{
  "page": "compare",
  "query": {
    "a": "NAAEX",
    "b": "FSMB"
  },
  "retrieved_at": "2026-07-07T17:28:53+00:00",
  "disclaimer": "Informational only — not investment advice. FundWatcher presents publicly available data and makes no recommendation to buy or sell any security. Verify all figures against the source filing before relying on them.",
  "attribution": "Data sourced from U.S. SEC EDGAR filings (Forms N-PORT, N-CEN, and prospectus Risk/Return summaries). FundWatcher is not affiliated with the SEC.",
  "terms": {
    "notice": "Use of this data is subject to the FundWatcher Terms of Service. Information may be used only for personal, non-commercial research and may not be redistributed.",
    "url": "https://fundwatcher.app/terms/"
  },
  "fund_a": {
    "name": "Nuveen Short Term Municipal Bond Fund",
    "ticker": "NAAEX",
    "slug": "NAAEX",
    "series_id": "S000005564",
    "html_url": "https://fundwatcher.app/funds/NAAEX/"
  },
  "fund_b": {
    "name": "First Trust Short Duration Managed Municipal ETF",
    "ticker": "FSMB",
    "slug": "FSMB",
    "series_id": "S000063445",
    "html_url": "https://fundwatcher.app/funds/FSMB/"
  },
  "overlap": {
    "coverage_a_by_b": "0.03464870727014194774689230784",
    "coverage_b_by_a": "0.03464870727014194774689230784",
    "shared_count": 26,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-04-30"
    },
    "a_top": [
      {
        "name": "COLORADO ST HLTH FACS AUTH REV REGD V/R B/E 5.00000000",
        "value": "10186590.93",
        "weight": "0.02411476",
        "shared": false
      },
      {
        "name": "MTRO WA DC ARPT 5% 10/1/2026@",
        "value": "6079616.23",
        "weight": "0.01439230",
        "shared": false
      },
      {
        "name": "MARICOPA IDA-D",
        "value": "6030555.39",
        "weight": "0.01427616",
        "shared": false
      },
      {
        "name": "HARRIS TX CED 5% MT",
        "value": "5755314.87",
        "weight": "0.01362458",
        "shared": false
      },
      {
        "name": "WA ST HLTH CAR 5% 8/1/2049 MT",
        "value": "5490593.60",
        "weight": "0.01299791",
        "shared": false
      },
      {
        "name": "Florida Municipal Power Agency, Series 2025A",
        "value": "5474623.31",
        "weight": "0.01296010",
        "shared": false
      },
      {
        "name": "WASHINGTON ST-R-2025B",
        "value": "5316127.49",
        "weight": "0.01258489",
        "shared": false
      },
      {
        "name": "Alaska Housing Finance Corporation, General Obligation Bonds, State Capital Project II, Series 2025A",
        "value": "5184421.50",
        "weight": "0.01227310",
        "shared": false
      },
      {
        "name": "Massachusetts Port Authority, Series 2019 A",
        "value": "5027306.00",
        "weight": "0.01190116",
        "shared": false
      },
      {
        "name": "UNIV OF TEXAS TX UNIV REVENUES",
        "value": "4982975.61",
        "weight": "0.01179622",
        "shared": false
      },
      {
        "name": "RESTRUCTURED-SER A1",
        "value": "4270325.25",
        "weight": "0.01010916",
        "shared": false
      },
      {
        "name": "HOUSTON TX ARPT 5% 7/1/2026 @",
        "value": "3649457.16",
        "weight": "0.00863938",
        "shared": false
      },
      {
        "name": "DENVER CO ARPT 5.25% 11/15/2026",
        "value": "3578332.55",
        "weight": "0.00847100",
        "shared": false
      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Series 2019C-1",
        "value": "3532715.20",
        "weight": "0.00836301",
        "shared": true
      },
      {
        "name": "HAMPTON ROADS VA TRANSPRTN ACC REGD N/C B/E 5.00000000",
        "value": "3383324.98",
        "weight": "0.00800936",
        "shared": false
      },
      {
        "name": "Michigan State Building Authority, Revenue Bonds, Facilities Program, Refunding Series 2025I",
        "value": "3328674.05",
        "weight": "0.00787998",
        "shared": false
      },
      {
        "name": "LOUISIANA ST LOCAL GOVT ENVRNM LOUISIANA LOCAL GOVERNMENT ENVIRONMENTAL FACILITIE",
        "value": "3280267.25",
        "weight": "0.00776539",
        "shared": false
      },
      {
        "name": "State of Louisiana Gasoline & Fuels Tax, Series 2025B",
        "value": "3216363.30",
        "weight": "0.00761411",
        "shared": false
      },
      {
        "name": "CHICAGO O'HARE INTERNATIONAL AIRPORT",
        "value": "3094721.20",
        "weight": "0.00732615",
        "shared": false
      },
      {
        "name": "MI STRAT FND 3.35% MT@",
        "value": "3059894.32",
        "weight": "0.00724370",
        "shared": true
      },
      {
        "name": "CHICAGO MIDWAY INTL 5.00%",
        "value": "3045844.20",
        "weight": "0.00721044",
        "shared": false
      },
      {
        "name": "NORTH EAST TX INDEP SCH DIST",
        "value": "2987938.44",
        "weight": "0.00707336",
        "shared": false
      },
      {
        "name": "PORT NY NJ 5% 12/1/2026 @",
        "value": "2935200.84",
        "weight": "0.00694851",
        "shared": false
      },
      {
        "name": "MAIN STR NAT GA 4% 07/01/2052 MT",
        "value": "2888669.30",
        "weight": "0.00683836",
        "shared": true
      },
      {
        "name": "Metropolitan Utilities District of Omaha, Nebraska, Gas System Revenue Bonds, Series 2023",
        "value": "2754857.55",
        "weight": "0.00652159",
        "shared": false
      },
      {
        "name": "NYC TRANSITIONAL FIN",
        "value": "2736711.26",
        "weight": "0.00647863",
        "shared": false
      },
      {
        "name": "MO MOSMED 05/01/2051",
        "value": "2657809.79",
        "weight": "0.00629184",
        "shared": false
      },
      {
        "name": "Miami-Dade County, Florida, Seaport Revenue Bonds, Refunding Series 2022A",
        "value": "2625711.66",
        "weight": "0.00621586",
        "shared": false
      },
      {
        "name": "Columbus, Ohio, General Obligation Bonds, Various Purpose Series 2025-1",
        "value": "2622814.25",
        "weight": "0.00620900",
        "shared": false
      },
      {
        "name": "Orange County Health Facilities Authority, Florida, Hospital Revenue Bonds, Advent Health Obligated Group, Series 2021C",
        "value": "2590700.25",
        "weight": "0.00613298",
        "shared": false
      },
      {
        "name": "Port of Seattle, Washington, Revenue Bonds, Intermediate Lien Series 2015C",
        "value": "2525000.00",
        "weight": "0.00597744",
        "shared": false
      },
      {
        "name": "State of Illinois Sales Tax, Series 2021C",
        "value": "2395346.48",
        "weight": "0.00567051",
        "shared": false
      },
      {
        "name": "Alta Loma School District, San Bernardino, California, General Obligation Bonds, 1999 Election Series 2002B",
        "value": "2380719.84",
        "weight": "0.00563589",
        "shared": false
      },
      {
        "name": "Colorado Housing and Finance Authority, Multi Family Project Bonds, Class I Series 2025C-2",
        "value": "2303404.92",
        "weight": "0.00545286",
        "shared": false
      },
      {
        "name": "COLORADO ST HLTH FACS AUTH REV REGD V/R B/E 5.00000000",
        "value": "2287330.24",
        "weight": "0.00541481",
        "shared": false
      },
      {
        "name": "Los Angeles Department of Airports, California, Revenue Bonds, Los Angeles International Airport, Refunding Subordinate Green Series 2025A",
        "value": "2197848.58",
        "weight": "0.00520298",
        "shared": false
      },
      {
        "name": "Wisconsin (State of), Series 2024, Ref. GO Bonds",
        "value": "2195750.87",
        "weight": "0.00519801",
        "shared": false
      },
      {
        "name": "HAWAII ST DEPT OF BUDGET & FIN STATE OF HAWAII DEPARTMENT OF BUDGET & FINANCE",
        "value": "2178112.14",
        "weight": "0.00515625",
        "shared": false
      },
      {
        "name": "State of Connecticut, Series 2025D",
        "value": "2155779.00",
        "weight": "0.00510338",
        "shared": false
      },
      {
        "name": "Florida State Turnpike Authority, Turnpike Revenue Bonds, Department of Transportation, Series 2025D",
        "value": "2151564.40",
        "weight": "0.00509341",
        "shared": false
      },
      {
        "name": "DENVER CO ARPT 5% 12/1/2027 @",
        "value": "2148113.34",
        "weight": "0.00508524",
        "shared": false
      },
      {
        "name": "Ohio State, General Obligation Bonds, Refunding Highway Capital Improvement Series 2026AA",
        "value": "2144857.00",
        "weight": "0.00507753",
        "shared": false
      },
      {
        "name": "Maine Municipal Bond Bank, Series 2026",
        "value": "2114204.00",
        "weight": "0.00500496",
        "shared": false
      },
      {
        "name": "STATE OF CALIFORNIA",
        "value": "2113339.80",
        "weight": "0.00500292",
        "shared": false
      },
      {
        "name": "STATE OF NORTH CARO 5.00%",
        "value": "2092759.60",
        "weight": "0.00495420",
        "shared": false
      },
      {
        "name": "TRIBOROUGH NY BRIDGE   TUNNEL TRBTRN 03/28 FIXED 5",
        "value": "2092376.40",
        "weight": "0.00495329",
        "shared": false
      },
      {
        "name": "Black Belt Energy Gas District, Alabama, Gas Project Revenue Bonds, Prepay BP PLC, Series 2024D",
        "value": "2049268.80",
        "weight": "0.00485124",
        "shared": false
      },
      {
        "name": "SAINT CLOUD MN HLTH C",
        "value": "2033537.68",
        "weight": "0.00481400",
        "shared": false
      },
      {
        "name": "Richmond County Board of Education, Georgia, General Obligation Bonds, Sales Tax Series 2025",
        "value": "2019165.13",
        "weight": "0.00477998",
        "shared": false
      },
      {
        "name": "TN ENERGY JR-SER B",
        "value": "2014075.20",
        "weight": "0.00476793",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "Southeast Energy Authority, Alabama, Revenue Bonds Cooperative District Energy Supply Series 2024C",
        "value": "6372370.20",
        "weight": "0.01078087",
        "shared": false
      },
      {
        "name": "County of Utah UT",
        "value": "5000000.00",
        "weight": "0.00845907",
        "shared": false
      },
      {
        "name": "OH OHSDEV 11/01/2039",
        "value": "4805848.92",
        "weight": "0.00813060",
        "shared": false
      },
      {
        "name": "Wisconsin (State of) Public Finance Authority (Duke Energy Progress), Series 2022, Ref. RB",
        "value": "4281206.10",
        "weight": "0.00724301",
        "shared": true
      },
      {
        "name": "St. John the Baptist (Parish of), LA (Marathon Oil Corp.), Series 2017, Ref. RB",
        "value": "4026151.60",
        "weight": "0.00681150",
        "shared": true
      },
      {
        "name": "Main Street Energy, Inc., Series D",
        "value": "3895478.03",
        "weight": "0.00659043",
        "shared": false
      },
      {
        "name": "Palm Beach (County of), FL Health Facilities Authority (ACTS Retirement-Life Communities, Inc.), Series 2016, Ref. RB",
        "value": "3743929.08",
        "weight": "0.00633403",
        "shared": false
      },
      {
        "name": "NYC MUNI WTR FIN-BB",
        "value": "3500000.00",
        "weight": "0.00592135",
        "shared": false
      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Refunding Series 2025A",
        "value": "3481712.58",
        "weight": "0.00589041",
        "shared": false
      },
      {
        "name": "Black Belt Energy Gas District",
        "value": "3440432.23",
        "weight": "0.00582057",
        "shared": false
      },
      {
        "name": "BLACK BELT ENERGY GAS VAR",
        "value": "3420591.24",
        "weight": "0.00578701",
        "shared": false
      },
      {
        "name": "NM MUNI ENERGY ACQ AU",
        "value": "3381642.53",
        "weight": "0.00572111",
        "shared": false
      },
      {
        "name": "NEW YORK ST HSG FIN AGY AFFORDABLE HSG REVENUE",
        "value": "3143053.75",
        "weight": "0.00531746",
        "shared": false
      },
      {
        "name": "LOS ANGELES CA DEPT OF ARPTS A REGD B/E AMT 5.00000000",
        "value": "3142415.10",
        "weight": "0.00531638",
        "shared": false
      },
      {
        "name": "ALLEGHENY HOSP DEV-A",
        "value": "3092031.90",
        "weight": "0.00523114",
        "shared": false
      },
      {
        "name": "WHITING IN ENVRNMNTL FACS REVE REGD V/R B/E AMT 5.00000000",
        "value": "3075758.09",
        "weight": "0.00520361",
        "shared": false
      },
      {
        "name": "MD CMNTY DEV-D-2",
        "value": "3035471.70",
        "weight": "0.00513545",
        "shared": false
      },
      {
        "name": "UNITED AIRLINES INC 4.0% 07-15-29",
        "value": "3018532.20",
        "weight": "0.00510680",
        "shared": false
      },
      {
        "name": "WASTE MANAGEMENT INC (MPT) 3.45% 11-01-44",
        "value": "3000298.80",
        "weight": "0.00507595",
        "shared": false
      },
      {
        "name": "NEW YORK NY REGD V/R B/E 2.65000000",
        "value": "3000000.00",
        "weight": "0.00507544",
        "shared": false
      },
      {
        "name": "NORTH CAROLINA ST HSG FIN AGYM REGD V/R B/E 5.00000000",
        "value": "2906436.68",
        "weight": "0.00491715",
        "shared": false
      },
      {
        "name": "TX TMGUTL 01/01/2054",
        "value": "2845828.47",
        "weight": "0.00481461",
        "shared": false
      },
      {
        "name": "FARM N MEX PCR 0% 6/1/2040 MT",
        "value": "2815916.35",
        "weight": "0.00476401",
        "shared": false
      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Refunding Series 2024B",
        "value": "2731069.46",
        "weight": "0.00462046",
        "shared": true
      },
      {
        "name": "DFW ARPT 5% 11/1/2031 @",
        "value": "2725976.00",
        "weight": "0.00461185",
        "shared": false
      },
      {
        "name": "FLORIDA DEV FIN CORP HLTHCAREFACS REVENUE",
        "value": "2707992.75",
        "weight": "0.00458142",
        "shared": false
      },
      {
        "name": "City of Atlanta GA Department of Aviation",
        "value": "2697235.25",
        "weight": "0.00456322",
        "shared": false
      },
      {
        "name": "TN TNSUTL 05/01/2053",
        "value": "2573669.50",
        "weight": "0.00435417",
        "shared": false
      },
      {
        "name": "City of Philadelphia PA Airport Revenue",
        "value": "2566634.16",
        "weight": "0.00434227",
        "shared": false
      },
      {
        "name": "FAIRFAX C VA 5% 1/1/2045 MT",
        "value": "2555159.50",
        "weight": "0.00432286",
        "shared": false
      },
      {
        "name": "WASTE MANAGEMENT INC (MPT) 3.45% 10-01-41",
        "value": "2515175.25",
        "weight": "0.00425521",
        "shared": true
      },
      {
        "name": "NORTH BLOCK ASSOCIATES LLC HUD SECT 8 FHA 221(D)(4) (MPT) 3.4% 02-01-29",
        "value": "2511564.25",
        "weight": "0.00424910",
        "shared": false
      },
      {
        "name": "COUNTY OF TRIMBLE KY TRMENV 06/33 FIXED 3.75",
        "value": "2502465.75",
        "weight": "0.00423371",
        "shared": false
      },
      {
        "name": "ARKANSAS DEV FIN AUTH ENVIRONM REGD V/R B/E AMT 4.00000000",
        "value": "2495967.00",
        "weight": "0.00422271",
        "shared": false
      },
      {
        "name": "MOBILE PCR-VAR-AL PWR",
        "value": "2478086.00",
        "weight": "0.00419246",
        "shared": false
      },
      {
        "name": "MTRO WA DC ARPT 5% 10/1/2031 @",
        "value": "2455847.33",
        "weight": "0.00415484",
        "shared": false
      },
      {
        "name": "LEHIGH PA_IDA 3% 9/1/2029",
        "value": "2450784.00",
        "weight": "0.00414627",
        "shared": true
      },
      {
        "name": "INDIANAPOLIS IN LOCAL PUBLIC I REGD N/C B/E AMT 5.00000000",
        "value": "2438325.30",
        "weight": "0.00412519",
        "shared": false
      },
      {
        "name": "State of Illinois, Series C",
        "value": "2437731.08",
        "weight": "0.00412419",
        "shared": true
      },
      {
        "name": "NORTHWESTERN CORP 3.875% 07-01-28",
        "value": "2431955.57",
        "weight": "0.00411442",
        "shared": false
      },
      {
        "name": "HOUSTON-UTL SYS-B-REF",
        "value": "2424190.04",
        "weight": "0.00410128",
        "shared": false
      },
      {
        "name": "DE ST EDA 3.60% 1/1/31",
        "value": "2419505.95",
        "weight": "0.00409335",
        "shared": false
      },
      {
        "name": "PEFA INC VAR",
        "value": "2408907.05",
        "weight": "0.00407542",
        "shared": false
      },
      {
        "name": "TENNERGY CORP TN GAS REVENUE TENNERGY CORP/TN",
        "value": "2384879.46",
        "weight": "0.00403477",
        "shared": false
      },
      {
        "name": "NY TRANS CORP 5% 1/1/2032 @",
        "value": "2370014.59",
        "weight": "0.00400962",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENERGY-F",
        "value": "2355034.34",
        "weight": "0.00398428",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENERGY AUTH VAR",
        "value": "2342301.03",
        "weight": "0.00396274",
        "shared": false
      },
      {
        "name": "South Carolina Jobs-Economic Development Authority, Series 2023A",
        "value": "2313365.26",
        "weight": "0.00391378",
        "shared": false
      },
      {
        "name": "MTRO WA DC ARPT 5% 10/1/2035 @",
        "value": "2304524.08",
        "weight": "0.00389883",
        "shared": false
      },
      {
        "name": "NYC HSG DEV CORP-F-2A",
        "value": "2260772.92",
        "weight": "0.00382481",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000820892-26-000163",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/820892/000082089226000163/0000820892-26-000163-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000940400-26-025147",
      "as_of": "2026-04-30",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1424212/000094040026025147/0000940400-26-025147-index.htm"
    }
  ]
}