NDX Open Interest
NDX perpetual futures open interest totals $29.61M across 2 venues. Open interest is split across two venues: OSTIUM (85.9%, $25.44M) and VEST (14.1%, $4.17M).
NDX Per-Exchange Open Interest
| Exchange | Open Interest (USD) | OI Share | 24h OI Change | OI / Volume Ratio |
|---|---|---|---|---|
| OSTIUM | $25.44M | 85.9% | n/a | n/a |
| VEST | $4.17M | 14.1% | n/a | n/a |
Last updated 2026-06-01T20:53:57.960545Z (UTC).
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Related: NDX funding rate, NDX volume, NDX perp market data.