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ATM IV percentile, min–max rank, z-score, and ring VRP on session / 7d / 30d from stored listed ATM IV (kpi_history) when those samples exist — not a 1y exchange percentile. Thin windows stay —. Share copies %ile + VRP + sources. Research terminal.
7d / 30d use listed ATM IV stored in kpi_history. Thin or short windows stay —. Percentile, min–max rank, z-score, and ring VRP follow this window — not a 1y exchange percentile.
IV percentile
Fraction of session ATM IV samples at or below current. Not a 1y exchange rank. 3 samples in this window.
As of 9/28/2026, 1:59:33 PM
| Level | IV | vs now |
|---|---|---|
| Min | 112.6% | 0.0 pts |
| p25 | 112.6% | +0.1 pts |
| Median | 112.7% | +0.1 pts |
| Mean | 112.8% | +0.3 pts |
| p75 | 113.0% | +0.4 pts |
| Max | 113.3% | +0.7 pts |
| Now | 112.6% | — |
Percentile, min–max rank, z-score, and ring VRP use this lookback window on the history ring — not a 1y exchange series. Sources: live · derive chain · ATM IV from history ring · RV from spots. Thin samples stay —. Options research only (no OMS).