OITracker Cboe delayed data
OI update signal: Not confirmed MSFT / AAPL · Checked Oct 23, 09:56 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 Some data may be out of date.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

CSTL

Daily option chain

Daily open interest

vs Oct 20, 2026

Saved stock price: $33.19 · 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
86 contracts / 4 expirationsClick OI for history
Nov 20, 2026EXPIRATION18 contracts / 9 strikes
SAVED STOCK PRICE$33.19Nearest ATM strike $35.00
Jump to ATM
CSTL option chain expiring 2026-11-20, open interest on 2026-10-23 compared with 2026-10-20
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
0 0In the money 0New 124.66% 17.50 0 0 0New 203.08%
0 0In the money 0New 89.01% 20.00 0 0 0New 181.29%
0 0In the money 0New 78.30% 22.50 0 0 0New 136.20%
0 0In the money 0New 87.89% 25.00 0 0 0New 125.04%
2 2In the money 0 75.65% 30.00 0 0 0New 88.57%
STOCK PRICE $33.19
1 1 0 65.58% 35.00NEAREST ATM 0 0In the money 0New 60.58%
42 42 0 85.00% 40.00 0 0In the money 0New 67.70%
0 0 0New 113.38% 45.00 0 0In the money 0New 0.00%
0 0 0New 116.74% 50.00 0 0In the money 0New 81.71%
Dec 18, 2026EXPIRATION18 contracts / 9 strikes
SAVED STOCK PRICE$33.19Nearest ATM strike $35.00
Jump to ATM
CSTL 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 76.80% 17.50 0 0 0New 155.28%
0 0In the money 0New 84.20% 20.00 0 0 0New 130.87%
0 0In the money 0New 69.95% 22.50 0 0 0New 91.40%
0 0In the money 0New 71.49% 25.00 0 0 0New 93.56%
0 0In the money 0New 65.03% 30.00 0 0 0New 65.97%
STOCK PRICE $33.19
0 0 0New 60.74% 35.00NEAREST ATM 0 0In the money 0New 59.52%
0 0 0New 69.86% 40.00 0 0In the money 0New 57.60%
0 0 0New 65.75% 45.00 0 0In the money 0New 52.06%
0 0 0New 91.66% 50.00 0 0In the money 0New 0.00%
Jan 15, 2027EXPIRATION30 contracts / 15 strikes
SAVED STOCK PRICE$33.19Nearest ATM strike $35.00
Jump to ATM
CSTL option chain expiring 2027-01-15, open interest on 2026-10-23 compared with 2026-10-20
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
2 2In the money 0 0.00% 2.50 0 0 0New 226.46%
2 2In the money 0 169.80% 5.00 0 0 0New 345.58%
0 0In the money 0New 117.03% 7.50 0 0 0New 223.63%
0 0In the money 0New 124.09% 10.00 0 0 0New 182.22%
0 0In the money 0New 0.00% 12.50 2 2 0 180.96%
0 0In the money 0New 72.62% 15.00 4 4 0 151.88%
0 0In the money 0New 89.96% 17.50 2 2 0 127.67%
0 0In the money 0New 78.12% 20.00 3 3 0 107.65%
1 1In the money 0 66.56% 22.50 0 0 0New 91.22%
2 2In the money 0 62.94% 25.00 4 4 0 77.72%
1 1In the money 0 61.38% 30.00 2 2 0 59.54%
STOCK PRICE $33.19
29 29 0 54.66% 35.00NEAREST ATM 0 0In the money 0New 54.70%
19 19 0 60.32% 40.00 0 0In the money 0New 53.31%
6 6 0 72.25% 45.00 0 0In the money 0New 50.59%
0 0 0New 69.06% 50.00 0 0In the money 0New 0.00%
Apr 16, 2027EXPIRATION20 contracts / 10 strikes
SAVED STOCK PRICE$33.19Nearest ATM strike $35.00
Jump to ATM
CSTL option chain expiring 2027-04-16, open interest on 2026-10-23 compared with 2026-10-20
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
1 2In the money +1 71.32% 15.00 0 0 0New 107.00%
0 0In the money 0New 72.60% 17.50 0 0 0New 91.55%
0 0In the money 0New 58.59% 20.00 4 4 0 79.81%
0 0In the money 0New 61.46% 22.50 7 7 0 69.91%
2 2In the money 0 60.59% 25.00 9 9 0 64.04%
0 0In the money 0New 60.19% 30.00 3 3 0 58.81%
STOCK PRICE $33.19
0 0 0New 59.21% 35.00NEAREST ATM 2 2In the money 0 58.95%
0 0 0New 58.61% 40.00 2 2In the money 0 57.28%
3 3 0 55.48% 45.00 0 0In the money 0New 53.26%
0 0 0New 57.20% 50.00 0 0In the money 0New 48.24%

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