Taker Buy Sell

Taker buy/sell volume ratio by exchange, per coin (4h window).

buy_ratio is a PERCENT (0..100) of taker volume that was buying, per exchange leg. Two legs exist: Binance (BTC only, from its public taker-volume endpoint) and, since 2026-09-09, Hyperliquid — the collector's own trade tape (see /hyperliquid/trade-flow), notional weighted over the trailing 4h, for every HL perp with fills. A coin only HL carries gets its own top-level entry whose aggregate is the HL figure. No Hyperliquid leg at all means the tape is warming or the pull is not configured — never that HL had no trades.