# Biggest options open interest changes

OI settled 2026-09-11 vs 2026-09-10.

> 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.

112 of 212 archived US symbols compared. The other 100 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: 58,719 contracts changed open interest, +5,194,752 added, -975,289 removed, net +4,219,463 contracts.

## Largest open interest increases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| IWM | 2026-10-16 | 275 | put | 41,110 | 77,206 | +36,096 |
| TLT | 2026-09-18 | 81 | call | 12,833 | 45,184 | +32,351 |
| SPY | 2026-09-14 | 719 | put | 52 | 30,540 | +30,488 |
| TLT | 2026-09-14 | 80.5 | put | 0 | 25,122 | +25,122 |
| SPY | 2026-09-25 | 740 | put | 3,316 | 25,536 | +22,220 |
| TSLA | 2026-09-18 | 145 | put | 2,547 | 24,672 | +22,125 |
| SPY | 2026-09-15 | 760 | put | 21,967 | 43,115 | +21,148 |
| QQQ | 2026-10-02 | 690 | put | 796 | 21,860 | +21,064 |
| SPY | 2026-09-25 | 785 | call | 3,952 | 24,898 | +20,946 |
| SPY | 2026-09-18 | 743 | put | 28,452 | 49,229 | +20,777 |
| SPY | 2026-09-25 | 760 | put | 2,357 | 22,711 | +20,354 |
| SPY | 2026-09-18 | 760 | put | 90,360 | 109,097 | +18,737 |
| SPY | 2026-09-25 | 530 | put | 49 | 18,065 | +18,016 |
| TSLA | 2026-09-18 | 220 | put | 3,723 | 21,074 | +17,351 |
| SPX | 2026-09-14 | 7,850 | call | 819 | 18,075 | +17,256 |
| SPY | 2026-09-14 | 724 | put | 1 | 16,919 | +16,918 |
| TLT | 2026-10-16 | 79 | put | 95,778 | 112,591 | +16,813 |
| QQQ | 2026-09-15 | 710 | put | 1,373 | 17,534 | +16,161 |
| IWM | 2026-10-16 | 277 | put | 15,050 | 31,146 | +16,096 |
| SPY | 2026-09-14 | 722 | put | 2,331 | 16,959 | +14,628 |

## Largest open interest decreases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| AAPL | 2026-10-16 | 360 | call | 121,770 | 48,344 | -73,426 |
| GLD | 2026-09-18 | 430 | call | 195,241 | 137,694 | -57,547 |
| SPY | 2026-09-18 | 750 | put | 186,670 | 135,360 | -51,310 |
| SPY | 2026-09-18 | 730 | put | 115,705 | 82,600 | -33,105 |
| TLT | 2026-09-30 | 83 | call | 51,196 | 25,146 | -26,050 |
| TLT | 2026-09-30 | 84 | call | 79,905 | 54,958 | -24,947 |
| SPY | 2026-09-18 | 775 | call | 47,090 | 36,646 | -10,444 |
| UPS | 2026-11-20 | 115 | call | 12,254 | 4,073 | -8,181 |
| IWM | 2026-10-16 | 274 | put | 37,922 | 30,882 | -7,040 |
| INTC | 2026-09-18 | 95 | call | 38,039 | 31,500 | -6,539 |
| INTC | 2026-10-16 | 120 | call | 17,290 | 11,031 | -6,259 |
| INTC | 2026-09-18 | 100 | call | 40,812 | 34,569 | -6,243 |
| IWM | 2026-09-18 | 290 | put | 91,684 | 85,449 | -6,235 |
| QQQ | 2026-09-18 | 660 | put | 69,006 | 63,072 | -5,934 |
| TLT | 2026-09-18 | 82 | call | 103,368 | 97,581 | -5,787 |
| ADBE | 2026-10-16 | 210 | put | 23,985 | 18,450 | -5,535 |
| INTC | 2026-09-18 | 110 | call | 61,641 | 56,313 | -5,328 |
| SPY | 2026-09-18 | 736 | put | 25,245 | 20,004 | -5,241 |
| IWM | 2026-09-18 | 270 | call | 19,785 | 14,781 | -5,004 |
| QQQ | 2026-09-18 | 695 | put | 26,960 | 22,369 | -4,591 |

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

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| IWM | 2026-10-16 | 275 | put | 41,110 | 77,206 | +36,096 |
| SPY | 2026-09-14 | 719 | put | 52 | 30,540 | +30,488 |
| SPY | 2026-09-25 | 740 | put | 3,316 | 25,536 | +22,220 |
| SPY | 2026-09-15 | 760 | put | 21,967 | 43,115 | +21,148 |
| QQQ | 2026-10-02 | 690 | put | 796 | 21,860 | +21,064 |
| SPY | 2026-09-25 | 785 | call | 3,952 | 24,898 | +20,946 |
| SPY | 2026-09-18 | 743 | put | 28,452 | 49,229 | +20,777 |
| SPY | 2026-09-25 | 760 | put | 2,357 | 22,711 | +20,354 |
| SPY | 2026-09-18 | 760 | put | 90,360 | 109,097 | +18,737 |
| SPY | 2026-09-25 | 530 | put | 49 | 18,065 | +18,016 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-09-18 | 750 | put | 186,670 | 135,360 | -51,310 |
| SPY | 2026-09-18 | 730 | put | 115,705 | 82,600 | -33,105 |
| SPY | 2026-09-18 | 775 | call | 47,090 | 36,646 | -10,444 |
| IWM | 2026-10-16 | 274 | put | 37,922 | 30,882 | -7,040 |
| IWM | 2026-09-18 | 290 | put | 91,684 | 85,449 | -6,235 |
| QQQ | 2026-09-18 | 660 | put | 69,006 | 63,072 | -5,934 |
| SPY | 2026-09-18 | 736 | put | 25,245 | 20,004 | -5,241 |
| IWM | 2026-09-18 | 270 | call | 19,785 | 14,781 | -5,004 |
| QQQ | 2026-09-18 | 695 | put | 26,960 | 22,369 | -4,591 |
| QQQ | 2026-09-18 | 670 | put | 35,463 | 30,886 | -4,577 |

## Single stocks

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| TSLA | 2026-09-18 | 145 | put | 2,547 | 24,672 | +22,125 |
| TSLA | 2026-09-18 | 220 | put | 3,723 | 21,074 | +17,351 |
| LYFT | 2026-12-18 | 14 | put | 507 | 13,433 | +12,926 |
| GME | 2026-12-18 | 25 | call | 15,065 | 25,692 | +10,627 |
| AAPL | 2026-09-18 | 185 | put | 4,961 | 15,440 | +10,479 |
| AAPL | 2026-09-14 | 255 | put | 373 | 10,748 | +10,375 |
| GOOGL | 2026-09-18 | 165 | put | 946 | 11,130 | +10,184 |
| UPS | 2026-11-20 | 110 | call | 2,165 | 12,314 | +10,149 |
| TSLA | 2026-10-02 | 200 | put | 215 | 10,104 | +9,889 |
| AAPL | 2026-09-14 | 250 | put | 3 | 9,502 | +9,499 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| AAPL | 2026-10-16 | 360 | call | 121,770 | 48,344 | -73,426 |
| UPS | 2026-11-20 | 115 | call | 12,254 | 4,073 | -8,181 |
| INTC | 2026-09-18 | 95 | call | 38,039 | 31,500 | -6,539 |
| INTC | 2026-10-16 | 120 | call | 17,290 | 11,031 | -6,259 |
| INTC | 2026-09-18 | 100 | call | 40,812 | 34,569 | -6,243 |
| ADBE | 2026-10-16 | 210 | put | 23,985 | 18,450 | -5,535 |
| INTC | 2026-09-18 | 110 | call | 61,641 | 56,313 | -5,328 |
| ADBE | 2026-10-16 | 160 | put | 18,258 | 14,967 | -3,291 |
| AAPL | 2026-09-18 | 330 | call | 36,643 | 33,366 | -3,277 |
| SOFI | 2026-09-18 | 23 | call | 21,372 | 18,509 | -2,863 |

## Calls vs puts

| Type | Added | Removed | Net |
|---|---|---|---|
| Calls | +2,179,214 | -567,722 | +1,611,492 |
| Puts | +3,015,538 | -407,567 | +2,607,971 |

## 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 | 2026-09-15 | 710 | put | 1,373 | 17,534 | +16,161 | +1,177.1% |
| TSLA | 2026-09-18 | 145 | put | 2,547 | 24,672 | +22,125 | +868.7% |
| SPY | 2026-09-25 | 760 | put | 2,357 | 22,711 | +20,354 | +863.6% |
| SPY | 2026-09-25 | 790 | call | 1,202 | 11,354 | +10,152 | +844.6% |
| SPY | 2026-09-25 | 740 | put | 3,316 | 25,536 | +22,220 | +670.1% |
| SPY | 2026-09-14 | 722 | put | 2,331 | 16,959 | +14,628 | +627.5% |
| SPY | 2026-10-30 | 685 | put | 1,363 | 9,397 | +8,034 | +589.4% |
| SPY | 2026-09-25 | 785 | call | 3,952 | 24,898 | +20,946 | +530% |
| SPX | 2026-09-18 | 6,590 | put | 1,039 | 6,545 | +5,506 | +529.9% |
| UPS | 2026-11-20 | 110 | call | 2,165 | 12,314 | +10,149 | +468.8% |
| TSLA | 2026-09-18 | 220 | put | 3,723 | 21,074 | +17,351 | +466% |
| SPY | 2026-10-16 | 685 | put | 2,969 | 16,623 | +13,654 | +459.9% |
| TLT | 2026-10-09 | 81.5 | call | 1,664 | 8,253 | +6,589 | +396% |
| GME | 2026-12-18 | 21 | call | 1,178 | 5,835 | +4,657 | +395.3% |
| QQQ | 2026-10-02 | 710 | put | 1,204 | 5,917 | +4,713 | +391.4% |
| AVGO | 2026-09-18 | 365 | call | 2,093 | 9,905 | +7,812 | +373.2% |
| SPY | 2026-09-14 | 757 | put | 1,223 | 5,735 | +4,512 | +368.9% |
| META | 2026-09-25 | 660 | call | 1,146 | 5,305 | +4,159 | +362.9% |
| QQQ | 2026-09-17 | 640 | put | 1,313 | 5,840 | +4,527 | +344.8% |
| SPY | 2026-09-18 | 742 | put | 4,366 | 18,695 | +14,329 | +328.2% |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | Change % |
|---|---|---|---|---|---|---|---|
| UNH | 2026-09-18 | 280 | call | 1,225 | 30 | -1,195 | -97.6% |
| UNH | 2026-09-18 | 360 | call | 2,489 | 72 | -2,417 | -97.1% |
| UNH | 2026-09-18 | 320 | call | 1,507 | 147 | -1,360 | -90.2% |
| UNH | 2026-09-18 | 340 | call | 1,467 | 178 | -1,289 | -87.9% |
| TSLA | 2026-09-18 | 440 | put | 1,250 | 344 | -906 | -72.5% |
| UNH | 2026-09-18 | 350 | call | 1,848 | 579 | -1,269 | -68.7% |
| UPS | 2026-11-20 | 115 | call | 12,254 | 4,073 | -8,181 | -66.8% |
| QQQ | 2028-01-21 | 375 | put | 1,497 | 504 | -993 | -66.3% |
| QQQ | 2026-11-20 | 470 | put | 1,564 | 611 | -953 | -60.9% |
| AAPL | 2026-10-16 | 360 | call | 121,770 | 48,344 | -73,426 | -60.3% |
| TLT | 2028-12-15 | 120 | call | 1,693 | 775 | -918 | -54.2% |
| AMD | 2027-02-19 | 320 | put | 1,353 | 622 | -731 | -54% |
| SPY | 2026-10-09 | 814 | call | 2,754 | 1,308 | -1,446 | -52.5% |
| TLT | 2026-09-30 | 83 | call | 51,196 | 25,146 | -26,050 | -50.9% |
| QQQ | 2026-09-18 | 745 | put | 1,968 | 966 | -1,002 | -50.9% |
| META | 2027-12-17 | 1,150 | call | 1,056 | 527 | -529 | -50.1% |
| SPY | 2026-11-30 | 820 | call | 2,742 | 1,377 | -1,365 | -49.8% |
| UNH | 2026-09-18 | 300 | call | 1,474 | 763 | -711 | -48.2% |
| TLT | 2027-02-19 | 85 | put | 5,696 | 2,986 | -2,710 | -47.6% |
| AXP | 2028-01-21 | 310 | call | 1,610 | 860 | -750 | -46.6% |

## Top strikes, summed across expirations

| Symbol | Strike | Type | Change | Expirations summed |
|---|---|---|---|---|
| SPY | 760 | put | +85,121 | 32 |
| AAPL | 360 | call | -68,704 | 22 |
| GLD | 430 | call | -55,020 | 22 |
| IWM | 275 | put | +41,696 | 25 |
| TLT | 81 | call | +39,124 | 26 |
| QQQ | 710 | put | +33,801 | 27 |
| QQQ | 690 | put | +33,107 | 27 |
| SPY | 730 | put | -32,793 | 28 |
| SPY | 750 | put | -32,430 | 31 |
| SPY | 719 | put | +30,385 | 10 |
| TLT | 80.5 | put | +28,358 | 9 |
| SPY | 740 | put | +27,830 | 29 |
| SPX | 7,000 | put | +26,358 | 43 |
| SPX | 6,300 | put | +25,846 | 28 |
| SPY | 764 | put | +25,494 | 19 |
| SPY | 743 | put | +23,683 | 18 |
| SPY | 785 | call | +23,512 | 25 |
| SPX | 6,800 | put | +23,149 | 30 |
| SPY | 685 | put | +23,108 | 19 |
| TLT | 81.5 | call | +22,972 | 9 |

## Symbols by net change

Largest net increases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| SPX | +834,861 | +272,893 | +561,968 |
| SPY | +818,092 | +213,909 | +604,183 |
| QQQ | +554,385 | +154,454 | +399,931 |
| IWM | +258,417 | +82,597 | +175,820 |
| TSLA | +222,727 | +99,332 | +123,395 |
| TLT | +182,217 | +75,634 | +106,583 |
| AAPL | +156,843 | +3,823 | +153,020 |
| AMZN | +99,111 | +57,396 | +41,715 |
| AMD | +76,113 | +40,136 | +35,977 |
| GOOGL | +75,816 | +45,724 | +30,092 |

Largest net decreases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| GPN | -1,058 | -1,187 | +129 |
| ADP | -783 | -982 | +199 |
| GD | -526 | +51 | -577 |
| TFC | -166 | -138 | -28 |
| VEEV | -3 | -15 | +12 |

## 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/2026-09-11