Options Skew Analytics

CSCO option chain

Strikes around the forward, as they were quoted at the close

Data as of 24 September 2026 (end of day)

2026-09-25(1 day)ATM 31.66%±1.77skew +0.15
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
2022$9.00$11.25—$96.00—————
02$9.35$10.55—$97.00—————
113117$8.45$9.10—$98.00—————
022$6.15$8.50—$99.0064.21%$0.01$0.025222
40130$6.00$7.25—$100.0056.69%$0.01$0.022,712540
033$4.65$6.30—$101.0051.26%$0.01$0.03696309
48184$3.50$5.50—$102.0046.37%$0.02$0.04618129
031$2.79$4.20—$103.0041.91%$0.03$0.07878213
9248$2.35$3.25—$104.0036.51%$0.06$0.101,510368
225894$1.60$2.10—$105.00—————
524757$1.05$1.30—$106.0032.27%$0.31$0.501,432507
7451,224$0.53$0.6431.60%$107.00—$0.74$0.948702,757
1,110917$0.21$0.3132.12%$108.00—$1.41$1.621,27180
6935,015$0.07$0.1031.34%$109.00—$2.23$2.7547884
1,1233,281$0.02$0.0432.78%$110.00—$3.00$3.551,327911
—————$111.00—$4.05$5.10266406
—————$112.00—$4.85$6.00230359
—————$113.00—$5.65$8.101427
—————$114.00—$6.80$9.1040
—————$115.00—$7.80$9.6022
—————$116.00—$8.80$11.1002

Forward $106.74. The 25-delta put carries +0.15 volatility points over the 25-delta call.

2026-10-02(8 days)ATM 29.88%±4.71skew +1.35
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
1160$6.75$8.40—$99.00—————
1131$6.00$7.55—$100.0032.88%$0.18$0.2867430
1516$4.85$6.55—$101.0031.93%$0.28$0.364007
552$4.70$5.60—$102.0030.55%$0.39$0.46262263
16$4.10$4.70—$103.0030.78%$0.60$0.681,227192
4244$3.40$3.60—$104.0030.46%$0.86$0.93247261
43225$2.70$2.81—$105.0030.23%$1.20$1.25477311
352174$2.09$2.22—$106.0030.09%$1.61$1.67211127
359251$1.57$1.7129.72%$107.00—$2.12$2.27282151
249198$1.15$1.2529.19%$108.00—$2.73$2.8411522
82667$0.82$0.9129.05%$109.00—$3.40$3.951513
905908$0.57$0.6929.43%$110.00—$3.95$4.3050668
280576$0.39$0.5029.65%$111.00—$4.60$5.656424
227430$0.27$0.3429.76%$112.00—$5.25$7.05748
37704$0.18$0.2329.90%$113.00—$6.25$8.60340
—————$114.00—$7.20$9.45360
—————$115.00—$8.20$9.25680
—————$116.00—$9.15$11.45360
—————$117.00—$10.15$12.40220
6459$0.02$0.0633.55%$118.00—$11.15$13.30100
—————$119.00—$12.10$14.40100

Forward $106.52. The 25-delta put carries +1.35 volatility points over the 25-delta call.

2026-10-09(15 days)ATM 29.61%±6.40skew +1.59
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
0—$11.00$13.45—$94.00—————
01$6.75$8.55—$99.00—————
1011$5.90$7.65—$100.0031.74%$0.50$0.6128243
—————$101.0030.75%$0.64$0.7324144
20$5.00$6.05—$102.0030.55%$0.85$0.9459113
2810$4.60$5.10—$103.0030.59%$1.12$1.224434
118$3.60$4.60—$104.0031.59%$1.32$1.8312151
2774$3.25$3.75—$105.0030.89%$1.84$1.97213209
84363$2.69$3.05—$106.0032.07%$2.25$2.6515570
19661$2.21$2.4829.29%$107.00—$2.47$2.968357
942265$1.77$1.9828.85%$108.00—$3.30$3.85714
5695$1.39$1.6228.87%$109.00—$3.95$4.95354
258630$1.08$1.2528.53%$110.00—$4.65$5.25637
271941$0.86$1.0128.95%$111.00—$5.15$6.35293
337120$0.64$0.7928.87%$112.00—$5.60$7.85200
20284$0.41$0.5928.07%$113.00—$6.45$8.90300
1021,290$0.38$0.4929.48%$114.00—$7.40$9.7550
—————$115.00—$8.20$9.95380
352$0.17$0.2728.92%$116.00—$9.10$11.6020
—————$118.00—$11.00$12.65110
461,598$0.08$0.1330.47%$119.00—————

Forward $106.63. The 25-delta put carries +1.59 volatility points over the 25-delta call.

2026-10-16(22 days)ATM 29.50%±7.71skew +1.25
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01,779$8.80$10.15—$97.5032.06%$0.43$0.623,84643
02$8.55$9.75—$98.0032.18%$0.50$0.7123818
02$6.80$8.85—$99.0030.84%$0.62$0.763413
181,150$7.30$7.95—$100.0030.28%$0.82$0.875,523249
12$5.60$7.05—$101.0030.05%$1.02$1.098936
24$5.55$6.25—$102.0029.95%$1.27$1.365295
137$5.05$5.70—$103.0029.80%$1.58$1.6511374
0119$4.40$4.95—$104.0030.00%$1.92$2.0793150
1592,157$3.75$4.00—$105.0029.93%$2.32$2.486,001321
100288$3.25$3.45—$106.0029.72%$2.76$2.9263457
87353$2.73$2.9329.45%$107.00—$3.25$3.402000
6984$2.28$2.4829.29%$108.00—$3.80$4.10984
316422$1.91$2.0829.27%$109.00—$4.40$4.701032
5985,973$1.60$1.7329.34%$110.00—$4.85$5.257,793118
80214$1.29$1.4329.19%$111.00—$5.75$6.35111
1361,691$0.99$1.1528.69%$112.00—$6.40$7.05611
15195$0.84$0.9729.26%$113.00—$7.20$7.80121
32270$0.53$0.7828.20%$114.00—$8.05$8.6521
2837,789$0.54$0.6829.77%$115.00—$8.55$9.552,57841
78108$0.42$0.5529.78%$116.00—————
—————$117.00—$10.35$12.5590

Forward $106.50. The 25-delta put carries +1.25 volatility points over the 25-delta call.

2026-10-23(29 days)ATM 30.90%±9.28skew +0.61
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
4547$10.05$11.75—$96.00—————
11$9.05$11.20—$97.0033.39%$0.62$0.99131
01$7.65$10.30—$98.0031.25%$0.78$0.88471
20$7.30$9.25—$99.0030.89%$0.95$1.05241
241$7.10$8.30—$100.0030.61%$1.15$1.26186105
040$6.65$7.55—$101.0030.93%$1.25$1.754891
14$6.20$6.80—$102.0030.69%$1.71$1.851091
20$5.20$6.10—$103.0031.25%$1.91$2.4676131
211$4.90$5.65—$104.0031.79%$2.31$2.962431
572$4.20$4.85—$105.0031.90%$2.66$3.50571
14819$3.75$4.35—$106.0031.65%$3.15$3.90282
090$3.10$3.8030.89%$107.00—$3.50$4.40212
2644$2.82$3.2531.08%$108.00—$4.20$5.10110
025$2.47$2.7430.81%$109.00—$4.45$5.6580
133147$2.10$2.3630.65%$110.00—$5.45$6.602041
10270$1.76$2.0330.49%$111.00—$5.75$7.2092
1277$1.47$1.7230.31%$112.00—$6.85$8.5073
8544$1.24$1.4630.32%$113.00—$7.30$8.7562
136$1.04$1.2330.32%$114.00—————
2126$0.79$1.0529.97%$115.00—$8.65$10.0021
4017$0.60$0.8529.47%$116.00—$9.70$11.9520

Forward $106.50. The 25-delta put carries +0.61 volatility points over the 25-delta call.

2026-10-30(36 days)ATM 31.02%±10.38skew +1.41
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$9.30$11.15—$97.0032.64%$0.79$1.24201
—————$98.0032.17%$0.94$1.421072
—————$99.0031.88%$1.18$1.592624
0163$7.25$8.70—$100.0031.28%$1.34$1.8323414
12$7.25$7.95—$101.0030.27%$1.58$1.95310
—————$102.0032.13%$1.97$2.64240
—————$103.0032.10%$2.19$3.15230
0203$5.40$5.95—$104.0031.78%$2.67$3.40230
5151$4.80$5.30—$105.0029.85%$2.95$3.503212
538$4.25$4.75—$106.0031.93%$3.50$4.45101
1389$3.65$4.1531.02%$107.00—$3.95$5.1583
2137$3.30$3.7531.52%$108.00—$4.55$5.5050
013$2.60$3.2530.04%$109.00—$5.05$6.4060
19122$2.48$2.8530.87%$110.00—$5.45$6.90390
022$2.14$2.5130.82%$111.00—————
744$1.78$2.1730.40%$112.00—$6.85$8.60130
1623$1.57$1.8030.19%$113.00—$7.90$9.4010
118$1.22$1.6129.87%$114.00—$8.30$10.2010
4586$1.16$1.4030.59%$115.00—$9.10$10.85381
38$0.99$1.2030.60%$116.00—$9.85$11.9020
120$0.71$1.0029.70%$117.00—————

Forward $106.53. The 25-delta put carries +1.41 volatility points over the 25-delta call.

2026-11-20(57 days)ATM 39.62%±16.74skew +1.32
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$44.95$47.70—$60.00—————
12$40.00$42.50—$65.00—————
05$35.05$37.55—$70.00—————
03$30.15$32.75—$75.00—————
336$25.70$27.80—$80.00—————
311$21.20$23.10—$85.0042.32%$0.52$0.7171115
11108$17.35$18.60—$90.0041.40%$1.05$1.341,1199
038$12.85$14.55—$95.0040.65%$2.07$2.243,033157
51519$10.05$10.95—$100.0039.98%$3.50$3.704,209206
39698$7.45$7.75—$105.0039.76%$5.55$5.806,694258
3753,320$5.15$5.4539.55%$110.00—$8.20$8.303,70538
1803,845$3.45$3.6539.29%$115.00—$11.10$12.351,3102
1942,993$2.23$2.4239.33%$120.00—$14.85$16.2563829
804,376$1.44$1.5939.71%$125.00—$18.85$20.753110
751,702$0.85$1.0439.78%$130.00—$23.30$25.202760
153,152$0.57$0.6940.70%$135.00—$28.15$30.40100
262,004$0.30$0.4240.29%$140.00—————
014$0.01$0.0652.20%$185.00—————

Forward $106.94. The 25-delta put carries +1.32 volatility points over the 25-delta call.

2026-12-18(85 days)ATM 36.79%±19.06skew +0.99
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01,570$35.40$37.85—$70.00—————
01,305$33.15$35.35—$72.50—————
01,283$30.85$33.05—$75.0041.98%$0.23$0.324,33918
0322$28.35$30.80—$77.5041.56%$0.34$0.456,3562
11,498$26.45$28.50—$80.0040.64%$0.48$0.578,73516
0541$23.75$25.85—$82.5040.22%$0.64$0.811,16029
16,712$21.60$23.85—$85.0039.89%$0.90$1.083,24324
01,968$19.45$21.70—$87.5039.42%$1.17$1.4576028
01,297$17.85$19.50—$90.0039.16%$1.58$1.882,17728
0277$15.50$17.40—$92.5038.51%$2.12$2.261,70712
4897$14.50$15.45—$95.0038.03%$2.72$2.811,848264
0167$12.70$13.70—$97.5037.88%$3.40$3.602,87942
163,712$10.80$11.95—$100.0037.55%$4.25$4.404,084194
621,614$8.60$8.85—$105.0037.06%$6.30$6.455,86996
3373,992$6.25$6.5036.75%$110.00—$8.95$9.104,05139
604,040$4.45$4.6536.61%$115.00—$12.15$12.554,1670
1673,156$3.10$3.3036.69%$120.00—$15.50$16.601,0670
732,135$2.15$2.3036.89%$125.00—$19.50$21.208520
1792,024$1.36$1.5636.57%$130.00—$23.75$25.755160
61212,125$0.95$1.0737.07%$135.00—$28.35$30.402520
1726$0.49$0.7836.75%$140.00—$33.15$35.25390

Forward $107.37. The 25-delta put carries +0.99 volatility points over the 25-delta call.

How to read this

Calls on the left, puts on the right, the strike between them — the layout every chain uses. Each block is one expiration, and the heading carries its days to expiry, the at-the-money implied volatility, and the one-standard-deviation move that volatility implies over that time.

Only the 21 strikes nearest the forward are stored, which is the part of the board that carries the volume. The shaded side is in the money: below the forward for calls, above it for puts.

Implied volatility is shown on the out-of-the-money side only. An in-the-money option is nearly all intrinsic value quoted on a wide market, so a volatility solved from it would look authoritative and mean very little. The price is still shown, because the price is real; the blank is deliberate.