{
  "data_version": "seed-0.7 · marketcap-1 · 2026-08-30",
  "source": "https://finance.foundation",
  "license": {
    "finance_foundation_data": "CC BY 4.0 — attribution: Finance Foundation (https://finance.foundation)",
    "upstream_values": "Fields sourced from a provider carry their own source field and remain under that provider's terms — see https://finance.foundation/api/v1/sources"
  },
  "entity": "fund",
  "data": {
    "id": "vanguard-total-bond-market",
    "lei": "CIJB0QNLPT2SSWMJ5W92",
    "name": "Vanguard Total Bond Market ETF",
    "symbol": "BND",
    "type": "ETF",
    "manager": "Vanguard",
    "manager_company": null,
    "strategy": "US investment-grade bond index",
    "country": "united-states",
    "aum_usd_bn": 386.8,
    "description": "Broad exposure to the US investment-grade bond market, tracking the Bloomberg US Aggregate Float Adjusted Index. One of the largest fixed-income ETFs in the world.",
    "listed": true,
    "structure": {
      "listed": true,
      "ticker": "BND",
      "listing": {
        "market": "nasdaq",
        "segment_mic": "XNMS",
        "venue_name": "Nasdaq Global Market",
        "ticker": "BND",
        "currency": "USD"
      },
      "sec": {
        "cik": 794105,
        "series_id": "S000002564",
        "series_name": "Vanguard Total Bond Market Index Fund",
        "class_id": "C000046844",
        "entity_name": "VANGUARD BOND INDEX FUNDS"
      },
      "classes": [
        {
          "ticker": "BND",
          "class_id": "C000046844",
          "name": "ETF Shares"
        },
        {
          "ticker": "VBMFX",
          "class_id": "C000007062",
          "name": "Investor Shares"
        },
        {
          "ticker": "VBMPX",
          "class_id": "C000081425",
          "name": "Institutional Plus Shares"
        },
        {
          "ticker": "VBTIX",
          "class_id": "C000007064",
          "name": "Institutional Shares"
        },
        {
          "ticker": "VBTLX",
          "class_id": "C000007063",
          "name": "Admiral Shares"
        },
        {
          "ticker": "VTBSX",
          "class_id": "C000170279",
          "name": "Institutional Select Shares"
        }
      ],
      "tracks": null,
      "tracks_note": "Tracks a Bloomberg US aggregate bond index, which we do not cover.",
      "route": "SEC series/class",
      "note": "A fund is not the same thing as a ticker. Where `classes` holds more than one entry they are share classes of ONE portfolio — same holdings, same manager, different terms — and in Vanguard's case the ETF is itself a class of the mutual fund. Series and class identifiers come from the SEC's Investment Company Series and Class report. `listed: false` means the entry is an institutional pool with no units to buy, which is why it has no ticker.",
      "market_link": "https://finance.foundation/api/v1/markets/nasdaq",
      "tracks_link": null
    },
    "aum_seed_usd_bn": 130,
    "size": {
      "usd": 386757079103,
      "basis": "net assets of the whole series, all share classes",
      "as_of": "2026-03-31",
      "form": "NPORT-P",
      "filed": "2026-05-28",
      "source": "SEC N-PORT data set",
      "series_lei": "CIJB0QNLPT2SSWMJ5W92",
      "series_name": "VANGUARD TOTAL BOND MARKET INDEX FUND",
      "url": "https://www.sec.gov/data-research/sec-markets-data/form-n-port-data-sets",
      "note": "`basis` says what is counted, because how big a fund is has more than one honest answer: a filing reports the whole series while a quote screen shows one share class. `aum_seed_usd_bn` on the entity is the earlier undated figure, kept so the two can be compared."
    }
  },
  "field_provenance": {
    "aum_usd_bn": "Finance Foundation seed reference value compiled from the manager's published disclosures, approximate, Q2 2026 — AUM moves daily."
  },
  "links": {
    "html": "https://finance.foundation/funds/vanguard-total-bond-market",
    "graph": "https://finance.foundation/api/v1/graph/funds/vanguard-total-bond-market",
    "sources": "https://finance.foundation/api/v1/sources"
  }
}