# Biggest options open interest changes

OI settled 2026-10-08 vs 2026-10-07.

> 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.

158 of 212 archived US symbols compared. The other 54 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: 81,405 contracts changed open interest, +6,704,404 added, -1,718,665 removed, net +4,985,739 contracts.

## Largest open interest increases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| XLF | 2026-11-20 | 54 | put | 41,703 | 178,053 | +136,350 |
| NVDA | 2027-03-19 | 185 | put | 12,007 | 87,010 | +75,003 |
| SPX | 2027-03-19 | 4,500 | put | 3,018 | 56,122 | +53,104 |
| SPX | 2027-03-19 | 4,400 | put | 1,221 | 50,511 | +49,290 |
| TLT | 2026-11-20 | 75 | put | 57,272 | 99,402 | +42,130 |
| MDT | 2026-10-16 | 130 | call | 11,571 | 46,576 | +35,005 |
| BAC | 2026-11-20 | 50 | put | 15,882 | 49,587 | +33,705 |
| TLT | 2026-11-20 | 73 | put | 13,422 | 45,815 | +32,393 |
| EWZ | 2026-12-18 | 55 | call | 2,138 | 32,103 | +29,965 |
| XLF | 2026-10-16 | 56 | call | 35,843 | 63,108 | +27,265 |
| MDT | 2026-10-16 | 130 | put | 10,000 | 36,500 | +26,500 |
| XLE | 2026-11-20 | 70 | call | 22,896 | 46,647 | +23,751 |
| EWZ | 2027-01-15 | 49 | call | 334 | 19,284 | +18,950 |
| INTC | 2026-10-09 | 117 | call | 3,531 | 22,080 | +18,549 |
| EWZ | 2027-01-15 | 51 | call | 2,072 | 19,760 | +17,688 |
| XLF | 2026-10-16 | 55 | call | 60,311 | 77,602 | +17,291 |
| TLT | 2026-11-20 | 77 | put | 85,144 | 102,034 | +16,890 |
| QQQ | 2026-10-16 | 717 | put | 4,166 | 21,007 | +16,841 |
| QQQ | 2026-10-09 | 575 | put | 1,530 | 18,035 | +16,505 |
| QQQ | 2026-10-09 | 600 | put | 2,437 | 18,857 | +16,420 |

## Largest open interest decreases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-10-14 | 790 | call | 79,843 | 28,501 | -51,342 |
| XLF | 2026-10-16 | 54.5 | put | 95,074 | 62,186 | -32,888 |
| EWZ | 2026-11-20 | 41 | call | 225,884 | 196,899 | -28,985 |
| WFC | 2026-12-18 | 100 | call | 63,074 | 39,879 | -23,195 |
| CMG | 2026-10-09 | 33 | call | 47,498 | 27,180 | -20,318 |
| EWZ | 2026-11-20 | 43 | call | 847,662 | 828,663 | -18,999 |
| XLF | 2026-10-16 | 54 | put | 66,904 | 48,123 | -18,781 |
| IWM | 2026-10-16 | 275 | put | 112,272 | 95,602 | -16,670 |
| QQQ | 2026-10-16 | 760 | call | 83,022 | 66,924 | -16,098 |
| XLF | 2026-12-18 | 50 | put | 111,264 | 95,748 | -15,516 |
| NVDA | 2026-10-09 | 245 | call | 59,653 | 45,562 | -14,091 |
| IWM | 2026-10-16 | 290 | put | 23,399 | 11,491 | -11,908 |
| NVDA | 2026-10-09 | 240 | put | 13,491 | 1,952 | -11,539 |
| IWM | 2026-10-16 | 267 | put | 52,953 | 42,202 | -10,751 |
| EWZ | 2026-10-16 | 42 | call | 126,365 | 115,864 | -10,501 |
| XLF | 2026-11-20 | 56 | put | 65,401 | 55,513 | -9,888 |
| QQQ | 2026-10-09 | 754 | put | 21,633 | 12,242 | -9,391 |
| TLT | 2026-10-16 | 79 | call | 41,912 | 32,876 | -9,036 |
| NVDA | 2026-10-09 | 240 | call | 76,662 | 68,486 | -8,176 |
| XLE | 2027-01-15 | 45 | call | 30,061 | 22,012 | -8,049 |

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

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| QQQ | 2026-10-16 | 717 | put | 4,166 | 21,007 | +16,841 |
| QQQ | 2026-10-09 | 575 | put | 1,530 | 18,035 | +16,505 |
| QQQ | 2026-10-09 | 600 | put | 2,437 | 18,857 | +16,420 |
| SPY | 2026-10-16 | 748 | put | 6,066 | 22,265 | +16,199 |
| SPY | 2026-10-09 | 733 | put | 1,456 | 17,507 | +16,051 |
| QQQ | 2026-10-16 | 734 | put | 7,122 | 23,159 | +16,037 |
| SPY | 2026-11-20 | 736 | put | 15,424 | 31,013 | +15,589 |
| SPY | 2026-10-16 | 795 | call | 24,348 | 38,398 | +14,050 |
| QQQ | 2027-01-15 | 680 | put | 22,756 | 36,649 | +13,893 |
| QQQ | 2026-10-09 | 735 | put | 7,912 | 20,613 | +12,701 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-10-14 | 790 | call | 79,843 | 28,501 | -51,342 |
| IWM | 2026-10-16 | 275 | put | 112,272 | 95,602 | -16,670 |
| QQQ | 2026-10-16 | 760 | call | 83,022 | 66,924 | -16,098 |
| IWM | 2026-10-16 | 290 | put | 23,399 | 11,491 | -11,908 |
| IWM | 2026-10-16 | 267 | put | 52,953 | 42,202 | -10,751 |
| QQQ | 2026-10-09 | 754 | put | 21,633 | 12,242 | -9,391 |
| IWM | 2026-10-16 | 270 | put | 85,770 | 77,910 | -7,860 |
| SPY | 2026-10-16 | 740 | put | 57,818 | 50,655 | -7,163 |
| IWM | 2026-10-16 | 276 | put | 30,753 | 23,855 | -6,898 |
| QQQ | 2027-06-17 | 880 | call | 31,118 | 24,316 | -6,802 |

## Single stocks

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| NVDA | 2027-03-19 | 185 | put | 12,007 | 87,010 | +75,003 |
| MDT | 2026-10-16 | 130 | call | 11,571 | 46,576 | +35,005 |
| BAC | 2026-11-20 | 50 | put | 15,882 | 49,587 | +33,705 |
| MDT | 2026-10-16 | 130 | put | 10,000 | 36,500 | +26,500 |
| INTC | 2026-10-09 | 117 | call | 3,531 | 22,080 | +18,549 |
| NVDA | 2026-10-16 | 242.5 | call | 7,390 | 22,250 | +14,860 |
| NVDA | 2026-10-23 | 125 | put | 1,572 | 15,321 | +13,749 |
| ET | 2026-10-16 | 20.5 | call | 4,058 | 17,327 | +13,269 |
| AAPL | 2026-10-09 | 342.5 | call | 8,414 | 21,197 | +12,783 |
| BAC | 2026-10-16 | 57 | call | 4,992 | 17,753 | +12,761 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| WFC | 2026-12-18 | 100 | call | 63,074 | 39,879 | -23,195 |
| CMG | 2026-10-09 | 33 | call | 47,498 | 27,180 | -20,318 |
| NVDA | 2026-10-09 | 245 | call | 59,653 | 45,562 | -14,091 |
| NVDA | 2026-10-09 | 240 | put | 13,491 | 1,952 | -11,539 |
| NVDA | 2026-10-09 | 240 | call | 76,662 | 68,486 | -8,176 |
| AMZN | 2026-11-20 | 265 | call | 30,233 | 22,517 | -7,716 |
| COIN | 2026-10-09 | 195 | call | 13,065 | 7,767 | -5,298 |
| BAC | 2026-11-20 | 55 | put | 19,575 | 14,676 | -4,899 |
| NVDA | 2026-10-16 | 260 | call | 78,052 | 73,248 | -4,804 |
| GME | 2026-10-09 | 25 | call | 21,156 | 16,777 | -4,379 |

## Calls vs puts

| Type | Added | Removed | Net |
|---|---|---|---|
| Calls | +3,214,647 | -867,230 | +2,347,417 |
| Puts | +3,489,757 | -851,435 | +2,638,322 |

## 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 % |
|---|---|---|---|---|---|---|---|
| SPX | 2027-03-19 | 4,400 | put | 1,221 | 50,511 | +49,290 | +4,036.9% |
| SPX | 2027-03-19 | 4,500 | put | 3,018 | 56,122 | +53,104 | +1,759.6% |
| EWZ | 2026-12-18 | 55 | call | 2,138 | 32,103 | +29,965 | +1,401.5% |
| SPY | 2026-10-09 | 733 | put | 1,456 | 17,507 | +16,051 | +1,102.4% |
| QQQ | 2026-10-09 | 575 | put | 1,530 | 18,035 | +16,505 | +1,078.8% |
| NVDA | 2026-10-23 | 125 | put | 1,572 | 15,321 | +13,749 | +874.6% |
| EWZ | 2027-01-15 | 51 | call | 2,072 | 19,760 | +17,688 | +853.7% |
| QQQ | 2026-10-09 | 600 | put | 2,437 | 18,857 | +16,420 | +673.8% |
| AAPL | 2026-10-09 | 337.5 | put | 1,239 | 9,315 | +8,076 | +651.8% |
| NVDA | 2027-03-19 | 185 | put | 12,007 | 87,010 | +75,003 | +624.7% |
| SPY | 2026-10-12 | 728 | put | 1,470 | 9,450 | +7,980 | +542.9% |
| TSLA | 2026-10-09 | 270 | put | 1,330 | 8,514 | +7,184 | +540.2% |
| INTC | 2026-10-09 | 117 | call | 3,531 | 22,080 | +18,549 | +525.3% |
| SPX | 2026-12-31 | 7,300 | put | 1,787 | 11,135 | +9,348 | +523.1% |
| QQQ | 2026-10-09 | 590 | put | 1,012 | 6,296 | +5,284 | +522.1% |
| SPX | 2026-10-09 | 7,615 | put | 2,152 | 13,284 | +11,132 | +517.3% |
| EWZ | 2026-12-18 | 39 | put | 1,577 | 8,827 | +7,250 | +459.7% |
| INTC | 2026-10-09 | 111 | call | 1,391 | 7,702 | +6,311 | +453.7% |
| TLT | 2026-10-23 | 82.5 | call | 2,157 | 11,934 | +9,777 | +453.3% |
| INTC | 2027-02-19 | 145 | call | 2,026 | 11,187 | +9,161 | +452.2% |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | Change % |
|---|---|---|---|---|---|---|---|
| QQQ | 2026-10-09 | 763 | put | 2,603 | 2 | -2,601 | -99.9% |
| SPY | 2026-10-09 | 784 | put | 1,645 | 1 | -1,644 | -99.9% |
| GLD | 2026-10-09 | 392 | put | 1,220 | 6 | -1,214 | -99.5% |
| SPY | 2026-10-09 | 785 | put | 1,639 | 13 | -1,626 | -99.2% |
| META | 2026-10-09 | 755 | put | 1,430 | 15 | -1,415 | -99% |
| INTC | 2026-10-09 | 123 | put | 1,729 | 20 | -1,709 | -98.8% |
| GLD | 2026-12-18 | 450 | put | 1,384 | 17 | -1,367 | -98.8% |
| AAPL | 2026-10-09 | 350 | put | 1,859 | 27 | -1,832 | -98.5% |
| IWM | 2026-10-09 | 282 | put | 3,220 | 68 | -3,152 | -97.9% |
| INTC | 2026-10-09 | 117 | put | 2,788 | 60 | -2,728 | -97.8% |
| META | 2026-10-09 | 750 | put | 2,358 | 58 | -2,300 | -97.5% |
| NVDA | 2026-10-09 | 245 | put | 1,307 | 34 | -1,273 | -97.4% |
| GLD | 2026-10-09 | 390 | put | 1,265 | 39 | -1,226 | -96.9% |
| INTC | 2026-10-09 | 120 | put | 3,334 | 108 | -3,226 | -96.8% |
| QQQ | 2026-10-09 | 761 | put | 2,384 | 79 | -2,305 | -96.7% |
| GLD | 2026-12-31 | 445 | put | 1,072 | 35 | -1,037 | -96.7% |
| EWY | 2026-10-16 | 215 | put | 1,462 | 55 | -1,407 | -96.2% |
| QQQ | 2026-10-09 | 759 | put | 1,571 | 67 | -1,504 | -95.7% |
| TXN | 2026-10-09 | 297.5 | call | 1,378 | 69 | -1,309 | -95% |
| IWM | 2026-10-09 | 283 | put | 2,439 | 133 | -2,306 | -94.5% |

## Top strikes, summed across expirations

| Symbol | Strike | Type | Change | Expirations summed |
|---|---|---|---|---|
| XLF | 54 | put | +125,317 | 19 |
| NVDA | 185 | put | +78,737 | 25 |
| SPX | 4,500 | put | +53,151 | 4 |
| SPY | 790 | call | -50,591 | 27 |
| SPX | 4,400 | put | +49,360 | 11 |
| TLT | 75 | put | +38,308 | 26 |
| TLT | 73 | put | +36,991 | 25 |
| MDT | 130 | call | +35,064 | 4 |
| BAC | 50 | put | +34,773 | 19 |
| NVDA | 235 | call | +32,656 | 26 |
| XLF | 55 | call | +31,959 | 20 |
| XLF | 54.5 | put | -31,043 | 6 |
| EWZ | 55 | call | +30,245 | 7 |
| IWM | 280 | call | +28,886 | 30 |
| EWZ | 51 | call | +28,406 | 6 |
| XLF | 56 | call | +28,177 | 20 |
| MDT | 130 | put | +26,500 | 1 |
| XLE | 70 | call | +26,296 | 17 |
| EWZ | 41 | call | -26,195 | 8 |
| NVDA | 232.5 | call | +25,583 | 7 |

## Symbols by net change

Largest net increases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| SPY | +690,440 | +262,909 | +427,531 |
| SPX | +675,740 | +222,211 | +453,529 |
| QQQ | +598,227 | +174,160 | +424,067 |
| NVDA | +370,221 | +138,659 | +231,562 |
| TLT | +313,363 | +167,865 | +145,498 |
| INTC | +240,451 | +148,113 | +92,338 |
| IWM | +219,385 | +181,566 | +37,819 |
| XLF | +189,761 | +79,635 | +110,126 |
| EWZ | +121,352 | +74,784 | +46,568 |
| AAPL | +109,645 | +58,162 | +51,483 |

Largest net decreases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| FXI | -5,703 | +1,183 | -6,886 |
| XLU | -2,356 | -7,912 | +5,556 |
| BB | -1,681 | -27 | -1,654 |
| GRAB | -1,291 | -2,340 | +1,049 |
| XLRE | -108 | -70 | -38 |
| BR | -18 | -10 | -8 |
| CFG | -7 | +24 | -31 |

## Archive

- 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)
- https://squawkflow.com/oi-changes/2026-09-29.md (2026-09-29 vs 2026-09-28, 150 symbols)
- https://squawkflow.com/oi-changes/2026-09-28.md (2026-09-28 vs 2026-09-25, 150 symbols)
- https://squawkflow.com/oi-changes/2026-09-25.md (2026-09-25 vs 2026-09-24, 135 symbols)

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

Canonical: https://squawkflow.com/oi-changes/2026-10-08