{
 "ticker": "MUB",
 "name": "iShares National Muni Bond ETF",
 "issuer": "iShares",
 "desk": "core",
 "url": "https://etfiq.com/funds/mub",
 "html": "https://etfiq.com/funds/mub",
 "markdown": "https://etfiq.com/funds/mub.md",
 "as_of": "2026-10-28",
 "verdict": "MUB tracks an index of National Muni Bond and returned \u22120.4% over the past year.",
 "lead": "MUB returned \u22120.4% over the year to Oct 28, 2026, charges 0.05% a year and holds $54.1bn in net assets on Oct 27, 2026.",
 "category": {
  "id": "bonds",
  "name": "Bonds",
  "label": "Bond ETFs",
  "url": "https://etfiq.com/bonds/",
  "group": {
   "id": "municipal-bonds",
   "name": "Municipal bonds"
  },
  "segment": {
   "id": "muni-national-long",
   "name": "Municipal, national, long",
   "url": "https://etfiq.com/bonds/muni-national-long/"
  },
  "status": "classified",
  "as_of": "2026-10-29",
  "method": "https://etfiq.com/methodology/categories"
 },
 "promise": {
  "badge": "delivered",
  "label": "Delivered",
  "category": "bonds",
  "sentence": "As of Aug 31, 2026, MUB held 99.5% of net assets in municipal bonds.",
  "figure": 99.5,
  "unit": "% of net assets",
  "from": "2026-08-31",
  "to": "2026-08-31",
  "url": "https://etfiq.com/promise-index/bonds/"
 },
 "key_facts": [
  {
   "key": "total_return_1_year",
   "label": "Total return, 1 year",
   "value": "\u22120.4%",
   "source": "computed by ETFIQ from Tiingo daily prices",
   "as_of": "2026-10-28",
   "sentence": "MUB, total return, 1 year: \u22120.4%, as of Oct 28, 2026.",
   "cite": {
    "value": "\u22120.4%",
    "as_of": "2026-10-28",
    "source": "computed by ETFIQ from Tiingo daily prices",
    "url": "https://etfiq.com/funds/mub#fact-total-return-1-year",
    "text": "MUB, total return, 1 year: \u22120.4%, as of Oct 28, 2026."
   }
  },
  {
   "key": "expense_ratio",
   "label": "Expense ratio",
   "value": "0.05%",
   "source": "485BPOS XBRL, Jun 18, 2026",
   "as_of": "2026-06-18",
   "sentence": "MUB, expense ratio: 0.05%, as of Jun 18, 2026.",
   "cite": {
    "value": "0.05%",
    "as_of": "2026-06-18",
    "source": "485BPOS XBRL, Jun 18, 2026",
    "url": "https://etfiq.com/funds/mub#fact-expense-ratio",
    "text": "MUB, expense ratio: 0.05%, as of Jun 18, 2026."
   }
  },
  {
   "key": "holdings",
   "label": "Holdings",
   "value": "7873",
   "source": "the issuer\u2019s daily holdings file",
   "as_of": "2026-10-27",
   "sentence": "MUB, holdings: 7873, as of Oct 27, 2026.",
   "cite": {
    "value": "7873",
    "as_of": "2026-10-27",
    "source": "the issuer\u2019s daily holdings file",
    "url": "https://etfiq.com/funds/mub#fact-holdings",
    "text": "MUB, holdings: 7873, as of Oct 27, 2026."
   }
  },
  {
   "key": "below_its_high",
   "label": "Below its high",
   "value": "\u22122.7%",
   "source": "ETFIQ",
   "as_of": "2026-10-28",
   "sentence": "MUB, below its high: \u22122.7%, as of Oct 28, 2026.",
   "cite": {
    "value": "\u22122.7%",
    "as_of": "2026-10-28",
    "source": "ETFIQ",
    "url": "https://etfiq.com/funds/mub#fact-below-its-high",
    "text": "MUB, below its high: \u22122.7%, as of Oct 28, 2026."
   }
  },
  {
   "key": "12_month_yield_capital_gains_included_on_its_starting_price",
   "label": "12-month yield, capital gains included, on its starting price",
   "value": "3.2%",
   "source": "computed by ETFIQ from Tiingo daily prices and distributions",
   "as_of": "2026-10-28",
   "sentence": "MUB, 12-month yield, capital gains included, on its starting price: 3.2%, as of Oct 28, 2026.",
   "cite": {
    "value": "3.2%",
    "as_of": "2026-10-28",
    "source": "computed by ETFIQ from Tiingo daily prices and distributions",
    "url": "https://etfiq.com/funds/mub#fact-12-month-yield-capital-gains-included-on-its-starting-price",
    "text": "MUB, 12-month yield, capital gains included, on its starting price: 3.2%, as of Oct 28, 2026."
   }
  },
  {
   "key": "last_payment",
   "label": "Last payment (paid monthly), ex-date Oct 1, 2026",
   "value": "$0.2793",
   "source": "Tiingo end-of-day distributions",
   "as_of": "2026-10-01",
   "sentence": "MUB, last payment (paid monthly), ex-date Oct 1, 2026: $0.2793, as of Oct 1, 2026.",
   "cite": {
    "value": "$0.2793",
    "as_of": "2026-10-01",
    "source": "Tiingo end-of-day distributions",
    "url": "https://etfiq.com/funds/mub#fact-last-payment",
    "text": "MUB, last payment (paid monthly), ex-date Oct 1, 2026: $0.2793, as of Oct 1, 2026."
   }
  },
  {
   "key": "net_assets",
   "label": "Net assets",
   "value": "$54.1bn",
   "source": "the issuer\u2019s own daily fund list, as of Oct 27, 2026",
   "as_of": "2026-10-27",
   "sentence": "MUB, net assets: $54.1bn (the issuer\u2019s own daily fund list, as of Oct 27, 2026).",
   "cite": {
    "value": "$54.1bn",
    "as_of": "2026-10-27",
    "source": "the issuer\u2019s own daily fund list, as of Oct 27, 2026",
    "url": "https://etfiq.com/funds/mub#fact-net-assets",
    "text": "MUB, net assets: $54.1bn (the issuer\u2019s own daily fund list, as of Oct 27, 2026)."
   }
  }
 ],
 "fields": [
  {
   "key": "what_it_tracks",
   "label": "What it tracks",
   "value": "ICE AMT-Free US National Municipal Index",
   "source": null
  },
  {
   "key": "fund_type",
   "label": "Fund type",
   "value": "Bond fund",
   "source": null
  },
  {
   "key": "category",
   "label": "Category",
   "value": "Bonds \u00b7 Municipal, national, long",
   "source": "ETFIQ"
  },
  {
   "key": "expense_ratio",
   "label": "Expense ratio",
   "value": "0.05%",
   "source": "485BPOS XBRL, Jun 18, 2026"
  },
  {
   "key": "price",
   "label": "Price",
   "value": "$103.76",
   "source": null
  },
  {
   "key": "first_traded",
   "label": "First traded",
   "value": "Sep 10, 2007",
   "source": null
  },
  {
   "key": "net_assets",
   "label": "Net assets",
   "value": "$54.1bn",
   "source": "the issuer\u2019s own daily fund list, as of Oct 27, 2026"
  },
  {
   "key": "benchmark",
   "label": "Benchmark",
   "value": "Its own holdings, as of Oct 27, 2026; no other fund tracks the ICE AMT-Free US National Municipal Index, the index its prospectus names",
   "source": "ETFIQ, from its filings"
  },
  {
   "key": "below_its_high",
   "label": "Below its high",
   "value": "\u22122.7%",
   "source": "ETFIQ"
  },
  {
   "key": "holdings",
   "label": "Holdings",
   "value": "7873",
   "source": null
  },
  {
   "key": "top_ten_weight",
   "label": "Top ten weight",
   "value": "1.2%",
   "source": null
  },
  {
   "key": "holdings_published_for",
   "label": "Holdings published for",
   "value": "Oct 27, 2026",
   "source": "the issuer\u2019s daily file"
  },
  {
   "key": "holdings_as_of_the_close_of",
   "label": "Holdings as of the close of",
   "value": "Oct 27, 2026",
   "source": "the issuer\u2019s daily file"
  }
 ],
 "periods": [
  {
   "window": "1 month",
   "Total return": "+3.4%"
  },
  {
   "window": "3 months",
   "Total return": "\u22121.1%"
  },
  {
   "window": "6 months",
   "Total return": "\u22121.5%"
  },
  {
   "window": "Year to date",
   "Total return": "\u22120.8%"
  },
  {
   "window": "1 year",
   "Total return": "\u22120.4%"
  },
  {
   "window": "3 years",
   "Total return": "+12.5%"
  },
  {
   "window": "5 years",
   "Total return": "+2.7%"
  },
  {
   "window": "10 years",
   "Total return": "+19.7%"
  },
  {
   "window": "Since launch",
   "Total return": "+74.3%"
  },
  {
   "window": "Since launch, annualised",
   "Total return": "+2.9%"
  }
 ],
 "questions": [
  {
   "q": "How has MUB performed?",
   "a": "Over the year to Oct 28, 2026, MUB returned \u22120.4% with distributions reinvested. Over three years the number is +12.5%."
  },
  {
   "q": "What does MUB cost?",
   "a": "The prospectus expense ratio is 0.05% a year."
  },
  {
   "q": "How far is MUB below its high?",
   "a": "2.7% below its high of Jul 6, 2026, measured on the reinvested series to Oct 28, 2026."
  }
 ],
 "key_stats": [
  {
   "key": "high52",
   "label": "52-week high, daily closes to Oct 28, 2026",
   "value": "$108.92 on Feb 27, 2026",
   "as_of": "2026-02-27",
   "source": "computed by ETFIQ from Tiingo daily prices",
   "number": 108.92,
   "window": {
    "from": "2025-10-29",
    "to": "2026-10-28"
   }
  },
  {
   "key": "low52",
   "label": "52-week low, daily closes to Oct 28, 2026",
   "value": "$100.28 on Sep 29, 2026",
   "as_of": "2026-09-29",
   "source": "computed by ETFIQ from Tiingo daily prices",
   "number": 100.28,
   "window": {
    "from": "2025-10-29",
    "to": "2026-10-28"
   }
  },
  {
   "key": "inrange",
   "label": "Close on Oct 28, 2026, within that range",
   "value": "$103.76, 40% of the way from the low to the high",
   "as_of": "2026-10-28",
   "source": "computed by ETFIQ from Tiingo daily prices",
   "number": 103.76
  },
  {
   "key": "holdings",
   "label": "Holdings",
   "value": "7873",
   "as_of": "2026-10-28",
   "source": null
  },
  {
   "key": "top10",
   "label": "Top ten weight",
   "value": "1.2%",
   "as_of": "2026-10-28",
   "source": null
  }
 ],
 "trading": {
  "as_of": "2026-10-27",
  "score": 93,
  "tier": "Trades like a giant",
  "status": "scored",
  "lines": [
   "IQ Liquidity Score 93, Trades like a giant, 82nd percentile of 200 bonds ETFs.",
   "Trades like a giant: trades at a typical spread of 0.01%.",
   "$1,000: about $0.05, 0.005%, one way.",
   "$10,000: about $0.50, 0.005%, one way.",
   "Full cost to own, 1 year at $10,000: 0.21%, against 0.05% for the fee alone.",
   "Premium to NAV at the Oct 27 close: +0.22%; 95% of days within \u00b10.31%.",
   "Limit: midpoint + 1\u00a2 to buy, midpoint \u2212 1\u00a2 to sell. At the Oct 27 close of $103.87, that\u2019s $103.88 to buy and $103.86 to sell."
  ],
  "page": "https://etfiq.com/funds/mub/trading/"
 },
 "flows": {
  "as_of": "2026-10-23",
  "coverage": "daily",
  "computed_by": "ETFIQ, from the change in shares outstanding times the previous day\u2019s NAV",
  "method": "https://etfiq.com/methodology/flows",
  "data": "https://etfiq.com/data/flows/funds/mub.json",
  "windows": [
   {
    "window": "1 week",
    "from": "2026-10-21",
    "to": "2026-10-23",
    "net_flow_usd": 1570768324,
    "net_flow": "+$1.6bn",
    "round_trip_usd": 0,
    "days_counted": 3,
    "trading_days": 3
   },
   {
    "window": "1 month",
    "from": "2026-09-28",
    "to": "2026-10-23",
    "net_flow_usd": 7160885933,
    "net_flow": "+$7.2bn",
    "round_trip_usd": 0,
    "days_counted": 20,
    "trading_days": 20
   },
   {
    "window": "3 months",
    "from": "2026-07-28",
    "to": "2026-10-23",
    "net_flow_usd": 9557361846,
    "net_flow": "+$9.6bn",
    "round_trip_usd": 0,
    "days_counted": 63,
    "trading_days": 63
   },
   {
    "window": "Year to date",
    "from": "2026-01-02",
    "to": "2026-10-23",
    "net_flow_usd": 13770028191,
    "net_flow": "+$13.8bn",
    "round_trip_usd": 0,
    "days_counted": 204,
    "trading_days": 204
   },
   {
    "window": "1 year",
    "from": "2025-10-28",
    "to": "2026-10-23",
    "net_flow_usd": 14809459355,
    "net_flow": "+$14.8bn",
    "round_trip_usd": 0,
    "days_counted": 249,
    "trading_days": 249
   }
  ]
 },
 "generated": "2026-10-29",
 "license": "https://etfiq.com/license/",
 "license_text": "Data ETFIQ computes is free to use with attribution: ETFIQ (etfiq.com). Issuer data stays under its owner's terms.",
 "citation": "ETFIQ, MUB, bond fund, data as of Oct 28, 2026. https://etfiq.com/funds/mub"
}