Biggest options open interest changes
OI settled 2026-08-26 vs 2026-08-25
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.
1 of 212 archived US symbols compared. The other 211 lacked a consecutive settlement pair in the archive for these two sessions.
Across the compared symbols, 7,086 contracts changed open interest: +284,167 added, -189,890 removed, net +94,277 contracts.
Largest open interest increases (contracts)
| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | |
|---|---|---|---|---|---|---|---|
| SPX | 2026-10-09 | 6,400 | put | 0 | 10,091 | +10,091 | max pain |
| SPX | 2026-09-04 | 7,515 | put | 131 | 8,663 | +8,532 | max pain |
| SPX | 2026-10-09 | 6,300 | put | 0 | 8,402 | +8,402 | max pain |
| SPX | 2026-10-30 | 9,000 | call | 24,057 | 28,857 | +4,800 | max pain |
| SPX | 2026-10-30 | 8,560 | call | 41 | 4,814 | +4,773 | max pain |
| SPX | 2026-09-18 | 7,700 | call | 37,351 | 41,956 | +4,605 | max pain |
| SPX | 2026-12-18 | 8,000 | put | 128,548 | 133,015 | +4,467 | max pain |
| SPX | 2026-12-18 | 7,000 | call | 176,226 | 180,008 | +3,782 | max pain |
| SPX | 2026-12-18 | 8,000 | call | 148,256 | 151,805 | +3,549 | max pain |
| SPX | 2026-09-02 | 7,225 | put | 71 | 3,018 | +2,947 | max pain |
| SPX | 2026-12-18 | 7,000 | put | 184,402 | 187,081 | +2,679 | max pain |
| SPX | 2026-09-11 | 7,220 | put | 101 | 2,017 | +1,916 | max pain |
| SPX | 2027-03-19 | 8,000 | call | 36,972 | 38,680 | +1,708 | max pain |
| SPX | 2026-10-09 | 6,350 | put | 0 | 1,707 | +1,707 | max pain |
| SPX | 2026-09-18 | 7,850 | call | 14,717 | 16,404 | +1,687 | max pain |
| SPX | 2027-02-19 | 5,675 | put | 52 | 1,690 | +1,638 | max pain |
| SPX | 2026-09-09 | 7,810 | call | 61 | 1,653 | +1,592 | max pain |
| SPX | 2026-12-18 | 8,040 | call | 23 | 1,615 | +1,592 | max pain |
| SPX | 2026-09-02 | 7,475 | put | 558 | 2,116 | +1,558 | max pain |
| SPX | 2026-09-02 | 7,815 | call | 313 | 1,859 | +1,546 | max pain |
Largest open interest decreases (contracts)
| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | |
|---|---|---|---|---|---|---|---|
| SPX | 2026-08-27 | 6,600 | put | 5,618 | 0 | -5,618 | max pain |
| SPX | 2026-08-27 | 7,725 | call | 3,508 | 0 | -3,508 | max pain |
| SPX | 2026-08-27 | 7,570 | put | 3,315 | 0 | -3,315 | max pain |
| SPX | 2026-08-27 | 8,000 | call | 3,242 | 0 | -3,242 | max pain |
| SPX | 2026-08-27 | 7,275 | put | 3,047 | 0 | -3,047 | max pain |
| SPX | 2026-08-27 | 7,715 | put | 3,043 | 0 | -3,043 | max pain |
| SPX | 2026-08-27 | 8,100 | call | 2,575 | 0 | -2,575 | max pain |
| SPX | 2026-08-27 | 6,950 | put | 2,428 | 0 | -2,428 | max pain |
| SPX | 2026-08-27 | 7,735 | call | 2,399 | 0 | -2,399 | max pain |
| SPX | 2026-08-27 | 7,000 | put | 2,335 | 0 | -2,335 | max pain |
| SPX | 2026-08-27 | 7,450 | put | 2,315 | 0 | -2,315 | max pain |
| SPX | 2026-08-27 | 7,575 | put | 2,281 | 0 | -2,281 | max pain |
| SPX | 2026-08-27 | 7,700 | put | 2,261 | 0 | -2,261 | max pain |
| SPX | 2026-08-27 | 7,800 | call | 2,218 | 0 | -2,218 | max pain |
| SPX | 2026-08-27 | 7,725 | put | 2,156 | 0 | -2,156 | max pain |
| SPX | 2026-08-27 | 7,750 | call | 2,116 | 0 | -2,116 | max pain |
| SPX | 2026-08-27 | 7,735 | put | 2,075 | 0 | -2,075 | max pain |
| SPX | 2026-08-31 | 7,300 | put | 33,364 | 31,300 | -2,064 | max pain |
| SPX | 2026-08-27 | 7,160 | put | 2,004 | 0 | -2,004 | max pain |
| SPX | 2026-08-27 | 7,700 | call | 1,747 | 0 | -1,747 | max pain |
Index ETFs vs single stocks
Index ETFs (SPY, QQQ, IWM, DIA): increases
None in this pair.
Index ETFs: decreases
None in this pair.
Single stocks: increases
None in this pair.
Single stocks: decreases
None in this pair.
Calls vs puts
| Type | Added | Removed | Net |
|---|---|---|---|
| Calls | +108,836 | -69,013 | +39,823 |
| Puts | +175,331 | -120,877 | +54,454 |
Top call increases
| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | |
|---|---|---|---|---|---|---|---|
| SPX | 2026-10-30 | 9,000 | call | 24,057 | 28,857 | +4,800 | max pain |
| SPX | 2026-10-30 | 8,560 | call | 41 | 4,814 | +4,773 | max pain |
| SPX | 2026-09-18 | 7,700 | call | 37,351 | 41,956 | +4,605 | max pain |
| SPX | 2026-12-18 | 7,000 | call | 176,226 | 180,008 | +3,782 | max pain |
| SPX | 2026-12-18 | 8,000 | call | 148,256 | 151,805 | +3,549 | max pain |
Top put increases
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 % | |
|---|---|---|---|---|---|---|---|---|
| SPX | 2026-09-01 | 7,875 | call | 1,713 | 3,052 | +1,339 | +78.2% | max pain |
| SPX | 2026-08-28 | 7,825 | call | 1,774 | 3,105 | +1,331 | +75% | max pain |
| SPX | 2026-12-18 | 6,025 | put | 1,901 | 3,201 | +1,300 | +68.4% | max pain |
| SPX | 2026-08-28 | 7,490 | put | 1,270 | 2,085 | +815 | +64.2% | max pain |
| SPX | 2027-09-17 | 8,000 | call | 1,330 | 2,012 | +682 | +51.3% | max pain |
| SPX | 2026-09-04 | 7,725 | put | 1,239 | 1,841 | +602 | +48.6% | max pain |
| SPX | 2026-10-16 | 7,730 | call | 1,317 | 1,956 | +639 | +48.5% | max pain |
| SPX | 2026-09-04 | 7,200 | put | 3,180 | 4,641 | +1,461 | +45.9% | max pain |
| SPX | 2026-08-28 | 7,780 | call | 1,642 | 2,373 | +731 | +44.5% | max pain |
| SPX | 2026-09-18 | 7,270 | put | 1,286 | 1,841 | +555 | +43.2% | max pain |
| SPX | 2027-08-20 | 7,650 | call | 1,088 | 1,551 | +463 | +42.6% | max pain |
| SPX | 2027-09-17 | 8,000 | put | 1,143 | 1,606 | +463 | +40.5% | max pain |
| SPX | 2026-09-16 | 7,650 | put | 1,190 | 1,645 | +455 | +38.2% | max pain |
| SPX | 2026-08-28 | 7,640 | put | 1,681 | 2,192 | +511 | +30.4% | max pain |
| SPX | 2026-08-28 | 7,540 | put | 1,674 | 2,173 | +499 | +29.8% | max pain |
| SPX | 2026-11-20 | 3,400 | put | 2,844 | 3,675 | +831 | +29.2% | max pain |
| SPX | 2026-08-28 | 7,090 | put | 3,069 | 3,954 | +885 | +28.8% | max pain |
| SPX | 2026-08-28 | 7,575 | put | 1,112 | 1,424 | +312 | +28.1% | max pain |
| SPX | 2027-01-15 | 8,200 | call | 3,603 | 4,608 | +1,005 | +27.9% | max pain |
| SPX | 2026-08-28 | 7,580 | put | 3,073 | 3,910 | +837 | +27.2% | max pain |
Decreases
| Symbol | Expiry | Strike | Type | Prior OI | Current OI | Change | Change % | |
|---|---|---|---|---|---|---|---|---|
| SPX | 2026-08-27 | 6,600 | put | 5,618 | 0 | -5,618 | -100% | max pain |
| SPX | 2026-08-27 | 7,725 | call | 3,508 | 0 | -3,508 | -100% | max pain |
| SPX | 2026-08-27 | 7,570 | put | 3,315 | 0 | -3,315 | -100% | max pain |
| SPX | 2026-08-27 | 8,000 | call | 3,242 | 0 | -3,242 | -100% | max pain |
| SPX | 2026-08-27 | 7,275 | put | 3,047 | 0 | -3,047 | -100% | max pain |
| SPX | 2026-08-27 | 7,715 | put | 3,043 | 0 | -3,043 | -100% | max pain |
| SPX | 2026-08-27 | 8,100 | call | 2,575 | 0 | -2,575 | -100% | max pain |
| SPX | 2026-08-27 | 6,950 | put | 2,428 | 0 | -2,428 | -100% | max pain |
| SPX | 2026-08-27 | 7,735 | call | 2,399 | 0 | -2,399 | -100% | max pain |
| SPX | 2026-08-27 | 7,000 | put | 2,335 | 0 | -2,335 | -100% | max pain |
| SPX | 2026-08-27 | 7,450 | put | 2,315 | 0 | -2,315 | -100% | max pain |
| SPX | 2026-08-27 | 7,575 | put | 2,281 | 0 | -2,281 | -100% | max pain |
| SPX | 2026-08-27 | 7,700 | put | 2,261 | 0 | -2,261 | -100% | max pain |
| SPX | 2026-08-27 | 7,800 | call | 2,218 | 0 | -2,218 | -100% | max pain |
| SPX | 2026-08-27 | 7,725 | put | 2,156 | 0 | -2,156 | -100% | max pain |
| SPX | 2026-08-27 | 7,750 | call | 2,116 | 0 | -2,116 | -100% | max pain |
| SPX | 2026-08-27 | 7,735 | put | 2,075 | 0 | -2,075 | -100% | max pain |
| SPX | 2026-08-27 | 7,160 | put | 2,004 | 0 | -2,004 | -100% | max pain |
| SPX | 2026-08-27 | 7,700 | call | 1,747 | 0 | -1,747 | -100% | max pain |
| SPX | 2026-08-27 | 7,600 | put | 1,747 | 0 | -1,747 | -100% | max pain |
Top strikes, summed across expirations
| Symbol | Strike | Type | Change | Expirations summed |
|---|---|---|---|---|
| SPX | 6,400 | put | +11,010 | 26 |
| SPX | 7,515 | put | +8,477 | 14 |
| SPX | 6,300 | put | +7,726 | 30 |
| SPX | 9,000 | call | +5,722 | 13 |
| SPX | 7,700 | call | +5,694 | 41 |
| SPX | 6,600 | put | -5,331 | 36 |
| SPX | 8,000 | put | +5,098 | 18 |
| SPX | 8,560 | call | +4,773 | 1 |
| SPX | 7,000 | put | +3,677 | 49 |
| SPX | 6,000 | put | +3,644 | 37 |
| SPX | 7,000 | call | +3,561 | 20 |
| SPX | 7,725 | call | -3,073 | 31 |
| SPX | 7,715 | put | -3,054 | 13 |
| SPX | 7,570 | put | -3,041 | 19 |
| SPX | 7,200 | put | +2,981 | 41 |
| SPX | 7,225 | put | +2,938 | 29 |
| SPX | 7,275 | put | -2,835 | 31 |
| SPX | 8,000 | call | +2,781 | 48 |
| SPX | 6,100 | put | +2,621 | 23 |
| SPX | 7,600 | put | +2,508 | 44 |
Symbols by net change
Largest net increases
| Symbol | Kind | Net change | Calls | Puts |
|---|---|---|---|---|
| SPX | Index | +94,277 | +39,823 | +54,454 |
Largest net decreases
None in this pair.
Archive
- 2026-10-08 vs 2026-10-07, 158 symbols compared
- 2026-10-07 vs 2026-10-06, 135 symbols compared
- 2026-10-06 vs 2026-10-05, 136 symbols compared
- 2026-10-05 vs 2026-10-02, 155 symbols compared
- 2026-10-02 vs 2026-10-01, 148 symbols compared
- 2026-10-01 vs 2026-09-30, 156 symbols compared
- 2026-09-30 vs 2026-09-29, 148 symbols compared
- 2026-09-29 vs 2026-09-28, 150 symbols compared
- 2026-09-28 vs 2026-09-25, 150 symbols compared
- 2026-09-25 vs 2026-09-24, 135 symbols compared
Related
- SPX open interest change by strike
- Max pain by ticker
- Unusual options activity today, dated snapshots with the next settlement's open interest as a follow-up
- Machine-readable version of the latest pair