| Principal Amount | Value | |
| Municipal Bonds 152.2% | ||
| Alabama 0.3% (0.2% of Managed Assets) | ||
| Tuscaloosa County Industrial Development Authority, Hunt Refining Project, Revenue Bonds | ||
| Series A | ||
| 5.25%, due 5/1/44 (a) | $ 1,000,000 | $ 1,013,363 |
| Arizona 0.5% (0.3% of Managed Assets) | ||
| City of Phoenix, Espiritu Community Development Corp., Revenue Bonds | ||
| Series A | ||
| 6.25%, due 7/1/36 | 1,455,000 | 1,455,269 |
| Arkansas 1.0% (0.7% of Managed Assets) | ||
| City of Hot Springs, Wastewater, Revenue Bonds | ||
| Series B, Insured: BAM | ||
| 4.375%, due 12/1/50 | 3,215,000 | 3,137,958 |
| California 19.4% (12.6% of Managed Assets) | ||
| California Statewide Communities Development Authority, Loma Linda University Medical Center Obligated Group, Revenue Bonds | ||
| Series A | ||
| 5.50%, due 12/1/54 | 3,000,000 | 3,004,179 |
| Hastings Campus Housing Finance Authority, Green Bond, Revenue Bonds, Senior Lien | ||
| Series A | ||
| 5.00%, due 7/1/61 (a) | 2,500,000 | 2,316,736 |
| Los Angeles Department of Water & Power, Power System, Revenue Bonds | ||
| Series D | ||
| 5.00%, due 7/1/39 | 115,000 | 119,423 |
| Los Angeles Department of Water And Power, Water System, Revenue Bonds | ||
| Series A | ||
| 5.00%, due 7/1/48 (b) | 15,000,000 | 15,214,647 |
| Norman Y Mineta San Jose International Airport SJC, Revenue Bonds | ||
| Series A | ||
| 5.00%, due 3/1/47 (c) | 3,055,000 | 3,067,784 |
| San Diego County Regional Airport Authority, Revenue Bonds | ||
| Series A | ||
| 5.00%, due 7/1/56 (b) | 5,500,000 | 5,697,174 |
| Series B | ||
| 5.00%, due 7/1/46 (c) | 3,250,000 | 3,353,766 |
| San Francisco City & County Airport Commission, San Francisco International Airport, Revenue Bonds, Second Series | ||
| Series A | ||
| 5.50%, due 5/1/55 (b)(c) | 6,000,000 | 6,460,951 |
| Southern California Public Power Authority, Southern Transmission System Renewal Project, Revenue Bonds | ||
| Series 1, Insured: BAM | ||
| 5.25%, due 7/1/50 (b) | 10,000,000 | 10,741,411 |
| Trustees of The California State University, Systemwide, Revenue Bonds | ||
| Series A | ||
| 5.25%, due 11/1/53 (b) | 8,780,000 | 9,461,703 |
| Principal Amount | Value | |
| California | ||
| Upland Community Facilities District No. 2016-1, Improvement Area No. 2, Special Tax | ||
| Series B | ||
| 3.25%, due 9/1/30 | $ 925,000 | $ 846,010 |
| 60,283,784 | ||
| Colorado 4.8% (3.1% of Managed Assets) | ||
| City & County of Denver, School District No. 1, Revenue Bonds | ||
| Series C, Insured: State Aid Withholding | ||
| 5.50%, due 12/1/49 (b) | 10,000,000 | 11,097,435 |
| Copper Ridge Metropolitan District, Revenue Bonds | ||
| 5.00%, due 12/1/39 | 3,950,000 | 3,980,841 |
| 15,078,276 | ||
| Delaware 2.8% (1.8% of Managed Assets) | ||
| Delaware Transportation Authority, U.S. 301 Project, Revenue Bonds | ||
| 5.00%, due 6/1/55 | 8,787,000 | 8,790,130 |
| District of Columbia 0.8% (0.5% of Managed Assets) | ||
| Metropolitan Washington Airports Authority, Dulles Toll Road, Metrorail & Capital Improvement Project, Revenue Bonds, Second Lien | ||
| Series C, Insured: AG | ||
| 6.50%, due 10/1/41 (d) | 2,400,000 | 2,459,165 |
| Florida 5.3% (3.4% of Managed Assets) | ||
| County of Broward, Airport System, Revenue Bonds | ||
| 5.00%, due 10/1/42 (c) | 4,500,000 | 4,582,624 |
| County of Lee, Airport, Revenue Bonds | ||
| 5.25%, due 10/1/49 (c) | 10,200,000 | 10,754,888 |
| Hillsborough County Port District, Tampa Port Authority Project, Revenue Bonds | ||
| Series B | ||
| 5.00%, due 6/1/46 (c) | 1,000,000 | 1,016,357 |
| 16,353,869 | ||
| Georgia 0.4% (0.3% of Managed Assets) | ||
| Municipal Electric Authority of Georgia, Plant Vogtle Units 3 & 4 Project, Revenue Bonds | ||
| Series B | ||
| 5.00%, due 1/1/59 | 1,250,000 | 1,251,533 |
| Guam 1.5% (1.0% of Managed Assets) | ||
| Port Authority of Guam, Revenue Bonds | ||
| Series A | ||
| 5.00%, due 7/1/48 | 4,725,000 | 4,770,084 |
| Illinois 16.7% (10.8% of Managed Assets) | ||
| Chicago Board of Education, Dedicated Capital Improvement, Revenue Bonds | ||
| 5.75%, due 4/1/34 | 8,000,000 | 8,171,616 |
| Principal Amount | Value | |
| Illinois | ||
| Chicago Board of Education, Dedicated Capital Improvement, Unlimited General Obligation (a) | ||
| Series A | ||
| 7.00%, due 12/1/46 | $ 4,000,000 | $ 4,112,727 |
| Series B | ||
| 7.00%, due 12/1/42 | 3,500,000 | 3,628,319 |
| City of Chicago, Unlimited General Obligation | ||
| Series A | ||
| 5.50%, due 1/1/49 | 1,520,000 | 1,527,684 |
| Series A | ||
| 6.00%, due 1/1/38 | 6,215,000 | 6,307,140 |
| Metropolitan Pier & Exposition Authority, McCormick Place Expansion Project, Revenue Bonds | ||
| Series A | ||
| 5.00%, due 6/15/57 | 4,665,000 | 4,664,277 |
| Sales Tax Securitization Corp., Revenue Bonds | ||
| Series C, Insured: BAM | ||
| 5.25%, due 1/1/48 (b) | 11,000,000 | 11,222,408 |
| Southwestern Illinois Development Authority, Traid Community Unit School District No. 2 Project, Revenue Bonds | ||
| Series B, Insured: BAM | ||
| 5.50%, due 4/1/50 | 3,000,000 | 3,268,421 |
| State of Illinois, Unlimited General Obligation | ||
| 5.50%, due 5/1/39 (b) | 8,380,000 | 9,022,598 |
| 51,925,190 | ||
| Kentucky 2.0% (1.3% of Managed Assets) | ||
| Kentucky Bond Development Corp., Kentucky Communications Network Authority, Revenue Bonds | ||
| Insured: BAM | ||
| 5.00%, due 9/1/44 (b) | 5,975,000 | 6,219,590 |
| Massachusetts 1.2% (0.8% of Managed Assets) | ||
| Commonwealth of Massachusetts Transportation Fund, Rail Enhancement Program, Revenue Bonds | ||
| Series A | ||
| 5.00%, due 6/1/53 (b) | 3,535,000 | 3,689,531 |
| Michigan 4.7% (3.1% of Managed Assets) | ||
| Michigan Finance Authority, Bronson Health Care Group, Inc., Revenue Bonds | ||
| Series A | ||
| 5.00%, due 5/15/54 | 5,000,000 | 5,026,785 |
| Michigan Strategic Fund, State of Michigan Department of Transportation, Revenue Bonds | ||
| 5.00%, due 12/31/43 (c) | 1,875,000 | 1,903,511 |
| State of Michigan, Trunk Line, Revenue Bonds | ||
| 5.50%, due 11/15/44 (b) | 7,000,000 | 7,856,180 |
| 14,786,476 | ||
| Mississippi 0.4% (0.3% of Managed Assets) | ||
| Mississippi Hospital Equipment & Facilities Authority, Baptist Memorial Health Corp., Revenue Bonds | ||
| Series A | ||
| 5.00%, due 9/1/46 | 1,285,000 | 1,285,671 |
| Principal Amount | Value | |
| Montana 0.7% (0.4% of Managed Assets) | ||
| County of Gallatin, Bozeman Fiber Project, Revenue Bonds | ||
| Series B | ||
| (zero coupon), due 10/15/55 (a)(d) | $ 2,865,000 | $ 2,033,004 |
| Nebraska 3.4% (2.2% of Managed Assets) | ||
| Airport Authority of the City of Omaha, Airport Facilities, Revenue Bonds | ||
| Insured: AG | ||
| 5.25%, due 12/15/49 (b) | 10,000,000 | 10,531,878 |
| Nevada 4.7% (3.0% of Managed Assets) | ||
| Las Vegas Valley Water District, Water, Unlimited General Obligation | ||
| Series A | ||
| 5.00%, due 6/1/53 (b) | 11,000,000 | 11,472,146 |
| Tahoe-Douglas Visitors Authority, Revenue Bonds | ||
| 5.00%, due 7/1/40 | 2,915,000 | 3,045,904 |
| 14,518,050 | ||
| New Hampshire 3.4% (2.2% of Managed Assets) | ||
| New Hampshire Business Finance Authority, Wheeling Power Co., Revenue Bonds | ||
| Series A | ||
| 6.89%, due 4/1/34 (a) | 10,000,000 | 10,721,019 |
| New Jersey 4.1% (2.7% of Managed Assets) | ||
| New Jersey Economic Development Authority, Continental Airlines, Inc. Project, Revenue Bonds | ||
| 5.25%, due 9/15/29 | 3,530,000 | 3,536,927 |
| New Jersey Economic Development Authority, New Jersey Transit Transportation Project, Revenue Bonds | ||
| Series A | ||
| 4.00%, due 11/1/39 | 3,400,000 | 3,445,806 |
| New Jersey Transportation Trust Fund Authority, Transportation Program, Revenue Bonds | ||
| Series AA | ||
| 5.25%, due 6/15/43 | 4,595,000 | 4,791,197 |
| Series BB | ||
| 4.00%, due 6/15/44 | 1,000,000 | 995,105 |
| 12,769,035 | ||
| New York 18.3% (11.9% of Managed Assets) | ||
| Dormitory Authority of the State of New York, White Plains Hospital Obligated Group, Revenue Bonds | ||
| Insured: AG | ||
| 5.50%, due 10/1/54 (b) | 9,535,000 | 10,210,750 |
| Metropolitan Transportation Authority, Revenue Bonds | ||
| Series C-1 | ||
| 5.25%, due 11/15/56 | 7,100,000 | 7,118,829 |
| MTA Hudson Rail Yards Trust Obligations, Revenue Bonds | ||
| Series A | ||
| 5.00%, due 11/15/51 | 2,500,000 | 2,500,024 |
| Series A | ||
| 5.00%, due 11/15/56 | 4,000,000 | 3,999,938 |
| Principal Amount | Value | |
| New York | ||
| New York Liberty Development Corp., 3 World Trade Center Project, Revenue Bonds | ||
| Class 1 | ||
| 5.00%, due 11/15/44 (a) | $ 5,000,000 | $ 5,008,243 |
| Port Authority of New York & New Jersey, Revenue Bonds | ||
| Series 231 | ||
| 5.50%, due 8/1/52 (b) | 10,000,000 | 10,577,248 |
| State of New York Dormitory Authority, Personal Income Tax, General Purpose, Revenue Bonds | ||
| Series A | ||
| 5.00%, due 3/15/41 (b) | 9,450,000 | 10,303,101 |
| Triborough Bridge & Tunnel Authority, MTA Bridges & Tunnels, Revenue Bonds | ||
| Series A | ||
| 5.00%, due 11/15/49 (b) | 7,000,000 | 7,299,387 |
| 57,017,520 | ||
| Ohio 2.0% (1.3% of Managed Assets) | ||
| Columbus Regional Airport Authority, John Glenn Columbus International Airport, Revenue Bonds | ||
| Series A | ||
| 5.50%, due 1/1/55 (c) | 5,000,000 | 5,301,531 |
| Ohio Higher Educational Facility Commission, Ashtabula County Medical Center Obligated Group, Revenue Bonds | ||
| 5.25%, due 1/1/52 | 1,000,000 | 1,004,438 |
| 6,305,969 | ||
| Pennsylvania 9.4% (6.1% of Managed Assets) | ||
| Allentown Neighborhood Improvement Zone Development Authority, City Center Project, Revenue Bonds | ||
| 5.00%, due 5/1/42 (a) | 9,110,000 | 9,175,382 |
| Pennsylvania Economic Development Financing Authority, Penndot Major Bridges Project, Revenue Bonds | ||
| Insured: AG | ||
| 5.75%, due 12/31/62 (b)(c) | 12,465,000 | 13,148,528 |
| Southeastern Pennsylvania Transportation Authority, Asset Improvement Program, Revenue Bonds | ||
| 5.25%, due 6/1/43 (b) | 6,500,000 | 7,069,997 |
| 29,393,907 | ||
| Puerto Rico 12.6% (8.2% of Managed Assets) | ||
| Children's Trust Fund, Asset-Backed, Revenue Bonds | ||
| 5.50%, due 5/15/39 | 7,885,000 | 8,014,396 |
| Commonwealth of Puerto Rico, Unlimited General Obligation | ||
| Series A-1 | ||
| 4.00%, due 7/1/33 | 8,500,000 | 8,705,521 |
| Puerto Rico Commonwealth Aqueduct & Sewer Authority, Revenue Bonds, Senior Lien (a) | ||
| Series A | ||
| 5.00%, due 7/1/33 | 1,500,000 | 1,600,886 |
| Series A | ||
| 5.00%, due 7/1/47 | 5,000,000 | 5,011,212 |
| Puerto Rico Municipal Finance Agency, Revenue Bonds | ||
| Series A, Insured: AG | ||
| 5.00%, due 8/1/27 | 755,000 | 757,250 |
| Series A, Insured: AG | ||
| 5.00%, due 8/1/30 | 1,685,000 | 1,690,293 |
| Principal Amount | Value | |
| Puerto Rico | ||
| Puerto Rico Sales Tax Financing Corp., Restructured, Revenue Bonds | ||
| Series A-1 | ||
| 4.55%, due 7/1/40 | $ 2,500,000 | $ 2,516,752 |
| Series A-2 | ||
| 4.329%, due 7/1/40 | 10,940,000 | 10,962,628 |
| 39,258,938 | ||
| South Carolina 4.8% (3.1% of Managed Assets) | ||
| South Carolina Public Service Authority, Santee Cooper, Revenue Bonds | ||
| Series E, Insured: AG | ||
| 5.75%, due 12/1/52 (b) | 8,500,000 | 9,229,432 |
| Spartanburg Regional Health Services District Hospital, Revenue Bonds | ||
| Series A | ||
| 5.00%, due 4/15/48 | 5,500,000 | 5,568,922 |
| 14,798,354 | ||
| Texas 11.2% (7.3% of Managed Assets) | ||
| Central Texas Regional Mobility Authority, Revenue Bonds | ||
| Series B, Insured: BAM | ||
| 4.00%, due 1/1/51 | 1,645,000 | 1,515,693 |
| City of Georgetown, Utility System, Revenue Bonds | ||
| Insured: AG | ||
| 5.25%, due 8/15/52 (b) | 7,500,000 | 7,828,270 |
| Horizon Regional Municipal Utility District, Unlimited General Obligation | ||
| Insured: BAM | ||
| 2.00%, due 2/1/35 | 1,510,000 | 1,329,973 |
| Tarrant County Cultural Education Facilities Finance Corp., Health Resources System, Revenue Bonds | ||
| Series A | ||
| 5.50%, due 11/15/52 (b) | 4,000,000 | 4,330,477 |
| Texas Private Activity Bond Surface Transportation Corp., NTE Mobility Partners LLC North Tarrant Express Project, Revenue Bonds, Senior Lien | ||
| 5.50%, due 12/31/58 (b)(c) | 10,000,000 | 10,381,751 |
| Texas Water Development Board, State Water Impementation, Revenue Bonds | ||
| 5.00%, due 10/15/60 (b) | 7,500,000 | 7,817,638 |
| West Harris County Regional Water Authority, Revenue Bonds | ||
| Insured: AG | ||
| 5.50%, due 12/15/50 | 1,580,000 | 1,702,855 |
| 34,906,657 | ||
| U.S. Virgin Islands 5.0% (3.2% of Managed Assets) | ||
| Matching Fund Special Purpose Securitization Corp., Revenue Bonds | ||
| Series A | ||
| 5.00%, due 10/1/30 | 1,570,000 | 1,658,336 |
| Series A | ||
| 5.00%, due 10/1/32 | 1,570,000 | 1,686,966 |
| Series A | ||
| 5.00%, due 10/1/39 | 4,710,000 | 4,994,188 |
| Virgin Islands Public Finance Authority, Gross Receipts Taxes Loan, Revenue Bonds | ||
| Series A | ||
| 5.00%, due 10/1/29 (a) | 2,450,000 | 2,450,874 |
| Principal Amount | Value | |
| U.S. Virgin Islands | ||
| Virgin Islands Public Finance Authority, Gross Receipts Taxes Loan, Revenue Bonds | ||
| Series A | ||
| 5.00%, due 10/1/32 | $ 2,425,000 | $ 2,425,692 |
| Series A, Insured: AG-CR | ||
| 5.00%, due 10/1/32 | 2,200,000 | 2,207,073 |
| 15,423,129 | ||
| Utah 0.8% (0.5% of Managed Assets) | ||
| City of Salt Lake City, Airport, Revenue Bonds | ||
| Series A | ||
| 5.50%, due 7/1/53 (c) | 300,000 | 315,636 |
| Military Installation Development Authority, Revenue Bonds | ||
| Series A-1 | ||
| 4.00%, due 6/1/52 | 2,750,000 | 2,303,462 |
| 2,619,098 | ||
| Virginia 3.8% (2.4% of Managed Assets) | ||
| Hampton Roads Transportation Accountability Commission, Roads Transportation Fund, Revenue Bonds, Senior Lien | ||
| Series A | ||
| 5.25%, due 7/1/60 (b) | 10,000,000 | 10,363,667 |
| Virginia College Building Authority, Regent University Project, Revenue Bonds | ||
| 6.00%, due 6/1/50 | 1,250,000 | 1,332,420 |
| 11,696,087 | ||
| West Virginia 2.9% (1.9% of Managed Assets) | ||
| West Virginia Hospital Finance Authority, Vandalia Heath Group, Revenue Bonds | ||
| Series B, Insured: AG | ||
| 5.375%, due 9/1/53 | 4,500,000 | 4,736,048 |
| Series B | ||
| 6.00%, due 9/1/48 | 4,000,000 | 4,368,606 |
| 9,104,654 | ||
| Wisconsin 3.3% (2.1% of Managed Assets) | ||
| Public Finance Authority, CHF - Wilmington LLC, Revenue Bonds | ||
| Insured: AG | ||
| 5.00%, due 7/1/58 | 1,295,000 | 1,297,153 |
| Public Finance Authority, Lindenwood Education System, Revenue Bonds | ||
| Series B | ||
| 6.00%, due 6/1/27 (a) | 3,000,000 | 3,018,331 |
| Public Finance Authority, Ultimate Medical Academy Project, Revenue Bonds | ||
| Series A | ||
| 5.00%, due 10/1/39 (a) | 5,750,000 | 5,922,593 |
| 10,238,077 | ||
| Total Municipal Bonds (Cost $462,176,275) | 473,835,265 | |
| Shares | Value | ||
| Short-Term Investment 0.1% | |||
| Unaffiliated Investment Company 0.1% (0.1% of Managed Assets) | |||
| Dreyfus Government Cash Management - Institutional Shares, 3.555% (e) | 473,280 | $ 473,280 | |
| Total Short-Term Investment (Cost $473,280) | 473,280 | ||
| Total Investments (Cost $462,649,555) | 152.3% | 474,308,545 | |
| Floating Rate Note Obligations (f) | (53.5) | (166,660,000) | |
| Other Assets, Less Liabilities | 1.2 | 3,742,799 | |
| Net Assets Applicable to Common Shares | 100.0% | $ 311,391,344 | |
| † | Percentages indicated are based on Fund net assets applicable to Common shares. |
| (a) | May be sold to institutional investors only under Rule 144A or securities offered pursuant to Section 4(a)(2) of the Securities Act of 1933, as amended. |
| (b) | All or portion of principal amount transferred to a Tender Option Bond (“TOB”) Issuer in exchange for TOB Residuals and cash. |
| (c) | Interest on these securities is subject to alternative minimum tax. |
| (d) | Step coupon—Rate shown was the rate in effect as of February 28, 2026. |
| (e) | Current yield as of February 28, 2026. |
| (f) | Face value of Floating Rate Notes issued in TOB transactions. |
| Abbreviation(s): |
| AG—Assured Guaranty Ltd. |
| BAM—Build America Mutual Assurance Co. |
| CHF—Collegiate Housing Foundation |
| CR—Custodial Receipts |
| MTA—Metropolitan Transportation Authority |
| Description | Quoted Prices in Active Markets for Identical Assets (Level 1) | Significant Other Observable Inputs (Level 2) | Significant Unobservable Inputs (Level 3) | Total | |||
| Asset Valuation Inputs | |||||||
| Investments in Securities (a) | |||||||
| Municipal Bonds | $ — | $ 473,835,265 | $ — | $ 473,835,265 | |||
| Short-Term Investment | |||||||
| Unaffiliated Investment Company | 473,280 | — | — | 473,280 | |||
| Total Investments in Securities | $ 473,280 | $ 473,835,265 | $ — | $ 474,308,545 |
| (a) | For a complete listing of investments and their industries, see the Portfolio of Investments. |
| • | Level 1—quoted prices (unadjusted) in active markets for an identical asset or liability |
| • | Level 2—other significant observable inputs (including quoted prices for a similar asset or liability in active markets, interest rates and yield curves, prepayment speeds, credit risk, etc.) |
| • | Level 3—significant unobservable inputs (including the Fund's own assumptions about the assumptions that market participants would use in measuring fair value of an asset or liability) |
| • Benchmark yields | • Reported trades |
| • Broker/dealer quotes | • Issuer spreads |
| • Two-sided markets | • Benchmark securities |
| • Bids/offers | • Reference data (corporate actions or material event notices) |
| • Industry and economic events | • Comparable bonds |
| • Monthly payment information |