Index depth is a static-book estimate for the index, not the mark. Static-book estimates from public exchange data. Not a real cost to move any price, not a mark-price forecast, and not trading advice. Methodology and limitations · Constituent changes · All perps
Indexes: OKX OL-USDT-SWAP
OKX OL-USDT-SWAP index
index OL-USDT · constituents 2026-10-01 15:25Z · coverage StaleComposition and constituent price vs index median (observed)
| Constituent | Pair | Type | Weight | Price | vs median | Guard |
|---|---|---|---|---|---|---|
| Gate | OL/USDT | spot | 50.0% | 0.006684 | -0.31% | |
| OKX | OL/USDT | spot | 50.0% | 0.006725 | +0.31% |
Prices as published by OKX with the composition (2026-10-01 15:25Z). Widest constituent spread 0.61%. Guard: OKX caps a source more than 2% from the median (exchange doc, rule set okx-swap-2026-09-11). Modelled index from these prices: 0.0067045.
Mark and index
Observed mark prices for OKX perps are not tracked here yet.
Index depth and est. liquidation exposure
Stale Stale: last estimate is 54 min old. Figures are shown greyed and alerts are paused.
| Range | Index depth (est.) | Depth / OI | Est. liquidation exposure | of which observed | Exposure-to-depth ratio (est.) |
|---|---|---|---|---|---|
| +2% | $15k | - | - | - | - |
| +5% | $19k | - | - | - | - |
| -2% | $17k | - | - | - | - |
| -5% | $21k | - | - | - | - |
Sensitivity (uncalibrated). Index depth to +5% under 0.5x $9.4k, 1x $19k, 2x $38k book refill. Index depth to -5% under 0.5x $11k, 1x $21k, 2x $43k book refill. The multipliers are assumptions, not fitted to observed events.
Coverage 50% of index weight modelled; held fixed: Gate OL/USDT. Included OI $0 (n/a complete, exposure none). Confidence low. Estimate 2026-10-01 15:29Z, books 2026-10-01 15:31Z, exposure n/a. Models: static-book v1; okx-swap-2026-09-11; liq-in-range v1; prior hl-2026-09-27.
Constituent divergence history, last 30 days
No constituent divergence recorded for OL in the last 30 days.
Index, not mark. Index depth is a static-book estimate of resting spot liquidity between the index and the stated move, after the exchange's guard. Liquidations use the mark price, which also follows the perp's own price and basis. Static-book estimates from public exchange data. Not a real cost to move any price, not a mark-price forecast, and not trading advice.
Method. Constituents and weights come from each exchange's public index API, refreshed hourly. Spot order books are sampled every 5 minutes. Sources we cannot read are held fixed, so the figure is neither an upper nor a lower bound. See how mark and index prices work and the constituent change log.