NDX Open Interest
NDX perpetual futures open interest totals $93.78M across 2 venues. Open interest is split across two venues: OSTIUM (94.4%, $88.50M) and VEST (5.6%, $5.28M).
NDX Per-Exchange Open Interest
| Exchange | Open Interest (USD) | OI Share | 24h OI Change | OI / Volume Ratio |
|---|---|---|---|---|
| OSTIUM | $88.50M | 94.4% | n/a | n/a |
| VEST | $5.28M | 5.6% | n/a | n/a |
Last updated 2026-07-16T20:40:37Z (UTC).
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Related: NDX funding rate, NDX volume, NDX perp market data.