Overnight open interest change
Settlement dates 2026-10-21 and 2026-10-22; it updates once per trading day, after the next open interest settlement is archived, next after 5:30 a.m. PT on Monday, Oct 26, 2026. This is the difference in exchange-reported open interest between two daily settlements. It is not volume and not order flow. Each row is one strike and expiration, not a trade.
Computed from the Oct 22 settlement. Next update after the Oct 23 settlement, after 5:30 a.m. PT (8:30 a.m. ET) on Monday, Oct 26, 2026.
Open interest change between two daily settlements. Not volume, not order flow, not advice. Machine-readable version.
SPX from 2026-10-21 to 2026-10-22
Largest builds
| Strike | Expiry | Type | Change |
|---|---|---|---|
| 6,300 | 11/06 | put | +25,104 |
| 7,000 | 12/18 | put | +25,062 |
| 6,800 | 11/06 | put | +25,021 |
| 7,000 | 12/18 | call | +22,564 |
| 8,000 | 12/17 | call | +11,119 |
Largest drops
| Strike | Expiry | Type | Change |
|---|---|---|---|
| 7,750 | 10/30 | put | -16,864 |
| 7,650 | 10/30 | put | -13,630 |
| 7,750 | 10/23 | put | -3,651 |
| 7,900 | 11/20 | call | -3,219 |
| 6,300 | 11/20 | put | -2,676 |
Net change across the chain: calls +235,761 contracts, puts +432,715 contracts.
SPX open interest change by strike
Calls Putsright of zero is an increase, left a decrease
SPX open interest change by strike, summed over every expiry, settlement 2026-10-21 to 2026-10-22, across the 295 strikes within 10% of the quote: largest call increase at the 7,000 strike, +40,330 contracts; largest call decrease at the 7,900 strike, -1,928 contracts; largest put increase at the 7,000 strike, +42,187 contracts; largest put decrease at the 7,750 strike, -19,588 contracts.
Tap or hover a strike for its call and put change.
- 8,3008,300: calls -1,638 contracts, puts -109 contracts
- 8,2758,275: calls -312 contracts, puts -34 contracts
- 8,1008,100: calls -878 contracts, puts +25 contracts
- 8,0808,080: calls -368 contracts, puts +1 contracts
- 8,0108,010: calls -391 contracts, puts +5 contracts
- 8,0008,000: calls +25,926 contracts, puts +17,032 contracts
- 7,9007,900: calls -1,928 contracts, puts +774 contracts
- 7,8507,850: calls +5,726 contracts, puts +272 contracts
- 7,8057,805: calls +1,579 contracts, puts -219 contracts
- 7,8007,800: calls +4,005 contracts, puts +829 contracts
- 7,7757,775: calls +1,621 contracts, puts -263 contracts
- 7,7607,760: calls +3,745 contracts, puts -258 contracts
- 7,7557,755: calls +4,911 contracts, puts +93 contracts
- 7,7507,750: calls +9,083 contracts, puts -19,588 contracts
- 7,7257,725: calls +5,315 contracts, puts +1,954 contracts
- 7,7007,700: calls +9,332 contracts, puts +2,616 contracts
- 7,6857,685: calls +3,667 contracts, puts +2,639 contracts
- 7,6757,675: calls +5,010 contracts, puts +1,128 contracts
- 7,6507,650: calls +4,847 contracts, puts -11,299 contracts
- 7,6407,640: calls +670 contracts, puts +4,439 contracts
- 7,6007,600: calls +1,783 contracts, puts +4,642 contracts
- 7,5507,550: calls -63 contracts, puts +6,321 contracts
- 7,5207,520: calls +17 contracts, puts +5,746 contracts
- 7,5007,500: calls +682 contracts, puts +5,654 contracts
- 7,4857,485: calls 0 contracts, puts +6,628 contracts
- 7,4757,475: calls +4 contracts, puts +5,036 contracts
- 7,4607,460: calls +41 contracts, puts +4,694 contracts
- 7,4507,450: calls -246 contracts, puts +4,672 contracts
- 7,4207,420: calls +34 contracts, puts +5,601 contracts
- 7,4007,400: calls +80 contracts, puts +9,504 contracts
- 7,3857,385: no calls listed, puts +5,737 contracts
- 7,3757,375: calls +28 contracts, puts +6,827 contracts
- 7,3507,350: calls +79 contracts, puts +11,877 contracts
- 7,3407,340: calls +2 contracts, puts +6,005 contracts
- 7,3007,300: calls -179 contracts, puts +5,497 contracts
- 7,2757,275: calls +9 contracts, puts -435 contracts
- 7,2007,200: calls +107 contracts, puts +10,333 contracts
- 7,1007,100: calls +8 contracts, puts +7,936 contracts
- 7,0007,000: calls +40,330 contracts, puts +42,187 contracts
- 6,9006,900: calls +452 contracts, puts +4,815 contracts
SPX contracts with the largest change
Open interest change, not trades; it does not say which side opened or closed. Contracts, not dollars. Settlement 2026-10-21 to 2026-10-22. Sort by any column.
The 50 largest increases
50 of 50 contracts
| DTE at settle | Settled | Links | |||||||
|---|---|---|---|---|---|---|---|---|---|
| SPX | Put | +25,104 | 6,300 | 2026-11-06 | 15 | 1,248 | 26,352 | max pain | |
| SPX | Put | +25,062 | 7,000 | 2026-12-18 | 57 | 376,511 | 401,573 | max pain | |
| SPX | Put | +25,021 | 6,800 | 2026-11-06 | 15 | 4,353 | 29,374 | max pain | |
| SPX | Call | +22,564 | 7,000 | 2026-12-18 | 57 | 358,570 | 381,134 | max pain | |
| SPX | Call | +11,119 | 8,000 | 2027-12-17 | 421 | 116,457 | 127,576 | max pain | |
| SPX | Call | +10,572 | 7,000 | 2027-12-17 | 421 | 124,366 | 134,938 | max pain | |
| SPX | Put | +9,904 | 7,000 | 2027-12-17 | 421 | 130,911 | 140,815 | max pain | |
| SPX | Put | +8,679 | 8,000 | 2027-12-17 | 421 | 109,830 | 118,509 | max pain | |
| SPX | Call | +6,484 | 8,525 | 2026-12-18 | 57 | 7,397 | 13,881 | max pain | |
| SPX | Put | +5,319 | 7,485 | 2026-10-23 | 1 | 472 | 5,791 | max pain | |
| SPX | Put | +5,302 | 4,400 | 2026-10-30 | 8 | 1,601 | 6,903 | max pain | |
| SPX | Put | +5,064 | 6,100 | 2026-12-11 | 50 | 0 | 5,064 | max pain | |
| SPX | Put | +4,700 | 7,375 | 2026-10-23 | 1 | 1,451 | 6,151 | max pain | |
| SPX | Put | +4,416 | 8,000 | 2027-09-17 | 330 | 25,877 | 30,293 | max pain | |
| SPX | Call | +4,412 | 8,000 | 2027-09-17 | 330 | 25,827 | 30,239 | max pain | |
| SPX | Call | +4,353 | 7,000 | 2027-09-17 | 330 | 25,103 | 29,456 | max pain | |
| SPX | Put | +4,207 | 7,385 | 2026-10-23 | 1 | 465 | 4,672 | max pain | |
| SPX | Put | +4,106 | 7,000 | 2027-09-17 | 330 | 28,580 | 32,686 | max pain | |
| SPX | Put | +4,005 | 7,460 | 2026-10-23 | 1 | 1,150 | 5,155 | max pain | |
| SPX | Put | +4,000 | 7,225 | 2026-10-23 | 1 | 499 | 4,499 | max pain | |
| SPX | Put | +3,987 | 7,350 | 2026-10-23 | 1 | 2,755 | 6,742 | max pain | |
| SPX | Put | +3,982 | 7,520 | 2026-10-27 | 5 | 187 | 4,169 | max pain | |
| SPX | Call | +3,950 | 7,755 | 2026-10-23 | 1 | 842 | 4,792 | max pain | |
| SPX | Call | +3,649 | 7,725 | 2026-10-23 | 1 | 1,287 | 4,936 | max pain | |
| SPX | Put | +3,442 | 7,440 | 2026-10-23 | 1 | 912 | 4,354 | max pain | |
| SPX | Put | +3,415 | 7,340 | 2026-10-23 | 1 | 711 | 4,126 | max pain | |
| SPX | Put | +3,342 | 7,450 | 2026-10-23 | 1 | 7,908 | 11,250 | max pain | |
| SPX | Put | +3,281 | 7,475 | 2026-10-23 | 1 | 3,639 | 6,920 | max pain | |
| SPX | Put | +3,269 | 7,350 | 2027-03-19 | 148 | 7,984 | 11,253 | max pain | |
| SPX | Put | +3,170 | 7,200 | 2026-10-27 | 5 | 3,290 | 6,460 | max pain | |
| SPX | Put | +3,035 | 7,420 | 2026-10-27 | 5 | 130 | 3,165 | max pain | |
| SPX | Call | +2,996 | 8,000 | 2027-01-15 | 85 | 119,629 | 122,625 | max pain | |
| SPX | Put | +2,962 | 6,300 | 2026-11-05 | 14 | 200 | 3,162 | max pain | |
| SPX | Put | +2,950 | 8,000 | 2027-01-15 | 85 | 117,871 | 120,821 | max pain | |
| SPX | Put | +2,943 | 7,360 | 2026-10-23 | 1 | 517 | 3,460 | max pain | |
| SPX | Call | +2,924 | 7,765 | 2026-10-23 | 1 | 939 | 3,863 | max pain | |
| SPX | Call | +2,918 | 7,700 | 2026-10-23 | 1 | 2,190 | 5,108 | max pain | |
| SPX | Put | +2,884 | 7,500 | 2026-10-23 | 1 | 7,783 | 10,667 | max pain | |
| SPX | Call | +2,709 | 7,750 | 2026-10-23 | 1 | 5,199 | 7,908 | max pain | |
| SPX | Put | +2,603 | 7,480 | 2026-10-23 | 1 | 1,203 | 3,806 | max pain | |
| SPX | Call | +2,559 | 7,760 | 2026-10-23 | 1 | 1,847 | 4,406 | max pain | |
| SPX | Put | +2,533 | 6,200 | 2026-11-20 | 29 | 9,207 | 11,740 | max pain | |
| SPX | Put | +2,488 | 7,550 | 2026-10-23 | 1 | 4,703 | 7,191 | max pain | |
| SPX | Call | +2,470 | 7,000 | 2027-01-15 | 85 | 135,693 | 138,163 | max pain | |
| SPX | Put | +2,419 | 7,380 | 2026-10-23 | 1 | 923 | 3,342 | max pain | |
| SPX | Call | +2,411 | 8,000 | 2026-11-20 | 29 | 108,618 | 111,029 | max pain | |
| SPX | Call | +2,356 | 9,000 | 2026-12-18 | 57 | 53,159 | 55,515 | max pain | |
| SPX | Call | +2,349 | 7,740 | 2026-10-23 | 1 | 856 | 3,205 | max pain | |
| SPX | Call | +2,339 | 7,700 | 2026-11-20 | 29 | 21,155 | 23,494 | max pain | |
| SPX | Put | +2,315 | 7,200 | 2026-10-26 | 4 | 5,885 | 8,200 | max pain |
The 50 largest decreases
50 of 50 contracts
| DTE at settle | Settled | Links | |||||||
|---|---|---|---|---|---|---|---|---|---|
| SPX | Put | -16,864 | 7,750 | 2026-10-30 | 8 | 26,933 | 10,069 | max pain | |
| SPX | Put | -13,630 | 7,650 | 2026-10-30 | 8 | 30,147 | 16,517 | max pain | |
| SPX | Put | -3,651 | 7,750 | 2026-10-23 | 1 | 9,312 | 5,661 | max pain | |
| SPX | Call | -3,219 | 7,900 | 2026-11-20 | 29 | 26,162 | 22,943 | max pain | |
| SPX | Put | -2,676 | 6,300 | 2026-11-20 | 29 | 28,655 | 25,979 | max pain | |
| SPX | Put | -2,344 | 6,700 | 2026-11-20 | 29 | 17,145 | 14,801 | max pain | |
| SPX | Put | -2,198 | 7,650 | 2026-10-23 | 1 | 9,099 | 6,901 | max pain | |
| SPX | Call | -1,627 | 8,300 | 2026-11-20 | 29 | 17,609 | 15,982 | max pain | |
| SPX | Call | -1,581 | 8,400 | 2026-11-20 | 29 | 14,676 | 13,095 | max pain | |
| SPX | Put | -1,574 | 5,925 | 2027-02-19 | 120 | 4,929 | 3,355 | max pain | |
| SPX | Put | -1,435 | 7,700 | 2026-12-18 | 57 | 90,753 | 89,318 | max pain | |
| SPX | Put | -1,260 | 6,750 | 2026-11-20 | 29 | 10,318 | 9,058 | max pain | |
| SPX | Call | -1,243 | 8,100 | 2026-11-20 | 29 | 18,909 | 17,666 | max pain | |
| SPX | Put | -1,189 | 6,050 | 2026-12-18 | 57 | 11,035 | 9,846 | max pain | |
| SPX | Put | -1,057 | 7,600 | 2026-11-20 | 29 | 23,534 | 22,477 | max pain | |
| SPX | Call | -1,057 | 7,900 | 2026-12-18 | 57 | 31,281 | 30,224 | max pain | |
| SPX | Put | -989 | 5,950 | 2026-11-20 | 29 | 8,364 | 7,375 | max pain | |
| SPX | Call | -954 | 7,700 | 2026-12-18 | 57 | 90,539 | 89,585 | max pain | |
| SPX | Put | -938 | 6,800 | 2026-10-30 | 8 | 9,427 | 8,489 | max pain | |
| SPX | Put | -887 | 3,000 | 2026-11-20 | 29 | 12,395 | 11,508 | max pain | |
| SPX | Put | -877 | 7,300 | 2026-11-20 | 29 | 20,106 | 19,229 | max pain | |
| SPX | Put | -861 | 5,000 | 2026-12-18 | 57 | 122,799 | 121,938 | max pain | |
| SPX | Put | -829 | 7,500 | 2026-11-20 | 29 | 42,713 | 41,884 | max pain | |
| SPX | Put | -826 | 7,450 | 2026-11-13 | 22 | 1,865 | 1,039 | max pain | |
| SPX | Put | -803 | 6,625 | 2027-02-19 | 120 | 2,888 | 2,085 | max pain | |
| SPX | Put | -765 | 6,100 | 2026-12-04 | 43 | 5,136 | 4,371 | max pain | |
| SPX | Put | -741 | 7,000 | 2026-11-30 | 39 | 11,263 | 10,522 | max pain | |
| SPX | Put | -689 | 7,500 | 2027-01-15 | 85 | 17,245 | 16,556 | max pain | |
| SPX | Put | -671 | 7,275 | 2026-11-20 | 29 | 3,606 | 2,935 | max pain | |
| SPX | Put | -667 | 7,700 | 2026-10-23 | 1 | 7,233 | 6,566 | max pain | |
| SPX | Call | -621 | 8,400 | 2026-12-18 | 57 | 28,696 | 28,075 | max pain | |
| SPX | Put | -613 | 7,050 | 2026-11-11 | 20 | 991 | 378 | max pain | |
| SPX | Put | -570 | 6,800 | 2027-01-15 | 85 | 14,376 | 13,806 | max pain | |
| SPX | Put | -565 | 7,000 | 2026-10-30 | 8 | 13,855 | 13,290 | max pain | |
| SPX | Put | -548 | 7,550 | 2027-01-15 | 85 | 17,189 | 16,641 | max pain | |
| SPX | Call | -528 | 9,000 | 2027-09-17 | 330 | 6,780 | 6,252 | max pain | |
| SPX | Call | -500 | 10,200 | 2027-12-17 | 421 | 1,922 | 1,422 | max pain | |
| SPX | Put | -492 | 6,800 | 2026-10-29 | 7 | 1,064 | 572 | max pain | |
| SPX | Put | -490 | 8,000 | 2027-06-17 | 238 | 58,517 | 58,027 | max pain | |
| SPX | Put | -481 | 6,600 | 2026-11-20 | 29 | 21,547 | 21,066 | max pain | |
| SPX | Put | -477 | 7,175 | 2026-10-29 | 7 | 3,029 | 2,552 | max pain | |
| SPX | Put | -473 | 7,000 | 2027-03-19 | 148 | 163,235 | 162,762 | max pain | |
| SPX | Put | -460 | 6,400 | 2026-12-18 | 57 | 27,077 | 26,617 | max pain | |
| SPX | Put | -457 | 6,725 | 2026-10-29 | 7 | 695 | 238 | max pain | |
| SPX | Put | -443 | 6,650 | 2026-10-29 | 7 | 725 | 282 | max pain | |
| SPX | Put | -442 | 7,050 | 2026-10-29 | 7 | 1,621 | 1,179 | max pain | |
| SPX | Call | -436 | 9,800 | 2027-09-17 | 330 | 3,354 | 2,918 | max pain | |
| SPX | Call | -436 | 8,550 | 2026-12-18 | 57 | 16,579 | 16,143 | max pain | |
| SPX | Call | -435 | 7,850 | 2026-10-23 | 1 | 6,683 | 6,248 | max pain | |
| SPX | Call | -430 | 8,010 | 2026-12-18 | 57 | 1,708 | 1,278 | max pain |
DTE at settle counts calendar days from the settlement date, not from today. Up to 50 contracts per table, from every SPX series in both settlements.
The table above is SPX by strike. For the largest open interest changes across the 200+ symbols we archive, at the latest settlement: See the biggest open interest changes →
Other symbols with two consecutive settlements
- SPY: 2026-10-21 to 2026-10-22, largest absolute strike change 82,662 contracts (SPY max pain)
- NVDA: 2026-10-21 to 2026-10-22, largest absolute strike change 42,030 contracts (NVDA max pain)
- QQQ: 2026-10-21 to 2026-10-22, largest absolute strike change 37,972 contracts (QQQ max pain)
- PLTR: 2026-10-21 to 2026-10-22, largest absolute strike change 24,998 contracts (PLTR max pain)
- XLU: 2026-10-21 to 2026-10-22, largest absolute strike change 23,227 contracts
- TLT: 2026-10-21 to 2026-10-22, largest absolute strike change 22,121 contracts (TLT max pain)
- XLP: 2026-10-21 to 2026-10-22, largest absolute strike change 21,128 contracts
- XLY: 2026-10-21 to 2026-10-22, largest absolute strike change 20,250 contracts
- ORCL: 2026-10-21 to 2026-10-22, largest absolute strike change 17,985 contracts (ORCL max pain)
- GOOGL: 2026-10-21 to 2026-10-22, largest absolute strike change 17,603 contracts (GOOGL max pain)
- KWEB: 2026-10-21 to 2026-10-22, largest absolute strike change 17,051 contracts (KWEB max pain)
- SPCX: 2026-10-21 to 2026-10-22, largest absolute strike change 16,771 contracts (SPCX max pain)
- SLV: 2026-10-21 to 2026-10-22, largest absolute strike change 15,658 contracts (SLV max pain)
- IWM: 2026-10-21 to 2026-10-22, largest absolute strike change 15,172 contracts (IWM max pain)
- GE: 2026-10-21 to 2026-10-22, largest absolute strike change 14,627 contracts (GE max pain)
- GLD: 2026-10-21 to 2026-10-22, largest absolute strike change 14,159 contracts (GLD max pain)
- XLE: 2026-10-21 to 2026-10-22, largest absolute strike change 13,706 contracts (XLE max pain)
- XLF: 2026-10-21 to 2026-10-22, largest absolute strike change 13,363 contracts (XLF max pain)
- EEM: 2026-10-21 to 2026-10-22, largest absolute strike change 13,249 contracts (EEM max pain)
- XLI: 2026-10-21 to 2026-10-22, largest absolute strike change 12,371 contracts
- FXI: 2026-10-21 to 2026-10-22, largest absolute strike change 12,305 contracts (FXI max pain)
- META: 2026-10-21 to 2026-10-22, largest absolute strike change 12,245 contracts (META max pain)
- INTC: 2026-10-21 to 2026-10-22, largest absolute strike change 11,473 contracts (INTC max pain)
- JNJ: 2026-10-21 to 2026-10-22, largest absolute strike change 10,985 contracts (JNJ max pain)
- BMY: 2026-10-21 to 2026-10-22, largest absolute strike change 10,287 contracts (BMY max pain)
- NU: 2026-10-21 to 2026-10-22, largest absolute strike change 9,717 contracts (NU max pain)
- AAPL: 2026-10-21 to 2026-10-22, largest absolute strike change 9,616 contracts (AAPL max pain)
- MU: 2026-10-21 to 2026-10-22, largest absolute strike change 9,590 contracts (MU max pain)
- DVN: 2026-10-21 to 2026-10-22, largest absolute strike change 9,177 contracts (DVN max pain)
- AMZN: 2026-10-21 to 2026-10-22, largest absolute strike change 8,940 contracts (AMZN max pain)
- MSTR: 2026-10-21 to 2026-10-22, largest absolute strike change 8,484 contracts (MSTR max pain)
- GPN: 2026-10-21 to 2026-10-22, largest absolute strike change 8,336 contracts (GPN max pain)
- UBER: 2026-10-21 to 2026-10-22, largest absolute strike change 8,178 contracts (UBER max pain)
- RIVN: 2026-10-21 to 2026-10-22, largest absolute strike change 7,918 contracts (RIVN max pain)
- NIO: 2026-10-21 to 2026-10-22, largest absolute strike change 7,639 contracts (NIO max pain)
- NFLX: 2026-10-21 to 2026-10-22, largest absolute strike change 7,462 contracts (NFLX max pain)
- TSLA: 2026-10-21 to 2026-10-22, largest absolute strike change 7,079 contracts (TSLA max pain)
- NKE: 2026-10-21 to 2026-10-22, largest absolute strike change 6,824 contracts (NKE max pain)
- GME: 2026-10-21 to 2026-10-22, largest absolute strike change 6,576 contracts (GME max pain)
- NBIS: 2026-10-21 to 2026-10-22, largest absolute strike change 6,399 contracts (NBIS max pain)
- SOFI: 2026-10-21 to 2026-10-22, largest absolute strike change 6,379 contracts (SOFI max pain)
- AVGO: 2026-10-21 to 2026-10-22, largest absolute strike change 6,343 contracts (AVGO max pain)
- LCID: 2026-10-21 to 2026-10-22, largest absolute strike change 6,115 contracts (LCID max pain)
- OPEN: 2026-10-21 to 2026-10-22, largest absolute strike change 5,634 contracts (OPEN max pain)
- PG: 2026-10-21 to 2026-10-22, largest absolute strike change 5,527 contracts (PG max pain)
- EWY: 2026-10-21 to 2026-10-22, largest absolute strike change 5,409 contracts (EWY max pain)
- MSFT: 2026-10-21 to 2026-10-22, largest absolute strike change 5,292 contracts (MSFT max pain)
- UPS: 2026-10-21 to 2026-10-22, largest absolute strike change 4,856 contracts (UPS max pain)
- MRK: 2026-10-21 to 2026-10-22, largest absolute strike change 4,838 contracts (MRK max pain)
Copy for chat
SPX overnight open interest change, settlement 2026-10-21 to 2026-10-22 Largest strike changes: 6,300P 11-06 +25,104 | 7,000P 12-18 +25,062 | 6,800P 11-06 +25,021 Net change: calls +235,761, puts +432,715 Open interest change between two daily settlements. Not volume, not order flow, not advice. https://squawkflow.com/oi-change?utm_source=share-oi-change&utm_medium=copy&utm_campaign=oi-change
How to read this
- Is this real-time?
- No. Open interest is published once per session from the settled open interest archive. This page compares two completed settlement snapshots and is refreshed once per session before the open.
- Is a build bullish?
- An increase in open interest at a strike means more contracts are open there than at the prior settlement. It does not record which side initiated the change or why positions were added.
- Where does the data come from?
- Delayed exchange quotes, archived at settlement. Each row is one strike and expiration with the change in reported open interest between two settlement dates.

