# Biggest options open interest changes

OI settled 2026-10-12 vs 2026-10-09.

> Open interest change, not trades; it does not say which side opened or closed.

Source: SquawkFlow's own nightly archive of Cboe settled open interest. Updates once per session. Figures are contracts, not dollars: the archive holds no option prices.

210 of 214 archived US symbols compared. The other 4 lacked a consecutive settlement pair in the archive for these two sessions. 4 of those compared reported an identical book in both sessions.

Across the compared symbols: 101,690 contracts changed open interest, +7,402,906 added, -1,261,884 removed, net +6,141,022 contracts.

## Largest open interest increases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| NVDA | 2027-01-15 | 100 | put | 185,601 | 455,723 | +270,122 |
| NVDA | 2027-01-15 | 150 | put | 136,835 | 316,906 | +180,071 |
| XLP | 2026-12-18 | 80 | put | 4,462 | 74,411 | +69,949 |
| SPY | 2026-10-15 | 737 | put | 96 | 41,339 | +41,243 |
| SPY | 2026-10-15 | 738 | put | 152 | 37,900 | +37,748 |
| WMB | 2026-11-20 | 85 | call | 2,052 | 39,608 | +37,556 |
| SNAP | 2026-12-18 | 8 | call | 1,650 | 38,393 | +36,743 |
| NVDA | 2026-10-14 | 242.5 | call | 1,882 | 36,023 | +34,141 |
| WMB | 2026-11-20 | 75 | call | 7,239 | 39,002 | +31,763 |
| EWZ | 2026-11-20 | 40 | put | 11,714 | 41,755 | +30,041 |
| PLTR | 2026-12-18 | 160 | put | 5,483 | 33,167 | +27,684 |
| TLT | 2026-11-20 | 79 | call | 34,149 | 55,744 | +21,595 |
| SPY | 2026-10-13 | 747 | put | 70 | 20,892 | +20,822 |
| SPY | 2026-10-21 | 620 | put | 5 | 20,647 | +20,642 |
| EWZ | 2026-11-20 | 32 | put | 26,392 | 46,329 | +19,937 |
| IWM | 2026-10-14 | 285 | call | 1,284 | 20,419 | +19,135 |
| QQQ | 2026-10-16 | 655 | put | 9,103 | 27,322 | +18,219 |
| SPY | 2026-10-21 | 625 | put | 0 | 17,781 | +17,781 |
| FISV | 2026-11-20 | 50 | call | 1,256 | 17,818 | +16,562 |
| SPX | 2027-04-16 | 8,350 | call | 820 | 16,276 | +15,456 |

## Largest open interest decreases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| XLP | 2026-12-18 | 78 | put | 95,244 | 15,311 | -79,933 |
| WMB | 2026-11-20 | 95 | call | 75,300 | 26,837 | -48,463 |
| WMB | 2026-11-20 | 80 | call | 77,207 | 31,894 | -45,313 |
| SMR | 2026-10-16 | 11 | put | 14,389 | 7 | -14,382 |
| NU | 2026-11-20 | 14 | call | 131,244 | 117,749 | -13,495 |
| ORCL | 2026-10-23 | 155 | call | 19,501 | 8,663 | -10,838 |
| SPY | 2026-10-16 | 785 | call | 73,902 | 63,491 | -10,411 |
| TLT | 2026-12-18 | 73 | put | 167,295 | 157,333 | -9,962 |
| FXI | 2026-11-20 | 33 | put | 28,208 | 18,347 | -9,861 |
| TLT | 2026-12-18 | 85 | call | 69,451 | 59,803 | -9,648 |
| SPY | 2026-10-23 | 790 | call | 19,691 | 10,536 | -9,155 |
| BAC | 2026-10-30 | 50 | put | 10,264 | 2,504 | -7,760 |
| SPX | 2027-03-31 | 8,100 | call | 19,977 | 12,812 | -7,165 |
| EWZ | 2026-11-20 | 42 | call | 233,364 | 226,251 | -7,113 |
| EWZ | 2026-10-16 | 41 | call | 47,682 | 40,570 | -7,112 |
| SPX | 2027-03-31 | 8,150 | call | 19,512 | 12,451 | -7,061 |
| NIO | 2026-10-16 | 4 | put | 14,935 | 8,001 | -6,934 |
| IWM | 2026-10-23 | 277 | put | 33,783 | 26,869 | -6,914 |
| XLU | 2026-10-16 | 42 | call | 43,339 | 36,563 | -6,776 |
| QQQ | 2026-10-16 | 770 | call | 46,764 | 40,855 | -5,909 |

## Index ETFs (SPY, QQQ, IWM, DIA)

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-10-15 | 737 | put | 96 | 41,339 | +41,243 |
| SPY | 2026-10-15 | 738 | put | 152 | 37,900 | +37,748 |
| SPY | 2026-10-13 | 747 | put | 70 | 20,892 | +20,822 |
| SPY | 2026-10-21 | 620 | put | 5 | 20,647 | +20,642 |
| IWM | 2026-10-14 | 285 | call | 1,284 | 20,419 | +19,135 |
| QQQ | 2026-10-16 | 655 | put | 9,103 | 27,322 | +18,219 |
| SPY | 2026-10-21 | 625 | put | 0 | 17,781 | +17,781 |
| QQQ | 2026-10-30 | 770 | call | 9,498 | 23,859 | +14,361 |
| QQQ | 2026-11-20 | 760 | call | 28,403 | 41,395 | +12,992 |
| SPY | 2026-10-14 | 733 | put | 689 | 13,537 | +12,848 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-10-16 | 785 | call | 73,902 | 63,491 | -10,411 |
| SPY | 2026-10-23 | 790 | call | 19,691 | 10,536 | -9,155 |
| IWM | 2026-10-23 | 277 | put | 33,783 | 26,869 | -6,914 |
| QQQ | 2026-10-16 | 770 | call | 46,764 | 40,855 | -5,909 |
| QQQ | 2026-10-16 | 750 | call | 38,559 | 35,763 | -2,796 |
| QQQ | 2026-10-16 | 715 | put | 16,544 | 14,489 | -2,055 |
| QQQ | 2026-10-30 | 760 | call | 11,689 | 9,672 | -2,017 |
| IWM | 2027-01-15 | 270 | put | 51,301 | 49,367 | -1,934 |
| QQQ | 2026-10-30 | 737 | put | 4,391 | 2,493 | -1,898 |
| IWM | 2026-10-16 | 280 | put | 82,111 | 80,310 | -1,801 |

## Single stocks

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| NVDA | 2027-01-15 | 100 | put | 185,601 | 455,723 | +270,122 |
| NVDA | 2027-01-15 | 150 | put | 136,835 | 316,906 | +180,071 |
| WMB | 2026-11-20 | 85 | call | 2,052 | 39,608 | +37,556 |
| SNAP | 2026-12-18 | 8 | call | 1,650 | 38,393 | +36,743 |
| NVDA | 2026-10-14 | 242.5 | call | 1,882 | 36,023 | +34,141 |
| WMB | 2026-11-20 | 75 | call | 7,239 | 39,002 | +31,763 |
| PLTR | 2026-12-18 | 160 | put | 5,483 | 33,167 | +27,684 |
| FISV | 2026-11-20 | 50 | call | 1,256 | 17,818 | +16,562 |
| RIVN | 2029-01-19 | 5 | put | 199 | 15,181 | +14,982 |
| INTC | 2026-10-14 | 110 | call | 5,994 | 19,727 | +13,733 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| WMB | 2026-11-20 | 95 | call | 75,300 | 26,837 | -48,463 |
| WMB | 2026-11-20 | 80 | call | 77,207 | 31,894 | -45,313 |
| SMR | 2026-10-16 | 11 | put | 14,389 | 7 | -14,382 |
| NU | 2026-11-20 | 14 | call | 131,244 | 117,749 | -13,495 |
| ORCL | 2026-10-23 | 155 | call | 19,501 | 8,663 | -10,838 |
| BAC | 2026-10-30 | 50 | put | 10,264 | 2,504 | -7,760 |
| NIO | 2026-10-16 | 4 | put | 14,935 | 8,001 | -6,934 |
| SNAP | 2026-10-16 | 6 | call | 54,349 | 49,001 | -5,348 |
| GOOGL | 2026-10-16 | 420 | call | 27,405 | 22,407 | -4,998 |
| MDT | 2026-10-16 | 90 | call | 18,357 | 13,803 | -4,554 |

## Calls vs puts

| Type | Added | Removed | Net |
|---|---|---|---|
| Calls | +3,480,196 | -666,989 | +2,813,207 |
| Puts | +3,922,710 | -594,895 | +3,327,815 |

## Biggest percent changes

Percent changes only for contracts with at least 1,000 prior open interest.

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | Change % |
|---|---|---|---|---|---|---|---|
| SNAP | 2026-12-18 | 8 | call | 1,650 | 38,393 | +36,743 | +2,226.8% |
| WMB | 2026-11-20 | 85 | call | 2,052 | 39,608 | +37,556 | +1,830.2% |
| NVDA | 2026-10-14 | 242.5 | call | 1,882 | 36,023 | +34,141 | +1,814.1% |
| XLP | 2026-12-18 | 80 | put | 4,462 | 74,411 | +69,949 | +1,567.7% |
| IWM | 2026-10-14 | 285 | call | 1,284 | 20,419 | +19,135 | +1,490.3% |
| FISV | 2026-11-20 | 50 | call | 1,256 | 17,818 | +16,562 | +1,318.6% |
| SPX | 2027-04-16 | 8,300 | call | 1,777 | 16,560 | +14,783 | +831.9% |
| SPY | 2026-10-14 | 795 | call | 1,367 | 12,717 | +11,350 | +830.3% |
| QQQ | 2026-10-13 | 750 | call | 1,497 | 11,334 | +9,837 | +657.1% |
| SPY | 2026-10-13 | 736 | put | 1,342 | 9,287 | +7,945 | +592% |
| META | 2026-10-16 | 740 | put | 1,919 | 12,184 | +10,265 | +534.9% |
| SPY | 2026-10-13 | 779 | call | 1,983 | 12,511 | +10,528 | +530.9% |
| PLTR | 2026-12-18 | 160 | put | 5,483 | 33,167 | +27,684 | +504.9% |
| META | 2026-10-16 | 730 | put | 1,944 | 11,458 | +9,514 | +489.4% |
| LCID | 2026-12-18 | 3.5 | put | 2,883 | 16,102 | +13,219 | +458.5% |
| SNAP | 2026-10-23 | 7 | call | 1,847 | 10,090 | +8,243 | +446.3% |
| WMB | 2026-11-20 | 75 | call | 7,239 | 39,002 | +31,763 | +438.8% |
| SPY | 2026-10-16 | 812 | call | 2,426 | 12,406 | +9,980 | +411.4% |
| QQQ | 2026-10-13 | 745 | put | 1,219 | 6,096 | +4,877 | +400.1% |
| SPY | 2026-10-14 | 779 | call | 1,126 | 5,515 | +4,389 | +389.8% |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | Change % |
|---|---|---|---|---|---|---|---|
| SMR | 2026-10-16 | 11 | put | 14,389 | 7 | -14,382 | -100% |
| INTC | 2026-10-23 | 140 | put | 1,195 | 0 | -1,195 | -100% |
| NVDA | 2027-01-15 | 300 | put | 1,671 | 6 | -1,665 | -99.6% |
| EWY | 2026-10-16 | 200 | put | 2,747 | 51 | -2,696 | -98.1% |
| ORCL | 2026-10-16 | 195 | put | 1,174 | 25 | -1,149 | -97.9% |
| INTC | 2026-10-16 | 130 | put | 2,651 | 57 | -2,594 | -97.8% |
| ORCL | 2026-10-16 | 180 | put | 3,313 | 91 | -3,222 | -97.3% |
| BMY | 2026-10-16 | 65 | put | 1,714 | 55 | -1,659 | -96.8% |
| ORCL | 2026-10-16 | 190 | put | 2,686 | 108 | -2,578 | -96% |
| NVDA | 2026-10-16 | 250 | put | 2,912 | 170 | -2,742 | -94.2% |
| ORCL | 2027-01-15 | 250 | put | 1,357 | 123 | -1,234 | -90.9% |
| ORCL | 2026-10-16 | 170 | put | 4,616 | 506 | -4,110 | -89% |
| AVGO | 2026-10-16 | 400 | put | 3,004 | 404 | -2,600 | -86.6% |
| INTC | 2026-10-16 | 125 | put | 3,613 | 496 | -3,117 | -86.3% |
| XLP | 2026-12-18 | 78 | put | 95,244 | 15,311 | -79,933 | -83.9% |
| SOFI | 2026-10-23 | 19 | put | 1,260 | 208 | -1,052 | -83.5% |
| SMR | 2026-10-16 | 9 | put | 3,393 | 623 | -2,770 | -81.6% |
| UPST | 2026-10-16 | 30 | put | 1,599 | 326 | -1,273 | -79.6% |
| SMR | 2026-10-16 | 10 | put | 1,817 | 432 | -1,385 | -76.2% |
| BAC | 2026-10-30 | 50 | put | 10,264 | 2,504 | -7,760 | -75.6% |

## Top strikes, summed across expirations

| Symbol | Strike | Type | Change | Expirations summed |
|---|---|---|---|---|
| NVDA | 100 | put | +270,262 | 13 |
| NVDA | 150 | put | +186,024 | 21 |
| XLP | 78 | put | -77,911 | 7 |
| XLP | 80 | put | +74,331 | 8 |
| WMB | 95 | call | -48,461 | 2 |
| SNAP | 8 | call | +45,827 | 10 |
| WMB | 80 | call | -45,289 | 7 |
| SPY | 737 | put | +41,790 | 14 |
| SPY | 738 | put | +39,335 | 14 |
| WMB | 85 | call | +37,591 | 3 |
| EWZ | 40 | put | +34,173 | 12 |
| NVDA | 242.5 | call | +33,481 | 6 |
| WMB | 75 | call | +32,525 | 11 |
| PLTR | 160 | put | +28,916 | 15 |
| SPY | 780 | call | +26,930 | 31 |
| TLT | 79 | call | +24,342 | 26 |
| IWM | 285 | call | +23,428 | 25 |
| SPY | 747 | put | +23,308 | 16 |
| NVDA | 225 | put | +23,019 | 25 |
| QQQ | 730 | put | +22,814 | 23 |

## Symbols by net change

Largest net increases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| SPY | +807,260 | +268,275 | +538,985 |
| NVDA | +784,788 | +151,830 | +632,958 |
| QQQ | +619,861 | +222,307 | +397,554 |
| SPX | +493,718 | +191,040 | +302,678 |
| IWM | +209,554 | +130,549 | +79,005 |
| INTC | +178,780 | +99,280 | +79,500 |
| TSLA | +143,865 | +87,944 | +55,921 |
| TLT | +136,550 | +103,353 | +33,197 |
| META | +129,625 | +73,929 | +55,696 |
| AAPL | +126,379 | +77,823 | +48,556 |

Largest net decreases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| WMB | -20,954 | -21,114 | +160 |
| SMR | -8,485 | +10,864 | -19,349 |
| EMR | -547 | -562 | +15 |
| ZM | -479 | -432 | -47 |
| BMY | -295 | +2,425 | -2,720 |
| AXP | -245 | +707 | -952 |

## Archive

- https://squawkflow.com/oi-changes/2026-10-13.md (2026-10-13 vs 2026-10-12, 210 symbols)
- https://squawkflow.com/oi-changes/2026-10-12.md (2026-10-12 vs 2026-10-09, 210 symbols)
- https://squawkflow.com/oi-changes/2026-10-09.md (2026-10-09 vs 2026-10-08, 168 symbols)
- https://squawkflow.com/oi-changes/2026-10-08.md (2026-10-08 vs 2026-10-07, 158 symbols)
- https://squawkflow.com/oi-changes/2026-10-07.md (2026-10-07 vs 2026-10-06, 135 symbols)
- https://squawkflow.com/oi-changes/2026-10-06.md (2026-10-06 vs 2026-10-05, 136 symbols)
- https://squawkflow.com/oi-changes/2026-10-05.md (2026-10-05 vs 2026-10-02, 155 symbols)
- https://squawkflow.com/oi-changes/2026-10-02.md (2026-10-02 vs 2026-10-01, 148 symbols)
- https://squawkflow.com/oi-changes/2026-10-01.md (2026-10-01 vs 2026-09-30, 156 symbols)
- https://squawkflow.com/oi-changes/2026-09-30.md (2026-09-30 vs 2026-09-29, 148 symbols)

SPX open interest change by strike: https://squawkflow.com/oi-change.md

Canonical: https://squawkflow.com/oi-changes/2026-10-12