Latest OI changes Previous session: 2026-10-12 Next session: 2026-10-14 Biggest options open interest changes OI settled 2026-10-13 vs 2026-10-12
Computed from the Oct 13 settlement.
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. 34 of those compared reported an identical book in both sessions.
Across the compared symbols, 98,377 contracts changed open interest: +7,362,567 added, -1,524,609 removed, net +5,837,958 contracts.
Largest open interest increases (contracts) Symbol Expiry Strike Type Prior OI Current OI Change WMT 2026-11-20 120 call 14,108 118,906 +104,798 max pain SPX 2026-11-27 6,500 put 44 60,817 +60,773 max pain SPX 2026-11-27 6,400 put 29 58,927 +58,898 max pain SPY 2026-10-14 736 put 2,464 51,580 +49,116 max pain CMG 2026-11-06 25 put 12 35,562 +35,550 max pain IWM 2026-11-20 263 put 25,075 59,789 +34,714 max pain INTC 2026-11-20 130 call 60,703 95,244 +34,541 max pain XLF 2026-10-23 53 put 2,023 34,357 +32,334 max pain IWM 2026-10-30 265 put 9,793 41,555 +31,762 max pain FXI 2027-01-15 28 put 10,375 41,278 +30,903 max pain SPY 2026-10-30 834 call 10,319 39,909 +29,590 max pain U 2026-10-30 47 call 414 29,869 +29,455 max pain IWM 2026-10-30 225 put 259 27,985 +27,726 max pain TLT 2026-10-16 80.5 call 5,666 33,194 +27,528 max pain SPY 2026-10-30 833 call 420 27,341 +26,921 max pain SPY 2026-10-14 738 put 517 27,082 +26,565 max pain IWM 2026-10-30 278 call 1,168 27,211 +26,043 max pain TLT 2026-10-16 79.5 call 6,979 33,003 +26,024 max pain XLE 2026-11-20 70 call 40,803 65,332 +24,529 max pain DIS 2026-10-23 106 put 66 23,229 +23,163 max pain
Largest open interest decreases (contracts) Symbol Expiry Strike Type Prior OI Current OI Change WMT 2026-11-20 115 call 122,019 57,355 -64,664 max pain U 2026-10-16 46 call 66,289 36,623 -29,666 max pain ARM 2026-11-20 320 call 22,904 2,623 -20,281 max pain EEM 2026-10-16 66 put 43,798 23,775 -20,023 max pain NU 2026-10-16 17 call 34,073 17,348 -16,725 max pain NU 2026-10-16 16 call 41,230 25,488 -15,742 max pain IWM 2026-10-16 280 put 80,310 64,636 -15,674 max pain EEM 2026-10-16 66 call 21,374 6,101 -15,273 max pain XLF 2026-12-18 60 call 37,685 22,557 -15,128 max pain XLF 2026-12-18 56 call 28,110 13,182 -14,928 max pain XLE 2026-10-16 67 call 22,894 8,064 -14,830 max pain TLT 2026-11-20 75 put 89,406 79,336 -10,070 max pain IWM 2026-10-16 285 call 58,890 49,741 -9,149 max pain IWM 2026-10-30 284 call 26,180 17,575 -8,605 max pain IWM 2026-10-16 271 put 63,601 55,280 -8,321 max pain SPX 2026-10-16 7,000 put 219,852 211,593 -8,259 max pain SPX 2026-10-16 8,000 call 206,920 199,089 -7,831 max pain SPX 2026-10-16 8,000 put 191,154 183,888 -7,266 max pain SPX 2026-10-16 7,000 call 193,825 186,565 -7,260 max pain MU 2026-12-18 1,200 call 16,585 10,173 -6,412 max pain
Index ETFs vs single stocks Index ETFs (SPY, QQQ, IWM, DIA): increases Symbol Expiry Strike Type Prior OI Current OI Change SPY 2026-10-14 736 put 2,464 51,580 +49,116 max pain IWM 2026-11-20 263 put 25,075 59,789 +34,714 max pain IWM 2026-10-30 265 put 9,793 41,555 +31,762 max pain SPY 2026-10-30 834 call 10,319 39,909 +29,590 max pain IWM 2026-10-30 225 put 259 27,985 +27,726 max pain SPY 2026-10-30 833 call 420 27,341 +26,921 max pain SPY 2026-10-14 738 put 517 27,082 +26,565 max pain IWM 2026-10-30 278 call 1,168 27,211 +26,043 max pain SPY 2026-10-16 773 put 5,755 26,545 +20,790 max pain SPY 2026-12-18 245 put 1,204 20,651 +19,447 max pain
Index ETFs: decreases Symbol Expiry Strike Type Prior OI Current OI Change IWM 2026-10-16 280 put 80,310 64,636 -15,674 max pain IWM 2026-10-16 285 call 58,890 49,741 -9,149 max pain IWM 2026-10-30 284 call 26,180 17,575 -8,605 max pain IWM 2026-10-16 271 put 63,601 55,280 -8,321 max pain SPY 2026-11-20 730 put 57,564 51,211 -6,353 max pain IWM 2026-11-20 265 put 115,371 109,284 -6,087 max pain IWM 2026-10-16 275 put 91,153 85,204 -5,949 max pain IWM 2026-10-16 280 call 36,473 30,619 -5,854 max pain IWM 2026-10-16 288 put 13,578 8,546 -5,032 max pain IWM 2026-12-18 240 put 66,385 61,388 -4,997 max pain
Single stocks: increases Symbol Expiry Strike Type Prior OI Current OI Change WMT 2026-11-20 120 call 14,108 118,906 +104,798 max pain CMG 2026-11-06 25 put 12 35,562 +35,550 max pain INTC 2026-11-20 130 call 60,703 95,244 +34,541 max pain U 2026-10-30 47 call 414 29,869 +29,455 max pain DIS 2026-10-23 106 put 66 23,229 +23,163 max pain NVDA 2026-12-18 210 put 29,253 52,347 +23,094 max pain ARM 2026-12-18 330 call 1,071 22,191 +21,120 max pain NVDA 2026-12-18 170 put 18,433 39,457 +21,024 max pain BAC 2026-10-16 50 put 8,534 26,109 +17,575 max pain MSFT 2026-10-30 575 call 487 15,520 +15,033 max pain
Single stocks: decreases Symbol Expiry Strike Type Prior OI Current OI Change WMT 2026-11-20 115 call 122,019 57,355 -64,664 max pain U 2026-10-16 46 call 66,289 36,623 -29,666 max pain ARM 2026-11-20 320 call 22,904 2,623 -20,281 max pain NU 2026-10-16 17 call 34,073 17,348 -16,725 max pain NU 2026-10-16 16 call 41,230 25,488 -15,742 max pain MU 2026-12-18 1,200 call 16,585 10,173 -6,412 max pain SNAP 2026-10-16 6 call 49,001 42,767 -6,234 max pain GOOGL 2026-10-16 400 call 24,407 18,227 -6,180 max pain AMC 2027-01-15 3.5 put 11,359 5,222 -6,137 max pain GOOGL 2026-12-18 450 call 17,112 11,266 -5,846 max pain
Calls vs puts Type Added Removed Net Calls +3,663,469 -910,789 +2,752,680 Puts +3,699,098 -613,820 +3,085,278
Top call increases Symbol Expiry Strike Type Prior OI Current OI Change WMT 2026-11-20 120 call 14,108 118,906 +104,798 max pain INTC 2026-11-20 130 call 60,703 95,244 +34,541 max pain SPY 2026-10-30 834 call 10,319 39,909 +29,590 max pain U 2026-10-30 47 call 414 29,869 +29,455 max pain TLT 2026-10-16 80.5 call 5,666 33,194 +27,528 max pain
Top put increases Symbol Expiry Strike Type Prior OI Current OI Change SPX 2026-11-27 6,500 put 44 60,817 +60,773 max pain SPX 2026-11-27 6,400 put 29 58,927 +58,898 max pain SPY 2026-10-14 736 put 2,464 51,580 +49,116 max pain CMG 2026-11-06 25 put 12 35,562 +35,550 max pain IWM 2026-11-20 263 put 25,075 59,789 +34,714 max pain
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 % IWM 2026-10-30 278 call 1,168 27,211 +26,043 +2,229.7% max pain SPY 2026-10-14 736 put 2,464 51,580 +49,116 +1,993.3% max pain ARM 2026-12-18 330 call 1,071 22,191 +21,120 +1,972% max pain SPY 2026-12-18 245 put 1,204 20,651 +19,447 +1,615.2% max pain XLF 2026-10-23 53 put 2,023 34,357 +32,334 +1,598.3% max pain SPY 2026-10-30 625 put 1,185 11,858 +10,673 +900.7% max pain IWM 2026-10-16 263 put 1,354 13,372 +12,018 +887.6% max pain IWM 2026-11-20 296 call 1,021 10,022 +9,001 +881.6% max pain WMT 2026-11-20 120 call 14,108 118,906 +104,798 +742.8% max pain TLT 2027-05-21 80 call 1,715 13,987 +12,272 +715.6% max pain SPX 2026-11-13 7,025 put 1,038 8,123 +7,085 +682.6% max pain IWM 2026-11-20 298 call 1,515 10,530 +9,015 +595% max pain INTC 2026-10-23 97 put 1,098 7,190 +6,092 +554.8% max pain QQQ 2026-10-14 500 put 1,572 10,166 +8,594 +546.7% max pain QQQ 2026-10-14 751 call 1,024 6,502 +5,478 +535% max pain SPY 2026-10-23 825 call 1,313 8,170 +6,857 +522.2% max pain MU 2026-10-14 1,000 call 1,263 7,625 +6,362 +503.7% max pain NVDA 2026-10-14 190 put 2,040 12,045 +10,005 +490.4% max pain TLT 2026-10-16 80.5 call 5,666 33,194 +27,528 +485.8% max pain QQQ 2026-10-16 707 put 2,447 14,030 +11,583 +473.4% max pain
Decreases Symbol Expiry Strike Type Prior OI Current OI Change Change % IWM 2026-10-16 289 put 1,620 98 -1,522 -94% max pain MU 2026-11-06 835 put 2,382 156 -2,226 -93.5% max pain ARM 2026-11-20 320 call 22,904 2,623 -20,281 -88.5% max pain SBUX 2026-10-16 100 put 3,097 407 -2,690 -86.9% max pain C 2026-10-16 140 put 3,611 600 -3,011 -83.4% max pain WFC 2026-10-16 90 put 2,923 676 -2,247 -76.9% max pain QQQ 2026-11-20 756 call 1,923 456 -1,467 -76.3% max pain MRNA 2026-10-16 120 call 1,164 313 -851 -73.1% max pain OPEN 2027-01-15 10 put 3,415 966 -2,449 -71.7% max pain JPM 2026-10-16 355 put 1,451 412 -1,039 -71.6% max pain EEM 2026-10-16 66 call 21,374 6,101 -15,273 -71.5% max pain GRAB 2027-01-15 5.5 put 2,307 774 -1,533 -66.4% max pain GOOGL 2026-12-18 500 call 8,689 3,024 -5,665 -65.2% max pain XLE 2026-10-16 67 call 22,894 8,064 -14,830 -64.8% max pain TLT 2026-10-30 68 call 1,101 401 -700 -63.6% max pain META 2026-10-30 665 put 1,372 506 -866 -63.1% max pain SPX 2026-10-20 7,710 put 1,300 490 -810 -62.3% max pain PLTR 2026-10-16 185 call 8,757 3,488 -5,269 -60.2% max pain AMD 2027-01-15 820 call 2,825 1,128 -1,697 -60.1% max pain SMR 2026-11-20 11 put 3,418 1,373 -2,045 -59.8% max pain
Top strikes, summed across expirations Symbol Strike Type Change Expirations summed WMT 120 call +104,436 15 SPX 6,400 put +64,063 39 WMT 115 call -62,449 16 SPX 6,500 put +61,258 33 IWM 263 put +54,614 11 SPY 736 put +49,218 10 INTC 130 call +36,336 20 CMG 25 put +35,640 10 QQQ 760 call +34,918 26 XLF 53 put +33,042 14 IWM 278 call +32,877 17 NVDA 210 put +32,493 21 NVDA 170 put +31,784 24 FXI 28 put +30,904 2 U 47 call +29,961 8 U 46 call -29,662 6 SPY 834 call +29,591 2 IWM 225 put +29,086 6 TLT 80.5 call +27,858 9 XLE 70 call +27,671 20
Symbols by net change Largest net increases Symbol Kind Net change Calls Puts SPY Index ETF +800,792 +294,720 +506,072 SPX Index +679,911 +206,516 +473,395 QQQ Index ETF +633,465 +246,569 +386,896 NVDA Stock +304,768 +134,317 +170,451 IWM Index ETF +289,869 +129,365 +160,504 INTC Stock +248,414 +155,247 +93,167 MU Stock +188,710 +127,202 +61,508 AAPL Stock +173,476 +107,829 +65,647 TLT ETF +168,169 +130,369 +37,800 TSLA Stock +125,510 +70,338 +55,172
Largest net decreases Symbol Kind Net change Calls Puts NU Stock -11,377 -22,909 +11,532 ITW Stock -209 -226 +17 NOC Stock -202 +206 -408 HUBS Stock -153 -242 +89 CROX Stock -119 +44 -163 WU Stock -116 +192 -308
Archive 2026-10-14 vs 2026-10-13, 210 symbols compared2026-10-13 vs 2026-10-12, 210 symbols compared2026-10-12 vs 2026-10-09, 210 symbols compared2026-10-09 vs 2026-10-08, 168 symbols compared2026-10-08 vs 2026-10-07, 158 symbols compared2026-10-07 vs 2026-10-06, 135 symbols compared2026-10-06 vs 2026-10-05, 136 symbols compared2026-10-05 vs 2026-10-02, 155 symbols compared2026-10-02 vs 2026-10-01, 148 symbols compared2026-10-01 vs 2026-09-30, 156 symbols compared