# Biggest options open interest changes

OI settled 2026-09-16 vs 2026-09-15.

> 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.

125 of 212 archived US symbols compared. The other 87 lacked a consecutive settlement pair in the archive for these two sessions. 25 of those compared reported an identical book in both sessions.

Across the compared symbols: 59,799 contracts changed open interest, +5,645,515 added, -1,729,285 removed, net +3,916,230 contracts.

## Largest open interest increases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-09-25 | 730 | put | 35,915 | 129,515 | +93,600 |
| SPY | 2026-09-25 | 745 | put | 58,544 | 149,776 | +91,232 |
| SPX | 2026-10-30 | 6,150 | put | 152 | 56,288 | +56,136 |
| SPX | 2026-10-30 | 6,250 | put | 182 | 56,259 | +56,077 |
| GLD | 2026-12-18 | 485 | call | 3,261 | 58,956 | +55,695 |
| GLD | 2026-12-18 | 450 | call | 18,908 | 73,772 | +54,864 |
| GLD | 2027-01-15 | 485 | call | 13,306 | 67,747 | +54,441 |
| GLD | 2027-01-15 | 450 | call | 42,724 | 97,075 | +54,351 |
| IWM | 2026-10-16 | 270 | put | 41,072 | 76,112 | +35,040 |
| GLD | 2026-12-18 | 490 | call | 27,624 | 57,384 | +29,760 |
| SPX | 2026-12-18 | 7,000 | put | 259,695 | 285,700 | +26,005 |
| TLT | 2026-10-16 | 83 | call | 125,772 | 151,602 | +25,830 |
| QQQ | 2026-09-30 | 721 | call | 275 | 25,271 | +24,996 |
| SPY | 2026-09-25 | 780 | call | 6,455 | 30,707 | +24,252 |
| SPX | 2026-12-18 | 7,000 | call | 248,803 | 272,392 | +23,589 |
| SNAP | 2026-09-18 | 6.5 | call | 29,398 | 50,513 | +21,115 |
| IWM | 2026-10-16 | 273 | put | 18,228 | 38,375 | +20,147 |
| AAPL | 2026-09-18 | 205 | put | 9,283 | 28,696 | +19,413 |
| GOOGL | 2026-10-16 | 370 | call | 11,883 | 31,207 | +19,324 |
| CMG | 2026-10-30 | 28 | put | 4 | 19,022 | +19,018 |

## Largest open interest decreases (contracts)

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| GLD | 2026-09-18 | 430 | call | 137,592 | 70,126 | -67,466 |
| GLD | 2026-09-18 | 445 | call | 122,143 | 56,759 | -65,384 |
| TLT | 2026-09-18 | 83 | put | 73,076 | 16,826 | -56,250 |
| SPY | 2026-09-18 | 760 | put | 127,008 | 70,918 | -56,090 |
| GLD | 2026-09-18 | 415 | call | 142,713 | 99,558 | -43,155 |
| GLD | 2026-09-18 | 435 | call | 117,530 | 74,448 | -43,082 |
| SPY | 2026-09-18 | 750 | put | 113,782 | 74,311 | -39,471 |
| QQQ | 2026-09-18 | 700 | put | 115,000 | 90,849 | -24,151 |
| SPY | 2026-09-18 | 745 | put | 66,648 | 44,560 | -22,088 |
| XLF | 2026-09-18 | 55 | call | 111,504 | 91,495 | -20,009 |
| QQQ | 2026-09-18 | 685 | put | 61,768 | 41,866 | -19,902 |
| IWM | 2026-09-18 | 295 | put | 36,272 | 17,793 | -18,479 |
| CRM | 2026-09-18 | 200 | call | 17,043 | 162 | -16,881 |
| XLF | 2026-09-18 | 53 | call | 38,619 | 23,615 | -15,004 |
| SPY | 2026-09-18 | 730 | put | 79,972 | 65,142 | -14,830 |
| IWM | 2026-09-18 | 280 | put | 80,126 | 65,448 | -14,678 |
| XLE | 2027-01-15 | 45 | put | 69,850 | 55,847 | -14,003 |
| GLD | 2026-10-16 | 505 | call | 34,185 | 20,492 | -13,693 |
| SPY | 2026-09-18 | 670 | put | 62,007 | 48,494 | -13,513 |
| TLT | 2027-01-15 | 80 | put | 139,827 | 126,823 | -13,004 |

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

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-09-25 | 730 | put | 35,915 | 129,515 | +93,600 |
| SPY | 2026-09-25 | 745 | put | 58,544 | 149,776 | +91,232 |
| IWM | 2026-10-16 | 270 | put | 41,072 | 76,112 | +35,040 |
| QQQ | 2026-09-30 | 721 | call | 275 | 25,271 | +24,996 |
| SPY | 2026-09-25 | 780 | call | 6,455 | 30,707 | +24,252 |
| IWM | 2026-10-16 | 273 | put | 18,228 | 38,375 | +20,147 |
| IWM | 2026-11-20 | 250 | put | 23,152 | 39,385 | +16,233 |
| IWM | 2026-11-20 | 240 | put | 5,357 | 19,847 | +14,490 |
| IWM | 2026-09-18 | 272 | put | 9,410 | 23,682 | +14,272 |
| SPY | 2026-09-30 | 780 | call | 16,972 | 31,205 | +14,233 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SPY | 2026-09-18 | 760 | put | 127,008 | 70,918 | -56,090 |
| SPY | 2026-09-18 | 750 | put | 113,782 | 74,311 | -39,471 |
| QQQ | 2026-09-18 | 700 | put | 115,000 | 90,849 | -24,151 |
| SPY | 2026-09-18 | 745 | put | 66,648 | 44,560 | -22,088 |
| QQQ | 2026-09-18 | 685 | put | 61,768 | 41,866 | -19,902 |
| IWM | 2026-09-18 | 295 | put | 36,272 | 17,793 | -18,479 |
| SPY | 2026-09-18 | 730 | put | 79,972 | 65,142 | -14,830 |
| IWM | 2026-09-18 | 280 | put | 80,126 | 65,448 | -14,678 |
| SPY | 2026-09-18 | 670 | put | 62,007 | 48,494 | -13,513 |
| IWM | 2026-09-30 | 290 | put | 34,310 | 23,810 | -10,500 |

## Single stocks

Increases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| SNAP | 2026-09-18 | 6.5 | call | 29,398 | 50,513 | +21,115 |
| AAPL | 2026-09-18 | 205 | put | 9,283 | 28,696 | +19,413 |
| GOOGL | 2026-10-16 | 370 | call | 11,883 | 31,207 | +19,324 |
| CMG | 2026-10-30 | 28 | put | 4 | 19,022 | +19,018 |
| INTC | 2026-10-16 | 130 | call | 25,376 | 42,661 | +17,285 |
| TSLA | 2026-10-02 | 360 | call | 2,340 | 16,821 | +14,481 |
| INTC | 2026-10-16 | 120 | call | 11,321 | 24,537 | +13,216 |
| AAPL | 2026-09-18 | 195 | put | 10,357 | 20,910 | +10,553 |
| AAPL | 2027-01-15 | 360 | call | 15,058 | 25,157 | +10,099 |
| SNAP | 2026-09-18 | 5.5 | put | 7,037 | 16,804 | +9,767 |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change |
|---|---|---|---|---|---|---|
| CRM | 2026-09-18 | 200 | call | 17,043 | 162 | -16,881 |
| CRM | 2026-09-18 | 210 | call | 10,580 | 305 | -10,275 |
| TSLA | 2026-09-18 | 400 | put | 14,422 | 4,664 | -9,758 |
| CRM | 2026-09-18 | 175 | call | 8,575 | 20 | -8,555 |
| CRM | 2026-09-18 | 195 | call | 7,881 | 520 | -7,361 |
| CRM | 2026-09-18 | 220 | call | 7,537 | 429 | -7,108 |
| SCHW | 2026-09-18 | 108 | call | 12,573 | 6,638 | -5,935 |
| ADBE | 2026-09-18 | 280 | put | 6,114 | 194 | -5,920 |
| CRM | 2026-09-18 | 190 | call | 5,403 | 53 | -5,350 |
| HOOD | 2026-09-18 | 120 | call | 19,104 | 14,462 | -4,642 |

## Calls vs puts

| Type | Added | Removed | Net |
|---|---|---|---|
| Calls | +2,648,047 | -765,529 | +1,882,518 |
| Puts | +2,997,468 | -963,756 | +2,033,712 |

## 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 % |
|---|---|---|---|---|---|---|---|
| GLD | 2026-12-18 | 485 | call | 3,261 | 58,956 | +55,695 | +1,707.9% |
| SPY | 2026-09-18 | 666 | put | 1,256 | 15,269 | +14,013 | +1,115.7% |
| SPY | 2026-09-18 | 639 | put | 1,069 | 12,095 | +11,026 | +1,031.4% |
| QQQ | 2026-09-30 | 726 | call | 1,005 | 10,254 | +9,249 | +920.3% |
| XLF | 2026-09-18 | 55.5 | put | 1,138 | 11,605 | +10,467 | +919.8% |
| SPY | 2026-10-16 | 716 | put | 1,579 | 13,213 | +11,634 | +736.8% |
| SPX | 2026-09-17 | 7,350 | put | 1,040 | 8,433 | +7,393 | +710.9% |
| IWM | 2026-09-25 | 276 | put | 1,039 | 8,323 | +7,284 | +701.1% |
| TSLA | 2026-10-02 | 360 | call | 2,340 | 16,821 | +14,481 | +618.8% |
| SPY | 2026-09-17 | 730 | put | 2,289 | 15,595 | +13,306 | +581.3% |
| XLU | 2026-10-16 | 42 | call | 2,871 | 18,559 | +15,688 | +546.4% |
| SPY | 2026-09-17 | 755 | call | 1,158 | 6,902 | +5,744 | +496% |
| SPY | 2026-09-17 | 760 | put | 1,746 | 10,151 | +8,405 | +481.4% |
| QQQ | 2026-09-17 | 712 | call | 1,204 | 6,846 | +5,642 | +468.6% |
| QQQ | 2026-09-17 | 716 | call | 1,340 | 7,070 | +5,730 | +427.6% |
| SPY | 2026-09-17 | 743 | put | 1,301 | 6,742 | +5,441 | +418.2% |
| QQQ | 2026-09-30 | 710 | call | 2,156 | 11,045 | +8,889 | +412.3% |
| QQQ | 2026-09-17 | 709 | call | 1,051 | 5,378 | +4,327 | +411.7% |
| GLD | 2027-01-15 | 485 | call | 13,306 | 67,747 | +54,441 | +409.1% |
| QQQ | 2026-09-17 | 703 | put | 1,274 | 6,428 | +5,154 | +404.6% |

Decreases:

| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | Change % |
|---|---|---|---|---|---|---|---|
| CRM | 2026-09-18 | 175 | call | 8,575 | 20 | -8,555 | -99.8% |
| IWM | 2027-03-31 | 335 | put | 2,063 | 6 | -2,057 | -99.7% |
| CRM | 2026-09-18 | 200 | call | 17,043 | 162 | -16,881 | -99% |
| CRM | 2026-09-18 | 190 | call | 5,403 | 53 | -5,350 | -99% |
| AAPL | 2026-09-18 | 350 | put | 4,439 | 44 | -4,395 | -99% |
| CRM | 2026-09-18 | 150 | call | 2,154 | 39 | -2,115 | -98.2% |
| COIN | 2026-09-18 | 220 | put | 1,742 | 49 | -1,693 | -97.2% |
| CRM | 2026-09-18 | 210 | call | 10,580 | 305 | -10,275 | -97.1% |
| CRM | 2026-09-18 | 185 | call | 2,224 | 64 | -2,160 | -97.1% |
| ADBE | 2026-09-18 | 280 | put | 6,114 | 194 | -5,920 | -96.8% |
| CRM | 2026-09-18 | 170 | call | 1,191 | 41 | -1,150 | -96.6% |
| CRM | 2026-09-18 | 180 | call | 3,301 | 114 | -3,187 | -96.5% |
| DASH | 2026-09-18 | 220 | put | 1,154 | 47 | -1,107 | -95.9% |
| IWM | 2026-09-17 | 291 | put | 1,003 | 52 | -951 | -94.8% |
| CRM | 2026-09-18 | 220 | call | 7,537 | 429 | -7,108 | -94.3% |
| CRM | 2026-09-18 | 195 | call | 7,881 | 520 | -7,361 | -93.4% |
| IWM | 2026-09-18 | 294 | put | 5,188 | 604 | -4,584 | -88.4% |
| IWM | 2026-10-16 | 305 | put | 1,230 | 183 | -1,047 | -85.1% |
| IWM | 2026-09-18 | 297 | put | 3,466 | 605 | -2,861 | -82.5% |
| BKNG | 2026-10-16 | 208 | put | 1,458 | 255 | -1,203 | -82.5% |

## Top strikes, summed across expirations

| Symbol | Strike | Type | Change | Expirations summed |
|---|---|---|---|---|
| GLD | 485 | call | +110,309 | 15 |
| GLD | 450 | call | +109,609 | 24 |
| SPY | 730 | put | +107,621 | 25 |
| SPY | 745 | put | +81,219 | 27 |
| GLD | 430 | call | -66,666 | 22 |
| GLD | 445 | call | -65,214 | 16 |
| SPX | 7,000 | put | +63,314 | 47 |
| TLT | 83 | put | -62,604 | 20 |
| SPX | 6,250 | put | +56,515 | 18 |
| SPX | 6,150 | put | +56,478 | 14 |
| SPY | 760 | put | -51,334 | 29 |
| SPX | 7,000 | call | +51,332 | 20 |
| IWM | 270 | put | +45,433 | 24 |
| SPY | 780 | call | +44,710 | 28 |
| GLD | 415 | call | -41,715 | 26 |
| GLD | 435 | call | -41,684 | 15 |
| SPX | 8,000 | call | +32,985 | 47 |
| GLD | 490 | call | +30,290 | 13 |
| QQQ | 721 | call | +28,446 | 15 |
| SPX | 8,000 | put | +28,381 | 17 |

## Symbols by net change

Largest net increases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| SPX | +1,003,480 | +352,542 | +650,938 |
| SPY | +887,749 | +388,954 | +498,795 |
| QQQ | +513,120 | +224,946 | +288,174 |
| IWM | +269,189 | +111,170 | +158,019 |
| AAPL | +153,372 | +65,636 | +87,736 |
| TLT | +114,353 | +165,252 | -50,899 |
| GLD | +110,085 | +78,047 | +32,038 |
| INTC | +105,502 | +72,780 | +32,722 |
| TSLA | +97,649 | +65,397 | +32,252 |
| XLE | +78,117 | +34,211 | +43,906 |

Largest net decreases:

| Symbol | Net change | Calls | Puts |
|---|---|---|---|
| CRM | -64,743 | -67,679 | +2,936 |
| TTWO | -2,067 | +1,119 | -3,186 |
| XLY | -1,728 | +985 | -2,713 |
| XLP | -912 | +11 | -923 |
| LCID | -767 | +934 | -1,701 |
| DASH | -552 | +497 | -1,049 |
| SE | -503 | +343 | -846 |
| ABNB | -222 | +304 | -526 |
| XLC | -54 | -245 | +191 |
| CFG | -1 | -210 | +209 |

## 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/2026-09-16