BlackRock fund and ETF data - listings, performance, and portfolio holdings.
Fund Holdings
ASYNCREADNo auth
Returns a fund's full holdings including securities, weights, CUSIP/ISIN, and market values.
ParametersFormJSON
BlackRock numeric portfolio/product id from the fund URL path (portfolioId query param)
Locale for the product-data API (e.g. en_US)
Holdings as-of date in YYYYMMDD format (asOfDate query param)
cost: 2 credits · balance: 0
curl https://api.openwire.sh/v1/wire/task \ -X POST \ -H "X-API-Key: $ANAKIN_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "action_id": "act_blackrock_fund_holdings", "params": { "portfolio_id": "314116", "locale": "en_US", "as_of_date": "20260529" } }'