# Biggest options open interest changes

OI settled 2026-10-05 vs 2026-10-02.

> 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.

155 of 212 archived US symbols compared. The other 57 lacked a consecutive settlement pair in the archive for these two sessions. 1 of those compared reported an identical book in both sessions.

Across the compared symbols: 78,539 contracts changed open interest, +6,406,373 added, -1,065,612 removed, net +5,340,761 contracts.

## Largest open interest increases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-11-30 | 570 | put | 1,080 | 76,080 | +75,000 |
| SPY | 2026-11-30 | 675 | put | 974 | 75,680 | +74,706 |
| QQQ | 2026-10-06 | 749 | put | 1,334 | 53,704 | +52,370 |
| CMG | 2026-12-18 | 25 | put | 4,151 | 51,645 | +47,494 |
| DVN | 2026-11-20 | 50 | call | 34,730 | 61,691 | +26,961 |
| IWM | 2026-10-30 | 284 | call | 672 | 25,984 | +25,312 |
| IWM | 2026-10-30 | 270 | put | 13,100 | 37,081 | +23,981 |
| IWM | 2026-10-16 | 272 | put | 92,987 | 115,169 | +22,182 |
| IWM | 2026-11-20 | 269 | put | 10,221 | 31,359 | +21,138 |
| IWM | 2026-10-16 | 289 | call | 4,571 | 24,672 | +20,101 |
| SPY | 2026-10-09 | 767 | put | 46,642 | 64,556 | +17,914 |
| TLT | 2026-12-18 | 76 | put | 22,355 | 39,329 | +16,974 |
| SPY | 2026-10-09 | 785 | call | 109,589 | 125,938 | +16,349 |
| TLT | 2026-12-18 | 70 | put | 12,714 | 28,993 | +16,279 |
| XLF | 2026-11-20 | 53 | put | 52,779 | 68,814 | +16,035 |
| XLF | 2027-06-17 | 55 | put | 6,379 | 21,379 | +15,000 |
| IWM | 2026-11-20 | 267 | put | 3,165 | 18,136 | +14,971 |
| XLU | 2027-01-15 | 44 | call | 9,095 | 23,937 | +14,842 |
| TLT | 2026-10-12 | 83 | call | 13,217 | 28,037 | +14,820 |
| SPY | 2026-10-06 | 777 | call | 2,141 | 16,737 | +14,596 |

## Largest open interest decreases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-10-09 | 787 | call | 234,105 | 33,367 | -200,738 |
| QQQ | 2026-12-18 | 815 | call | 37,280 | 16,704 | -20,576 |
| XLF | 2026-10-16 | 54.5 | put | 114,445 | 98,340 | -16,105 |
| IWM | 2026-10-16 | 270 | put | 101,788 | 86,064 | -15,724 |
| TLT | 2026-10-16 | 82 | put | 31,128 | 17,138 | -13,990 |
| QQQ | 2026-10-06 | 740 | put | 25,530 | 14,129 | -11,401 |
| SPY | 2026-10-09 | 780 | call | 44,701 | 34,679 | -10,022 |
| IWM | 2026-11-20 | 268 | put | 25,610 | 15,724 | -9,886 |
| IWM | 2026-10-09 | 285 | call | 27,977 | 18,106 | -9,871 |
| SPY | 2026-10-23 | 795 | call | 12,953 | 3,851 | -9,102 |
| TLT | 2026-10-16 | 74 | put | 16,627 | 8,828 | -7,799 |
| SLB | 2026-11-20 | 57.5 | call | 11,870 | 4,808 | -7,062 |
| TLT | 2026-12-18 | 78 | put | 45,739 | 38,743 | -6,996 |
| TLT | 2026-10-16 | 80 | call | 136,287 | 129,433 | -6,854 |
| TLT | 2027-01-15 | 90 | put | 50,573 | 43,952 | -6,621 |
| QQQ | 2026-10-16 | 660 | put | 31,750 | 25,157 | -6,593 |
| IWM | 2026-10-16 | 277 | put | 49,185 | 42,638 | -6,547 |
| META | 2026-10-30 | 1,000 | call | 7,685 | 1,315 | -6,370 |
| IWM | 2026-10-16 | 262 | put | 16,794 | 10,468 | -6,326 |
| QQQ | 2026-10-16 | 695 | put | 36,680 | 30,450 | -6,230 |

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

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-11-30 | 570 | put | 1,080 | 76,080 | +75,000 |
| SPY | 2026-11-30 | 675 | put | 974 | 75,680 | +74,706 |
| QQQ | 2026-10-06 | 749 | put | 1,334 | 53,704 | +52,370 |
| IWM | 2026-10-30 | 284 | call | 672 | 25,984 | +25,312 |
| IWM | 2026-10-30 | 270 | put | 13,100 | 37,081 | +23,981 |
| IWM | 2026-10-16 | 272 | put | 92,987 | 115,169 | +22,182 |
| IWM | 2026-11-20 | 269 | put | 10,221 | 31,359 | +21,138 |
| IWM | 2026-10-16 | 289 | call | 4,571 | 24,672 | +20,101 |
| SPY | 2026-10-09 | 767 | put | 46,642 | 64,556 | +17,914 |
| SPY | 2026-10-09 | 785 | call | 109,589 | 125,938 | +16,349 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-10-09 | 787 | call | 234,105 | 33,367 | -200,738 |
| QQQ | 2026-12-18 | 815 | call | 37,280 | 16,704 | -20,576 |
| IWM | 2026-10-16 | 270 | put | 101,788 | 86,064 | -15,724 |
| QQQ | 2026-10-06 | 740 | put | 25,530 | 14,129 | -11,401 |
| SPY | 2026-10-09 | 780 | call | 44,701 | 34,679 | -10,022 |
| IWM | 2026-11-20 | 268 | put | 25,610 | 15,724 | -9,886 |
| IWM | 2026-10-09 | 285 | call | 27,977 | 18,106 | -9,871 |
| SPY | 2026-10-23 | 795 | call | 12,953 | 3,851 | -9,102 |
| QQQ | 2026-10-16 | 660 | put | 31,750 | 25,157 | -6,593 |
| IWM | 2026-10-16 | 277 | put | 49,185 | 42,638 | -6,547 |

## Single stocks

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| CMG | 2026-12-18 | 25 | put | 4,151 | 51,645 | +47,494 |
| DVN | 2026-11-20 | 50 | call | 34,730 | 61,691 | +26,961 |
| SOFI | 2026-10-09 | 16.5 | call | 8,039 | 21,038 | +12,999 |
| SLB | 2026-11-20 | 50 | call | 1,126 | 11,608 | +10,482 |
| SLB | 2027-01-15 | 65 | call | 82,704 | 92,704 | +10,000 |
| LCID | 2026-10-09 | 4 | put | 691 | 10,316 | +9,625 |
| COIN | 2026-12-18 | 185 | call | 952 | 10,250 | +9,298 |
| SOFI | 2026-10-09 | 17 | call | 12,698 | 21,820 | +9,122 |
| INTC | 2026-10-30 | 88 | put | 668 | 9,369 | +8,701 |
| TSLA | 2026-10-07 | 380 | call | 1,654 | 10,220 | +8,566 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SLB | 2026-11-20 | 57.5 | call | 11,870 | 4,808 | -7,062 |
| META | 2026-10-30 | 1,000 | call | 7,685 | 1,315 | -6,370 |
| META | 2026-10-16 | 700 | call | 21,373 | 16,516 | -4,857 |
| COIN | 2026-10-16 | 150 | call | 9,778 | 5,084 | -4,694 |
| U | 2026-10-16 | 46 | call | 71,710 | 67,677 | -4,033 |
| INTC | 2026-10-30 | 130 | call | 10,775 | 7,461 | -3,314 |
| INTC | 2027-01-15 | 87.5 | put | 6,538 | 4,038 | -2,500 |
| UBER | 2026-10-16 | 70 | call | 6,881 | 4,451 | -2,430 |
| META | 2027-03-19 | 1,100 | call | 4,052 | 1,667 | -2,385 |
| MSFT | 2026-12-18 | 540 | call | 8,889 | 6,669 | -2,220 |

## Calls vs puts

| Type | Added | Removed | Net |
|---|---|---|---|
| Calls | +2,987,290 | -602,445 | +2,384,845 |
| Puts | +3,419,083 | -463,167 | +2,955,916 |

## 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 | 2026-11-30 | 570 | put | 1,080 | 76,080 | +75,000 | +6,944.4% |
| QQQ | 2026-10-06 | 749 | put | 1,334 | 53,704 | +52,370 | +3,925.8% |
| CMG | 2026-12-18 | 25 | put | 4,151 | 51,645 | +47,494 | +1,144.2% |
| SPY | 2026-10-12 | 680 | put | 1,019 | 10,825 | +9,806 | +962.3% |
| SLB | 2026-11-20 | 50 | call | 1,126 | 11,608 | +10,482 | +930.9% |
| XLF | 2027-12-17 | 70 | call | 1,732 | 14,688 | +12,956 | +748% |
| SPY | 2026-10-06 | 777 | call | 2,141 | 16,737 | +14,596 | +681.7% |
| TLT | 2026-10-09 | 74 | put | 1,717 | 12,693 | +10,976 | +639.3% |
| TLT | 2026-12-31 | 73 | put | 1,111 | 7,859 | +6,748 | +607.4% |
| SPY | 2026-10-06 | 773 | put | 1,699 | 10,572 | +8,873 | +522.2% |
| TSLA | 2026-10-07 | 380 | call | 1,654 | 10,220 | +8,566 | +517.9% |
| QQQ | 2026-10-08 | 749 | put | 2,204 | 13,380 | +11,176 | +507.1% |
| IWM | 2026-10-06 | 282 | put | 1,534 | 9,235 | +7,701 | +502% |
| SPY | 2026-10-06 | 785 | call | 1,167 | 6,933 | +5,766 | +494.1% |
| SPY | 2026-10-06 | 770 | put | 2,428 | 14,122 | +11,694 | +481.6% |
| SPY | 2026-10-06 | 776 | call | 1,859 | 10,782 | +8,923 | +480% |
| IWM | 2026-11-20 | 267 | put | 3,165 | 18,136 | +14,971 | +473% |
| META | 2026-10-09 | 780 | call | 1,099 | 6,080 | +4,981 | +453.2% |
| XLU | 2026-12-18 | 41 | call | 2,845 | 15,725 | +12,880 | +452.7% |
| IWM | 2026-10-16 | 289 | call | 4,571 | 24,672 | +20,101 | +439.8% |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | Change % |
|---|---|---|---|---|---|---|---|
| TLT | 2026-10-09 | 81 | put | 1,306 | 22 | -1,284 | -98.3% |
| SPY | 2026-10-09 | 787 | call | 234,105 | 33,367 | -200,738 | -85.7% |
| META | 2026-10-30 | 1,000 | call | 7,685 | 1,315 | -6,370 | -82.9% |
| AMD | 2026-10-30 | 670 | call | 1,856 | 456 | -1,400 | -75.4% |
| TLT | 2026-10-07 | 80 | put | 1,222 | 353 | -869 | -71.1% |
| SPY | 2026-10-23 | 795 | call | 12,953 | 3,851 | -9,102 | -70.3% |
| SPY | 2026-10-23 | 753 | put | 5,873 | 1,805 | -4,068 | -69.3% |
| TLT | 2026-10-09 | 80 | put | 2,676 | 824 | -1,852 | -69.2% |
| SHOP | 2026-10-16 | 133 | put | 1,959 | 646 | -1,313 | -67% |
| TLT | 2026-10-30 | 83 | put | 1,274 | 442 | -832 | -65.3% |
| SPX | 2026-10-07 | 7,735 | put | 1,983 | 720 | -1,263 | -63.7% |
| SPY | 2026-11-06 | 760 | call | 1,010 | 379 | -631 | -62.5% |
| QQQ | 2026-10-23 | 734 | put | 4,115 | 1,553 | -2,562 | -62.3% |
| SLB | 2026-11-20 | 57.5 | call | 11,870 | 4,808 | -7,062 | -59.5% |
| META | 2027-03-19 | 1,100 | call | 4,052 | 1,667 | -2,385 | -58.9% |
| META | 2026-10-23 | 700 | put | 2,485 | 1,061 | -1,424 | -57.3% |
| TLT | 2026-10-09 | 80.5 | put | 1,282 | 553 | -729 | -56.9% |
| BMY | 2026-10-09 | 60 | put | 1,153 | 497 | -656 | -56.9% |
| SPX | 2026-10-08 | 7,705 | put | 4,113 | 1,776 | -2,337 | -56.8% |
| QQQ | 2026-12-18 | 815 | call | 37,280 | 16,704 | -20,576 | -55.2% |

## Top strikes, summed across expirations

| Symbol | Strike | Type | Change | Expirations summed |
|---|---|---|---|---|
| SPY | 787 | call | -191,611 | 17 |
| SPY | 570 | put | +76,870 | 16 |
| SPY | 675 | put | +76,838 | 22 |
| QQQ | 749 | put | +64,142 | 15 |
| CMG | 25 | put | +48,207 | 13 |
| TLT | 78 | call | +43,873 | 28 |
| SPY | 770 | put | +38,358 | 31 |
| SPY | 765 | put | +33,797 | 29 |
| IWM | 275 | put | +29,550 | 26 |
| IWM | 284 | call | +29,221 | 17 |
| DVN | 50 | call | +27,469 | 11 |
| SPY | 785 | call | +27,287 | 25 |
| IWM | 272 | put | +25,969 | 16 |
| SPY | 772 | put | +24,989 | 18 |
| SPY | 767 | put | +24,099 | 17 |
| IWM | 289 | call | +23,778 | 16 |
| TLT | 77 | call | +23,383 | 28 |
| QQQ | 750 | put | +23,266 | 30 |
| SPY | 736 | put | +22,189 | 14 |
| XLF | 55 | put | +22,161 | 12 |

## Symbols by net change

Largest net increases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| SPY | +898,151 | +110,239 | +787,912 |
| SPX | +665,196 | +331,113 | +334,083 |
| QQQ | +652,702 | +167,887 | +484,815 |
| IWM | +347,281 | +118,508 | +228,773 |
| TLT | +328,186 | +237,405 | +90,781 |
| TSLA | +233,020 | +124,696 | +108,324 |
| INTC | +163,852 | +80,111 | +83,741 |
| MU | +132,385 | +66,857 | +65,528 |
| AMZN | +120,457 | +88,509 | +31,948 |
| SOFI | +111,838 | +78,151 | +33,687 |

Largest net decreases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| ROKU | -139 | -27 | -112 |
| ITW | -52 | -94 | +42 |
| KEY | -49 | +41 | -90 |

## 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/2026-10-05