# Biggest options open interest changes

OI settled 2026-09-28 vs 2026-09-25.

> 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.

150 of 212 archived US symbols compared. The other 62 lacked a consecutive settlement pair in the archive for these two sessions. 28 of those compared reported an identical book in both sessions.

Across the compared symbols: 71,031 contracts changed open interest, +6,884,402 added, -1,251,392 removed, net +5,633,010 contracts.

## Largest open interest increases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| QQQ | 2027-03-19 | 670 | put | 5,397 | 195,642 | +190,245 |
| SPY | 2027-03-19 | 700 | put | 65,179 | 128,092 | +62,913 |
| SPY | 2026-10-02 | 745 | put | 7,078 | 67,934 | +60,856 |
| SPY | 2026-10-02 | 730 | put | 7,691 | 67,749 | +60,058 |
| INTC | 2026-10-16 | 130 | call | 43,683 | 96,068 | +52,385 |
| SPY | 2026-10-09 | 745 | put | 1,942 | 47,990 | +46,048 |
| SPY | 2026-10-09 | 725 | put | 1,481 | 46,452 | +44,971 |
| XLF | 2026-10-16 | 54.5 | put | 70,606 | 114,419 | +43,813 |
| QQQ | 2026-09-29 | 735 | put | 3,354 | 39,284 | +35,930 |
| TLT | 2026-11-20 | 75 | put | 18,664 | 54,180 | +35,516 |
| XLE | 2026-09-30 | 58 | put | 183 | 35,172 | +34,989 |
| TLT | 2026-11-20 | 77 | put | 55,146 | 88,497 | +33,351 |
| TLT | 2026-09-30 | 79 | call | 7,595 | 33,859 | +26,264 |
| QQQ | 2026-10-30 | 690 | put | 5,393 | 29,585 | +24,192 |
| IWM | 2026-10-16 | 266 | put | 2,305 | 26,120 | +23,815 |
| CMG | 2026-10-09 | 33 | call | 176 | 23,836 | +23,660 |
| TLT | 2026-10-02 | 79 | call | 2,320 | 24,269 | +21,949 |
| QQQ | 2026-10-30 | 640 | put | 8,228 | 29,772 | +21,544 |
| XLE | 2026-11-20 | 57 | put | 1,036 | 21,585 | +20,549 |
| XLE | 2026-11-20 | 59 | put | 5,282 | 25,807 | +20,525 |

## Largest open interest decreases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| QQQ | 2026-12-18 | 660 | put | 200,912 | 26,728 | -174,184 |
| SPY | 2026-12-18 | 660 | put | 134,878 | 16,889 | -117,989 |
| TLT | 2026-10-16 | 79 | put | 98,724 | 61,876 | -36,848 |
| IWM | 2026-10-16 | 268 | put | 64,540 | 30,116 | -34,424 |
| TLT | 2026-10-16 | 77 | put | 49,220 | 24,322 | -24,898 |
| XLF | 2026-10-16 | 56 | put | 173,433 | 150,393 | -23,040 |
| XLU | 2026-12-18 | 44 | call | 44,460 | 25,641 | -18,819 |
| AMZN | 2026-11-20 | 320 | call | 24,415 | 7,542 | -16,873 |
| AMZN | 2026-11-20 | 270 | call | 44,638 | 28,240 | -16,398 |
| SPY | 2026-10-16 | 736 | put | 55,001 | 40,466 | -14,535 |
| INTC | 2026-11-20 | 150 | call | 27,217 | 15,807 | -11,410 |
| SOFI | 2027-01-15 | 30 | put | 14,191 | 2,931 | -11,260 |
| SPY | 2026-10-02 | 744 | put | 15,725 | 4,845 | -10,880 |
| TLT | 2026-09-30 | 81 | put | 26,070 | 15,399 | -10,671 |
| XLB | 2026-12-18 | 58 | call | 11,067 | 2,067 | -9,000 |
| TLT | 2026-09-30 | 79 | put | 29,413 | 20,842 | -8,571 |
| XOM | 2026-10-16 | 170 | call | 23,985 | 16,761 | -7,224 |
| QQQ | 2026-09-29 | 736 | put | 24,655 | 17,831 | -6,824 |
| QQQ | 2026-10-16 | 730 | put | 26,266 | 19,782 | -6,484 |
| META | 2026-11-20 | 900 | call | 20,980 | 14,523 | -6,457 |

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

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| QQQ | 2027-03-19 | 670 | put | 5,397 | 195,642 | +190,245 |
| SPY | 2027-03-19 | 700 | put | 65,179 | 128,092 | +62,913 |
| SPY | 2026-10-02 | 745 | put | 7,078 | 67,934 | +60,856 |
| SPY | 2026-10-02 | 730 | put | 7,691 | 67,749 | +60,058 |
| SPY | 2026-10-09 | 745 | put | 1,942 | 47,990 | +46,048 |
| SPY | 2026-10-09 | 725 | put | 1,481 | 46,452 | +44,971 |
| QQQ | 2026-09-29 | 735 | put | 3,354 | 39,284 | +35,930 |
| QQQ | 2026-10-30 | 690 | put | 5,393 | 29,585 | +24,192 |
| IWM | 2026-10-16 | 266 | put | 2,305 | 26,120 | +23,815 |
| QQQ | 2026-10-30 | 640 | put | 8,228 | 29,772 | +21,544 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| QQQ | 2026-12-18 | 660 | put | 200,912 | 26,728 | -174,184 |
| SPY | 2026-12-18 | 660 | put | 134,878 | 16,889 | -117,989 |
| IWM | 2026-10-16 | 268 | put | 64,540 | 30,116 | -34,424 |
| SPY | 2026-10-16 | 736 | put | 55,001 | 40,466 | -14,535 |
| SPY | 2026-10-02 | 744 | put | 15,725 | 4,845 | -10,880 |
| QQQ | 2026-09-29 | 736 | put | 24,655 | 17,831 | -6,824 |
| QQQ | 2026-10-16 | 730 | put | 26,266 | 19,782 | -6,484 |
| IWM | 2026-09-30 | 290 | put | 20,678 | 14,688 | -5,990 |
| SPY | 2026-10-09 | 793 | call | 12,122 | 6,159 | -5,963 |
| SPY | 2026-09-30 | 761 | put | 54,404 | 48,629 | -5,775 |

## Single stocks

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| INTC | 2026-10-16 | 130 | call | 43,683 | 96,068 | +52,385 |
| CMG | 2026-10-09 | 33 | call | 176 | 23,836 | +23,660 |
| AMC | 2026-10-02 | 3.5 | call | 10,484 | 29,940 | +19,456 |
| AMC | 2026-10-02 | 3 | put | 1,612 | 19,311 | +17,699 |
| AMZN | 2026-11-20 | 305 | call | 13,964 | 31,650 | +17,686 |
| AMZN | 2026-11-20 | 260 | call | 15,010 | 32,473 | +17,463 |
| XOM | 2026-11-20 | 170 | call | 4,580 | 18,099 | +13,519 |
| SHOP | 2026-11-20 | 105 | put | 790 | 12,159 | +11,369 |
| CVX | 2026-11-20 | 220 | call | 3,104 | 13,845 | +10,741 |
| INTC | 2027-04-16 | 105 | put | 165 | 10,706 | +10,541 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| AMZN | 2026-11-20 | 320 | call | 24,415 | 7,542 | -16,873 |
| AMZN | 2026-11-20 | 270 | call | 44,638 | 28,240 | -16,398 |
| INTC | 2026-11-20 | 150 | call | 27,217 | 15,807 | -11,410 |
| SOFI | 2027-01-15 | 30 | put | 14,191 | 2,931 | -11,260 |
| XOM | 2026-10-16 | 170 | call | 23,985 | 16,761 | -7,224 |
| META | 2026-11-20 | 900 | call | 20,980 | 14,523 | -6,457 |
| INTC | 2026-10-09 | 140 | call | 13,059 | 7,840 | -5,219 |
| BAC | 2026-10-16 | 62.5 | put | 12,662 | 7,521 | -5,141 |
| MSFT | 2026-10-09 | 530 | call | 11,526 | 7,569 | -3,957 |
| META | 2026-10-16 | 830 | call | 7,066 | 3,211 | -3,855 |

## Calls vs puts

| Type | Added | Removed | Net |
|---|---|---|---|
| Calls | +3,159,252 | -432,539 | +2,726,713 |
| Puts | +3,725,150 | -818,853 | +2,906,297 |

## 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 % |
|---|---|---|---|---|---|---|---|
| QQQ | 2027-03-19 | 670 | put | 5,397 | 195,642 | +190,245 | +3,525% |
| SPY | 2026-10-09 | 725 | put | 1,481 | 46,452 | +44,971 | +3,036.5% |
| SPY | 2026-10-09 | 745 | put | 1,942 | 47,990 | +46,048 | +2,371.2% |
| XLE | 2026-11-20 | 57 | put | 1,036 | 21,585 | +20,549 | +1,983.5% |
| IWM | 2026-10-02 | 300 | call | 1,542 | 21,178 | +19,636 | +1,273.4% |
| SPY | 2026-09-29 | 768 | call | 1,104 | 14,784 | +13,680 | +1,239.1% |
| SPY | 2026-10-09 | 742 | put | 1,296 | 16,138 | +14,842 | +1,145.2% |
| SPX | 2026-09-29 | 7,550 | put | 1,438 | 17,339 | +15,901 | +1,105.8% |
| AMC | 2026-10-02 | 3 | put | 1,612 | 19,311 | +17,699 | +1,098% |
| IWM | 2027-03-19 | 205 | put | 1,334 | 15,973 | +14,639 | +1,097.4% |
| QQQ | 2026-09-29 | 735 | put | 3,354 | 39,284 | +35,930 | +1,071.3% |
| IWM | 2026-10-16 | 266 | put | 2,305 | 26,120 | +23,815 | +1,033.2% |
| TLT | 2026-10-02 | 79 | call | 2,320 | 24,269 | +21,949 | +946.1% |
| SPY | 2026-10-02 | 745 | put | 7,078 | 67,934 | +60,856 | +859.8% |
| SPY | 2026-09-29 | 769 | call | 1,074 | 9,903 | +8,829 | +822.1% |
| QQQ | 2026-09-29 | 732 | put | 1,105 | 10,155 | +9,050 | +819% |
| SPY | 2026-10-02 | 730 | put | 7,691 | 67,749 | +60,058 | +780.9% |
| QQQ | 2026-10-02 | 650 | put | 2,762 | 21,289 | +18,527 | +670.8% |
| TSLA | 2026-10-05 | 390 | call | 1,401 | 10,347 | +8,946 | +638.5% |
| XLF | 2026-11-20 | 52 | put | 3,168 | 23,211 | +20,043 | +632.7% |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | Change % |
|---|---|---|---|---|---|---|---|
| SOFI | 2026-12-18 | 30 | put | 2,848 | 12 | -2,836 | -99.6% |
| BA | 2026-10-23 | 225 | put | 1,338 | 53 | -1,285 | -96% |
| TLT | 2026-09-30 | 82 | put | 1,277 | 111 | -1,166 | -91.3% |
| SPY | 2026-12-18 | 660 | put | 134,878 | 16,889 | -117,989 | -87.5% |
| QQQ | 2026-12-18 | 660 | put | 200,912 | 26,728 | -174,184 | -86.7% |
| XLB | 2026-12-18 | 58 | call | 11,067 | 2,067 | -9,000 | -81.3% |
| SOFI | 2027-01-15 | 30 | put | 14,191 | 2,931 | -11,260 | -79.3% |
| XLB | 2026-12-18 | 50 | put | 5,233 | 1,236 | -3,997 | -76.4% |
| SPY | 2026-10-02 | 744 | put | 15,725 | 4,845 | -10,880 | -69.2% |
| AMZN | 2026-11-20 | 320 | call | 24,415 | 7,542 | -16,873 | -69.1% |
| META | 2026-10-16 | 695 | call | 2,760 | 901 | -1,859 | -67.4% |
| META | 2026-10-16 | 805 | call | 3,334 | 1,225 | -2,109 | -63.3% |
| META | 2026-10-16 | 810 | call | 3,684 | 1,481 | -2,203 | -59.8% |
| DASH | 2026-11-20 | 250 | call | 5,430 | 2,197 | -3,233 | -59.5% |
| META | 2026-10-16 | 780 | call | 6,516 | 2,687 | -3,829 | -58.8% |
| MCD | 2026-10-16 | 255 | put | 1,363 | 597 | -766 | -56.2% |
| META | 2026-10-16 | 815 | call | 5,703 | 2,568 | -3,135 | -55% |
| META | 2026-10-16 | 830 | call | 7,066 | 3,211 | -3,855 | -54.6% |
| IWM | 2026-10-16 | 268 | put | 64,540 | 30,116 | -34,424 | -53.3% |
| TLT | 2026-10-16 | 77 | put | 49,220 | 24,322 | -24,898 | -50.6% |

## Top strikes, summed across expirations

| Symbol | Strike | Type | Change | Expirations summed |
|---|---|---|---|---|
| QQQ | 670 | put | +191,240 | 25 |
| QQQ | 660 | put | -160,882 | 19 |
| SPY | 660 | put | -116,457 | 18 |
| SPY | 745 | put | +111,325 | 23 |
| TLT | 80 | call | +79,130 | 28 |
| SPY | 700 | put | +76,706 | 31 |
| SPY | 730 | put | +72,005 | 29 |
| INTC | 130 | call | +64,967 | 23 |
| TLT | 79 | call | +62,247 | 28 |
| TLT | 75 | put | +50,541 | 28 |
| SPY | 725 | put | +49,001 | 24 |
| XLF | 54 | put | +48,197 | 20 |
| XLF | 54.5 | put | +45,057 | 12 |
| TLT | 79 | put | -43,777 | 23 |
| QQQ | 735 | put | +40,085 | 25 |
| XLU | 40 | call | +40,023 | 16 |
| IWM | 266 | put | +39,753 | 12 |
| XLE | 58 | put | +35,161 | 9 |
| SPX | 7,000 | put | +34,382 | 47 |
| QQQ | 720 | put | +34,240 | 25 |

## Symbols by net change

Largest net increases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| SPY | +765,321 | +257,349 | +507,972 |
| QQQ | +703,722 | +220,666 | +483,056 |
| SPX | +691,673 | +294,859 | +396,814 |
| TLT | +441,084 | +349,767 | +91,317 |
| IWM | +324,949 | +139,830 | +185,119 |
| TSLA | +265,208 | +179,030 | +86,178 |
| INTC | +220,342 | +129,385 | +90,957 |
| XLF | +188,641 | +42,947 | +145,694 |
| AMZN | +114,902 | +71,567 | +43,335 |
| XLE | +111,667 | +8,224 | +103,443 |

Largest net decreases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| XLB | -12,256 | -9,123 | -3,133 |
| ZTS | -42 | -58 | +16 |
| CFG | -28 | +15 | -43 |

## 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/2026-09-28