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 Some data may be out of date.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

AON

Daily option chain

Daily open interest

vs Oct 21, 2026

Saved stock price: $304.45 · 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
274 contracts / 4 expirationsClick OI for history
Nov 20, 2026EXPIRATION68 contracts / 34 strikes
SAVED STOCK PRICE$304.45Nearest ATM strike $300.00
Jump to ATM
AON option chain expiring 2026-11-20, open interest on 2026-10-23 compared with 2026-10-21
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
0 0In the money 0New 0.00% 185.00 1 1 0 102.46%
0 0In the money 0New 0.00% 190.00 0 0 0New 97.73%
0 0In the money 0New 0.00% 195.00 0 0 0New 93.11%
0 0In the money 0New 0.00% 200.00 2 2 0 88.59%
1 1In the money 0 0.00% 210.00 17 17 0 55.52%
2 2In the money 0 0.00% 220.00 17 17 0 71.73%
4 4In the money 0 0.00% 230.00 7 7 0 64.15%
3 3In the money 0 0.00% 240.00 8 8 0 56.93%
32 32In the money 0 0.00% 250.00 99 99 0 50.41%
3 3In the money 0 35.29% 260.00 116 115 -1 44.75%
17 17In the money 0 33.41% 270.00 62 60 -2 40.76%
104 99In the money -5 35.33% 280.00 93 92 -1 38.81%
137 171In the money +34 33.88% 290.00 48 51 +3 34.82%
358 360In the money +2 32.97% 300.00NEAREST ATM 48 46 -2 35.76%
STOCK PRICE $304.45
261 262 +1 33.50% 310.00 805 805In the money 0 33.79%
33 38 +5 31.65% 320.00 36 36In the money 0 34.67%
373 393 +20 34.18% 330.00 2 2In the money 0 36.18%
51 53 +2 36.65% 340.00 0 0In the money 0New 36.96%
7 7 0 39.01% 350.00 3 3In the money 0 40.24%
155 155 0 42.46% 360.00 2 2In the money 0 38.88%
16 16 0 46.32% 370.00 0 0In the money 0New 42.59%
63 63 0 50.17% 380.00 0 0In the money 0New 41.45%
10 10 0 54.40% 390.00 0 0In the money 0New 42.87%
12 12 0 58.41% 400.00 0 0In the money 0New 46.83%
3 3 0 62.23% 410.00 0 0In the money 0New 50.69%
0 0 0New 66.15% 420.00 0 0In the money 0New 54.45%
0 0 0New 69.93% 430.00 0 0In the money 0New 59.68%
0 0 0New 73.58% 440.00 0 0In the money 0New 65.87%
2 2 0 77.11% 450.00 0 0In the money 0New 65.18%
1 1 0 80.52% 460.00 0 0In the money 0New 70.19%
0 0 0New 83.83% 470.00 0 0In the money 0New 74.95%
0 0 0New 87.04% 480.00 0 0In the money 0New 76.80%
0 0 0New 90.16% 490.00 0 0In the money 0New 74.52%
0 0 0New 93.20% 500.00 0 0In the money 0New 83.13%
Dec 18, 2026EXPIRATION68 contracts / 34 strikes
SAVED STOCK PRICE$304.45Nearest ATM strike $300.00
Jump to ATM
AON option chain expiring 2026-12-18, open interest on 2026-10-23 compared with 2026-10-21
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
0 0In the money 0New 0.00% 170.00 0 0 0New 83.56%
0 0In the money 0New 53.24% 175.00 0 0 0New 79.94%
0 0In the money 0New 45.85% 180.00 0 0 0New 76.42%
0 0In the money 0New 0.00% 185.00 0 0 0New 72.98%
0 0In the money 0New 0.00% 190.00 0 0 0New 69.63%
0 0In the money 0New 37.92% 195.00 5 5 0 66.32%
2 2In the money 0 0.00% 200.00 4 4 0 63.39%
0 0In the money 0New 0.00% 210.00 4 4 0 57.42%
2 2In the money 0 38.09% 220.00 4 4 0 51.90%
0 0In the money 0New 34.21% 230.00 3 3 0 46.86%
1 1In the money 0 35.17% 240.00 13 13 0 42.16%
2 2In the money 0 32.22% 250.00 127 126 -1 38.06%
0 0In the money 0New 31.54% 260.00 726 724 -2 35.58%
18 18In the money 0 31.77% 270.00 77 78 +1 33.05%
14 12In the money -2 31.41% 280.00 73 74 +1 31.35%
25 25In the money 0 31.24% 290.00 11 11 0 31.39%
116 114In the money -2 30.93% 300.00NEAREST ATM 6 9 +3 30.56%
STOCK PRICE $304.45
75 76 +1 30.82% 310.00 4 4In the money 0 30.96%
261 309 +48 31.29% 320.00 2 2In the money 0 31.36%
87 88 +1 30.71% 330.00 1 1In the money 0 32.24%
4 15 +11 30.28% 340.00 0 0In the money 0New 31.45%
21 21 0 30.67% 350.00 0 0In the money 0New 33.22%
10 10 0 32.03% 360.00 0 0In the money 0New 33.58%
0 0 0New 34.68% 370.00 0 0In the money 0New 35.47%
4 4 0 36.93% 380.00 0 0In the money 0New 36.48%
0 0 0New 39.42% 390.00 0 0In the money 0New 35.04%
0 0 0New 41.81% 400.00 0 0In the money 0New 36.04%
3 3 0 44.38% 410.00 0 0In the money 0New 38.97%
0 0 0New 46.99% 420.00 0 0In the money 0New 41.82%
0 0 0New 49.48% 430.00 0 0In the money 0New 45.68%
0 0 0New 51.86% 440.00 0 0In the money 0New 50.26%
0 0 0New 54.36% 450.00 0 0In the money 0New 49.94%
0 0 0New 56.79% 460.00 0 0In the money 0New 49.32%
0 0 0New 55.74% 470.00 0 0In the money 0New 58.01%
Jan 15, 2027EXPIRATION66 contracts / 33 strikes
SAVED STOCK PRICE$304.45Nearest ATM strike $300.00
Jump to ATM
AON option chain expiring 2027-01-15, open interest on 2026-10-23 compared with 2026-10-21
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
0 0In the money 0New 51.01% 185.00 2 2 0 60.93%
0 0In the money 0New 49.42% 190.00 0 0 0New 58.39%
0 0In the money 0New 47.76% 195.00 2 2 0 55.89%
28 28In the money 0 46.07% 200.00 1 1 0 53.44%
0 0In the money 0New 43.69% 210.00 2 2 0 48.63%
1 1In the money 0 39.48% 220.00 43 43 0 44.30%
2 2In the money 0 34.91% 230.00 19 19 0 40.29%
5 3In the money -2 33.29% 240.00 46 46 0 36.74%
3 3In the money 0 33.99% 250.00 295 296 +1 34.69%
5 5In the money 0 32.01% 260.00 82 83 +1 31.95%
77 77In the money 0 30.66% 270.00 96 96 0 31.17%
74 73In the money -1 31.06% 280.00 125 125 0 31.30%
20 20In the money 0 30.64% 290.00 254 254 0 29.53%
131 131In the money 0 29.46% 300.00NEAREST ATM 27 27 0 30.86%
STOCK PRICE $304.45
37 46 +9 30.60% 310.00 85 85In the money 0 30.86%
247 250 +3 29.89% 320.00 24 23In the money -1 29.91%
50 93 +43 29.68% 330.00 35 35In the money 0 29.73%
194 197 +3 29.19% 340.00 42 42In the money 0 29.74%
160 236 +76 29.44% 350.00 1 1In the money 0 29.81%
88 88 0 28.85% 360.00 5 5In the money 0 30.86%
158 157 -1 29.78% 370.00 0 0In the money 0New 32.30%
328 328 0 31.54% 380.00 0 0In the money 0New 33.48%
128 128 0 33.40% 390.00 0 0In the money 0New 31.93%
256 256 0 35.24% 400.00 0 0In the money 0New 33.37%
95 95 0 37.19% 410.00 0 0In the money 0New 34.15%
121 121 0 39.09% 420.00 0 0In the money 0New 36.59%
39 39 0 41.02% 430.00 0 0In the money 0New 38.96%
48 48 0 43.01% 440.00 0 0In the money 0New 41.28%
9 9 0 44.74% 450.00 0 0In the money 0New 46.00%
9 9 0 46.74% 460.00 0 0In the money 0New 43.24%
2 2 0 48.48% 470.00 0 0In the money 0New 50.35%
1 1 0 50.16% 480.00 0 0In the money 0New 50.94%
5 5 0 51.98% 490.00 0 0In the money 0New 53.00%
Apr 16, 2027EXPIRATION72 contracts / 36 strikes
SAVED STOCK PRICE$304.45Nearest ATM strike $300.00
Jump to ATM
AON option chain expiring 2027-04-16, open interest on 2026-10-23 compared with 2026-10-21
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
0 1In the money +1New 33.08% 180.00 1 1 0 37.56%
1 1In the money 0 36.48% 185.00 1 1 0 42.30%
2 2In the money 0 35.25% 190.00 6 6 0 42.63%
3 3In the money 0 29.96% 195.00 4 4 0 40.83%
0 0In the money 0New 30.54% 200.00 1 1 0 37.93%
1 1In the money 0 31.36% 210.00 12 12 0 37.17%
3 3In the money 0 32.57% 220.00 11 11 0 34.80%
0 0In the money 0New 32.01% 230.00 8 8 0 33.31%
3 3In the money 0 32.58% 240.00 19 19 0 32.50%
17 13In the money -4 31.17% 250.00 26 26 0 32.05%
1 1In the money 0 31.68% 260.00 26 26 0 31.75%
41 38In the money -3 31.12% 270.00 28 28 0 31.27%
51 52In the money +1 31.00% 280.00 14 17 +3 30.92%
52 52In the money 0 30.44% 290.00 16 16 0 30.58%
44 44In the money 0 30.35% 300.00NEAREST ATM 9 21 +12 30.22%
STOCK PRICE $304.45
246 243 -3 30.07% 310.00 52 52In the money 0 30.07%
47 61 +14 30.04% 320.00 21 21In the money 0 30.67%
101 101 0 29.02% 330.00 30 30In the money 0 30.43%
37 37 0 28.71% 340.00 0 0In the money 0New 30.02%
16 19 +3 29.26% 350.00 4 4In the money 0 29.86%
21 21 0 28.75% 360.00 0 0In the money 0New 29.78%
1 1 0 28.42% 370.00 0 0In the money 0New 29.88%
34 34 0 27.66% 380.00 0 0In the money 0New 29.80%
48 48 0 28.57% 390.00 0 0In the money 0New 29.49%
11 11 0 27.97% 400.00 0 0In the money 0New 31.67%
37 37 0 27.76% 410.00 0 0In the money 0New 33.57%
2 2 0 29.03% 420.00 0 0In the money 0New 35.18%
2 2 0 27.07% 430.00 0 0In the money 0New 35.39%
1 1 0 30.32% 440.00 0 0In the money 0New 37.81%
1 1 0 31.27% 450.00 0 0In the money 0New 34.95%
0 0 0New 32.36% 460.00 0 0In the money 0New 36.68%
0 0 0New 27.76% 470.00 0 0In the money 0New 41.01%
1 1 0 34.43% 480.00 0 0In the money 0New 42.23%
0 0 0New 35.56% 490.00 0 0In the money 0New 43.39%
1 1 0 36.66% 500.00 0 0In the money 0New 43.20%
6 6 0 35.26% 520.00 0 0In the money 0New 46.25%

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.

←→ Saved days

Contract OI history

Open full view