# Biggest options open interest changes

OI settled 2026-10-06 vs 2026-10-05.

> 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.

136 of 212 archived US symbols compared. The other 76 lacked a consecutive settlement pair in the archive for these two sessions. 3 of those compared reported an identical book in both sessions.

Across the compared symbols: 73,386 contracts changed open interest, +6,283,952 added, -1,167,535 removed, net +5,116,417 contracts.

## Largest open interest increases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| WMT | 2026-11-20 | 115 | call | 14,561 | 122,469 | +107,908 |
| WMT | 2026-11-20 | 125 | call | 6,500 | 113,513 | +107,013 |
| SPY | 2027-03-19 | 655 | put | 2,455 | 103,995 | +101,540 |
| SPY | 2027-03-19 | 500 | put | 8,828 | 106,444 | +97,616 |
| SPY | 2026-10-30 | 740 | put | 7,830 | 81,801 | +73,971 |
| SPY | 2026-10-14 | 790 | call | 801 | 71,215 | +70,414 |
| SPX | 2026-11-20 | 6,400 | put | 9,728 | 70,823 | +61,095 |
| SPX | 2026-11-20 | 6,500 | put | 13,815 | 74,654 | +60,839 |
| SPY | 2026-12-18 | 810 | call | 23,914 | 79,000 | +55,086 |
| CMG | 2026-11-13 | 25 | put | 12 | 50,072 | +50,060 |
| QQQ | 2026-10-30 | 700 | put | 38,615 | 88,124 | +49,509 |
| XLU | 2026-12-18 | 41 | call | 15,725 | 52,172 | +36,447 |
| SPY | 2026-11-20 | 800 | call | 18,906 | 46,221 | +27,315 |
| INTC | 2026-10-09 | 115 | call | 5,650 | 32,039 | +26,389 |
| QQQ | 2026-10-09 | 754 | put | 3,376 | 23,095 | +19,719 |
| QQQ | 2026-10-08 | 755 | put | 963 | 19,309 | +18,346 |
| IWM | 2026-11-20 | 287 | call | 1,959 | 19,967 | +18,008 |
| IWM | 2026-11-20 | 268 | put | 15,724 | 33,329 | +17,605 |
| XLU | 2026-11-20 | 41 | call | 42,573 | 57,164 | +14,591 |
| XLU | 2026-12-18 | 45 | call | 5,862 | 20,371 | +14,509 |

## Largest open interest decreases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-10-30 | 725 | put | 83,990 | 32,282 | -51,708 |
| TLT | 2026-10-16 | 81 | put | 52,907 | 17,921 | -34,986 |
| QQQ | 2026-10-30 | 685 | put | 56,579 | 30,255 | -26,324 |
| SPY | 2026-12-18 | 800 | call | 75,688 | 49,413 | -26,275 |
| SPX | 2026-12-31 | 8,140 | call | 48,309 | 23,309 | -25,000 |
| SPX | 2026-12-31 | 8,150 | call | 73,203 | 48,216 | -24,987 |
| XLU | 2026-10-16 | 41 | call | 63,286 | 44,942 | -18,344 |
| XLU | 2026-10-16 | 41.5 | call | 51,567 | 33,825 | -17,742 |
| XLF | 2026-10-16 | 55 | put | 47,833 | 32,061 | -15,772 |
| TLT | 2026-10-16 | 82 | put | 17,138 | 1,414 | -15,724 |
| SPX | 2026-12-31 | 8,190 | call | 51,755 | 36,755 | -15,000 |
| SPX | 2026-12-31 | 8,180 | call | 63,287 | 48,287 | -15,000 |
| AVGO | 2026-10-16 | 440 | call | 33,924 | 19,227 | -14,697 |
| SPY | 2026-10-16 | 745 | put | 60,238 | 45,792 | -14,446 |
| QQQ | 2026-10-16 | 775 | call | 46,467 | 34,105 | -12,362 |
| SPY | 2026-11-20 | 733 | put | 25,787 | 15,018 | -10,769 |
| INTC | 2026-10-16 | 160 | call | 69,640 | 59,887 | -9,753 |
| IWM | 2026-11-20 | 269 | put | 31,359 | 21,657 | -9,702 |
| LCID | 2026-10-09 | 4 | put | 10,316 | 4,483 | -5,833 |
| SPY | 2026-11-20 | 765 | put | 24,953 | 19,610 | -5,343 |

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

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2027-03-19 | 655 | put | 2,455 | 103,995 | +101,540 |
| SPY | 2027-03-19 | 500 | put | 8,828 | 106,444 | +97,616 |
| SPY | 2026-10-30 | 740 | put | 7,830 | 81,801 | +73,971 |
| SPY | 2026-10-14 | 790 | call | 801 | 71,215 | +70,414 |
| SPY | 2026-12-18 | 810 | call | 23,914 | 79,000 | +55,086 |
| QQQ | 2026-10-30 | 700 | put | 38,615 | 88,124 | +49,509 |
| SPY | 2026-11-20 | 800 | call | 18,906 | 46,221 | +27,315 |
| QQQ | 2026-10-09 | 754 | put | 3,376 | 23,095 | +19,719 |
| QQQ | 2026-10-08 | 755 | put | 963 | 19,309 | +18,346 |
| IWM | 2026-11-20 | 287 | call | 1,959 | 19,967 | +18,008 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-10-30 | 725 | put | 83,990 | 32,282 | -51,708 |
| QQQ | 2026-10-30 | 685 | put | 56,579 | 30,255 | -26,324 |
| SPY | 2026-12-18 | 800 | call | 75,688 | 49,413 | -26,275 |
| SPY | 2026-10-16 | 745 | put | 60,238 | 45,792 | -14,446 |
| QQQ | 2026-10-16 | 775 | call | 46,467 | 34,105 | -12,362 |
| SPY | 2026-11-20 | 733 | put | 25,787 | 15,018 | -10,769 |
| IWM | 2026-11-20 | 269 | put | 31,359 | 21,657 | -9,702 |
| SPY | 2026-11-20 | 765 | put | 24,953 | 19,610 | -5,343 |
| IWM | 2026-10-16 | 275 | put | 130,776 | 125,877 | -4,899 |
| IWM | 2026-10-16 | 271 | put | 43,344 | 38,675 | -4,669 |

## Single stocks

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| WMT | 2026-11-20 | 115 | call | 14,561 | 122,469 | +107,908 |
| WMT | 2026-11-20 | 125 | call | 6,500 | 113,513 | +107,013 |
| CMG | 2026-11-13 | 25 | put | 12 | 50,072 | +50,060 |
| INTC | 2026-10-09 | 115 | call | 5,650 | 32,039 | +26,389 |
| AVGO | 2026-10-12 | 400 | call | 71 | 12,251 | +12,180 |
| META | 2026-10-23 | 750 | call | 983 | 12,842 | +11,859 |
| TSLA | 2026-10-07 | 385 | call | 3,684 | 15,375 | +11,691 |
| INTC | 2027-01-15 | 145 | call | 4,183 | 15,380 | +11,197 |
| MSFT | 2026-10-23 | 570 | call | 1,425 | 11,502 | +10,077 |
| SLB | 2026-12-18 | 55 | call | 1,986 | 11,887 | +9,901 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| AVGO | 2026-10-16 | 440 | call | 33,924 | 19,227 | -14,697 |
| INTC | 2026-10-16 | 160 | call | 69,640 | 59,887 | -9,753 |
| LCID | 2026-10-09 | 4 | put | 10,316 | 4,483 | -5,833 |
| TEAM | 2026-10-16 | 190 | call | 7,478 | 2,741 | -4,737 |
| AAPL | 2026-11-20 | 355 | call | 13,421 | 9,679 | -3,742 |
| MU | 2026-10-16 | 1,050 | put | 6,734 | 3,438 | -3,296 |
| MU | 2026-10-09 | 650 | put | 18,607 | 15,325 | -3,282 |
| MSFT | 2026-10-09 | 540 | call | 7,425 | 4,261 | -3,164 |
| SOFI | 2026-10-16 | 20 | call | 33,470 | 30,788 | -2,682 |
| SOFI | 2026-10-09 | 18 | put | 3,195 | 545 | -2,650 |

## Calls vs puts

| Type | Added | Removed | Net |
|---|---|---|---|
| Calls | +3,064,295 | -575,840 | +2,488,455 |
| Puts | +3,219,657 | -591,695 | +2,627,962 |

## 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 % |
|---|---|---|---|---|---|---|---|
| SPY | 2027-03-19 | 655 | put | 2,455 | 103,995 | +101,540 | +4,136% |
| WMT | 2026-11-20 | 125 | call | 6,500 | 113,513 | +107,013 | +1,646.4% |
| SPY | 2027-03-19 | 500 | put | 8,828 | 106,444 | +97,616 | +1,105.8% |
| SPY | 2026-10-30 | 740 | put | 7,830 | 81,801 | +73,971 | +944.7% |
| IWM | 2026-11-20 | 287 | call | 1,959 | 19,967 | +18,008 | +919.2% |
| WMT | 2026-11-20 | 115 | call | 14,561 | 122,469 | +107,908 | +741.1% |
| MSFT | 2026-10-23 | 570 | call | 1,425 | 11,502 | +10,077 | +707.2% |
| SPY | 2026-10-07 | 788 | call | 1,166 | 9,196 | +8,030 | +688.7% |
| SPY | 2026-10-09 | 779 | put | 1,037 | 7,579 | +6,542 | +630.9% |
| SPX | 2026-11-20 | 6,400 | put | 9,728 | 70,823 | +61,095 | +628% |
| QQQ | 2026-10-09 | 754 | put | 3,376 | 23,095 | +19,719 | +584.1% |
| XLK | 2026-12-18 | 170 | put | 1,739 | 11,448 | +9,709 | +558.3% |
| MSFT | 2026-12-18 | 610 | call | 1,099 | 6,938 | +5,839 | +531.3% |
| SPX | 2026-10-09 | 7,870 | call | 1,390 | 8,685 | +7,295 | +524.8% |
| SPY | 2026-10-07 | 787 | call | 1,816 | 11,277 | +9,461 | +521% |
| SLB | 2026-12-18 | 55 | call | 1,986 | 11,887 | +9,901 | +498.5% |
| QQQ | 2026-10-07 | 752 | put | 1,320 | 7,895 | +6,575 | +498.1% |
| SPY | 2026-10-07 | 775 | put | 1,702 | 10,161 | +8,459 | +497% |
| AVGO | 2026-11-20 | 470 | call | 1,627 | 9,491 | +7,864 | +483.3% |
| SPY | 2026-10-07 | 776 | put | 1,023 | 5,889 | +4,866 | +475.7% |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | Change % |
|---|---|---|---|---|---|---|---|
| SOFI | 2026-10-09 | 18.5 | put | 1,057 | 6 | -1,051 | -99.4% |
| TLT | 2026-10-07 | 79 | put | 1,857 | 62 | -1,795 | -96.7% |
| TLT | 2026-10-16 | 82 | put | 17,138 | 1,414 | -15,724 | -91.7% |
| SOFI | 2026-10-09 | 18 | put | 3,195 | 545 | -2,650 | -82.9% |
| TLT | 2026-10-16 | 81.5 | put | 1,150 | 198 | -952 | -82.8% |
| TLT | 2026-10-30 | 82 | put | 3,993 | 696 | -3,297 | -82.6% |
| SHOP | 2026-10-09 | 148 | put | 2,528 | 542 | -1,986 | -78.6% |
| MA | 2026-10-09 | 580 | call | 1,245 | 266 | -979 | -78.6% |
| MA | 2026-10-09 | 565 | call | 1,178 | 259 | -919 | -78% |
| JPM | 2026-11-13 | 350 | call | 1,363 | 312 | -1,051 | -77.1% |
| AMD | 2028-06-16 | 1,010 | call | 1,647 | 430 | -1,217 | -73.9% |
| AMAT | 2026-11-20 | 650 | call | 2,184 | 674 | -1,510 | -69.1% |
| TLT | 2026-10-16 | 81 | put | 52,907 | 17,921 | -34,986 | -66.1% |
| XLU | 2026-10-30 | 39 | call | 2,187 | 741 | -1,446 | -66.1% |
| TEAM | 2026-10-16 | 190 | call | 7,478 | 2,741 | -4,737 | -63.3% |
| SPY | 2026-10-30 | 725 | put | 83,990 | 32,282 | -51,708 | -61.6% |
| MSFT | 2026-10-07 | 507.5 | put | 2,092 | 814 | -1,278 | -61.1% |
| BB | 2026-10-09 | 8 | call | 1,405 | 552 | -853 | -60.7% |
| SPY | 2026-10-15 | 775 | put | 1,214 | 495 | -719 | -59.2% |
| V | 2026-10-09 | 365 | call | 1,114 | 469 | -645 | -57.9% |

## Top strikes, summed across expirations

| Symbol | Strike | Type | Change | Expirations summed |
|---|---|---|---|---|
| WMT | 115 | call | +109,567 | 13 |
| WMT | 125 | call | +108,806 | 8 |
| SPY | 655 | put | +104,586 | 19 |
| SPY | 500 | put | +97,934 | 15 |
| SPY | 740 | put | +94,280 | 29 |
| SPY | 790 | call | +82,026 | 28 |
| SPX | 6,400 | put | +62,760 | 36 |
| SPX | 6,500 | put | +62,474 | 37 |
| SPY | 810 | call | +60,787 | 26 |
| QQQ | 700 | put | +53,788 | 29 |
| SPY | 725 | put | -50,604 | 24 |
| CMG | 25 | put | +50,220 | 10 |
| TLT | 79 | call | +38,335 | 25 |
| QQQ | 755 | put | +37,367 | 26 |
| TLT | 81 | put | -37,249 | 18 |
| INTC | 115 | call | +36,266 | 20 |
| IWM | 285 | call | +36,223 | 24 |
| QQQ | 750 | put | +34,637 | 30 |
| XLU | 41 | call | +32,024 | 13 |
| SPY | 780 | put | +28,933 | 32 |

## Symbols by net change

Largest net increases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| SPY | +1,064,157 | +375,254 | +688,903 |
| SPX | +768,027 | +220,748 | +547,279 |
| QQQ | +593,004 | +170,007 | +422,997 |
| IWM | +272,616 | +161,605 | +111,011 |
| WMT | +235,556 | +223,968 | +11,588 |
| INTC | +204,453 | +140,031 | +64,422 |
| TSLA | +136,361 | +77,806 | +58,555 |
| TLT | +122,528 | +134,065 | -11,537 |
| AAPL | +117,689 | +56,319 | +61,370 |
| MU | +108,958 | +69,023 | +39,935 |

Largest net decreases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| BDX | -47 | -63 | +16 |

## 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/2026-10-06