# Biggest options open interest changes

OI settled 2026-10-14 vs 2026-10-13.

> 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.

210 of 214 archived US symbols compared. The other 4 lacked a consecutive settlement pair in the archive for these two sessions. 4 of those compared reported an identical book in both sessions.

Across the compared symbols: 110,809 contracts changed open interest, +9,322,655 added, -2,821,385 removed, net +6,501,270 contracts.

## Largest open interest increases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| TLT | 2026-11-30 | 85 | call | 2,670 | 173,239 | +170,569 |
| EWZ | 2026-11-20 | 37 | put | 119,100 | 194,637 | +75,537 |
| EWZ | 2026-10-23 | 41.5 | put | 1,262 | 52,996 | +51,734 |
| XLU | 2026-10-30 | 41 | call | 51,281 | 92,079 | +40,798 |
| IWM | 2026-11-20 | 258 | put | 671 | 39,398 | +38,727 |
| ET | 2026-11-20 | 21 | call | 2,369 | 38,941 | +36,572 |
| EWZ | 2026-11-20 | 48 | call | 41,468 | 77,074 | +35,606 |
| C | 2026-11-20 | 110 | put | 9,210 | 43,318 | +34,108 |
| IWM | 2026-11-20 | 260 | put | 34,427 | 67,300 | +32,873 |
| QQQ | 2026-10-23 | 710 | put | 3,608 | 34,702 | +31,094 |
| TLT | 2026-11-20 | 80 | call | 59,831 | 87,108 | +27,277 |
| PFE | 2026-12-18 | 27 | put | 13,576 | 40,115 | +26,539 |
| TLT | 2027-03-19 | 78 | put | 13,573 | 39,861 | +26,288 |
| NVDA | 2026-12-18 | 210 | put | 52,347 | 78,059 | +25,712 |
| NVDA | 2026-12-18 | 170 | put | 39,457 | 64,986 | +25,529 |
| XLU | 2026-10-30 | 42 | call | 4,533 | 28,901 | +24,368 |
| EWZ | 2026-10-30 | 38 | put | 2,136 | 25,946 | +23,810 |
| SPY | 2026-10-15 | 772 | call | 1,501 | 23,849 | +22,348 |
| INTC | 2026-10-30 | 115 | call | 4,177 | 26,427 | +22,250 |
| IWM | 2026-11-06 | 267 | put | 336 | 21,513 | +21,177 |

## Largest open interest decreases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| GLD | 2026-12-18 | 450 | call | 137,309 | 84,064 | -53,245 |
| GLD | 2026-12-18 | 485 | call | 113,448 | 65,973 | -47,475 |
| IWM | 2026-10-16 | 285 | put | 50,294 | 6,454 | -43,840 |
| TLT | 2028-01-21 | 100 | call | 238,599 | 208,036 | -30,563 |
| TLT | 2027-01-15 | 77 | put | 74,327 | 46,590 | -27,737 |
| EWZ | 2027-01-15 | 54 | call | 54,415 | 31,514 | -22,901 |
| BAC | 2026-11-20 | 50 | put | 50,295 | 27,630 | -22,665 |
| AAPL | 2026-10-16 | 340 | call | 123,203 | 101,850 | -21,353 |
| GLD | 2026-10-16 | 400 | put | 33,097 | 13,152 | -19,945 |
| NVDA | 2026-10-16 | 235 | call | 84,763 | 65,900 | -18,863 |
| EWZ | 2027-01-15 | 47 | call | 41,849 | 24,537 | -17,312 |
| DASH | 2026-11-20 | 170 | call | 16,741 | 84 | -16,657 |
| IWM | 2026-11-20 | 263 | put | 59,789 | 43,730 | -16,059 |
| IWM | 2026-10-16 | 284 | put | 15,047 | 70 | -14,977 |
| IWM | 2026-11-20 | 300 | put | 14,888 | 87 | -14,801 |
| IWM | 2026-10-23 | 277 | put | 26,686 | 12,354 | -14,332 |
| IWM | 2026-10-16 | 280 | put | 64,636 | 50,584 | -14,052 |
| XLF | 2026-10-23 | 53 | put | 34,357 | 20,375 | -13,982 |
| MDT | 2026-12-18 | 82.5 | put | 14,332 | 831 | -13,501 |
| XLF | 2026-11-20 | 57 | put | 24,461 | 11,463 | -12,998 |

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

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| IWM | 2026-11-20 | 258 | put | 671 | 39,398 | +38,727 |
| IWM | 2026-11-20 | 260 | put | 34,427 | 67,300 | +32,873 |
| QQQ | 2026-10-23 | 710 | put | 3,608 | 34,702 | +31,094 |
| SPY | 2026-10-15 | 772 | call | 1,501 | 23,849 | +22,348 |
| IWM | 2026-11-06 | 267 | put | 336 | 21,513 | +21,177 |
| SPY | 2026-10-15 | 736 | put | 73 | 20,377 | +20,304 |
| SPY | 2026-10-15 | 738 | put | 37,914 | 55,842 | +17,928 |
| IWM | 2026-12-18 | 245 | put | 56,065 | 73,207 | +17,142 |
| QQQ | 2026-10-15 | 570 | put | 479 | 16,641 | +16,162 |
| SPY | 2026-12-31 | 700 | put | 8,604 | 23,363 | +14,759 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| IWM | 2026-10-16 | 285 | put | 50,294 | 6,454 | -43,840 |
| IWM | 2026-11-20 | 263 | put | 59,789 | 43,730 | -16,059 |
| IWM | 2026-10-16 | 284 | put | 15,047 | 70 | -14,977 |
| IWM | 2026-11-20 | 300 | put | 14,888 | 87 | -14,801 |
| IWM | 2026-10-23 | 277 | put | 26,686 | 12,354 | -14,332 |
| IWM | 2026-10-16 | 280 | put | 64,636 | 50,584 | -14,052 |
| SPY | 2026-10-23 | 755 | put | 20,496 | 9,473 | -11,023 |
| IWM | 2026-10-30 | 271 | put | 46,074 | 36,636 | -9,438 |
| IWM | 2026-10-16 | 271 | put | 55,280 | 45,946 | -9,334 |
| IWM | 2026-10-16 | 283 | put | 12,453 | 3,980 | -8,473 |

## Single stocks

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| ET | 2026-11-20 | 21 | call | 2,369 | 38,941 | +36,572 |
| C | 2026-11-20 | 110 | put | 9,210 | 43,318 | +34,108 |
| PFE | 2026-12-18 | 27 | put | 13,576 | 40,115 | +26,539 |
| NVDA | 2026-12-18 | 210 | put | 52,347 | 78,059 | +25,712 |
| NVDA | 2026-12-18 | 170 | put | 39,457 | 64,986 | +25,529 |
| INTC | 2026-10-30 | 115 | call | 4,177 | 26,427 | +22,250 |
| DASH | 2026-12-18 | 175 | call | 133 | 16,853 | +16,720 |
| SOFI | 2026-10-16 | 14.5 | call | 1,167 | 16,715 | +15,548 |
| RBLX | 2026-11-20 | 65 | call | 2,326 | 17,726 | +15,400 |
| ORCL | 2026-10-30 | 140 | call | 1,118 | 15,975 | +14,857 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| BAC | 2026-11-20 | 50 | put | 50,295 | 27,630 | -22,665 |
| AAPL | 2026-10-16 | 340 | call | 123,203 | 101,850 | -21,353 |
| NVDA | 2026-10-16 | 235 | call | 84,763 | 65,900 | -18,863 |
| DASH | 2026-11-20 | 170 | call | 16,741 | 84 | -16,657 |
| MDT | 2026-12-18 | 82.5 | put | 14,332 | 831 | -13,501 |
| ORCL | 2026-10-30 | 150 | call | 16,801 | 5,918 | -10,883 |
| C | 2026-10-16 | 120 | put | 29,494 | 19,269 | -10,225 |
| MSTR | 2026-10-16 | 165 | call | 46,206 | 36,027 | -10,179 |
| MDT | 2026-10-16 | 130 | put | 35,090 | 25,090 | -10,000 |
| BAC | 2026-10-16 | 55 | put | 16,943 | 8,006 | -8,937 |

## Calls vs puts

| Type | Added | Removed | Net |
|---|---|---|---|
| Calls | +4,486,976 | -1,387,649 | +3,099,327 |
| Puts | +4,835,679 | -1,433,736 | +3,401,943 |

## 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 % |
|---|---|---|---|---|---|---|---|
| TLT | 2026-11-30 | 85 | call | 2,670 | 173,239 | +170,569 | +6,388.4% |
| EWZ | 2026-10-23 | 41.5 | put | 1,262 | 52,996 | +51,734 | +4,099.4% |
| ET | 2026-11-20 | 21 | call | 2,369 | 38,941 | +36,572 | +1,543.8% |
| SPY | 2026-10-15 | 772 | call | 1,501 | 23,849 | +22,348 | +1,488.9% |
| SOFI | 2026-10-16 | 14.5 | call | 1,167 | 16,715 | +15,548 | +1,332.3% |
| ORCL | 2026-10-30 | 140 | call | 1,118 | 15,975 | +14,857 | +1,328.9% |
| EWZ | 2026-10-30 | 38 | put | 2,136 | 25,946 | +23,810 | +1,114.7% |
| SPY | 2026-10-23 | 748 | put | 1,157 | 13,805 | +12,648 | +1,093.2% |
| SPY | 2026-10-30 | 742 | put | 1,212 | 13,258 | +12,046 | +993.9% |
| QQQ | 2026-10-16 | 565 | put | 1,036 | 11,061 | +10,025 | +967.7% |
| MDT | 2026-12-18 | 90 | put | 1,088 | 11,096 | +10,008 | +919.9% |
| SPY | 2026-10-15 | 776 | call | 1,399 | 13,654 | +12,255 | +876% |
| QQQ | 2026-10-23 | 710 | put | 3,608 | 34,702 | +31,094 | +861.8% |
| XLF | 2028-12-15 | 56 | call | 2,125 | 20,125 | +18,000 | +847.1% |
| QQQ | 2026-10-15 | 715 | put | 1,004 | 9,134 | +8,130 | +809.8% |
| SPY | 2026-10-30 | 530 | put | 1,055 | 9,590 | +8,535 | +809% |
| SPX | 2026-10-15 | 7,575 | put | 2,068 | 18,397 | +16,329 | +789.6% |
| INTC | 2027-02-19 | 135 | call | 1,414 | 11,364 | +9,950 | +703.7% |
| SPY | 2026-10-15 | 775 | call | 1,845 | 14,320 | +12,475 | +676.2% |
| RBLX | 2026-11-20 | 65 | call | 2,326 | 17,726 | +15,400 | +662.1% |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | Change % |
|---|---|---|---|---|---|---|---|
| SPY | 2026-10-15 | 783 | put | 1,208 | 0 | -1,208 | -100% |
| TTWO | 2026-10-16 | 230 | put | 2,832 | 2 | -2,830 | -99.9% |
| SMR | 2028-01-21 | 30 | put | 1,123 | 1 | -1,122 | -99.9% |
| ABBV | 2026-10-16 | 267.5 | call | 1,960 | 4 | -1,956 | -99.8% |
| IWM | 2027-01-15 | 310 | put | 1,087 | 2 | -1,085 | -99.8% |
| HOOD | 2026-10-16 | 126 | put | 1,548 | 5 | -1,543 | -99.7% |
| ABBV | 2026-10-23 | 260 | call | 1,007 | 3 | -1,004 | -99.7% |
| DASH | 2026-11-20 | 170 | call | 16,741 | 84 | -16,657 | -99.5% |
| IWM | 2026-10-16 | 284 | put | 15,047 | 70 | -14,977 | -99.5% |
| IWM | 2026-11-20 | 300 | put | 14,888 | 87 | -14,801 | -99.4% |
| IWM | 2026-10-16 | 286 | put | 7,174 | 43 | -7,131 | -99.4% |
| QQQ | 2026-10-16 | 759 | put | 1,728 | 18 | -1,710 | -99% |
| EEM | 2026-10-16 | 68.5 | put | 5,980 | 103 | -5,877 | -98.3% |
| QQQ | 2026-10-16 | 754 | put | 1,586 | 48 | -1,538 | -97% |
| ARM | 2026-10-16 | 290 | put | 1,267 | 44 | -1,223 | -96.5% |
| SPY | 2026-10-16 | 783 | put | 1,291 | 59 | -1,232 | -95.4% |
| EEM | 2026-10-16 | 68 | put | 11,040 | 526 | -10,514 | -95.2% |
| INTC | 2026-10-16 | 120 | put | 6,025 | 317 | -5,708 | -94.7% |
| SPY | 2026-10-16 | 785 | put | 8,008 | 429 | -7,579 | -94.6% |
| MDT | 2026-12-18 | 82.5 | put | 14,332 | 831 | -13,501 | -94.2% |

## Top strikes, summed across expirations

| Symbol | Strike | Type | Change | Expirations summed |
|---|---|---|---|---|
| TLT | 85 | call | +172,459 | 28 |
| EWZ | 37 | put | +88,584 | 11 |
| TLT | 80 | call | +59,594 | 29 |
| IWM | 260 | put | +58,165 | 25 |
| GLD | 450 | call | -57,299 | 18 |
| EWZ | 41.5 | put | +52,443 | 5 |
| QQQ | 710 | put | +48,214 | 27 |
| EWZ | 38 | put | +47,495 | 12 |
| GLD | 485 | call | -47,431 | 5 |
| IWM | 285 | put | -42,613 | 25 |
| EWZ | 48 | call | +42,568 | 10 |
| IWM | 258 | put | +39,581 | 9 |
| IWM | 267 | put | +37,295 | 16 |
| QQQ | 740 | call | +37,158 | 29 |
| ET | 21 | call | +36,799 | 11 |
| XLU | 41 | call | +36,573 | 9 |
| NVDA | 210 | put | +35,910 | 24 |
| SPY | 780 | call | +35,880 | 31 |
| C | 110 | put | +35,765 | 13 |
| ORCL | 140 | call | +34,461 | 20 |

## Symbols by net change

Largest net increases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| SPY | +1,138,355 | +447,984 | +690,371 |
| SPX | +796,009 | +250,271 | +545,738 |
| QQQ | +745,650 | +322,090 | +423,560 |
| NVDA | +358,219 | +94,105 | +264,114 |
| EWZ | +319,186 | +30,691 | +288,495 |
| TLT | +301,493 | +279,093 | +22,400 |
| IWM | +257,498 | +153,737 | +103,761 |
| ORCL | +213,609 | +115,621 | +97,988 |
| SOFI | +148,596 | +113,299 | +35,297 |
| NBIS | +142,915 | +83,136 | +59,779 |

Largest net decreases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| GLD | -74,971 | -74,803 | -168 |
| EEM | -14,338 | +4,333 | -18,671 |
| MDT | -9,990 | +978 | -10,968 |
| ABBV | -7,858 | -10,649 | +2,791 |
| OKTA | -1,835 | -1,589 | -246 |
| ABT | -1,477 | -2,055 | +578 |
| MMM | -1,206 | -2,527 | +1,321 |
| ADBE | -862 | -280 | -582 |
| ROKU | -509 | -494 | -15 |
| XLRE | -432 | -325 | -107 |

## Archive

- https://squawkflow.com/oi-changes/2026-10-14.md (2026-10-14 vs 2026-10-13, 210 symbols)
- https://squawkflow.com/oi-changes/2026-10-13.md (2026-10-13 vs 2026-10-12, 210 symbols)
- https://squawkflow.com/oi-changes/2026-10-12.md (2026-10-12 vs 2026-10-09, 210 symbols)
- https://squawkflow.com/oi-changes/2026-10-09.md (2026-10-09 vs 2026-10-08, 168 symbols)
- 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)

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

Canonical: https://squawkflow.com/oi-changes/2026-10-14