OI-weighted mark price

Selected: binance:perp:BTCUSDT. Seven days of completed hourly endpoints through 2026-10-25 22:00 UTC. 168 / 168 hourly comparisons available. Each compares the same contract’s recorded mark with the preceding 24 hours of five-minute observations.

Latest eligible endpoint: 2026-10-25 22:00 UTC. Mark $80,276.62 · 24h OIWAP $80,581.46 · Distance -0.38%. Mark observation: 2026-10-25 21:55 UTC. Paired samples: 287 / 288 (partial coverage).

Formula: OIWAP = Σ(markᵢ × oi_usdᵢ) / Σ(oi_usdᵢ). Weights are USD open-interest stock observed in each slot, not OI changes or traded volume. Each hourly endpoint E uses the window [E − 24h, E), with 288 expected five-minute slots. The mark line uses only the exact observation at E − 5 minutes. Distance = 100 × (mark / OIWAP − 1).

At least 260 / 288 distinct slots must have a positive recorded mark and nonnegative USD OI in the same row, with positive total OI weight and a valid exact endpoint mark. Zero OI counts as an observed slot and contributes zero weight. Duplicate, invalid, off-grid and future observations are excluded. No forward-fill, last-price, spot or other venue fallback is used. Chart paths break at ineligible hourly endpoints; partial coverage is labelled below.

This is a statistical reference, not traders’ average entry, cost basis, realized support or a directional forecast. USD OI stock can change with price alone. This page uses stored Binance observations; it does not reconstruct positions or trades. The latest eligible endpoint is stale after two hours. Apply a coin selection and copy the URL to share it.