# Biggest options open interest changes

OI settled 2026-10-27 vs 2026-10-26.

Computed from the Oct 27 settlement.

> Open interest change, not trades; it does not say which side opened or closed.

Source: SquawkFlow's own nightly archive of settled open interest. Updates once per session. Figures are contracts, not dollars: the archive holds no option prices.

212 of 214 archived US symbols compared. The other 2 lacked a consecutive settlement pair in the archive for these two sessions. 2 of those compared reported an identical book in both sessions.

Across the compared symbols: 101,199 contracts changed open interest, +7,258,172 added, -1,629,584 removed, net +5,628,588 contracts.

## Largest open interest increases (contracts)

| Ticker | Call/Put | Change | Strike | Expiry | DTE at settle | Prior OI | Current OI | Settled |
|---|---|---|---|---|---|---|---|---|
| SPY | Call | +63,466 | 800 | 2026-11-20 | 24 | 85,955 | 149,421 | 2026-10-27 |
| AAPL | Call | +63,185 | 380 | 2027-01-15 | 80 | 16,431 | 79,616 | 2026-10-27 |
| SPX | Put | +62,204 | 6,200 | 2026-12-11 | 45 | 15 | 62,219 | 2026-10-27 |
| SPX | Put | +57,329 | 6,100 | 2026-12-11 | 45 | 5,072 | 62,401 | 2026-10-27 |
| EWY | Call | +55,934 | 200 | 2026-12-18 | 52 | 7,540 | 63,474 | 2026-10-27 |
| EWY | Call | +55,757 | 180 | 2026-12-18 | 52 | 13,854 | 69,611 | 2026-10-27 |
| CMG | Put | +55,682 | 22.5 | 2026-12-18 | 52 | 2,212 | 57,894 | 2026-10-27 |
| CMG | Put | +49,996 | 22.5 | 2027-01-15 | 80 | 3,221 | 53,217 | 2026-10-27 |
| IWM | Put | +47,048 | 266 | 2026-11-20 | 24 | 11,044 | 58,092 | 2026-10-27 |
| GOOGL | Call | +38,685 | 360 | 2027-01-15 | 80 | 15,299 | 53,984 | 2026-10-27 |
| SPY | Call | +32,400 | 810 | 2026-12-18 | 52 | 101,811 | 134,211 | 2026-10-27 |
| NFLX | Call | +28,960 | 90 | 2027-12-17 | 416 | 4,645 | 33,605 | 2026-10-27 |
| XLF | Put | +26,000 | 50 | 2028-12-15 | 780 | 57,553 | 83,553 | 2026-10-27 |
| BKNG | Call | +20,881 | 154 | 2027-01-15 | 80 | 218 | 21,099 | 2026-10-27 |
| SPX | Call | +20,084 | 7,000 | 2027-09-17 | 325 | 30,795 | 50,879 | 2026-10-27 |
| SPX | Put | +20,082 | 8,000 | 2027-09-17 | 325 | 31,624 | 51,706 | 2026-10-27 |
| SPY | Put | +20,064 | 732 | 2026-11-20 | 24 | 13,365 | 33,429 | 2026-10-27 |
| SPX | Call | +20,055 | 8,000 | 2027-09-17 | 325 | 31,487 | 51,542 | 2026-10-27 |
| SPCX | Put | +19,946 | 25 | 2029-01-19 | 815 | 143 | 20,089 | 2026-10-27 |
| SPX | Put | +19,460 | 7,000 | 2027-09-17 | 325 | 34,105 | 53,565 | 2026-10-27 |

DTE at settle counts calendar days from the settlement date, not from today.

## Largest open interest decreases (contracts)

| Ticker | Call/Put | Change | Strike | Expiry | DTE at settle | Prior OI | Current OI | Settled |
|---|---|---|---|---|---|---|---|---|
| SPY | Put | -55,762 | 755 | 2026-10-30 | 3 | 95,908 | 40,146 | 2026-10-27 |
| SPY | Put | -43,733 | 745 | 2026-10-30 | 3 | 107,412 | 63,679 | 2026-10-27 |
| XLF | Call | -39,601 | 55 | 2027-03-19 | 143 | 70,474 | 30,873 | 2026-10-27 |
| AMZN | Call | -25,090 | 320 | 2026-11-20 | 24 | 34,284 | 9,194 | 2026-10-27 |
| AMZN | Call | -24,830 | 290 | 2026-11-20 | 24 | 67,796 | 42,966 | 2026-10-27 |
| GOOGL | Call | -22,197 | 420 | 2026-11-20 | 24 | 32,542 | 10,345 | 2026-10-27 |
| IWM | Put | -21,521 | 264 | 2026-11-20 | 24 | 77,598 | 56,077 | 2026-10-27 |
| XLE | Call | -20,469 | 48 | 2026-12-31 | 65 | 29,023 | 8,554 | 2026-10-27 |
| GOOGL | Call | -20,074 | 355 | 2026-11-20 | 24 | 35,374 | 15,300 | 2026-10-27 |
| CMG | Put | -18,488 | 25 | 2026-11-13 | 17 | 50,200 | 31,712 | 2026-10-27 |
| BKNG | Call | -12,182 | 150 | 2026-12-18 | 52 | 19,542 | 7,360 | 2026-10-27 |
| IWM | Put | -12,020 | 263 | 2026-11-20 | 24 | 99,374 | 87,354 | 2026-10-27 |
| SOFI | Call | -11,435 | 15 | 2026-11-20 | 24 | 35,971 | 24,536 | 2026-10-27 |
| IWM | Put | -10,435 | 259 | 2026-10-30 | 3 | 27,344 | 16,909 | 2026-10-27 |
| XLF | Put | -10,143 | 55 | 2026-11-20 | 24 | 79,129 | 68,986 | 2026-10-27 |
| JNJ | Put | -10,001 | 255 | 2026-10-30 | 3 | 11,232 | 1,231 | 2026-10-27 |
| EWY | Call | -9,600 | 187 | 2026-11-06 | 10 | 9,763 | 163 | 2026-10-27 |
| EWY | Call | -9,600 | 183 | 2026-11-06 | 10 | 9,709 | 109 | 2026-10-27 |
| EWY | Call | -9,520 | 173 | 2026-11-06 | 10 | 9,979 | 459 | 2026-10-27 |
| QQQ | Put | -9,132 | 690 | 2026-11-20 | 24 | 54,743 | 45,611 | 2026-10-27 |

DTE at settle counts calendar days from the settlement date, not from today.

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

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-11-20 | 800 | call | 85,955 | 149,421 | +63,466 |
| IWM | 2026-11-20 | 266 | put | 11,044 | 58,092 | +47,048 |
| SPY | 2026-12-18 | 810 | call | 101,811 | 134,211 | +32,400 |
| SPY | 2026-11-20 | 732 | put | 13,365 | 33,429 | +20,064 |
| SPY | 2026-10-30 | 664 | put | 1,999 | 18,266 | +16,267 |
| SPY | 2026-10-30 | 663 | put | 2,741 | 18,462 | +15,721 |
| SPY | 2026-10-30 | 671 | put | 766 | 16,110 | +15,344 |
| IWM | 2026-10-29 | 288 | call | 17 | 13,837 | +13,820 |
| IWM | 2026-11-13 | 262 | put | 379 | 13,781 | +13,402 |
| IWM | 2026-11-13 | 273 | put | 1,024 | 14,378 | +13,354 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-10-30 | 755 | put | 95,908 | 40,146 | -55,762 |
| SPY | 2026-10-30 | 745 | put | 107,412 | 63,679 | -43,733 |
| IWM | 2026-11-20 | 264 | put | 77,598 | 56,077 | -21,521 |
| IWM | 2026-11-20 | 263 | put | 99,374 | 87,354 | -12,020 |
| IWM | 2026-10-30 | 259 | put | 27,344 | 16,909 | -10,435 |
| QQQ | 2026-11-20 | 690 | put | 54,743 | 45,611 | -9,132 |
| IWM | 2026-11-06 | 260 | put | 23,047 | 14,067 | -8,980 |
| IWM | 2026-10-30 | 278 | call | 28,790 | 20,866 | -7,924 |
| IWM | 2026-11-06 | 270 | put | 22,057 | 14,499 | -7,558 |
| QQQ | 2026-11-02 | 720 | call | 9,309 | 2,018 | -7,291 |

## Single stocks

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| AAPL | 2027-01-15 | 380 | call | 16,431 | 79,616 | +63,185 |
| CMG | 2026-12-18 | 22.5 | put | 2,212 | 57,894 | +55,682 |
| CMG | 2027-01-15 | 22.5 | put | 3,221 | 53,217 | +49,996 |
| GOOGL | 2027-01-15 | 360 | call | 15,299 | 53,984 | +38,685 |
| NFLX | 2027-12-17 | 90 | call | 4,645 | 33,605 | +28,960 |
| BKNG | 2027-01-15 | 154 | call | 218 | 21,099 | +20,881 |
| SPCX | 2029-01-19 | 25 | put | 143 | 20,089 | +19,946 |
| SOFI | 2026-10-30 | 17 | call | 22,947 | 40,471 | +17,524 |
| NFLX | 2027-12-17 | 70 | call | 2,839 | 17,913 | +15,074 |
| KO | 2026-11-20 | 98 | call | 722 | 14,779 | +14,057 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| AMZN | 2026-11-20 | 320 | call | 34,284 | 9,194 | -25,090 |
| AMZN | 2026-11-20 | 290 | call | 67,796 | 42,966 | -24,830 |
| GOOGL | 2026-11-20 | 420 | call | 32,542 | 10,345 | -22,197 |
| GOOGL | 2026-11-20 | 355 | call | 35,374 | 15,300 | -20,074 |
| CMG | 2026-11-13 | 25 | put | 50,200 | 31,712 | -18,488 |
| BKNG | 2026-12-18 | 150 | call | 19,542 | 7,360 | -12,182 |
| SOFI | 2026-11-20 | 15 | call | 35,971 | 24,536 | -11,435 |
| JNJ | 2026-10-30 | 255 | put | 11,232 | 1,231 | -10,001 |
| NFLX | 2026-12-18 | 80 | put | 14,272 | 5,286 | -8,986 |
| BA | 2026-11-20 | 180 | put | 15,201 | 8,756 | -6,445 |

## Calls vs puts

| Type | Added | Removed | Net |
|---|---|---|---|
| Calls | +3,785,812 | -799,524 | +2,986,288 |
| Puts | +3,472,360 | -830,060 | +2,642,300 |

## 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 % |
|---|---|---|---|---|---|---|---|
| CMG | 2026-12-18 | 22.5 | put | 2,212 | 57,894 | +55,682 | +2,517.3% |
| CMG | 2027-01-15 | 22.5 | put | 3,221 | 53,217 | +49,996 | +1,552.2% |
| IWM | 2026-11-13 | 273 | put | 1,024 | 14,378 | +13,354 | +1,304.1% |
| SPX | 2026-12-11 | 6,100 | put | 5,072 | 62,401 | +57,329 | +1,130.3% |
| XLE | 2026-10-28 | 67 | put | 1,267 | 14,093 | +12,826 | +1,012.3% |
| NVDA | 2026-10-28 | 197.5 | put | 1,052 | 10,580 | +9,528 | +905.7% |
| SPY | 2026-10-30 | 664 | put | 1,999 | 18,266 | +16,267 | +813.8% |
| XLB | 2027-03-19 | 47 | put | 1,141 | 10,194 | +9,053 | +793.4% |
| EWY | 2026-12-18 | 200 | call | 7,540 | 63,474 | +55,934 | +741.8% |
| QQQ | 2027-02-19 | 780 | call | 1,008 | 8,401 | +7,393 | +733.4% |
| SPX | 2026-10-28 | 7,400 | put | 1,626 | 12,381 | +10,755 | +661.4% |
| SPY | 2026-10-30 | 669 | put | 1,168 | 8,744 | +7,576 | +648.6% |
| NFLX | 2027-12-17 | 90 | call | 4,645 | 33,605 | +28,960 | +623.5% |
| SPY | 2026-10-30 | 663 | put | 2,741 | 18,462 | +15,721 | +573.5% |
| NFLX | 2027-12-17 | 70 | call | 2,839 | 17,913 | +15,074 | +531% |
| SPY | 2026-10-28 | 768 | put | 1,007 | 6,175 | +5,168 | +513.2% |
| CMG | 2026-11-20 | 28 | put | 1,640 | 9,503 | +7,863 | +479.5% |
| NOW | 2026-10-30 | 140 | put | 1,566 | 8,755 | +7,189 | +459.1% |
| QQQ | 2026-10-28 | 715 | put | 1,160 | 6,196 | +5,036 | +434.1% |
| IWM | 2026-11-20 | 266 | put | 11,044 | 58,092 | +47,048 | +426% |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | Change % |
|---|---|---|---|---|---|---|---|
| XLC | 2026-12-18 | 118 | put | 1,500 | 0 | -1,500 | -100% |
| BA | 2026-11-20 | 230 | put | 3,066 | 3 | -3,063 | -99.9% |
| EWY | 2026-11-06 | 183 | call | 9,709 | 109 | -9,600 | -98.9% |
| EWY | 2026-11-06 | 187 | call | 9,763 | 163 | -9,600 | -98.3% |
| NU | 2027-03-19 | 20 | put | 1,241 | 29 | -1,212 | -97.7% |
| EWY | 2026-11-06 | 173 | call | 9,979 | 459 | -9,520 | -95.4% |
| BA | 2026-12-18 | 220 | put | 2,338 | 155 | -2,183 | -93.4% |
| NVDA | 2026-10-30 | 235 | put | 1,391 | 104 | -1,287 | -92.5% |
| BA | 2028-01-21 | 270 | put | 2,457 | 215 | -2,242 | -91.2% |
| EWY | 2026-11-06 | 167.5 | call | 10,048 | 959 | -9,089 | -90.5% |
| BA | 2026-11-20 | 225 | put | 1,395 | 136 | -1,259 | -90.3% |
| JNJ | 2026-10-30 | 255 | put | 11,232 | 1,231 | -10,001 | -89% |
| BA | 2026-12-18 | 210 | put | 2,111 | 289 | -1,822 | -86.3% |
| META | 2026-10-30 | 700 | put | 1,713 | 271 | -1,442 | -84.2% |
| SLV | 2026-11-06 | 49.5 | call | 2,776 | 453 | -2,323 | -83.7% |
| NFLX | 2027-06-17 | 96 | put | 2,062 | 372 | -1,690 | -82% |
| XLE | 2026-11-20 | 77 | call | 2,324 | 464 | -1,860 | -80% |
| BA | 2026-10-30 | 190 | put | 2,394 | 499 | -1,895 | -79.2% |
| FXI | 2026-11-20 | 36 | put | 3,245 | 692 | -2,553 | -78.7% |
| NFLX | 2026-11-20 | 77.5 | put | 2,446 | 524 | -1,922 | -78.6% |

## Top strikes, summed across expirations

| Symbol | Strike | Type | Change | Expirations summed |
|---|---|---|---|---|
| CMG | 22.5 | put | +106,045 | 4 |
| SPY | 800 | call | +66,322 | 29 |
| SPX | 6,200 | put | +64,891 | 31 |
| AAPL | 380 | call | +64,688 | 20 |
| SPX | 6,100 | put | +58,715 | 26 |
| EWY | 180 | call | +56,698 | 10 |
| EWY | 200 | call | +56,177 | 6 |
| SPY | 755 | put | -49,387 | 26 |
| IWM | 266 | put | +46,847 | 11 |
| SPY | 745 | put | -42,858 | 27 |
| XLF | 55 | call | -39,524 | 11 |
| GOOGL | 360 | call | +39,318 | 22 |
| SPX | 7,000 | call | +36,773 | 19 |
| SPX | 7,000 | put | +34,720 | 44 |
| SPX | 8,000 | put | +32,509 | 19 |
| SPY | 810 | call | +32,184 | 23 |
| NFLX | 90 | call | +29,221 | 13 |
| SOFI | 17 | call | +28,733 | 14 |
| SPX | 8,000 | call | +28,362 | 42 |
| AMZN | 320 | call | -24,914 | 19 |

## Symbols by net change

Largest net increases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| SPX | +719,961 | +253,792 | +466,169 |
| SPY | +514,489 | +255,174 | +259,315 |
| QQQ | +403,681 | +126,466 | +277,215 |
| TSLA | +281,136 | +129,604 | +151,532 |
| NVDA | +199,856 | +94,082 | +105,774 |
| AAPL | +192,513 | +130,844 | +61,669 |
| EWY | +161,518 | +144,737 | +16,781 |
| SPCX | +160,590 | +90,797 | +69,793 |
| IWM | +146,994 | +85,878 | +61,116 |
| BA | +140,214 | +98,640 | +41,574 |

Largest net decreases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| JNJ | -6,409 | +1,187 | -7,596 |
| MDT | -303 | -665 | +362 |
| SYK | -249 | -315 | +66 |
| MQ | -3 | -4 | +1 |

## Archive

- https://squawkflow.com/oi-changes/2026-10-29.md (2026-10-29 vs 2026-10-28, 212 symbols)
- https://squawkflow.com/oi-changes/2026-10-28.md (2026-10-28 vs 2026-10-27, 212 symbols)
- https://squawkflow.com/oi-changes/2026-10-27.md (2026-10-27 vs 2026-10-26, 212 symbols)
- https://squawkflow.com/oi-changes/2026-10-26.md (2026-10-26 vs 2026-10-23, 212 symbols)
- https://squawkflow.com/oi-changes/2026-10-23.md (2026-10-23 vs 2026-10-22, 212 symbols)
- https://squawkflow.com/oi-changes/2026-10-22.md (2026-10-22 vs 2026-10-21, 212 symbols)
- https://squawkflow.com/oi-changes/2026-10-21.md (2026-10-21 vs 2026-10-20, 212 symbols)
- https://squawkflow.com/oi-changes/2026-10-20.md (2026-10-20 vs 2026-10-19, 212 symbols)
- https://squawkflow.com/oi-changes/2026-10-19.md (2026-10-19 vs 2026-10-16, 212 symbols)
- https://squawkflow.com/oi-changes/2026-10-16.md (2026-10-16 vs 2026-10-15, 212 symbols)

SPX open interest change by strike: https://squawkflow.com/oi-change.md

Canonical: https://squawkflow.com/oi-changes/2026-10-27