# Biggest options open interest changes

OI settled 2026-10-26 vs 2026-10-23.

Computed from the Oct 26 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: 103,527 contracts changed open interest, +8,669,984 added, -1,926,522 removed, net +6,743,462 contracts.

## Largest open interest increases (contracts)

| Ticker | Call/Put | Change | Strike | Expiry | DTE at settle | Prior OI | Current OI | Settled |
|---|---|---|---|---|---|---|---|---|
| EWZ | Call | +117,109 | 41 | 2026-11-20 | 25 | 125,216 | 242,325 | 2026-10-26 |
| EWZ | Call | +61,063 | 47 | 2026-11-20 | 25 | 139,834 | 200,897 | 2026-10-26 |
| SPY | Put | +60,523 | 750 | 2026-11-20 | 25 | 87,211 | 147,734 | 2026-10-26 |
| XLF | Call | +43,391 | 58 | 2027-06-17 | 234 | 9,004 | 52,395 | 2026-10-26 |
| SPY | Put | +42,937 | 725 | 2026-11-20 | 25 | 34,795 | 77,732 | 2026-10-26 |
| NFLX | Put | +42,239 | 56 | 2026-12-18 | 53 | 1,459 | 43,698 | 2026-10-26 |
| MSFT | Call | +41,345 | 585 | 2027-01-15 | 81 | 1,591 | 42,936 | 2026-10-26 |
| EWZ | Call | +37,469 | 44 | 2026-10-30 | 4 | 46,735 | 84,204 | 2026-10-26 |
| EWZ | Call | +34,306 | 47 | 2026-10-30 | 4 | 71,418 | 105,724 | 2026-10-26 |
| EWZ | Call | +34,048 | 52 | 2026-12-18 | 53 | 39,020 | 73,068 | 2026-10-26 |
| QQQ | Put | +33,606 | 675 | 2026-11-06 | 11 | 7,427 | 41,033 | 2026-10-26 |
| SPCX | Call | +33,136 | 175 | 2026-11-06 | 11 | 3,036 | 36,172 | 2026-10-26 |
| EWZ | Call | +31,182 | 50 | 2026-12-18 | 53 | 610,303 | 641,485 | 2026-10-26 |
| EWZ | Call | +31,165 | 33 | 2027-03-19 | 144 | 1,499 | 32,664 | 2026-10-26 |
| IWM | Put | +30,547 | 264 | 2026-11-20 | 25 | 47,051 | 77,598 | 2026-10-26 |
| EWZ | Put | +30,532 | 30 | 2027-03-19 | 144 | 7,652 | 38,184 | 2026-10-26 |
| EWZ | Call | +30,515 | 43 | 2026-11-20 | 25 | 823,596 | 854,111 | 2026-10-26 |
| EWZ | Put | +29,778 | 33 | 2026-11-20 | 25 | 25,373 | 55,151 | 2026-10-26 |
| SPCX | Call | +27,585 | 160 | 2026-10-30 | 4 | 12,356 | 39,941 | 2026-10-26 |
| EWZ | Call | +26,646 | 50 | 2027-01-15 | 81 | 266,577 | 293,223 | 2026-10-26 |

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 | -121,852 | 39 | 2026-11-20 | 25 | 211,265 | 89,413 | 2026-10-26 |
| EWZ | Put | -92,248 | 34 | 2026-10-30 | 4 | 273,138 | 180,890 | 2026-10-26 |
| EWZ | Put | -87,027 | 36 | 2026-10-30 | 4 | 231,271 | 144,244 | 2026-10-26 |
| EWZ | Call | -70,025 | 46 | 2026-12-18 | 53 | 491,649 | 421,624 | 2026-10-26 |
| SPY | Put | -55,030 | 755 | 2026-10-30 | 4 | 150,938 | 95,908 | 2026-10-26 |
| SPY | Put | -50,387 | 745 | 2026-10-30 | 4 | 157,799 | 107,412 | 2026-10-26 |
| IWM | Put | -31,611 | 262 | 2026-11-20 | 25 | 77,607 | 45,996 | 2026-10-26 |
| TLT | Put | -30,693 | 75 | 2026-11-20 | 25 | 107,539 | 76,846 | 2026-10-26 |
| QQQ | Put | -27,479 | 700 | 2026-10-30 | 4 | 71,980 | 44,501 | 2026-10-26 |
| NFLX | Put | -23,808 | 60 | 2026-11-20 | 25 | 55,590 | 31,782 | 2026-10-26 |
| EWZ | Call | -23,071 | 43 | 2026-12-18 | 53 | 137,438 | 114,367 | 2026-10-26 |
| PEP | Call | -20,041 | 140 | 2026-12-18 | 53 | 37,406 | 17,365 | 2026-10-26 |
| CMG | Put | -20,002 | 27.5 | 2026-11-20 | 25 | 44,142 | 24,140 | 2026-10-26 |
| EWZ | Call | -19,150 | 54 | 2027-03-19 | 144 | 80,751 | 61,601 | 2026-10-26 |
| QQQ | Put | -18,725 | 690 | 2026-10-30 | 4 | 90,898 | 72,173 | 2026-10-26 |
| XLF | Call | -18,001 | 52 | 2027-01-15 | 81 | 40,084 | 22,083 | 2026-10-26 |
| QQQ | Put | -15,751 | 675 | 2026-10-30 | 4 | 42,351 | 26,600 | 2026-10-26 |
| EWZ | Put | -15,696 | 37 | 2026-10-30 | 4 | 46,935 | 31,239 | 2026-10-26 |
| NFLX | Put | -12,362 | 80 | 2026-11-20 | 25 | 15,123 | 2,761 | 2026-10-26 |
| EWZ | Call | -12,096 | 51 | 2026-12-18 | 53 | 156,976 | 144,880 | 2026-10-26 |

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 | 750 | put | 87,211 | 147,734 | +60,523 |
| SPY | 2026-11-20 | 725 | put | 34,795 | 77,732 | +42,937 |
| QQQ | 2026-11-06 | 675 | put | 7,427 | 41,033 | +33,606 |
| IWM | 2026-11-20 | 264 | put | 47,051 | 77,598 | +30,547 |
| QQQ | 2026-10-30 | 618 | put | 497 | 21,405 | +20,908 |
| SPY | 2026-10-30 | 750 | put | 48,659 | 69,005 | +20,346 |
| SPY | 2026-11-20 | 728 | put | 15,102 | 35,364 | +20,262 |
| IWM | 2026-11-20 | 263 | put | 81,166 | 99,374 | +18,208 |
| SPY | 2026-10-29 | 758 | put | 279 | 15,817 | +15,538 |
| SPY | 2026-10-29 | 748 | put | 2,880 | 17,753 | +14,873 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-10-30 | 755 | put | 150,938 | 95,908 | -55,030 |
| SPY | 2026-10-30 | 745 | put | 157,799 | 107,412 | -50,387 |
| IWM | 2026-11-20 | 262 | put | 77,607 | 45,996 | -31,611 |
| QQQ | 2026-10-30 | 700 | put | 71,980 | 44,501 | -27,479 |
| QQQ | 2026-10-30 | 690 | put | 90,898 | 72,173 | -18,725 |
| QQQ | 2026-10-30 | 675 | put | 42,351 | 26,600 | -15,751 |
| SPY | 2026-11-20 | 722 | put | 24,947 | 18,329 | -6,618 |
| QQQ | 2026-10-30 | 695 | put | 24,356 | 19,030 | -5,326 |
| SPY | 2026-10-27 | 753 | put | 24,620 | 20,017 | -4,603 |
| QQQ | 2026-10-30 | 745 | put | 5,908 | 1,343 | -4,565 |

## Single stocks

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| NFLX | 2026-12-18 | 56 | put | 1,459 | 43,698 | +42,239 |
| MSFT | 2027-01-15 | 585 | call | 1,591 | 42,936 | +41,345 |
| SPCX | 2026-11-06 | 175 | call | 3,036 | 36,172 | +33,136 |
| SPCX | 2026-10-30 | 160 | call | 12,356 | 39,941 | +27,585 |
| TSLA | 2026-10-30 | 150 | put | 1,121 | 25,693 | +24,572 |
| SPCX | 2026-10-30 | 162.5 | call | 4,306 | 24,969 | +20,663 |
| PFE | 2026-10-30 | 31 | call | 2,781 | 16,514 | +13,733 |
| NVDA | 2026-10-30 | 227.5 | call | 8,990 | 22,148 | +13,158 |
| NVDA | 2026-10-30 | 230 | call | 24,444 | 36,754 | +12,310 |
| SCHW | 2026-10-30 | 88 | put | 102 | 12,327 | +12,225 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| NFLX | 2026-11-20 | 60 | put | 55,590 | 31,782 | -23,808 |
| PEP | 2026-12-18 | 140 | call | 37,406 | 17,365 | -20,041 |
| CMG | 2026-11-20 | 27.5 | put | 44,142 | 24,140 | -20,002 |
| NFLX | 2026-11-20 | 80 | put | 15,123 | 2,761 | -12,362 |
| META | 2027-01-15 | 830 | call | 41,052 | 29,750 | -11,302 |
| GOOGL | 2026-10-30 | 345 | call | 16,867 | 6,441 | -10,426 |
| GOOGL | 2026-10-30 | 365 | call | 16,145 | 6,638 | -9,507 |
| NFLX | 2027-01-15 | 85 | put | 11,288 | 2,686 | -8,602 |
| AMZN | 2026-12-18 | 295 | call | 17,400 | 9,021 | -8,379 |
| NU | 2026-11-20 | 15 | call | 52,151 | 45,295 | -6,856 |

## Calls vs puts

| Type | Added | Removed | Net |
|---|---|---|---|
| Calls | +4,818,954 | -845,221 | +3,973,733 |
| Puts | +3,851,030 | -1,081,301 | +2,769,729 |

## 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 % |
|---|---|---|---|---|---|---|---|
| NFLX | 2026-12-18 | 56 | put | 1,459 | 43,698 | +42,239 | +2,895.1% |
| MSFT | 2027-01-15 | 585 | call | 1,591 | 42,936 | +41,345 | +2,598.7% |
| TSLA | 2026-10-30 | 150 | put | 1,121 | 25,693 | +24,572 | +2,192% |
| EWZ | 2027-03-19 | 33 | call | 1,499 | 32,664 | +31,165 | +2,079.1% |
| XLF | 2027-06-17 | 57 | call | 1,688 | 22,688 | +21,000 | +1,244.1% |
| SPY | 2026-10-27 | 765 | put | 1,042 | 12,455 | +11,413 | +1,095.3% |
| SPCX | 2026-11-06 | 175 | call | 3,036 | 36,172 | +33,136 | +1,091.4% |
| GE | 2026-11-20 | 320 | call | 1,208 | 11,107 | +9,899 | +819.5% |
| EWZ | 2026-10-30 | 38 | call | 1,358 | 12,330 | +10,972 | +808% |
| XLF | 2027-06-17 | 53 | put | 3,335 | 26,751 | +23,416 | +702.1% |
| EWZ | 2026-10-30 | 31 | put | 2,689 | 20,853 | +18,164 | +675.5% |
| SPY | 2026-11-30 | 680 | put | 1,405 | 10,164 | +8,759 | +623.4% |
| TSLA | 2026-10-28 | 210 | put | 1,085 | 7,086 | +6,001 | +553.1% |
| TLT | 2026-11-06 | 87 | call | 1,474 | 9,528 | +8,054 | +546.4% |
| SPY | 2026-10-28 | 793 | call | 1,405 | 8,677 | +7,272 | +517.6% |
| SPY | 2026-10-29 | 748 | put | 2,880 | 17,753 | +14,873 | +516.4% |
| EWZ | 2026-10-30 | 49 | call | 3,163 | 19,079 | +15,916 | +503.2% |
| PFE | 2026-10-30 | 31 | call | 2,781 | 16,514 | +13,733 | +493.8% |
| NKE | 2026-11-20 | 38.5 | put | 1,123 | 6,586 | +5,463 | +486.5% |
| XLF | 2027-06-17 | 58 | call | 9,004 | 52,395 | +43,391 | +481.9% |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | Change % |
|---|---|---|---|---|---|---|---|
| FXI | 2026-11-06 | 35 | put | 2,150 | 0 | -2,150 | -100% |
| QQQ | 2026-10-27 | 729 | put | 1,790 | 0 | -1,790 | -100% |
| NFLX | 2026-12-18 | 82 | put | 2,631 | 155 | -2,476 | -94.1% |
| JPM | 2026-12-04 | 350 | call | 1,330 | 91 | -1,239 | -93.2% |
| NFLX | 2026-12-18 | 83 | put | 1,769 | 128 | -1,641 | -92.8% |
| META | 2026-10-30 | 705 | put | 1,025 | 152 | -873 | -85.2% |
| NFLX | 2026-11-20 | 80 | put | 15,123 | 2,761 | -12,362 | -81.7% |
| NFLX | 2029-01-19 | 115 | put | 1,036 | 192 | -844 | -81.5% |
| NBIS | 2026-10-30 | 230 | put | 1,927 | 392 | -1,535 | -79.7% |
| QQQ | 2026-10-30 | 745 | put | 5,908 | 1,343 | -4,565 | -77.3% |
| NFLX | 2027-01-15 | 85 | put | 11,288 | 2,686 | -8,602 | -76.2% |
| EWZ | 2026-11-06 | 43 | put | 1,037 | 270 | -767 | -74% |
| INTC | 2026-10-30 | 61 | call | 1,047 | 293 | -754 | -72% |
| MRNA | 2027-01-15 | 190 | call | 1,199 | 384 | -815 | -68% |
| NVDA | 2026-11-20 | 197.5 | put | 5,587 | 1,832 | -3,755 | -67.2% |
| NFLX | 2026-12-18 | 85 | put | 1,886 | 657 | -1,229 | -65.2% |
| GOOGL | 2026-10-30 | 345 | call | 16,867 | 6,441 | -10,426 | -61.8% |
| SPX | 2026-11-02 | 7,775 | call | 3,576 | 1,419 | -2,157 | -60.3% |
| INTC | 2028-12-15 | 230 | call | 5,010 | 1,997 | -3,013 | -60.1% |
| MRNA | 2027-01-15 | 200 | call | 2,729 | 1,090 | -1,639 | -60.1% |

## Top strikes, summed across expirations

| Symbol | Strike | Type | Change | Expirations summed |
|---|---|---|---|---|
| EWZ | 41 | call | +131,683 | 13 |
| EWZ | 39 | call | -124,238 | 11 |
| EWZ | 47 | call | +114,401 | 11 |
| SPY | 750 | put | +88,512 | 27 |
| EWZ | 34 | put | -88,281 | 15 |
| EWZ | 35 | call | +72,462 | 19 |
| EWZ | 33 | put | +70,421 | 19 |
| EWZ | 36 | put | -68,445 | 15 |
| EWZ | 50 | call | +68,270 | 16 |
| EWZ | 35 | put | +65,604 | 16 |
| EWZ | 44 | call | +65,520 | 13 |
| EWZ | 33 | call | +55,740 | 19 |
| EWZ | 30 | put | +55,659 | 20 |
| XLF | 58 | call | +53,333 | 14 |
| SPY | 725 | put | +48,587 | 30 |
| SPY | 755 | put | -45,996 | 26 |
| NFLX | 56 | put | +42,944 | 10 |
| EWZ | 52 | call | +42,438 | 5 |
| MSFT | 585 | call | +42,420 | 14 |
| EWZ | 46 | call | -42,184 | 13 |

## Symbols by net change

Largest net increases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| EWZ | +983,793 | +833,014 | +150,779 |
| SPY | +583,927 | +207,347 | +376,580 |
| SPX | +515,630 | +201,622 | +314,008 |
| QQQ | +388,762 | +174,472 | +214,290 |
| TSLA | +293,440 | +146,510 | +146,930 |
| SPCX | +255,726 | +187,440 | +68,286 |
| NVDA | +254,402 | +165,510 | +88,892 |
| IWM | +172,113 | +78,428 | +93,685 |
| META | +165,417 | +113,065 | +52,352 |
| XLF | +153,632 | +105,278 | +48,354 |

Largest net decreases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| PEP | -12,925 | -16,447 | +3,522 |
| PAYX | -130 | -297 | +167 |
| WU | -124 | -83 | -41 |

## 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/2026-10-26