# Biggest options open interest changes

OI settled 2026-10-23 vs 2026-10-22.

Computed from the Oct 23 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.

Across the compared symbols: 102,914 contracts changed open interest, +8,839,286 added, -1,513,077 removed, net +7,326,209 contracts.

## Largest open interest increases (contracts)

| Ticker | Call/Put | Change | Strike | Expiry | DTE at settle | Prior OI | Current OI | Settled |
|---|---|---|---|---|---|---|---|---|
| EWZ | Call | +131,966 | 50 | 2026-12-18 | 56 | 478,337 | 610,303 | 2026-10-23 |
| SPY | Put | +127,468 | 755 | 2026-10-30 | 7 | 23,470 | 150,938 | 2026-10-23 |
| EWZ | Call | +105,220 | 46 | 2026-12-18 | 56 | 386,429 | 491,649 | 2026-10-23 |
| SPY | Put | +76,562 | 745 | 2026-10-30 | 7 | 81,237 | 157,799 | 2026-10-23 |
| XLP | Put | +75,071 | 85 | 2027-03-19 | 147 | 4,121 | 79,192 | 2026-10-23 |
| SOFI | Put | +56,090 | 14 | 2026-11-20 | 28 | 16,043 | 72,133 | 2026-10-23 |
| TLT | Call | +52,364 | 82 | 2026-10-30 | 7 | 40,807 | 93,171 | 2026-10-23 |
| EWZ | Call | +38,698 | 44 | 2026-11-20 | 28 | 201,642 | 240,340 | 2026-10-23 |
| IWM | Put | +35,686 | 261 | 2026-11-20 | 28 | 50,763 | 86,449 | 2026-10-23 |
| EWZ | Call | +33,180 | 48 | 2026-11-20 | 28 | 224,264 | 257,444 | 2026-10-23 |
| IWM | Put | +32,942 | 260 | 2026-11-20 | 28 | 99,553 | 132,495 | 2026-10-23 |
| EWZ | Call | +32,500 | 53 | 2027-01-15 | 84 | 10,170 | 42,670 | 2026-10-23 |
| MSTR | Call | +31,977 | 152.5 | 2026-10-30 | 7 | 5,848 | 37,825 | 2026-10-23 |
| NVDA | Call | +30,792 | 220 | 2026-10-30 | 7 | 17,097 | 47,889 | 2026-10-23 |
| NU | Call | +30,590 | 18 | 2026-11-20 | 28 | 46,265 | 76,855 | 2026-10-23 |
| NVDA | Call | +29,927 | 215 | 2026-10-30 | 7 | 5,429 | 35,356 | 2026-10-23 |
| XLF | Put | +28,990 | 47 | 2027-01-15 | 84 | 58,731 | 87,721 | 2026-10-23 |
| IWM | Call | +28,856 | 282 | 2026-10-26 | 3 | 1,768 | 30,624 | 2026-10-23 |
| EWZ | Call | +28,750 | 54 | 2027-03-19 | 147 | 52,001 | 80,751 | 2026-10-23 |
| EWZ | Call | +28,112 | 45 | 2026-10-30 | 7 | 66,584 | 94,696 | 2026-10-23 |

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 |
|---|---|---|---|---|---|---|---|---|
| EWZ | Call | -46,278 | 48 | 2026-12-18 | 56 | 208,399 | 162,121 | 2026-10-23 |
| SPY | Put | -42,109 | 760 | 2026-10-30 | 7 | 78,081 | 35,972 | 2026-10-23 |
| EWZ | Call | -40,887 | 43 | 2026-12-18 | 56 | 178,325 | 137,438 | 2026-10-23 |
| SOFI | Put | -40,472 | 13 | 2026-11-20 | 28 | 63,385 | 22,913 | 2026-10-23 |
| EWZ | Put | -39,916 | 38 | 2026-10-30 | 7 | 130,925 | 91,009 | 2026-10-23 |
| EWZ | Put | -39,871 | 34 | 2026-10-30 | 7 | 313,009 | 273,138 | 2026-10-23 |
| KWEB | Call | -25,588 | 24 | 2026-12-18 | 56 | 128,920 | 103,332 | 2026-10-23 |
| PLTR | Call | -24,252 | 175 | 2026-12-18 | 56 | 27,041 | 2,789 | 2026-10-23 |
| EWZ | Call | -23,500 | 48 | 2027-03-19 | 147 | 76,011 | 52,511 | 2026-10-23 |
| QQQ | Put | -16,350 | 700 | 2026-10-30 | 7 | 88,330 | 71,980 | 2026-10-23 |
| XLU | Call | -15,966 | 42 | 2026-10-30 | 7 | 28,580 | 12,614 | 2026-10-23 |
| EWZ | Call | -12,235 | 50 | 2026-11-20 | 28 | 191,709 | 179,474 | 2026-10-23 |
| QQQ | Put | -12,136 | 675 | 2026-10-30 | 7 | 54,487 | 42,351 | 2026-10-23 |
| XLE | Call | -12,000 | 57.5 | 2027-06-17 | 237 | 24,603 | 12,603 | 2026-10-23 |
| TSLA | Call | -11,345 | 350 | 2026-11-20 | 28 | 17,267 | 5,922 | 2026-10-23 |
| IWM | Put | -10,854 | 255 | 2026-11-20 | 28 | 53,394 | 42,540 | 2026-10-23 |
| IWM | Put | -10,416 | 260 | 2026-12-18 | 56 | 123,855 | 113,439 | 2026-10-23 |
| SPY | Put | -10,142 | 717 | 2026-10-30 | 7 | 18,054 | 7,912 | 2026-10-23 |
| XLE | Call | -10,000 | 60 | 2027-03-19 | 147 | 30,087 | 20,087 | 2026-10-23 |
| EWZ | Put | -9,798 | 37 | 2026-10-30 | 7 | 56,733 | 46,935 | 2026-10-23 |

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 | 2026-10-30 | 755 | put | 23,470 | 150,938 | +127,468 |
| SPY | 2026-10-30 | 745 | put | 81,237 | 157,799 | +76,562 |
| IWM | 2026-11-20 | 261 | put | 50,763 | 86,449 | +35,686 |
| IWM | 2026-11-20 | 260 | put | 99,553 | 132,495 | +32,942 |
| IWM | 2026-10-26 | 282 | call | 1,768 | 30,624 | +28,856 |
| IWM | 2026-11-20 | 262 | put | 49,982 | 77,607 | +27,625 |
| SPY | 2026-10-27 | 753 | put | 572 | 24,620 | +24,048 |
| IWM | 2026-10-27 | 283 | call | 936 | 21,752 | +20,816 |
| SPY | 2026-11-20 | 722 | put | 6,260 | 24,947 | +18,687 |
| IWM | 2027-01-15 | 250 | put | 39,634 | 55,334 | +15,700 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-10-30 | 760 | put | 78,081 | 35,972 | -42,109 |
| QQQ | 2026-10-30 | 700 | put | 88,330 | 71,980 | -16,350 |
| QQQ | 2026-10-30 | 675 | put | 54,487 | 42,351 | -12,136 |
| IWM | 2026-11-20 | 255 | put | 53,394 | 42,540 | -10,854 |
| IWM | 2026-12-18 | 260 | put | 123,855 | 113,439 | -10,416 |
| SPY | 2026-10-30 | 717 | put | 18,054 | 7,912 | -10,142 |
| SPY | 2026-10-27 | 767 | put | 29,417 | 22,028 | -7,389 |
| IWM | 2026-11-20 | 263 | put | 88,532 | 81,166 | -7,366 |
| SPY | 2026-10-30 | 750 | put | 55,649 | 48,659 | -6,990 |
| IWM | 2026-10-30 | 258 | put | 20,729 | 13,930 | -6,799 |

## Single stocks

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SOFI | 2026-11-20 | 14 | put | 16,043 | 72,133 | +56,090 |
| MSTR | 2026-10-30 | 152.5 | call | 5,848 | 37,825 | +31,977 |
| NVDA | 2026-10-30 | 220 | call | 17,097 | 47,889 | +30,792 |
| NU | 2026-11-20 | 18 | call | 46,265 | 76,855 | +30,590 |
| NVDA | 2026-10-30 | 215 | call | 5,429 | 35,356 | +29,927 |
| MSTR | 2026-10-30 | 160 | call | 6,726 | 34,397 | +27,671 |
| MSTR | 2026-10-30 | 90 | put | 3,885 | 30,745 | +26,860 |
| PEP | 2027-03-19 | 150 | call | 849 | 25,828 | +24,979 |
| NU | 2026-11-20 | 14.5 | call | 6,063 | 27,669 | +21,606 |
| MSTR | 2026-10-30 | 162.5 | call | 3,128 | 24,543 | +21,415 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SOFI | 2026-11-20 | 13 | put | 63,385 | 22,913 | -40,472 |
| PLTR | 2026-12-18 | 175 | call | 27,041 | 2,789 | -24,252 |
| TSLA | 2026-11-20 | 350 | call | 17,267 | 5,922 | -11,345 |
| JNJ | 2026-10-30 | 260 | put | 11,284 | 3,913 | -7,371 |
| NFLX | 2026-11-20 | 77.5 | call | 15,601 | 9,068 | -6,533 |
| FISV | 2026-11-20 | 50 | call | 16,613 | 10,109 | -6,504 |
| RIVN | 2026-12-18 | 20 | call | 36,599 | 30,883 | -5,716 |
| NU | 2026-11-20 | 14 | call | 95,545 | 90,018 | -5,527 |
| NFLX | 2026-10-30 | 77 | call | 12,098 | 7,000 | -5,098 |
| GE | 2026-11-20 | 350 | call | 17,086 | 12,061 | -5,025 |

## Calls vs puts

| Type | Added | Removed | Net |
|---|---|---|---|
| Calls | +4,361,659 | -766,251 | +3,595,408 |
| Puts | +4,477,627 | -746,826 | +3,730,801 |

## 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 % |
|---|---|---|---|---|---|---|---|
| XLP | 2027-03-19 | 85 | put | 4,121 | 79,192 | +75,071 | +1,821.7% |
| IWM | 2026-10-26 | 282 | call | 1,768 | 30,624 | +28,856 | +1,632.1% |
| SPX | 2026-10-26 | 7,350 | put | 1,042 | 11,639 | +10,597 | +1,017% |
| AAPL | 2026-10-30 | 185 | put | 1,261 | 12,143 | +10,882 | +863% |
| XLP | 2027-06-17 | 85 | put | 1,319 | 12,233 | +10,914 | +827.4% |
| GE | 2027-01-15 | 300 | call | 1,344 | 11,365 | +10,021 | +745.6% |
| TSLA | 2026-10-30 | 230 | put | 2,752 | 21,935 | +19,183 | +697.1% |
| MSTR | 2026-10-30 | 90 | put | 3,885 | 30,745 | +26,860 | +691.4% |
| MSTR | 2026-10-30 | 162.5 | call | 3,128 | 24,543 | +21,415 | +684.6% |
| PLTR | 2026-10-30 | 202.5 | call | 1,512 | 10,949 | +9,437 | +624.1% |
| MSTR | 2026-10-30 | 75 | put | 1,433 | 9,585 | +8,152 | +568.9% |
| SPY | 2026-10-27 | 777 | call | 1,032 | 6,903 | +5,871 | +568.9% |
| EWY | 2027-01-15 | 130 | put | 2,184 | 14,224 | +12,040 | +551.3% |
| NVDA | 2026-10-30 | 215 | call | 5,429 | 35,356 | +29,927 | +551.2% |
| MSTR | 2026-10-30 | 152.5 | call | 5,848 | 37,825 | +31,977 | +546.8% |
| SPY | 2026-10-30 | 755 | put | 23,470 | 150,938 | +127,468 | +543.1% |
| SPX | 2026-10-26 | 6,200 | put | 1,647 | 10,493 | +8,846 | +537.1% |
| COIN | 2026-10-30 | 172.5 | call | 1,830 | 11,600 | +9,770 | +533.9% |
| QQQ | 2026-11-02 | 730 | call | 1,380 | 8,562 | +7,182 | +520.4% |
| SPX | 2026-10-26 | 7,300 | put | 1,608 | 9,803 | +8,195 | +509.6% |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | Change % |
|---|---|---|---|---|---|---|---|
| QQQ | 2026-10-26 | 730 | put | 1,100 | 22 | -1,078 | -98% |
| SPY | 2026-10-30 | 785 | put | 1,515 | 68 | -1,447 | -95.5% |
| TSLA | 2026-12-04 | 440 | call | 1,196 | 76 | -1,120 | -93.6% |
| PLTR | 2026-12-18 | 175 | call | 27,041 | 2,789 | -24,252 | -89.7% |
| NFLX | 2027-01-15 | 88 | put | 1,610 | 175 | -1,435 | -89.1% |
| MU | 2026-11-27 | 900 | call | 2,593 | 692 | -1,901 | -73.3% |
| NBIS | 2026-10-30 | 225 | put | 2,642 | 773 | -1,869 | -70.7% |
| TSLA | 2026-11-20 | 350 | call | 17,267 | 5,922 | -11,345 | -65.7% |
| JNJ | 2026-10-30 | 260 | put | 11,284 | 3,913 | -7,371 | -65.3% |
| SPY | 2027-01-29 | 745 | put | 4,056 | 1,406 | -2,650 | -65.3% |
| CRWD | 2026-10-30 | 245 | call | 2,529 | 901 | -1,628 | -64.4% |
| SOFI | 2026-11-20 | 13 | put | 63,385 | 22,913 | -40,472 | -63.9% |
| TSLA | 2026-11-27 | 385 | put | 1,258 | 516 | -742 | -59% |
| AAPL | 2026-11-27 | 365 | call | 1,803 | 741 | -1,062 | -58.9% |
| SPY | 2026-10-30 | 717 | put | 18,054 | 7,912 | -10,142 | -56.2% |
| XLU | 2026-10-30 | 42 | call | 28,580 | 12,614 | -15,966 | -55.9% |
| SPY | 2026-10-30 | 760 | put | 78,081 | 35,972 | -42,109 | -53.9% |
| NFLX | 2027-06-17 | 100 | put | 3,904 | 1,884 | -2,020 | -51.7% |
| SNDK | 2026-11-20 | 1,500 | call | 4,409 | 2,136 | -2,273 | -51.6% |
| QQQ | 2026-12-18 | 698 | put | 1,813 | 880 | -933 | -51.5% |

## Top strikes, summed across expirations

| Symbol | Strike | Type | Change | Expirations summed |
|---|---|---|---|---|
| EWZ | 46 | call | +165,284 | 10 |
| SPY | 755 | put | +134,594 | 29 |
| EWZ | 50 | call | +116,816 | 8 |
| XLP | 85 | put | +101,846 | 10 |
| SPY | 745 | put | +79,439 | 24 |
| SOFI | 14 | put | +57,369 | 9 |
| NVDA | 220 | call | +53,315 | 24 |
| TLT | 82 | call | +51,264 | 27 |
| IWM | 262 | put | +43,351 | 12 |
| NVDA | 215 | call | +42,636 | 23 |
| EWZ | 48 | call | -42,414 | 5 |
| EWZ | 38 | put | -41,473 | 7 |
| EWZ | 44 | call | +41,388 | 9 |
| EWZ | 53 | call | +39,807 | 4 |
| SOFI | 13 | put | -39,078 | 16 |
| EWZ | 34 | put | -37,417 | 6 |
| IWM | 261 | put | +36,371 | 12 |
| EWZ | 45 | call | +35,979 | 13 |
| SPY | 760 | put | -33,730 | 29 |
| MSTR | 152.5 | call | +32,377 | 4 |

## Symbols by net change

Largest net increases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| SPX | +680,045 | +217,237 | +462,808 |
| SPY | +678,457 | +196,310 | +482,147 |
| EWZ | +461,586 | +445,249 | +16,337 |
| QQQ | +459,368 | +228,323 | +231,045 |
| NVDA | +457,346 | +241,811 | +215,535 |
| IWM | +341,381 | +115,314 | +226,067 |
| AAPL | +214,979 | +88,038 | +126,941 |
| TSLA | +214,389 | +103,114 | +111,275 |
| MSTR | +213,024 | +137,827 | +75,197 |
| SPCX | +208,173 | +107,772 | +100,401 |

Largest net decreases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| KWEB | -20,554 | -24,521 | +3,967 |
| XLU | -15,066 | -18,260 | +3,194 |
| FISV | -3,723 | -4,524 | +801 |
| XLI | -1,384 | +2,571 | -3,955 |
| ILMN | -513 | -268 | -245 |
| XLRE | -208 | +8 | -216 |
| FIS | -184 | -350 | +166 |
| TMO | -174 | -416 | +242 |
| HUBS | -172 | -236 | +64 |

## 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/2026-10-23