iShares Russell 2000 ETF - small cap proxy (15-min delayed)
Why: Russell 2000 small cap proxy. Small cap outperformance signals broad risk appetite.
Category: macro. Macro economic indicators track monetary policy, liquidity conditions, and traditional market positioning. Changes in these metrics often lead Bitcoin price moves by days or weeks.
Source: Finnhub. Updated: 15-min delayed (market hours).
API: GET /api/metrics/etf-iwm