OI update signal: Not confirmed MSFT / AAPL · Checked Oct 23, 09:56 EDT
The latest collection has not completed. Some symbols may not be updated yet.
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

MKSI

Daily option chain

Daily open interest

vs Oct 16, 2026

Saved stock price: $215.80 · Expirations before Oct 21, 2026 hidden automatically.

ITM In the money Unshaded: out of the money ATM Strike equals stock price Based on the saved stock price
792 contracts / 8 expirationsClick OI for history
Nov 20, 2026EXPIRATION68 contracts / 34 strikes
SAVED STOCK PRICE$215.80Nearest ATM strike $220.00
Jump to ATM
MKSI option chain expiring 2026-11-20, open interest on 2026-10-21 compared with 2026-10-16
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
0 0In the money 0New 92.19% 140.00 0 0 0New 82.00%
0 0In the money 0New 88.27% 145.00 0 0 0New 92.97%
0 0In the money 0New 84.13% 150.00 4 4 0 87.57%
0 0In the money 0New 81.19% 155.00 0 0 0New 82.85%
0 0In the money 0New 79.55% 160.00 3 3 0 77.74%
0 0In the money 0New 76.12% 165.00 2 2 0 74.47%
0 0In the money 0New 76.69% 170.00 1 1 0 71.73%
1 2In the money +1 71.40% 175.00 1 1 0 70.06%
0 0In the money 0New 71.53% 180.00 9 9 0 70.68%
0 0In the money 0New 68.98% 185.00 1 17 +16 69.84%
1 1In the money 0 70.92% 190.00 0 17 +17New 67.48%
0 2In the money +2New 69.22% 195.00 113 326 +213 66.39%
1 64In the money +63 66.22% 200.00 9 146 +137 66.67%
0 18In the money +18New 67.89% 210.00 23 109 +86 66.29%
STOCK PRICE $215.80
6 32 +26 66.26% 220.00NEAREST ATM 228 229In the money +1 67.65%
110 277 +167 65.77% 230.00 43 42In the money -1 65.40%
776 792 +16 65.69% 240.00 619 619In the money 0 65.17%
54 55 +1 64.80% 250.00 118 119In the money +1 63.19%
179 179 0 66.80% 260.00 123 121In the money -2 66.31%
19 20 +1 65.45% 270.00 20 20In the money 0 63.56%
169 173 +4 62.51% 280.00 103 99In the money -4 63.95%
34 325 +291 70.73% 290.00 5 4In the money -1 65.73%
522 522 0 78.70% 300.00 8 8In the money 0 65.38%
13 12 -1 78.89% 310.00 0 0In the money 0New 67.51%
86 86 0 83.48% 320.00 1 1In the money 0 69.56%
9 9 0 89.08% 330.00 2 0In the money -2 0.00%
17 16 -1 91.08% 340.00 1 0In the money -1 0.00%
6 6 0 95.56% 350.00 0 0In the money 0New 78.57%
0 0 0New 99.48% 360.00 0 0In the money 0New 77.38%
0 0 0New 103.61% 370.00 0 0In the money 0New 81.14%
21 21 0 107.18% 380.00 0 0In the money 0New 84.79%
3 3 0 111.01% 390.00 0 0In the money 0New 88.34%
0 0 0New 114.28% 400.00 0 0In the money 0New 91.80%
0 0 0New 117.85% 410.00 0 0In the money 0New 95.17%
Dec 18, 2026EXPIRATION102 contracts / 51 strikes
SAVED STOCK PRICE$215.80Nearest ATM strike $220.00
Jump to ATM
MKSI option chain expiring 2026-12-18, open interest on 2026-10-21 compared with 2026-10-16
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
2 2In the money 0 79.32% 130.00 0 0 0New 82.01%
9 9In the money 0 76.54% 135.00 7 5 -2 78.11%
22 22In the money 0 73.55% 140.00 11 14 +3 74.77%
1 1In the money 0 71.89% 145.00 0 4 +4New 70.84%
2 2In the money 0 71.45% 150.00 6 6 0 67.82%
1 1In the money 0 69.93% 155.00 6 6 0 65.89%
1 1In the money 0 68.59% 160.00 24 26 +2 68.24%
1 1In the money 0 67.61% 165.00 1 1 0 66.06%
1 1In the money 0 67.10% 170.00 24 24 0 64.48%
0 0In the money 0New 66.41% 175.00 0 0 0New 64.60%
1 1In the money 0 65.35% 180.00 1 1 0 63.41%
1 1In the money 0 63.96% 185.00 4 10 +6 62.50%
50 50In the money 0 63.01% 190.00 6 12 +6 61.94%
1 1In the money 0 61.69% 195.00 55 65 +10 60.79%
2 2In the money 0 63.44% 200.00 5 41 +36 61.39%
1 407In the money +406 62.25% 210.00 76 108 +32 60.96%
STOCK PRICE $215.80
4 188 +184 61.85% 220.00NEAREST ATM 89 94In the money +5 61.94%
351 354 +3 61.16% 230.00 10 17In the money +7 60.15%
13 13 0 59.36% 240.00 126 126In the money 0 60.07%
35 37 +2 59.63% 250.00 18 18In the money 0 60.14%
83 84 +1 59.71% 260.00 22 22In the money 0 59.24%
151 151 0 61.06% 270.00 363 363In the money 0 58.53%
154 156 +2 60.01% 280.00 94 94In the money 0 58.94%
152 153 +1 60.36% 290.00 18 18In the money 0 61.39%
43 34 -9 59.56% 300.00 60 60In the money 0 60.22%
8 8 0 62.11% 310.00 11 11In the money 0 59.63%
69 70 +1 64.23% 320.00 96 96In the money 0 60.20%
23 23 0 66.11% 330.00 1 1In the money 0 60.70%
823 823 0 69.17% 340.00 65 65In the money 0 59.04%
21 21 0 71.58% 350.00 7 2In the money -5 63.75%
3 3 0 73.77% 360.00 6 5In the money -1 63.56%
25 25 0 76.25% 370.00 0 0In the money 0New 68.54%
79 78 -1 78.66% 380.00 30 0In the money -30 71.52%
6 6 0 80.85% 390.00 0 0In the money 0New 74.41%
42 42 0 82.98% 400.00 0 0In the money 0New 75.19%
52 52 0 85.57% 410.00 6 0In the money -6 77.90%
4 5 +1 87.77% 420.00 0 0In the money 0New 80.55%
82 82 0 89.87% 430.00 0 0In the money 0New 83.13%
5 5 0 92.22% 440.00 0 0In the money 0New 85.65%
23 23 0 94.16% 450.00 0 0In the money 0New 90.29%
11 11 0 96.38% 460.00 0 0In the money 0New 92.72%
1 1 0 98.18% 470.00 0 0In the money 0New 92.88%
0 0 0New 100.27% 480.00 0 0In the money 0New 97.42%
503 503 0 102.31% 490.00 0 0In the money 0New 97.44%
29 29 0 104.29% 500.00 0 0In the money 0New 99.65%
2 2 0 107.74% 520.00 0 0In the money 0New 103.94%
1 1 0 111.37% 540.00 0 0In the money 0New 108.06%
1 1 0 114.85% 560.00 0 0In the money 0New 114.44%
2 2 0 118.18% 580.00 0 0In the money 0New 0.00%
2 2 0 121.37% 600.00 0 0In the money 0New 0.00%
Showing strikes 1–50 of 51
Jan 15, 2027EXPIRATION104 contracts / 52 strikes
SAVED STOCK PRICE$215.80Nearest ATM strike $220.00
Jump to ATM
MKSI option chain expiring 2027-01-15, open interest on 2026-10-21 compared with 2026-10-16
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
0 0In the money 0New 70.68% 125.00 2 2 0 74.48%
7 7In the money 0 69.06% 130.00 26 26 0 71.02%
14 14In the money 0 67.13% 135.00 25 25 0 68.03%
0 0In the money 0New 66.16% 140.00 0 0 0New 64.18%
4 4In the money 0 64.39% 145.00 0 0 0New 61.56%
3 3In the money 0 62.98% 150.00 6 6 0 63.98%
1 1In the money 0 62.61% 155.00 0 0 0New 61.75%
1 1In the money 0 61.22% 160.00 0 0 0New 61.98%
1 1In the money 0 61.25% 165.00 0 4 +4New 61.28%
1 1In the money 0 59.71% 170.00 3 3 0 60.54%
16 16In the money 0 59.69% 175.00 0 0 0New 59.88%
2 2In the money 0 60.30% 180.00 6 9 +3 59.63%
4 4In the money 0 59.24% 185.00 8 9 +1 59.41%
32 42In the money +10 59.56% 190.00 0 8 +8New 58.54%
0 0In the money 0New 58.28% 195.00 4 39 +35 59.35%
14 14In the money 0 58.24% 200.00 14 37 +23 58.84%
0 185In the money +185New 58.14% 210.00 6 8 +2 57.85%
STOCK PRICE $215.80
46 82 +36 57.86% 220.00NEAREST ATM 110 123In the money +13 58.26%
40 86 +46 57.93% 230.00 16 18In the money +2 58.15%
73 73 0 57.33% 240.00 8 9In the money +1 57.00%
69 69 0 56.88% 250.00 62 62In the money 0 57.46%
13 13 0 57.00% 260.00 63 63In the money 0 57.90%
107 107 0 56.69% 270.00 5 5In the money 0 57.31%
56 56 0 57.11% 280.00 5 4In the money -1 57.88%
6 6 0 57.14% 290.00 7 7In the money 0 57.62%
10 10 0 56.40% 300.00 0 0In the money 0New 58.07%
46 46 0 58.17% 310.00 0 0In the money 0New 58.28%
7 6 -1 56.06% 320.00 6 5In the money -1 58.34%
2 2 0 58.27% 330.00 0 0In the money 0New 59.03%
12 12 0 57.96% 340.00 0 0In the money 0New 59.33%
22 22 0 60.58% 350.00 1 1In the money 0 59.62%
5 5 0 61.99% 360.00 0 0In the money 0New 61.82%
9 9 0 64.15% 370.00 0 0In the money 0New 63.86%
77 77 0 66.19% 380.00 1 0In the money -1 65.57%
2 2 0 67.91% 390.00 0 0In the money 0New 65.19%
35 35 0 69.73% 400.00 0 0In the money 0New 67.61%
4 4 0 71.44% 410.00 0 0In the money 0New 69.97%
5 5 0 73.30% 420.00 0 0In the money 0New 73.86%
0 0 0New 75.32% 430.00 0 0In the money 0New 74.50%
5 5 0 76.80% 440.00 0 0In the money 0New 76.68%
17 17 0 78.44% 450.00 0 0In the money 0New 80.44%
7 7 0 80.01% 460.00 0 0In the money 0New 80.89%
2 2 0 81.53% 470.00 0 0In the money 0New 82.93%
4 4 0 83.27% 480.00 0 0In the money 0New 84.92%
4 4 0 84.96% 490.00 0 0In the money 0New 86.87%
29 29 0 86.33% 500.00 0 0In the money 0New 88.78%
1 1 0 89.21% 520.00 0 0In the money 0New 95.57%
8 8 0 92.23% 540.00 0 0In the money 0New 96.04%
2 2 0 95.13% 560.00 0 0In the money 0New 99.47%
4 4 0 97.55% 580.00 0 0In the money 0New 102.78%
Showing strikes 1–50 of 52
Feb 19, 2027EXPIRATION108 contracts / 54 strikes
SAVED STOCK PRICE$215.80Nearest ATM strike $220.00
Jump to ATM
MKSI option chain expiring 2027-02-19, open interest on 2026-10-21 compared with 2026-10-16
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
0 0In the money 0New 68.31% 115.00 0 0 0New 71.10%
0 0In the money 0New 67.99% 120.00 0 0 0New 67.51%
0 0In the money 0New 66.31% 125.00 20 20 0 64.68%
0 0In the money 0New 64.79% 130.00 20 22 +2 64.27%
3 3In the money 0 65.49% 135.00 10 14 +4 62.89%
1 1In the money 0 64.41% 140.00 2 2 0 64.68%
1 1In the money 0 64.45% 145.00 11 11 0 63.97%
5 5In the money 0 63.78% 150.00 15 15 0 63.75%
7 7In the money 0 63.33% 155.00 0 0 0New 63.58%
0 0In the money 0New 63.38% 160.00 10 10 0 62.80%
2 2In the money 0 62.84% 165.00 19 19 0 62.04%
0 0In the money 0New 62.56% 170.00 0 5 +5New 62.61%
2 2In the money 0 62.48% 175.00 2 2 0 62.02%
0 0In the money 0New 62.05% 180.00 0 0 0New 62.04%
0 0In the money 0New 62.06% 185.00 1 1 0 61.82%
0 0In the money 0New 61.72% 190.00 7 7 0 61.28%
1 1In the money 0 61.96% 195.00 42 42 0 61.13%
1 1In the money 0 61.37% 200.00 2 2 0 60.80%
0 0In the money 0New 61.20% 210.00 0 0 0New 60.44%
STOCK PRICE $215.80
2 2 0 60.58% 220.00NEAREST ATM 0 0In the money 0New 60.11%
3 3 0 60.79% 230.00 2 2In the money 0 60.02%
20 20 0 60.26% 240.00 1 1In the money 0 60.22%
6 6 0 60.23% 250.00 1 1In the money 0 59.39%
2 2 0 58.46% 260.00 4 4In the money 0 59.59%
77 77 0 59.54% 270.00 2 2In the money 0 59.82%
6 6 0 58.95% 280.00 5 5In the money 0 59.58%
1 1 0 57.95% 290.00 5 5In the money 0 58.82%
3 7 +4 59.11% 300.00 56 56In the money 0 59.44%
6 10 +4 58.83% 310.00 0 0In the money 0New 58.38%
22 22 0 59.34% 320.00 0 0In the money 0New 58.66%
8 8 0 58.35% 330.00 3 3In the money 0 58.72%
9 9 0 57.87% 340.00 1 1In the money 0 58.99%
229 219 -10 59.14% 350.00 3 3In the money 0 59.46%
2 2 0 57.74% 360.00 3 3In the money 0 59.63%
5 5 0 58.62% 370.00 1 1In the money 0 58.99%
4 4 0 59.25% 380.00 1 1In the money 0 59.77%
83 83 0 60.11% 390.00 0 0In the money 0New 59.41%
19 19 0 60.62% 400.00 0 0In the money 0New 61.56%
0 0 0New 61.98% 410.00 0 0In the money 0New 63.65%
2 31 +29 63.42% 420.00 0 0In the money 0New 65.69%
0 0 0New 64.42% 430.00 0 0In the money 0New 67.67%
2 2 0 65.70% 440.00 0 0In the money 0New 69.60%
240 240 0 66.92% 450.00 0 0In the money 0New 71.49%
1 19 +18 68.07% 460.00 0 0In the money 0New 73.33%
0 0 0New 69.37% 470.00 0 0In the money 0New 75.14%
0 0 0New 70.63% 480.00 0 0In the money 0New 76.90%
324 324 0 71.84% 490.00 0 0In the money 0New 78.62%
11 11 0 73.01% 500.00 0 0In the money 0New 80.31%
3 3 0 75.46% 520.00 0 0In the money 0New 83.59%
0 0 0New 77.76% 540.00 0 0In the money 0New 86.73%
Showing strikes 1–50 of 54
Apr 16, 2027EXPIRATION86 contracts / 43 strikes
SAVED STOCK PRICE$215.80Nearest ATM strike $220.00
Jump to ATM
MKSI option chain expiring 2027-04-16, open interest on 2026-10-21 compared with 2026-10-16
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
0 0In the money 0New 68.39% 110.00 0 0 0New 66.70%
0 0In the money 0New 67.45% 115.00 0 0 0New 65.08%
0 0In the money 0New 66.50% 120.00 0 4 +4New 65.62%
0 0In the money 0New 65.29% 125.00 96 97 +1 63.79%
0 0In the money 0New 64.09% 130.00 0 0 0New 63.02%
0 0In the money 0New 63.72% 135.00 0 0 0New 63.60%
1 1In the money 0 63.92% 140.00 1 1 0 62.20%
0 0In the money 0New 62.55% 145.00 0 0 0New 62.50%
0 0In the money 0New 62.11% 150.00 0 0 0New 61.93%
0 0In the money 0New 61.97% 155.00 2 2 0 60.67%
1 1In the money 0 61.53% 160.00 2 2 0 61.12%
0 0In the money 0New 60.83% 165.00 0 0 0New 61.07%
0 0In the money 0New 61.10% 170.00 0 0 0New 59.94%
0 0In the money 0New 60.84% 175.00 0 0 0New 60.40%
1 1In the money 0 60.13% 180.00 1 1 0 59.70%
0 0In the money 0New 60.66% 185.00 0 0 0New 59.42%
0 0In the money 0New 60.95% 190.00 0 0 0New 59.59%
2 2In the money 0 59.53% 195.00 0 0 0New 58.99%
0 0In the money 0New 59.35% 200.00 3 3 0 58.98%
0 1In the money +1New 59.64% 210.00 1 1 0 59.37%
STOCK PRICE $215.80
0 1 +1New 58.90% 220.00NEAREST ATM 0 0In the money 0New 58.45%
1 1 0 59.40% 230.00 19 19In the money 0 58.63%
1 5 +4 58.84% 240.00 1 5In the money +4 59.09%
0 0 0New 58.58% 250.00 0 0In the money 0New 58.91%
5 6 +1 58.82% 260.00 0 0In the money 0New 57.77%
0 1 +1New 58.48% 270.00 0 0In the money 0New 58.85%
1 1 0 58.98% 280.00 1 1In the money 0 58.25%
0 0 0New 58.86% 290.00 2 2In the money 0 58.77%
0 0 0New 58.78% 300.00 0 0In the money 0New 57.66%
3 3 0 58.75% 310.00 0 0In the money 0New 58.46%
2 2 0 58.86% 320.00 0 0In the money 0New 58.07%
8 10 +2 58.29% 330.00 0 0In the money 0New 58.18%
1 1 0 58.97% 340.00 0 0In the money 0New 58.28%
1 1 0 58.94% 350.00 0 0In the money 0New 58.57%
0 5 +5New 58.23% 360.00 0 0In the money 0New 58.64%
0 0 0New 58.75% 370.00 0 0In the money 0New 59.65%
1 1 0 58.91% 380.00 0 0In the money 0New 59.08%
0 0 0New 59.50% 390.00 0 0In the money 0New 58.85%
0 0 0New 59.22% 400.00 0 0In the money 0New 59.29%
0 0 0New 59.24% 410.00 0 0In the money 0New 59.71%
0 0 0New 59.68% 420.00 0 0In the money 0New 59.51%
1 1 0 59.73% 430.00 0 0In the money 0New 61.28%
1 1 0 59.82% 440.00 0 0In the money 0New 62.40%
May 21, 2027EXPIRATION108 contracts / 54 strikes
SAVED STOCK PRICE$215.80Nearest ATM strike $220.00
Jump to ATM
MKSI option chain expiring 2027-05-21, open interest on 2026-10-21 compared with 2026-10-16
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
0 0In the money 0New 65.57% 115.00 0 0 0New 63.49%
0 0In the money 0New 64.24% 120.00 0 0 0New 65.25%
0 0In the money 0New 63.62% 125.00 10 10 0 63.61%
2 2In the money 0 62.72% 130.00 10 10 0 62.84%
22 22In the money 0 62.15% 135.00 2 2 0 62.35%
1 1In the money 0 61.80% 140.00 0 0 0New 62.08%
0 0In the money 0New 61.77% 145.00 0 0 0New 61.24%
1 1In the money 0 60.76% 150.00 0 1 +1New 60.73%
0 0In the money 0New 60.48% 155.00 0 0 0New 60.39%
0 0In the money 0New 60.44% 160.00 0 0 0New 60.16%
0 0In the money 0New 59.57% 165.00 0 0 0New 60.24%
1 1In the money 0 59.93% 170.00 0 0 0New 59.86%
0 0In the money 0New 59.62% 175.00 0 0 0New 59.37%
5 5In the money 0 59.58% 180.00 0 0 0New 58.86%
0 0In the money 0New 59.06% 185.00 0 0 0New 58.76%
1 1In the money 0 59.36% 190.00 0 0 0New 58.62%
0 0In the money 0New 59.45% 195.00 0 0 0New 58.80%
1 1In the money 0 58.50% 200.00 6 6 0 58.88%
0 0In the money 0New 59.19% 210.00 6 6 0 58.71%
STOCK PRICE $215.80
4 4 0 58.89% 220.00NEAREST ATM 244 244In the money 0 58.69%
6 6 0 59.01% 230.00 5 5In the money 0 59.11%
4 4 0 58.97% 240.00 13 16In the money +3 58.81%
23 25 +2 58.57% 250.00 0 0In the money 0New 58.73%
41 42 +1 58.85% 260.00 0 0In the money 0New 58.54%
36 36 0 58.78% 270.00 1 1In the money 0 58.49%
12 12 0 58.37% 280.00 2 2In the money 0 57.91%
85 85 0 58.62% 290.00 0 0In the money 0New 58.88%
17 17 0 58.53% 300.00 4 4In the money 0 58.74%
11 16 +5 58.53% 310.00 0 6In the money +6New 58.63%
17 17 0 58.21% 320.00 0 0In the money 0New 58.53%
0 0 0New 58.03% 330.00 0 10In the money +10New 58.36%
0 0 0New 58.16% 340.00 0 0In the money 0New 58.80%
1 1 0 58.34% 350.00 0 0In the money 0New 58.84%
1 1 0 58.30% 360.00 0 0In the money 0New 58.80%
0 0 0New 58.35% 370.00 0 0In the money 0New 59.26%
0 0 0New 58.06% 380.00 0 0In the money 0New 59.30%
0 0 0New 58.70% 390.00 0 0In the money 0New 59.71%
15 63 +48 58.52% 400.00 10 10In the money 0 59.57%
0 0 0New 58.71% 410.00 0 0In the money 0New 60.50%
10 10 0 59.66% 420.00 0 0In the money 0New 60.07%
1 1 0 59.74% 430.00 0 0In the money 0New 60.78%
0 0 0New 60.44% 440.00 0 0In the money 0New 62.06%
0 0 0New 59.86% 450.00 0 0In the money 0New 62.32%
0 0 0New 59.07% 460.00 0 0In the money 0New 63.40%
0 0 0New 61.03% 470.00 0 0In the money 0New 65.39%
1 1 0 60.82% 480.00 0 0In the money 0New 65.89%
6 6 0 61.68% 490.00 0 0In the money 0New 67.34%
13 13 0 61.35% 500.00 0 0In the money 0New 68.76%
3 3 0 62.15% 520.00 0 0In the money 0New 71.51%
1 1 0 63.27% 540.00 0 0In the money 0New 74.15%
Showing strikes 1–50 of 54
Aug 20, 2027EXPIRATION108 contracts / 54 strikes
SAVED STOCK PRICE$215.80Nearest ATM strike $220.00
Jump to ATM
MKSI option chain expiring 2027-08-20, open interest on 2026-10-21 compared with 2026-10-16
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
0 0In the money 0New 63.25% 115.00 0 0 0New 62.84%
0 0In the money 0New 62.72% 120.00 0 0 0New 61.78%
0 0In the money 0New 62.70% 125.00 0 0 0New 61.50%
6 6In the money 0 62.37% 130.00 1 1 0 60.98%
0 0In the money 0New 61.21% 135.00 0 0 0New 60.91%
0 0In the money 0New 61.16% 140.00 0 0 0New 60.48%
0 0In the money 0New 60.88% 145.00 1 1 0 60.08%
0 0In the money 0New 60.42% 150.00 0 0 0New 59.73%
0 0In the money 0New 60.80% 155.00 0 0 0New 59.31%
1 1In the money 0 60.04% 160.00 2 2 0 59.64%
0 0In the money 0New 60.03% 165.00 0 0 0New 59.94%
0 0In the money 0New 59.84% 170.00 0 0 0New 59.61%
0 0In the money 0New 59.50% 175.00 0 0 0New 59.29%
0 0In the money 0New 59.03% 180.00 0 0 0New 58.92%
0 0In the money 0New 59.21% 185.00 6 6 0 58.95%
0 0In the money 0New 59.24% 190.00 2 2 0 58.83%
0 0In the money 0New 59.13% 195.00 0 0 0New 58.94%
0 0In the money 0New 58.89% 200.00 0 0 0New 58.91%
0 0In the money 0New 58.74% 210.00 8 8 0 58.54%
STOCK PRICE $215.80
2 2 0 58.22% 220.00NEAREST ATM 0 0In the money 0New 58.61%
0 0 0New 58.25% 230.00 0 0In the money 0New 58.31%
0 0 0New 58.22% 240.00 0 0In the money 0New 58.53%
1 1 0 58.16% 250.00 1 1In the money 0 58.31%
3 3 0 58.08% 260.00 0 0In the money 0New 58.12%
5 5 0 57.96% 270.00 1 1In the money 0 58.24%
4 4 0 57.98% 280.00 1 1In the money 0 58.03%
16 16 0 58.01% 290.00 0 0In the money 0New 58.22%
1 1 0 57.79% 300.00 2 2In the money 0 58.06%
1 7 +6 58.01% 310.00 0 0In the money 0New 58.03%
0 0 0New 57.95% 320.00 1 1In the money 0 58.45%
4 4 0 58.17% 330.00 0 0In the money 0New 58.23%
0 0 0New 58.15% 340.00 0 0In the money 0New 58.58%
4 4 0 57.86% 350.00 0 0In the money 0New 58.27%
0 0 0New 57.44% 360.00 0 0In the money 0New 58.59%
0 0 0New 58.05% 370.00 0 0In the money 0New 58.50%
10 10 0 57.70% 380.00 0 0In the money 0New 59.12%
0 0 0New 58.04% 390.00 0 0In the money 0New 58.91%
21 21 0 57.46% 400.00 0 0In the money 0New 59.27%
3 3 0 57.25% 410.00 0 0In the money 0New 58.61%
0 0 0New 57.98% 420.00 0 0In the money 0New 58.90%
0 0 0New 57.94% 430.00 0 0In the money 0New 60.14%
0 0 0New 57.55% 440.00 0 0In the money 0New 59.78%
0 0 0New 57.80% 450.00 0 0In the money 0New 59.58%
0 0 0New 57.14% 460.00 0 0In the money 0New 60.76%
2 2 0 57.68% 470.00 0 0In the money 0New 59.83%
1 1 0 57.65% 480.00 0 0In the money 0New 60.81%
0 0 0New 58.32% 490.00 0 0In the money 0New 61.76%
3 3 0 58.10% 500.00 0 0In the money 0New 63.03%
0 0 0New 58.31% 520.00 0 0In the money 0New 65.49%
6 6 0 57.37% 540.00 0 0In the money 0New 67.86%
Showing strikes 1–50 of 54
Nov 19, 2027EXPIRATION108 contracts / 54 strikes
SAVED STOCK PRICE$215.80Nearest ATM strike $220.00
Jump to ATM
MKSI option chain expiring 2027-11-19, open interest on 2026-10-21 compared with 2026-10-16
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
0 0In the money 0New 63.57% 115.00 0 0 0New 61.85%
0 0In the money 0New 63.05% 120.00 0 0 0New 61.28%
3 3In the money 0 62.94% 125.00 0 0 0New 61.79%
1 1In the money 0 62.62% 130.00 1 1 0 60.61%
0 0In the money 0New 62.14% 135.00 1 1 0 60.33%
0 0In the money 0New 61.52% 140.00 1 1 0 60.26%
0 0In the money 0New 60.79% 145.00 1 1 0 60.07%
1 1In the money 0 60.86% 150.00 10 10 0 59.67%
0 0In the money 0New 59.91% 155.00 0 0 0New 59.57%
0 0In the money 0New 59.71% 160.00 3 3 0 59.04%
2 2In the money 0 59.38% 165.00 1 1 0 59.08%
15 15In the money 0 59.69% 170.00 7 7 0 58.89%
15 15In the money 0 59.12% 175.00 0 0 0New 59.52%
0 0In the money 0New 59.18% 180.00 2 2 0 58.31%
1 1In the money 0 59.11% 185.00 0 0 0New 58.53%
0 0In the money 0New 58.94% 190.00 0 0 0New 58.26%
0 1In the money +1New 58.66% 195.00 0 0 0New 58.29%
25 25In the money 0 57.73% 200.00 6 6 0 58.18%
21 21In the money 0 57.65% 210.00 1 1 0 58.08%
STOCK PRICE $215.80
3 9 +6 58.18% 220.00NEAREST ATM 11 12In the money +1 57.97%
4 4 0 57.69% 230.00 2 3In the money +1 57.94%
12 21 +9 57.55% 240.00 3 3In the money 0 57.98%
81 81 0 57.80% 250.00 0 0In the money 0New 58.30%
34 35 +1 57.73% 260.00 3 3In the money 0 58.03%
23 23 0 57.76% 270.00 0 0In the money 0New 57.56%
28 28 0 57.79% 280.00 0 0In the money 0New 57.52%
1 1 0 57.90% 290.00 13 13In the money 0 57.53%
18 28 +10 57.82% 300.00 2 2In the money 0 57.59%
2 2 0 57.34% 310.00 14 14In the money 0 57.76%
9 9 0 58.18% 320.00 0 0In the money 0New 57.71%
3 3 0 57.77% 330.00 0 0In the money 0New 58.69%
2 2 0 57.85% 340.00 0 0In the money 0New 57.65%
5 5 0 58.17% 350.00 0 0In the money 0New 58.03%
2 2 0 58.05% 360.00 0 0In the money 0New 58.23%
6 6 0 58.12% 370.00 0 0In the money 0New 57.88%
3 3 0 58.08% 380.00 0 0In the money 0New 58.09%
3 3 0 57.92% 390.00 0 0In the money 0New 58.61%
7 8 +1 57.91% 400.00 0 0In the money 0New 58.54%
0 0 0New 57.81% 410.00 0 0In the money 0New 58.76%
3 3 0 58.33% 420.00 0 0In the money 0New 58.81%
0 0 0New 58.26% 430.00 0 0In the money 0New 59.23%
0 0 0New 58.41% 440.00 0 0In the money 0New 58.34%
15 15 0 58.09% 450.00 0 0In the money 0New 58.41%
0 0 0New 58.48% 460.00 0 0In the money 0New 59.74%
0 0 0New 58.48% 470.00 0 0In the money 0New 59.42%
0 0 0New 58.41% 480.00 0 0In the money 0New 58.79%
1 1 0 58.80% 490.00 0 0In the money 0New 60.01%
14 24 +10 59.50% 500.00 0 0In the money 0New 58.63%
0 0 0New 59.02% 520.00 0 0In the money 0New 60.90%
19 19 0 59.35% 540.00 0 0In the money 0New 63.09%
Showing strikes 1–50 of 54

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