 | |
Washington Health Care Facilities Authority, (Fred Hutchinson Cancer Research Center), 1.196%, (67% of 1 mo. USD LIBOR + 1.10%), 7/1/22 (Put Date), 1/1/42(1) | | | 2,000 | | | | 2,007,380 | |
| | | | | | | | |
| | | | | | $ | 70,363,484 | |
| | | | | | | | |
Special Tax Revenue — 0.0%(4) | | | | | | | | |
New River Community Development District, FL, (Capital Improvements), 5.00%, 5/1/13(5) | | $ | 35 | | | $ | 0 | |
New River Community Development District, FL, (Capital Improvements), Series 2010A-2, 5.75%, 5/1/38 | | | 60 | | | | 60,156 | |
Sterling Hill Community Development District, FL, (Capital Improvements), 5.50%, 11/1/10(5) | | | 90 | | | | 54,165 | |
| | | | | | | | |
| | | | | | $ | 114,321 | |
| | | | | | | | |
Transportation — 15.5% | | | | | | | | |
Bay Area Toll Authority, CA, (San Francisco Bay Area), 0.708%, (70% of 3 mo. USD LIBOR + 0.55%), 4/1/21 (Put Date), 4/1/45(1) | | $ | 12,000 | | | $ | 12,000,960 | |
E-470 Public Highway Authority, CO, 0.517%, (67% of 1 mo. USD LIBOR + 0.42%), 9/1/21 (Put Date), 9/1/39(1) | | | 5,000 | | | | 4,995,050 | |
Metropolitan Transportation Authority, NY, 0.52%, (SIFMA + 0.43%), 2/1/25 (Put Date), 11/1/31(1) | | | 20,000 | | | | 18,557,200 | |
New Jersey Transportation Trust Fund Authority, (Transportation Program), 1.29%, (SIFMA + 1.20%), 12/15/21 (Put Date), 6/15/34(1) | | | 9,000 | | | | 9,007,380 | |
Pennsylvania Turnpike Commission, 0.69%, (SIFMA + 0.60%), 12/1/23(1) | | | 1,000 | | | | 1,005,640 | |
Pennsylvania Turnpike Commission, 0.79%, (SIFMA + 0.70%), 12/1/23(1) | | | 2,500 | | | | 2,512,975 | |
South Carolina Transportation Infrastructure Bank, 0.554%, (67% of 1 mo. USD LIBOR + 0.45%), 10/1/22 (Put Date), 10/1/31(1) | | | 7,955 | | | | 7,945,772 | |
Triborough Bridge and Tunnel Authority, NY, 0.804%, (67% of 1 mo. USD LIBOR + 0.70%), 2/1/21 (Put Date), 1/1/32(1) | | | 6,535 | | | | 6,536,373 | |
| | | | | | | | |
| | | | | | $ | 62,561,350 | |
| | | | | | | | |
Water and Sewer — 0.8% | | | | | | | | |
North Penn Water Authority, PA, 0.45%, (SIFMA + 0.36%), 11/1/22(1) | | $ | 1,450 | | | $ | 1,444,591 | |
North Penn Water Authority, PA, 0.65%, (SIFMA + 0.56%), 11/1/24(1) | | | 1,690 | | | | 1,680,553 | |
| | | | | | $ | 3,125,144 | |
| | | | | | | | |
| | |
Total Tax-Exempt Municipal Securities — 97.5% (identified cost $394,839,568) | | | | | | $ | 393,626,521 | |
| | | | | | | | |
| | |
Other Assets, Less Liabilities — 2.5% | | | | | | $ | 9,908,357 | |
| | | | | | | | |
| | |
Net Assets — 100.0% | | | | | | $ | 403,534,878 | |
| | | | | | | | |
The percentage shown for each investment category in the Portfolio of Investments is based on net assets.
At December 31, 2020, the concentration of the Fund’s investments in the various states, determined as a percentage of net assets, is as follows:
The Fund invests primarily in debt securities issued by municipalities. The ability of the issuers of the debt securities to meet their obligations may be affected by economic developments in a specific industry or municipality. At December 31, 2020, 2.4% of total investments are backed by bond insurance of various financial guaranty assurance agencies. The aggregate percentage insured by an individual financial guaranty assurance agency ranged from 0.5% to 1.9% of total investments.
The Fund did not have any open derivative instruments at December 31, 2020.
Under generally accepted accounting principles for fair value measurements, a three-tier hierarchy to prioritize the assumptions, referred to as inputs, is used in valuation techniques to measure fair value. The three-tier hierarchy of inputs is summarized in the three broad levels listed below.
In cases where the inputs used to measure fair value fall in different levels of the fair value hierarchy, the level disclosed is determined based on the lowest level input that is significant to the fair value measurement in its entirety. The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities.
At December 31, 2020, the hierarchy of inputs used in valuing the Fund’s investments, which are carried at value, were as follows:
For information on the Fund’s policy regarding the valuation of investments and other significant accounting policies, please refer to the Fund’s most recent financial statements included in its semiannual or annual report to shareholders.