OI update signal: Likely updated
MSFT / AAPL · Checked Oct 26, 11:45 EDT
The latest collection was incomplete. Some data may be out of date.
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AADX,AAMI,AAP,ABAT,ABCB,ABEO,ABG,ABM,ABOS,ABSI,ABTC,ABUS,ABVC,ACB,ACET,ACH,ACHC,ACLS,ACMR,ACNB,ACOG,ACRS,ACTG,ADIG,ADTN,ADUR,ADUS,AER,AESI,AEXA,AFCG,AGEN,AGI,AGIO,AGL,AGNT,AGYS,AHRT,AIFC,AIFU,AIP,AIRJ,AIRO,AIRS,AKBA,ALC,ALDX,ALEC,ALGT,ALH,ALKS,ALKT,ALLO,ALLT,ALMS,ALNY,ALT,ALTI,ALTO,AMAL,AMBA,AMBQ,AMCX,AMPG,AMPL,AMPY,AMR,AMRC,AMRZ,AMTM,AMTX,ANAB,ANGI,ANGO,ANGX,ANIK,ANIP,ANIX,ANNX,ANRO,ANVS,AOSL,APEI,APLE,APOG,ARAY,ARCO,ARDT,ARDX,AREC,ARIS,ARLO,AROC,AROW,ARQ,ARTV,ARX,ARXS,ASAN,ASC,ASLE,ASMB,ASO,ASPN,ASTE,ASTH,ASTI,ASTL,ASUR,ASYS,ATEC,ATEN,ATLO,ATNI,ATRC,ATRO,AU,AUDC,AUGO,AUPH,AVAH,AVBC,AVPT,AVR,AWI,AWR,AWRE,AXGN,AXSM,AYA,AZ,BANC,BAND,BANF,BBD,BBVA,BCPC,BCSF,BKKT,BLZE,BMI,BMO,BMRC,BNS,BSBR,BUSE,CENN,COLD,CUE,DDD,DOX,DRTS,EZPW,FAC,FATE,FBIO,FBNC,FCBC,FDMT,FDXF,FELE,FER,FERG,FFBC,FHTX,FIRY,FISI,FLD,FLL,FLNA,FLNG,FLOC,FLUT,FLWS,FLY,FMAO,FMBH,FMNB,FNLC,FORM,FORR,FOSL,FPH,FRHC,FSBC,FSTR,FSUN,FSV,FTRE,FWDI,FWRG,GDYN,GFI,GH,GLBS,GLOO,GPI,GPRE,GRBK,GRDN,GSBC,GSIT,GTN,HAFN,HAPN,HASI,HAWK,HBM,HBNC,HBT,HCSG,HDB,HDSN,HE,HEI,HELP,HESM,HHH,HITI,HLF,HMY,HNGE,HNRG,HNST,HONA,HOS,HPK,HPP,HRI,HROW,HRZN,HSBC,HTFL,HTGC,HTT,HUBG,HUCK,HUMA,HUN,HY,IA,IART,ICHR,ICL,ICLR,IDYA,IESC,IGIC,IIPR,IMMX,IMNM,IMPP,IMTX,IMUX,IMVT,IMXI,INBK,INBX,ING,INGN,INIO,INMB,INMD,INOD,INR,INSE,INSM,INSP,INV,INVE,INVX,IOND,IONS,IPWR,IRLA,IRMD,IRTC,IRWD,IVR,IVVD,LFWD,MT,NTLA,PI,RAIL,RCEL,RCUS,SBC,SEV,SPRY,SRCE,THFF,TKNO,TRAX,TXGUMC
Daily option chain
Daily open interest
vs Oct 21, 2026
Saved stock price: $18.75 · Expirations before Oct 23, 2026 hidden automatically.
ITM In the money
Unshaded: out of the money
ATM Strike equals stock price
Based on the saved stock price
312 contracts / 8 expirationsClick OI for history
·
Nov 20, 2026EXPIRATION44 contracts / 22 strikes
SAVED STOCK PRICE$18.75Nearest ATM strike $19.00
Jump to ATM | Calls | Strike | Puts | ||||||
|---|---|---|---|---|---|---|---|---|
| Prev OI | Open interest | Change | IV | Prev OI | Open interest | Change | IV | |
| 0 | 0In the money | 0New | 92.74% | 13.00 | 0 | 0 | 0New | 90.56% |
| 20 | 25In the money | +5 | 83.72% | 14.00 | 1 | 3 | +2 | 79.15% |
| 0 | 6In the money | +6New | 73.23% | 15.00 | 6 | 711 | +705 | 69.97% |
| 1 | 2In the money | +1 | 69.29% | 16.00 | 17 | 217 | +200 | 65.24% |
| 7 | 7In the money | 0 | 59.76% | 17.00 | 94 | 100 | +6 | 61.23% |
| 13 | 16In the money | +3 | 60.05% | 18.00 | 231 | 234 | +3 | 61.44% |
STOCK PRICE $18.75 | ||||||||
| 8 | 38 | +30 | 61.31% | 19.00NEAREST ATM | 176 | 215In the money | +39 | 60.33% |
| 174 | 191 | +17 | 60.29% | 20.00 | 742 | 737In the money | -5 | 59.34% |
| 213 | 225 | +12 | 58.72% | 21.00 | 282 | 288In the money | +6 | 59.14% |
| 182 | 181 | -1 | 59.24% | 22.00 | 812 | 671In the money | -141 | 57.98% |
| 28,582 | 29,421 | +839 | 56.36% | 23.00 | 1,736 | 1,736In the money | 0 | 59.41% |
| 1,836 | 1,847 | +11 | 61.74% | 24.00 | 544 | 543In the money | -1 | 55.53% |
| 2,922 | 2,940 | +18 | 65.82% | 25.00 | 341 | 341In the money | 0 | 89.84% |
| 28,696 | 29,435 | +739 | 68.50% | 26.00 | 5 | 5In the money | 0 | 97.94% |
| 192 | 192 | 0 | 78.90% | 27.00 | 87 | 87In the money | 0 | 100.96% |
| 438 | 440 | +2 | 84.89% | 28.00 | 2 | 0In the money | -2 | 121.31% |
| 97 | 98 | +1 | 80.18% | 29.00 | 0 | 0In the money | 0New | 128.34% |
| 737 | 737 | 0 | 76.89% | 30.00 | 0 | 0In the money | 0New | 171.08% |
| 94 | 94 | 0 | 89.96% | 31.00 | 0 | 0In the money | 0New | 178.06% |
| 43 | 43 | 0 | 106.06% | 32.00 | 0 | 0In the money | 0New | 184.71% |
| 35 | 35 | 0 | 110.79% | 33.00 | 0 | 0In the money | 0New | 191.06% |
| 198 | 198 | 0 | 107.19% | 35.00 | 0 | 0In the money | 0New | 202.95% |
Dec 18, 2026EXPIRATION36 contracts / 18 strikes
SAVED STOCK PRICE$18.75Nearest ATM strike $19.00
Jump to ATM | Calls | Strike | Puts | ||||||
|---|---|---|---|---|---|---|---|---|
| Prev OI | Open interest | Change | IV | Prev OI | Open interest | Change | IV | |
| 0 | 0In the money | 0New | 61.36% | 13.00 | 0 | 0 | 0New | 61.06% |
| 2 | 20In the money | +18 | 56.01% | 14.00 | 32 | 59 | +27 | 60.66% |
| 0 | 0In the money | 0New | 59.29% | 15.00 | 0 | 0 | 0New | 59.64% |
| 1 | 1In the money | 0 | 57.19% | 16.00 | 10 | 10 | 0 | 56.50% |
| 0 | 0In the money | 0New | 58.16% | 17.00 | 6 | 6 | 0 | 55.80% |
| 0 | 0In the money | 0New | 55.42% | 18.00 | 0 | 0 | 0New | 53.51% |
STOCK PRICE $18.75 | ||||||||
| 1 | 1 | 0 | 54.78% | 19.00NEAREST ATM | 1,504 | 1,507In the money | +3 | 52.27% |
| 1 | 11 | +10 | 55.18% | 20.00 | 3 | 7In the money | +4 | 53.67% |
| 24 | 24 | 0 | 55.28% | 21.00 | 0 | 31In the money | +31New | 56.61% |
| 9 | 9 | 0 | 54.50% | 22.00 | 0 | 3In the money | +3New | 55.10% |
| 72 | 73 | +1 | 55.48% | 23.00 | 1 | 1In the money | 0 | 56.30% |
| 4 | 6 | +2 | 55.61% | 24.00 | 50 | 50In the money | 0 | 58.10% |
| 14 | 15 | +1 | 55.06% | 25.00 | 37 | 37In the money | 0 | 58.18% |
| 30 | 32 | +2 | 56.28% | 26.00 | 0 | 0In the money | 0New | 63.78% |
| 23 | 23 | 0 | 56.00% | 27.00 | 0 | 0In the money | 0New | 65.20% |
| 74 | 74 | 0 | 60.24% | 28.00 | 0 | 0In the money | 0New | 65.40% |
| 0 | 0 | 0New | 60.96% | 29.00 | 0 | 0In the money | 0New | 100.41% |
| 0 | 0 | 0New | 64.67% | 30.00 | 0 | 0In the money | 0New | 105.43% |
Jan 15, 2027EXPIRATION82 contracts / 41 strikes
SAVED STOCK PRICE$18.75Nearest ATM strike $19.00
Jump to ATM | Calls | Strike | Puts | ||||||
|---|---|---|---|---|---|---|---|---|
| Prev OI | Open interest | Change | IV | Prev OI | Open interest | Change | IV | |
| 0 | 0In the money | 0New | 244.78% | 2.00 | 1 | 1 | 0 | 210.28% |
| 0 | 0In the money | 0New | 0.00% | 3.00 | 32 | 32 | 0 | 171.40% |
| 6 | 6In the money | 0 | 0.00% | 4.00 | 25 | 25 | 0 | 160.06% |
| 62 | 62In the money | 0 | 0.00% | 5.00 | 69 | 69 | 0 | 137.62% |
| 0 | 0In the money | 0New | 0.00% | 6.00 | 4 | 4 | 0 | 119.57% |
| 77 | 77In the money | 0 | 116.79% | 7.00 | 1,709 | 1,709 | 0 | 104.45% |
| 23 | 23In the money | 0 | 0.00% | 8.00 | 78 | 78 | 0 | 91.42% |
| 0 | 0In the money | 0New | 75.07% | 9.00 | 47 | 47 | 0 | 79.95% |
| 8,233 | 8,233In the money | 0 | 0.00% | 10.00 | 5,112 | 5,112 | 0 | 69.68% |
| 30 | 30In the money | 0 | 0.00% | 11.00 | 174 | 174 | 0 | 64.99% |
| 2,726 | 2,726In the money | 0 | 65.48% | 12.00 | 673 | 684 | +11 | 62.20% |
| 66 | 66In the money | 0 | 59.26% | 13.00 | 4,314 | 4,314 | 0 | 61.48% |
| 175 | 176In the money | +1 | 58.66% | 14.00 | 1,641 | 1,641 | 0 | 53.47% |
| 4,390 | 4,391In the money | +1 | 55.39% | 15.00 | 1,817 | 1,817 | 0 | 56.46% |
| 135 | 136In the money | +1 | 56.10% | 16.00 | 1,927 | 1,926 | -1 | 55.47% |
| 484 | 484In the money | 0 | 53.99% | 17.00 | 2,236 | 2,245 | +9 | 55.33% |
| 837 | 837In the money | 0 | 54.94% | 18.00 | 1,117 | 1,128 | +11 | 53.46% |
STOCK PRICE $18.75 | ||||||||
| 331 | 331 | 0 | 52.75% | 19.00NEAREST ATM | 1,441 | 1,951In the money | +510 | 52.23% |
| 4,220 | 4,214 | -6 | 54.01% | 20.00 | 5,279 | 5,280In the money | +1 | 52.24% |
| 375 | 376 | +1 | 52.51% | 21.00 | 566 | 564In the money | -2 | 51.52% |
| 391 | 391 | 0 | 51.97% | 22.00 | 4,320 | 4,321In the money | +1 | 51.77% |
| 360 | 325 | -35 | 52.03% | 23.00 | 1,334 | 1,331In the money | -3 | 51.84% |
| 5,468 | 443 | -5,025 | 53.27% | 24.00 | 5,426 | 337In the money | -5,089 | 56.03% |
| 11,616 | 8,714 | -2,902 | 52.12% | 25.00 | 297 | 274In the money | -23 | 55.25% |
| 1,597 | 1,596 | -1 | 51.66% | 26.00 | 227 | 211In the money | -16 | 55.17% |
| 334 | 334 | 0 | 55.82% | 27.00 | 449 | 445In the money | -4 | 49.00% |
| 548 | 545 | -3 | 59.74% | 28.00 | 67 | 65In the money | -2 | 57.27% |
| 285 | 285 | 0 | 54.41% | 29.00 | 56 | 50In the money | -6 | 56.49% |
| 1,184 | 1,192 | +8 | 55.22% | 30.00 | 90 | 41In the money | -49 | 64.73% |
| 370 | 370 | 0 | 58.21% | 31.00 | 84 | 0In the money | -84 | 103.18% |
| 395 | 395 | 0 | 58.09% | 32.00 | 52 | 3In the money | -49 | 66.56% |
| 134 | 134 | 0 | 60.74% | 33.00 | 2 | 2In the money | 0 | 106.99% |
| 44 | 44 | 0 | 63.30% | 34.00 | 25 | 24In the money | -1 | 104.17% |
| 581 | 581 | 0 | 65.75% | 35.00 | 1 | 0In the money | -1 | 97.73% |
| 93 | 93 | 0 | 68.12% | 36.00 | 8 | 0In the money | -8 | 110.83% |
| 99 | 99 | 0 | 70.40% | 37.00 | 0 | 0In the money | 0New | 113.98% |
| 39 | 39 | 0 | 68.34% | 38.00 | 0 | 0In the money | 0New | 109.57% |
| 48 | 48 | 0 | 70.39% | 39.00 | 0 | 0In the money | 0New | 130.92% |
| 577 | 577 | 0 | 72.37% | 40.00 | 0 | 0In the money | 0New | 115.22% |
| 154 | 152 | -2 | 74.29% | 41.00 | 0 | 0In the money | 0New | 123.12% |
| 6 | 6 | 0 | 466.35% | 1000.00 | 32 | 32In the money | 0 | 281.25% |
Apr 16, 2027EXPIRATION50 contracts / 25 strikes
SAVED STOCK PRICE$18.75Nearest ATM strike $19.00
Jump to ATM | Calls | Strike | Puts | ||||||
|---|---|---|---|---|---|---|---|---|
| Prev OI | Open interest | Change | IV | Prev OI | Open interest | Change | IV | |
| 11 | 11In the money | 0 | 65.34% | 10.00 | 11 | 11 | 0 | 62.63% |
| 0 | 0In the money | 0New | 62.13% | 11.00 | 4 | 6 | +2 | 61.30% |
| 10 | 10In the money | 0 | 58.07% | 12.00 | 1 | 1 | 0 | 59.58% |
| 0 | 0In the money | 0New | 57.42% | 13.00 | 0 | 0 | 0New | 57.52% |
| 0 | 3In the money | +3New | 56.80% | 14.00 | 45 | 45 | 0 | 56.72% |
| 9 | 9In the money | 0 | 56.11% | 15.00 | 533 | 534 | +1 | 55.89% |
| 2 | 2In the money | 0 | 55.31% | 16.00 | 1,917 | 1,917 | 0 | 54.96% |
| 0 | 0In the money | 0New | 55.52% | 17.00 | 55 | 66 | +11 | 54.48% |
| 14 | 15In the money | +1 | 54.48% | 18.00 | 3,528 | 3,528 | 0 | 53.83% |
STOCK PRICE $18.75 | ||||||||
| 14 | 14 | 0 | 53.39% | 19.00NEAREST ATM | 2,355 | 2,355In the money | 0 | 53.05% |
| 19 | 41 | +22 | 53.74% | 20.00 | 68 | 77In the money | +9 | 52.68% |
| 67 | 68 | +1 | 53.60% | 21.00 | 679 | 679In the money | 0 | 52.74% |
| 47 | 37 | -10 | 52.56% | 22.00 | 532 | 532In the money | 0 | 51.84% |
| 2,718 | 2,694 | -24 | 52.67% | 23.00 | 44 | 44In the money | 0 | 53.11% |
| 96 | 97 | +1 | 52.55% | 24.00 | 78 | 78In the money | 0 | 53.66% |
| 441 | 431 | -10 | 52.26% | 25.00 | 38 | 38In the money | 0 | 53.48% |
| 94 | 94 | 0 | 53.07% | 26.00 | 20 | 20In the money | 0 | 53.78% |
| 43 | 43 | 0 | 52.72% | 27.00 | 0 | 0In the money | 0New | 54.80% |
| 10 | 10 | 0 | 53.14% | 28.00 | 0 | 0In the money | 0New | 55.32% |
| 115 | 115 | 0 | 53.10% | 29.00 | 0 | 0In the money | 0New | 55.29% |
| 458 | 458 | 0 | 52.52% | 30.00 | 0 | 0In the money | 0New | 56.48% |
| 6 | 16 | +10 | 53.22% | 31.00 | 0 | 0In the money | 0New | 57.32% |
| 1 | 1 | 0 | 53.60% | 32.00 | 0 | 0In the money | 0New | 59.96% |
| 3 | 3 | 0 | 54.75% | 33.00 | 0 | 0In the money | 0New | 60.25% |
| 212 | 212 | 0 | 53.90% | 35.00 | 0 | 0In the money | 0New | 67.32% |
Jan 21, 2028EXPIRATION34 contracts / 17 strikes
SAVED STOCK PRICE$18.75Nearest ATM strike $20.00
Jump to ATM | Calls | Strike | Puts | ||||||
|---|---|---|---|---|---|---|---|---|
| Prev OI | Open interest | Change | IV | Prev OI | Open interest | Change | IV | |
| 0 | 0In the money | 0New | 0.00% | 2.00 | 0 | 0 | 0New | 101.87% |
| 0 | 0In the money | 0New | 134.30% | 3.00 | 3 | 3 | 0 | 88.81% |
| 0 | 0In the money | 0New | 102.98% | 4.00 | 25 | 25 | 0 | 75.05% |
| 37 | 37In the money | 0 | 52.68% | 5.00 | 78 | 78 | 0 | 71.05% |
| 63 | 63In the money | 0 | 0.00% | 8.00 | 670 | 673 | +3 | 63.04% |
| 309 | 309In the money | 0 | 59.78% | 10.00 | 234 | 236 | +2 | 66.64% |
| 323 | 323In the money | 0 | 68.28% | 12.00 | 186 | 186 | 0 | 62.10% |
| 693 | 695In the money | +2 | 55.31% | 15.00 | 74 | 77 | +3 | 55.46% |
| 2,330 | 2,329In the money | -1 | 54.58% | 17.00 | 654 | 664 | +10 | 47.87% |
STOCK PRICE $18.75 | ||||||||
| 1,214 | 1,214 | 0 | 52.80% | 20.00NEAREST ATM | 410 | 410In the money | 0 | 54.83% |
| 154 | 154 | 0 | 53.14% | 22.00 | 356 | 356In the money | 0 | 53.53% |
| 1,557 | 1,564 | +7 | 53.20% | 25.00 | 130 | 130In the money | 0 | 52.91% |
| 16,747 | 17,748 | +1,001 | 51.96% | 27.00 | 16 | 16In the money | 0 | 53.64% |
| 61,613 | 61,613 | 0 | 52.03% | 30.00 | 9,104 | 9,104In the money | 0 | 51.42% |
| 218 | 218 | 0 | 53.04% | 35.00 | 12 | 12In the money | 0 | 41.58% |
| 177 | 177 | 0 | 53.04% | 40.00 | 7 | 7In the money | 0 | 54.58% |
| 10 | 10 | 0 | 344.22% | 1000.00 | 0 | 0In the money | 0New | 257.76% |
Mar 17, 2028EXPIRATION22 contracts / 11 strikes
SAVED STOCK PRICE$18.75Nearest ATM strike $18.00
Jump to ATM | Calls | Strike | Puts | ||||||
|---|---|---|---|---|---|---|---|---|
| Prev OI | Open interest | Change | IV | Prev OI | Open interest | Change | IV | |
| 0 | 0In the money | 0New | 50.65% | 10.00 | 0 | 0 | 0New | 59.79% |
| 0 | 0In the money | 0New | 57.62% | 13.00 | 2 | 2 | 0 | 56.55% |
| 1 | 1In the money | 0 | 52.29% | 15.00 | 0 | 0 | 0New | 53.23% |
| 0 | 0In the money | 0New | 53.64% | 18.00NEAREST ATM | 0 | 0 | 0New | 53.60% |
STOCK PRICE $18.75 | ||||||||
| 0 | 0 | 0New | 52.72% | 20.00 | 0 | 0In the money | 0New | 52.51% |
| 0 | 0 | 0New | 52.31% | 22.00 | 0 | 0In the money | 0New | 41.22% |
| 0 | 0 | 0New | 45.77% | 25.00 | 0 | 0In the money | 0New | 40.81% |
| 0 | 0 | 0New | 51.73% | 27.00 | 0 | 0In the money | 0New | 51.44% |
| 1,801 | 1,801 | 0 | 50.95% | 30.00 | 0 | 0In the money | 0New | 50.88% |
| 1 | 1 | 0 | 51.09% | 32.00 | 0 | 0In the money | 0New | 52.26% |
| 0 | 0 | 0New | 50.62% | 35.00 | 0 | 0In the money | 0New | 50.40% |
Jun 16, 2028EXPIRATION22 contracts / 11 strikes
SAVED STOCK PRICE$18.75Nearest ATM strike $18.00
Jump to ATM | Calls | Strike | Puts | ||||||
|---|---|---|---|---|---|---|---|---|
| Prev OI | Open interest | Change | IV | Prev OI | Open interest | Change | IV | |
| 0 | 0In the money | 0New | 49.18% | 10.00 | 0 | 0 | 0New | 71.61% |
| 0 | 0In the money | 0New | 54.80% | 13.00 | 3 | 3 | 0 | 55.32% |
| 0 | 0In the money | 0New | 45.17% | 15.00 | 1 | 1 | 0 | 46.02% |
| 0 | 0In the money | 0New | 51.63% | 18.00NEAREST ATM | 0 | 0 | 0New | 45.03% |
STOCK PRICE $18.75 | ||||||||
| 13 | 13 | 0 | 51.22% | 20.00 | 2,289 | 2,289In the money | 0 | 50.52% |
| 0 | 0 | 0New | 50.79% | 22.00 | 0 | 0In the money | 0New | 51.07% |
| 0 | 0 | 0New | 47.57% | 25.00 | 0 | 0In the money | 0New | 43.96% |
| 170 | 170 | 0 | 49.30% | 27.00 | 0 | 0In the money | 0New | 49.26% |
| 4,150 | 4,150 | 0 | 48.17% | 30.00 | 0 | 0In the money | 0New | 49.54% |
| 0 | 0 | 0New | 49.92% | 32.00 | 0 | 0In the money | 0New | 0.00% |
| 12 | 12 | 0 | 49.81% | 35.00 | 0 | 0In the money | 0New | 0.00% |
Jan 19, 2029EXPIRATION22 contracts / 11 strikes
SAVED STOCK PRICE$18.75Nearest ATM strike $18.00
Jump to ATM | Calls | Strike | Puts | ||||||
|---|---|---|---|---|---|---|---|---|
| Prev OI | Open interest | Change | IV | Prev OI | Open interest | Change | IV | |
| 0 | 0In the money | 0New | 30.21% | 10.00 | 0 | 0 | 0New | 48.07% |
| 6 | 6In the money | 0 | 56.58% | 13.00 | 4 | 4 | 0 | 48.94% |
| 36 | 39In the money | +3 | 55.98% | 15.00 | 31 | 33 | +2 | 55.04% |
| 41 | 70In the money | +29 | 54.24% | 18.00NEAREST ATM | 5 | 6 | +1 | 59.74% |
STOCK PRICE $18.75 | ||||||||
| 27 | 27 | 0 | 52.20% | 20.00 | 22 | 22In the money | 0 | 50.78% |
| 164 | 164 | 0 | 52.44% | 22.00 | 24 | 23In the money | -1 | 50.91% |
| 32 | 32 | 0 | 51.74% | 25.00 | 2 | 2In the money | 0 | 50.98% |
| 4,235 | 4,235 | 0 | 49.48% | 27.00 | 0 | 0In the money | 0New | 51.08% |
| 2,046 | 2,044 | -2 | 50.15% | 30.00 | 0 | 0In the money | 0New | 51.07% |
| 549 | 549 | 0 | 48.38% | 32.00 | 7 | 7In the money | 0 | 50.10% |
| 2,038 | 2,038 | 0 | 48.84% | 35.00 | 1 | 1In the money | 0 | 50.51% |
Click an OI number to view that contract's history. Click an expiration to show or hide its contracts. Unobserved daily OI is treated as zero; an empty call/put side means no contract at that strike.
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