# Biggest options open interest changes

OI settled 2026-09-24 vs 2026-09-23.

> 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.

130 of 212 archived US symbols compared. The other 82 lacked a consecutive settlement pair in the archive for these two sessions.

Across the compared symbols: 97,094 contracts changed open interest, +14,531,960 added, -1,922,705 removed, net +12,609,255 contracts.

## Largest open interest increases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| XLE | 2026-10-16 | 60 | put | 38,444 | 139,852 | +101,408 |
| U | 2026-10-16 | 46 | call | 701 | 78,063 | +77,362 |
| SPX | 2026-11-06 | 6,450 | put | 67 | 62,072 | +62,005 |
| SPY | 2026-09-30 | 649 | put | 705 | 60,521 | +59,816 |
| SPX | 2026-11-06 | 6,350 | put | 56 | 59,413 | +59,357 |
| IWM | 2026-10-16 | 269 | put | 466 | 57,374 | +56,908 |
| SPY | 2026-09-30 | 648 | put | 673 | 56,034 | +55,361 |
| SPY | 2026-10-02 | 785 | call | 7,088 | 58,454 | +51,366 |
| INTC | 2026-10-16 | 160 | call | 11,128 | 60,230 | +49,102 |
| QQQ | 2026-10-16 | 760 | call | 35,550 | 81,859 | +46,309 |
| IWM | 2026-10-30 | 271 | put | 379 | 46,479 | +46,100 |
| IWM | 2026-10-30 | 278 | put | 489 | 46,419 | +45,930 |
| IWM | 2026-09-30 | 285 | call | 2,902 | 45,495 | +42,593 |
| QQQ | 2026-10-02 | 730 | put | 9,934 | 49,652 | +39,718 |
| IWM | 2026-10-16 | 267 | put | 679 | 40,050 | +39,371 |
| IWM | 2026-10-16 | 268 | put | 87 | 36,122 | +36,035 |
| XLF | 2027-03-19 | 54 | put | 7,339 | 42,949 | +35,610 |
| XLU | 2027-06-17 | 29 | put | 102,811 | 137,822 | +35,011 |
| QQQ | 2026-09-30 | 726 | call | 10,207 | 45,172 | +34,965 |
| IWM | 2026-10-09 | 277 | put | 1,505 | 36,102 | +34,597 |

## Largest open interest decreases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| IWM | 2026-10-02 | 283 | put | 70,270 | 36,599 | -33,671 |
| XLF | 2027-01-15 | 61 | call | 37,628 | 4,220 | -33,408 |
| IWM | 2026-10-16 | 272 | put | 98,042 | 68,845 | -29,197 |
| SPY | 2026-10-16 | 736 | put | 51,523 | 30,776 | -20,747 |
| QQQ | 2026-09-30 | 720 | call | 37,619 | 17,266 | -20,353 |
| TLT | 2028-01-21 | 80 | put | 113,299 | 94,330 | -18,969 |
| QQQ | 2026-09-30 | 695 | put | 36,229 | 18,740 | -17,489 |
| IWM | 2026-10-16 | 271 | put | 59,550 | 43,322 | -16,228 |
| IWM | 2026-09-25 | 280 | put | 26,608 | 10,440 | -16,168 |
| BB | 2027-01-15 | 7 | call | 34,172 | 19,064 | -15,108 |
| INTC | 2026-10-16 | 110 | call | 55,147 | 41,880 | -13,267 |
| IWM | 2026-10-16 | 300 | put | 21,676 | 9,087 | -12,589 |
| XLF | 2026-10-09 | 57 | call | 14,220 | 1,893 | -12,327 |
| TLT | 2026-09-25 | 82 | call | 34,637 | 22,462 | -12,175 |
| TLT | 2026-09-30 | 83 | put | 12,329 | 190 | -12,139 |
| TLT | 2026-09-25 | 81 | put | 40,994 | 29,067 | -11,927 |
| QQQ | 2026-09-30 | 650 | put | 36,200 | 24,416 | -11,784 |
| XLF | 2027-01-15 | 40 | put | 74,550 | 62,857 | -11,693 |
| XLE | 2026-10-16 | 63 | put | 47,499 | 36,026 | -11,473 |
| SPY | 2026-10-16 | 745 | put | 44,194 | 34,190 | -10,004 |

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

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-09-30 | 649 | put | 705 | 60,521 | +59,816 |
| IWM | 2026-10-16 | 269 | put | 466 | 57,374 | +56,908 |
| SPY | 2026-09-30 | 648 | put | 673 | 56,034 | +55,361 |
| SPY | 2026-10-02 | 785 | call | 7,088 | 58,454 | +51,366 |
| QQQ | 2026-10-16 | 760 | call | 35,550 | 81,859 | +46,309 |
| IWM | 2026-10-30 | 271 | put | 379 | 46,479 | +46,100 |
| IWM | 2026-10-30 | 278 | put | 489 | 46,419 | +45,930 |
| IWM | 2026-09-30 | 285 | call | 2,902 | 45,495 | +42,593 |
| QQQ | 2026-10-02 | 730 | put | 9,934 | 49,652 | +39,718 |
| IWM | 2026-10-16 | 267 | put | 679 | 40,050 | +39,371 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| IWM | 2026-10-02 | 283 | put | 70,270 | 36,599 | -33,671 |
| IWM | 2026-10-16 | 272 | put | 98,042 | 68,845 | -29,197 |
| SPY | 2026-10-16 | 736 | put | 51,523 | 30,776 | -20,747 |
| QQQ | 2026-09-30 | 720 | call | 37,619 | 17,266 | -20,353 |
| QQQ | 2026-09-30 | 695 | put | 36,229 | 18,740 | -17,489 |
| IWM | 2026-10-16 | 271 | put | 59,550 | 43,322 | -16,228 |
| IWM | 2026-09-25 | 280 | put | 26,608 | 10,440 | -16,168 |
| IWM | 2026-10-16 | 300 | put | 21,676 | 9,087 | -12,589 |
| QQQ | 2026-09-30 | 650 | put | 36,200 | 24,416 | -11,784 |
| SPY | 2026-10-16 | 745 | put | 44,194 | 34,190 | -10,004 |

## Single stocks

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| U | 2026-10-16 | 46 | call | 701 | 78,063 | +77,362 |
| INTC | 2026-10-16 | 160 | call | 11,128 | 60,230 | +49,102 |
| AMC | 2027-01-15 | 3 | put | 3,758 | 37,669 | +33,911 |
| U | 2026-10-16 | 47 | call | 702 | 27,765 | +27,063 |
| AMZN | 2026-10-30 | 260 | call | 732 | 27,473 | +26,741 |
| AMZN | 2026-10-30 | 295 | call | 668 | 26,147 | +25,479 |
| BAC | 2026-09-25 | 57 | put | 2,457 | 26,485 | +24,028 |
| INTC | 2028-01-21 | 80 | call | 10,291 | 33,793 | +23,502 |
| INTC | 2028-01-21 | 130 | call | 3,752 | 26,660 | +22,908 |
| BB | 2028-12-15 | 15 | call | 117 | 20,112 | +19,995 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| BB | 2027-01-15 | 7 | call | 34,172 | 19,064 | -15,108 |
| INTC | 2026-10-16 | 110 | call | 55,147 | 41,880 | -13,267 |
| BAC | 2026-09-25 | 60 | call | 15,729 | 6,974 | -8,755 |
| LCID | 2026-10-16 | 5 | put | 10,768 | 2,433 | -8,335 |
| TSLA | 2026-10-16 | 320 | put | 18,347 | 10,903 | -7,444 |
| BAC | 2026-12-18 | 70 | call | 59,943 | 52,549 | -7,394 |
| BAC | 2026-09-25 | 59 | call | 14,270 | 7,725 | -6,545 |
| BKNG | 2026-12-18 | 150 | call | 28,523 | 22,033 | -6,490 |
| TSLA | 2026-10-16 | 370 | put | 13,047 | 6,956 | -6,091 |
| INTC | 2026-11-20 | 60 | call | 12,764 | 7,025 | -5,739 |

## Calls vs puts

| Type | Added | Removed | Net |
|---|---|---|---|
| Calls | +7,194,973 | -737,084 | +6,457,889 |
| Puts | +7,336,987 | -1,185,621 | +6,151,366 |

## 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 % |
|---|---|---|---|---|---|---|---|
| IWM | 2026-10-09 | 277 | put | 1,505 | 36,102 | +34,597 | +2,298.8% |
| TLT | 2028-06-16 | 88 | call | 1,332 | 24,940 | +23,608 | +1,772.4% |
| IWM | 2026-09-30 | 296 | call | 1,203 | 21,456 | +20,253 | +1,683.5% |
| IWM | 2026-09-30 | 285 | call | 2,902 | 45,495 | +42,593 | +1,467.7% |
| SPY | 2026-09-30 | 676 | put | 1,367 | 20,137 | +18,770 | +1,373.1% |
| QQQ | 2026-09-25 | 736 | put | 1,409 | 18,995 | +17,586 | +1,248.1% |
| BAC | 2026-09-25 | 56 | put | 1,530 | 20,618 | +19,088 | +1,247.6% |
| XLU | 2029-01-19 | 35 | put | 1,501 | 19,613 | +18,112 | +1,206.7% |
| SPY | 2026-10-09 | 793 | call | 1,016 | 12,016 | +11,000 | +1,082.7% |
| BAC | 2026-09-25 | 57 | put | 2,457 | 26,485 | +24,028 | +977.9% |
| QQQ | 2026-10-02 | 745 | call | 1,639 | 16,982 | +15,343 | +936.1% |
| AAPL | 2026-10-09 | 330 | put | 1,013 | 10,419 | +9,406 | +928.5% |
| AMC | 2027-01-15 | 3 | put | 3,758 | 37,669 | +33,911 | +902.4% |
| SPY | 2027-06-17 | 140 | put | 1,063 | 9,781 | +8,718 | +820.1% |
| GRAB | 2026-11-20 | 4 | call | 2,175 | 19,415 | +17,240 | +792.6% |
| SPY | 2026-10-02 | 785 | call | 7,088 | 58,454 | +51,366 | +724.7% |
| IWM | 2026-09-25 | 285 | call | 1,069 | 8,623 | +7,554 | +706.6% |
| SPX | 2026-09-25 | 6,800 | put | 2,188 | 17,612 | +15,424 | +704.9% |
| SPY | 2026-09-25 | 757 | put | 1,400 | 11,034 | +9,634 | +688.1% |
| SPX | 2026-09-25 | 7,900 | call | 2,833 | 22,091 | +19,258 | +679.8% |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | Change % |
|---|---|---|---|---|---|---|---|
| XLF | 2026-09-25 | 58 | put | 3,353 | 0 | -3,353 | -100% |
| UBER | 2026-09-25 | 75 | put | 2,723 | 0 | -2,723 | -100% |
| XLF | 2026-09-25 | 57.5 | put | 2,442 | 1 | -2,441 | -100% |
| SPY | 2026-09-25 | 786 | put | 1,068 | 0 | -1,068 | -100% |
| IWM | 2026-12-18 | 330 | put | 4,004 | 4 | -4,000 | -99.9% |
| SOFI | 2028-06-16 | 47 | put | 3,297 | 4 | -3,293 | -99.9% |
| CRM | 2026-09-25 | 260 | put | 2,647 | 2 | -2,645 | -99.9% |
| SOFI | 2026-09-25 | 19 | put | 2,018 | 2 | -2,016 | -99.9% |
| XLF | 2026-09-25 | 56.5 | put | 1,340 | 2 | -1,338 | -99.9% |
| TTWO | 2026-09-25 | 215 | put | 1,304 | 1 | -1,303 | -99.9% |
| AAPL | 2026-09-25 | 350 | put | 1,199 | 2 | -1,197 | -99.8% |
| IWM | 2026-09-25 | 290 | put | 2,860 | 10 | -2,850 | -99.7% |
| SOFI | 2027-06-17 | 37 | put | 1,383 | 5 | -1,378 | -99.6% |
| SOFI | 2026-09-25 | 18.5 | put | 1,370 | 11 | -1,359 | -99.2% |
| TLT | 2026-09-28 | 82 | put | 1,550 | 17 | -1,533 | -98.9% |
| AAPL | 2026-09-25 | 347.5 | put | 2,473 | 34 | -2,439 | -98.6% |
| TLT | 2026-09-30 | 83 | put | 12,329 | 190 | -12,139 | -98.5% |
| AMZN | 2026-10-16 | 290 | put | 1,796 | 28 | -1,768 | -98.4% |
| CMG | 2026-12-18 | 45 | put | 1,211 | 24 | -1,187 | -98% |
| IWM | 2026-09-25 | 289 | put | 3,488 | 75 | -3,413 | -97.8% |

## Top strikes, summed across expirations

| Symbol | Strike | Type | Change | Expirations summed |
|---|---|---|---|---|
| QQQ | 730 | put | +115,351 | 27 |
| XLE | 60 | put | +107,417 | 18 |
| TLT | 80 | call | +83,250 | 30 |
| U | 46 | call | +80,627 | 9 |
| SPX | 7,000 | put | +77,060 | 55 |
| SPY | 785 | call | +75,524 | 31 |
| SPX | 8,000 | call | +75,187 | 53 |
| TLT | 81 | call | +72,475 | 28 |
| IWM | 285 | call | +71,406 | 30 |
| QQQ | 760 | call | +69,772 | 27 |
| SPX | 6,450 | put | +62,731 | 21 |
| IWM | 300 | call | +61,099 | 30 |
| QQQ | 720 | put | +60,673 | 30 |
| TLT | 82 | call | +60,583 | 28 |
| SPX | 7,000 | call | +60,523 | 26 |
| SPY | 649 | put | +59,828 | 3 |
| SPX | 6,350 | put | +59,778 | 22 |
| IWM | 269 | put | +58,676 | 16 |
| IWM | 278 | put | +57,939 | 18 |
| IWM | 277 | put | +57,121 | 18 |

## Symbols by net change

Largest net increases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| SPY | +1,723,588 | +706,335 | +1,017,253 |
| SPX | +1,692,824 | +674,736 | +1,018,088 |
| QQQ | +1,396,733 | +548,713 | +848,020 |
| IWM | +1,086,406 | +567,963 | +518,443 |
| TLT | +746,447 | +515,310 | +231,137 |
| INTC | +483,603 | +297,085 | +186,518 |
| AMZN | +389,214 | +254,174 | +135,040 |
| TSLA | +380,972 | +221,260 | +159,712 |
| AMD | +278,936 | +116,978 | +161,958 |
| AAPL | +270,071 | +169,530 | +100,541 |

Largest net decreases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| WU | -2,052 | -1,985 | -67 |

## 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/2026-09-24