The archived board for 2026-10-21: the most-traded option contracts that day among the US underlyings this board scans, ranked by single-contract volume, as captured by the last board scan before 16:38 ET. Cboe data, ~15-min delayed. · Data as of 2026-10-21 20:11
| Ticker | Type | Strike | Expiry | Vol | OI | Vol/OI | IV |
|---|---|---|---|---|---|---|---|
| SPY | CALL | $775 | Oct 21 | 665.3K | 7.0K | 94.6× | 30% |
| SPY | CALL | $776 | Oct 21 | 616.5K | 6.9K | 89.4× | 31% |
| SPY | CALL | $773 | Oct 21 | 610.5K | 11.4K | 53.8× | 29% |
| SPY | CALL | $774 | Oct 21 | 577.2K | 6.2K | 92.5× | 29% |
| SPY | PUT | $770 | Oct 21 | 538.1K | 5.4K | 100.5× | 34% |
| SPY | CALL | $772 | Oct 21 | 501.4K | 4.7K | 107.5× | 29% |
| SPY | PUT | $772 | Oct 21 | 482.8K | 2.5K | 192.0× | 31% |
| SPY | PUT | $771 | Oct 21 | 466.4K | 2.8K | 169.3× | 32% |
| SPY | PUT | $769 | Oct 21 | 404.3K | 5.1K | 79.3× | 38% |
| SPY | CALL | $777 | Oct 21 | 400.6K | 7.2K | 55.4× | 31% |
| SPY | CALL | $771 | Oct 21 | 384.8K | 5.6K | 69.3× | 29% |
| SPY | PUT | $773 | Oct 21 | 381.4K | 2.3K | 169.3× | 30% |
| NVDA | CALL | $222.5 | Oct 21 | 363.8K | 24.5K | 14.8× | 79% |
| SPY | PUT | $768 | Oct 21 | 360.3K | 5.6K | 64.8× | 42% |
| QQQ | CALL | $725 | Oct 21 | 333.1K | 7.4K | 45.2× | 57% |
| QQQ | CALL | $726 | Oct 21 | 326.6K | 3.3K | 99.9× | 57% |
| QQQ | CALL | $727 | Oct 21 | 311.9K | 2.9K | 107.2× | 56% |
| QQQ | CALL | $728 | Oct 21 | 295.6K | 2.6K | 114.7× | 55% |
| QQQ | PUT | $725 | Oct 21 | 262.5K | 1.0K | 261.2× | 56% |
| NVDA | PUT | $220 | Oct 21 | 245.9K | 6.6K | 37.3× | 97% |
| NVDA | CALL | $220 | Oct 21 | 243.6K | 24.0K | 10.2× | 90% |
| SPY | CALL | $770 | Oct 21 | 237.6K | 7.7K | 30.7× | 27% |
| QQQ | PUT | $722 | Oct 21 | 230.0K | 1.1K | 217.4× | 56% |
| AAPL | CALL | $345 | Oct 21 | 228.2K | 9.1K | 25.2× | 35% |
| SPY | PUT | $774 | Oct 21 | 227.7K | 2.8K | 80.4× | 31% |
| QQQ | PUT | $720 | Oct 21 | 214.1K | 4.4K | 48.1× | 59% |
| QQQ | PUT | $726 | Oct 21 | 212.7K | 652 | 326.2× | 56% |
| QQQ | CALL | $724 | Oct 21 | 209.5K | 3.0K | 70.6× | 57% |
| SPY | PUT | $767 | Oct 21 | 204.1K | 4.4K | 46.3× | 48% |
| QQQ | PUT | $723 | Oct 21 | 203.2K | 900 | 225.8× | 56% |
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https://www.tickwind.com/en/unusual/2026-10-21Suggested citation
Unusual options activity for 2026-10-21 — Tickwind (tickwind.com), Cboe 15-min delayed data.