{
  "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": "ishares-russell-2000",
    "lei": "549300O80OAR5VTWR172",
    "name": "iShares Russell 2000 ETF",
    "symbol": "IWM",
    "type": "ETF",
    "manager": "BlackRock (iShares)",
    "manager_company": "blackrock",
    "strategy": "Passive — tracks the Russell 2000 small-cap index",
    "country": "united-states",
    "aum_usd_bn": 71.9,
    "description": "The main way institutions take a position in US small caps, and the reference vehicle for the Russell 2000 — the index the market watches for whether a rally has breadth beyond the megacaps.",
    "listed": true,
    "structure": {
      "listed": true,
      "ticker": "IWM",
      "listing": {
        "market": "nyse",
        "segment_mic": "ARCX",
        "venue_name": "NYSE Arca",
        "ticker": "IWM",
        "currency": "USD"
      },
      "sec": {
        "cik": 1100663,
        "series_id": "S000004344",
        "series_name": "iShares Russell 2000 ETF",
        "class_id": "C000012074",
        "entity_name": "iSHARES TRUST"
      },
      "classes": [
        {
          "ticker": "IWM",
          "class_id": "C000012074",
          "name": "iShares Russell 2000 ETF"
        }
      ],
      "tracks": "russell-2000",
      "tracks_note": null,
      "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/nyse",
      "tracks_link": "https://finance.foundation/api/v1/assets/russell-2000"
    },
    "aum_seed_usd_bn": 71.9,
    "size": {
      "usd": 71900000000,
      "basis": "net assets of the whole series, all share classes",
      "as_of": "2026-03-31",
      "form": "NPORT-P",
      "filed": null,
      "source": "SEC N-PORT data set",
      "series_lei": "549300O80OAR5VTWR172",
      "series_name": "iShares Russell 2000 ETF",
      "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/ishares-russell-2000",
    "graph": "https://finance.foundation/api/v1/graph/funds/ishares-russell-2000",
    "sources": "https://finance.foundation/api/v1/sources"
  }
}