S&P 100 Index (OEX) Options History
Historical options analytics archive for OEX with monthly max pain, implied volatility, gamma exposure, and put/call data.
233 months of complete options data available.
OEX monthly aggregates
Month-by-month rollups derived from the daily snapshot archive for OEX. Volatility and put/call columns are averages across trading days within the month; max pain, net GEX, and net DEX are the end-of-month values (last trading day of the month).
| Month | Days | Avg ATM IV | Avg IV Rank | End Max Pain | End Net GEX | End Net DEX | Avg P/C |
|---|---|---|---|---|---|---|---|
| 2026-05 | 20 | 15.5% | 37.5% | $3400.00 | $933.0K | -$7.1M | 0.61 |
| 2026-04 | 21 | 17.7% | 34.6% | $3200.00 | $1.9M | -$7.9M | 1.25 |
| 2026-03 | 22 | 22.3% | 38.5% | $3180.00 | $589.2K | -$2.5M | 0.65 |
| 2026-02 | 19 | 17.2% | 24.2% | $4060.00 | $1.4M | -$3.0M | 1.64 |
| 2026-01 | 20 | 12.8% | 11.8% | $3350.00 | $1.3M | -$4.8M | 0.69 |
| 2025-12 | 22 | 13.2% | 13.0% | $3200.00 | $638.3K | -$2.2M | 2.03 |
2026
2025
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2024
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2023
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2022
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2021
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2020
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