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 Some data may be out of date.
View affected symbolsAADX,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,TXG

CSTM

Daily option chain

Daily open interest

vs Oct 20, 2026

Saved stock price: $23.99 · 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
262 contracts / 5 expirationsClick OI for history
Nov 20, 2026EXPIRATION58 contracts / 29 strikes
SAVED STOCK PRICE$23.99Nearest ATM strike $24.00
Jump to ATM
CSTM option chain expiring 2026-11-20, open interest on 2026-10-23 compared with 2026-10-20
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
5 5In the money 0 141.26% 15.00 2 2 0 194.77%
1 1In the money 0 125.72% 16.00 6 6 0 145.98%
0 0In the money 0New 136.76% 17.00 7 7 0 159.16%
0 0In the money 0New 89.00% 18.00 8 8 0 143.21%
0 0In the money 0New 113.80% 19.00 18 18 0 87.49%
13 13In the money 0 84.93% 20.00 338 348 +10 81.49%
36 36In the money 0 71.90% 21.00 11 11 0 59.75%
11 11In the money 0 68.50% 22.00 9 9 0 50.30%
1 1In the money 0 49.59% 23.00 95 94 -1 48.46%
STOCK PRICE $23.99
21 21 0 41.65% 24.00NEAREST ATM 60 61In the money +1 51.78%
86 97 +11 50.76% 25.00 555 557In the money +2 49.69%
1,189 1,224 +35 51.41% 26.00 38 38In the money 0 49.11%
645 681 +36 57.46% 27.00 102 102In the money 0 0.00%
521 593 +72 55.14% 28.00 45 35In the money -10 32.91%
422 450 +28 61.41% 29.00 102 102In the money 0 0.00%
1,472 1,505 +33 65.22% 30.00 30 30In the money 0 0.00%
207 208 +1 65.94% 31.00 117 117In the money 0 0.00%
353 353 0 67.14% 32.00 119 104In the money -15 0.00%
964 964 0 66.65% 33.00 50 50In the money 0 0.00%
792 792 0 103.36% 34.00 7 7In the money 0 0.00%
881 881 0 85.14% 35.00 0 0In the money 0New 0.00%
14 14 0 114.44% 36.00 0 0In the money 0New 0.00%
20 20 0 94.44% 37.00 0 0In the money 0New 0.00%
266 266 0 124.59% 38.00 0 0In the money 0New 0.00%
78 78 0 129.36% 39.00 0 0In the money 0New 104.48%
49 49 0 133.96% 40.00 0 0In the money 0New 87.84%
65 65 0 188.61% 45.00 1 1In the money 0 0.00%
195 195 0 212.28% 50.00 0 0In the money 0New 0.00%
452 452 0 187.87% 55.00 0 0In the money 0New 0.00%
Dec 18, 2026EXPIRATION34 contracts / 17 strikes
SAVED STOCK PRICE$23.99Nearest ATM strike $24.00
Jump to ATM
CSTM option chain expiring 2026-12-18, open interest on 2026-10-23 compared with 2026-10-20
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
0 0In the money 0New 61.16% 18.00 0 0 0New 74.25%
0 0In the money 0New 67.34% 19.00 0 0 0New 74.37%
0 0In the money 0New 68.99% 20.00 0 0 0New 55.94%
0 0In the money 0New 64.87% 21.00 0 0 0New 51.04%
0 0In the money 0New 61.10% 22.00 1 1 0 44.24%
0 0In the money 0New 53.86% 23.00 1 1 0 46.35%
STOCK PRICE $23.99
0 0 0New 45.38% 24.00NEAREST ATM 0 1In the money +1New 50.29%
0 1 +1New 34.25% 25.00 0 1In the money +1New 40.44%
0 0 0New 42.03% 26.00 0 1In the money +1New 48.47%
0 1 +1New 45.46% 27.00 1 2In the money +1 26.41%
0 2 +2New 45.78% 28.00 0 0In the money 0New 27.35%
0 1 +1New 54.42% 29.00 0 0In the money 0New 0.00%
0 0 0New 57.32% 30.00 0 0In the money 0New 0.00%
0 3 +3New 69.88% 31.00 0 0In the money 0New 0.00%
0 0 0New 69.34% 32.00 0 15In the money +15New 0.00%
0 0 0New 68.75% 33.00 0 0In the money 0New 0.00%
0 0 0New 56.58% 34.00 0 0In the money 0New 0.00%
Jan 15, 2027EXPIRATION74 contracts / 37 strikes
SAVED STOCK PRICE$23.99Nearest ATM strike $24.00
Jump to ATM
CSTM option chain expiring 2027-01-15, open interest on 2026-10-23 compared with 2026-10-20
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
0 0In the money 0New 398.62% 2.00 0 0 0New 226.18%
17 17In the money 0 320.82% 3.00 0 0 0New 437.83%
1 1In the money 0 271.51% 4.00 0 0 0New 394.84%
31 31In the money 0 235.63% 5.00 0 0 0New 260.59%
18 18In the money 0 164.80% 8.00 55 55 0 223.59%
236 236In the money 0 127.99% 10.00 50 50 0 105.09%
30 30In the money 0 102.93% 13.00 94 94 0 139.44%
798 798In the money 0 100.06% 15.00 71 71 0 115.84%
0 0In the money 0New 93.70% 16.00 14 14 0 105.58%
922 922In the money 0 71.02% 17.00 36 36 0 70.41%
6 6In the money 0 57.82% 18.00 5 5 0 65.02%
2 2In the money 0 62.54% 19.00 3 3 0 53.87%
1,058 1,058In the money 0 62.69% 20.00 2,014 2,014 0 45.95%
41 41In the money 0 63.91% 21.00 4 4 0 44.15%
1,058 1,058In the money 0 50.09% 22.00 125 125 0 45.97%
26 26In the money 0 55.00% 23.00 153 153 0 46.20%
STOCK PRICE $23.99
14 14 0 37.68% 24.00NEAREST ATM 4 5In the money +1 36.49%
641 642 +1 47.07% 25.00 2,065 2,065In the money 0 27.26%
23 23 0 36.09% 26.00 18 18In the money 0 35.96%
5,523 5,525 +2 44.42% 27.00 94 94In the money 0 37.58%
54 54 0 44.77% 28.00 4 4In the money 0 31.02%
24 24 0 43.10% 29.00 57 57In the money 0 0.00%
1,347 1,347 0 46.14% 30.00 1,025 1,025In the money 0 45.61%
112 112 0 59.36% 31.00 87 87In the money 0 0.00%
140 140 0 49.90% 32.00 5 5In the money 0 0.00%
131 131 0 50.47% 33.00 5 5In the money 0 0.00%
136 136 0 71.37% 34.00 3 3In the money 0 0.00%
85 85 0 64.05% 35.00 18 18In the money 0 55.28%
25 25 0 69.11% 36.00 0 0In the money 0New 0.00%
30 30 0 86.32% 37.00 1 1In the money 0 0.00%
2 2 0 94.00% 38.00 0 0In the money 0New 0.00%
30 30 0 83.57% 39.00 0 0In the money 0New 0.00%
207 207 0 90.71% 40.00 0 0In the money 0New 0.00%
140 140 0 85.06% 45.00 0 0In the money 0New 0.00%
333 333 0 100.24% 50.00 0 0In the money 0New 0.00%
0 0 0New 133.49% 55.00 0 0In the money 0New 0.00%
10 10 0 573.73% 1000.00 0 0In the money 0New 296.27%
Feb 19, 2027EXPIRATION58 contracts / 29 strikes
SAVED STOCK PRICE$23.99Nearest ATM strike $24.00
Jump to ATM
CSTM option chain expiring 2027-02-19, open interest on 2026-10-23 compared with 2026-10-20
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
6 6In the money 0 66.42% 15.00 1 1 0 100.26%
0 0In the money 0New 48.76% 17.00 1 1 0 64.77%
0 0In the money 0New 65.09% 18.00 0 0 0New 80.58%
0 0In the money 0New 61.08% 19.00 0 0 0New 50.16%
7 7In the money 0 57.90% 20.00 1 1 0 54.26%
0 0In the money 0New 56.36% 21.00 54 54 0 52.75%
0 0In the money 0New 50.87% 22.00 0 2 +2New 65.55%
2 2In the money 0 58.96% 23.00 1 1 0 57.11%
STOCK PRICE $23.99
0 0 0New 57.00% 24.00NEAREST ATM 0 0In the money 0New 49.78%
14 14 0 52.88% 25.00 1,000 1,000In the money 0 47.26%
14 14 0 56.16% 26.00 34 34In the money 0 46.41%
4 4 0 47.05% 27.00 1 1In the money 0 49.70%
26 26 0 58.07% 28.00 45 45In the money 0 38.88%
10 10 0 57.29% 29.00 3 3In the money 0 37.33%
36 36 0 50.03% 30.00 15 15In the money 0 45.31%
20 20 0 68.01% 31.00 0 0In the money 0New 43.64%
1 1 0 69.44% 32.00 0 0In the money 0New 43.71%
9 9 0 68.95% 33.00 0 0In the money 0New 38.65%
52 52 0 66.84% 34.00 0 0In the money 0New 0.00%
39 39 0 50.61% 35.00 0 0In the money 0New 0.00%
0 1 +1New 51.48% 36.00 0 0In the money 0New 0.00%
1 1 0 59.11% 37.00 0 0In the money 0New 0.00%
1 1 0 56.36% 38.00 0 0In the money 0New 55.75%
1 1 0 75.68% 39.00 0 0In the money 0New 0.00%
17 17 0 83.92% 40.00 0 0In the money 0New 0.00%
2 3 +1 68.53% 41.00 0 0In the money 0New 0.00%
4 5 +1 69.80% 42.00 0 0In the money 0New 0.00%
1 2 +1 76.69% 45.00 0 0In the money 0New 0.00%
1 1 0 73.06% 50.00 0 0In the money 0New 0.00%
May 21, 2027EXPIRATION38 contracts / 19 strikes
SAVED STOCK PRICE$23.99Nearest ATM strike $24.00
Jump to ATM
CSTM option chain expiring 2027-05-21, open interest on 2026-10-23 compared with 2026-10-20
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
5 5In the money 0 56.46% 15.00 0 0 0New 57.91%
0 0In the money 0New 59.70% 17.00 0 0 0New 75.46%
0 0In the money 0New 52.88% 18.00 0 0 0New 67.69%
0 0In the money 0New 56.39% 19.00 4 4 0 63.54%
0 0In the money 0New 54.91% 20.00 0 0 0New 52.27%
1 1In the money 0 54.57% 21.00 3 3 0 55.69%
0 0In the money 0New 52.83% 22.00 0 0 0New 49.91%
1 1In the money 0 60.20% 23.00 22 22 0 53.93%
STOCK PRICE $23.99
1 1 0 50.81% 24.00NEAREST ATM 0 0In the money 0New 47.46%
0 0 0New 56.67% 25.00 11 51In the money +40 48.65%
5 5 0 59.80% 26.00 0 0In the money 0New 48.19%
0 0 0New 51.15% 27.00 0 0In the money 0New 52.37%
4 4 0 56.81% 28.00 10 10In the money 0 51.91%
1 1 0 55.23% 29.00 0 0In the money 0New 51.66%
4 4 0 56.04% 30.00 0 0In the money 0New 47.10%
5 5 0 49.97% 31.00 0 0In the money 0New 47.23%
0 0 0New 57.46% 32.00 0 0In the money 0New 39.98%
0 0 0New 57.37% 33.00 0 0In the money 0New 48.82%
0 0 0New 58.34% 35.00 0 0In the money 0New 37.16%

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