Options Skew Analytics

WDC option chain

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

Data as of 9 November 2026 (end of day)

2026-11-13(4 days)ATM 103.61%±31.37skew +8.38
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
62125$28.05$28.95—$265.00110.27%$3.90$4.3511455
310$25.95$27.05—$267.50109.33%$4.45$4.9011841
81150$24.20$25.15—$270.00108.58%$5.05$5.55394230
2060$22.40$23.30—$272.50107.96%$5.75$6.253342
5755$20.55$21.70—$275.00107.17%$6.50$7.0041131
2223$18.70$19.80—$277.50106.68%$7.35$7.85106188
153157$17.30$18.30—$280.00105.99%$8.20$8.80363409
6734$15.85$16.70—$282.50105.31%$9.15$9.8028880
131120$14.40$15.50—$285.00104.21%$10.15$10.8038694
8946$13.05$13.85—$287.50104.55%$11.35$12.10233124
189168$11.80$12.60104.03%$290.00—$12.55$13.3519359
182104$10.65$11.25103.06%$292.50—$13.80$14.651742
323402$9.60$10.35103.72%$295.00—$15.20$16.0515985
209100$8.50$9.20102.49%$297.50—$16.60$17.55135
516423$7.65$8.20102.30%$300.00—$17.00$18.909465
7928$6.75$7.35101.91%$302.50—$19.60$20.502139
191122$6.00$6.55101.77%$305.00—$21.40$22.35428
6250$5.20$5.70100.53%$307.50—$23.20$24.00342
278131$4.60$5.00100.30%$310.00—$25.10$25.8528641
13790$4.00$4.45100.20%$312.50—$26.90$27.706331
32634$3.65$3.85100.59%$315.00—$28.85$29.801661

Forward $289.25. The 25-delta put carries +8.38 volatility points over the 25-delta call.

2026-11-20(11 days)ATM 90.13%±45.30skew +7.09
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
419$32.15$35.65—$265.0094.71%$8.15$8.752530
18$29.55$33.85—$267.5094.36%$8.95$9.501043
44135$29.25$30.05—$270.0093.74%$9.70$10.30924131
60$27.45$28.45—$272.5093.26%$10.50$11.205030
105$25.90$26.85—$275.0092.79%$11.40$12.101819
—————$277.5092.45%$12.40$13.0521
63139$23.00$23.75—$280.0092.10%$13.40$14.1085678
410$21.35$22.30—$282.5091.73%$14.45$15.2010235
3121$20.05$20.90—$285.0091.34%$15.55$16.351308
132$18.80$19.60—$287.5090.94%$16.75$17.50111
69116$17.55$18.3090.64%$290.00—$17.95$18.804,3964,571
320$16.40$17.0590.30%$292.50—$19.20$20.10175
1584$15.10$15.9089.58%$295.00—$20.50$21.501573
3014$14.25$14.9090.09%$297.50—————
180512$13.10$13.7589.20%$300.00—$23.45$24.301,86040
019$12.05$12.8088.81%$302.50—————
1951$11.30$11.8088.79%$305.00—$26.50$27.3518510
41$10.30$10.9088.13%$307.50—————
64103$9.60$10.2088.52%$310.00—$29.80$30.65956134
418$8.70$9.3087.59%$312.50—$31.50$32.4512
2522$8.10$8.5587.63%$315.00—$33.25$34.056401

Forward $289.55. The 25-delta put carries +7.09 volatility points over the 25-delta call.

2026-11-27(18 days)ATM 81.57%±52.49skew +7.31
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
13$40.30$45.95—$255.0086.37%$7.50$8.2041
0—$39.25$43.70—$257.5086.33%$8.15$9.00—0
431$37.60$41.85—$260.0085.85%$8.90$9.60764
2—$35.45$40.15—$262.5085.54%$9.60$10.40—5
46$33.70$38.15—$265.0085.26%$10.35$11.251414
3—$33.25$34.35—$267.5084.91%$11.20$12.05—0
26$31.75$32.85—$270.0084.48%$12.05$12.90756
1—$30.05$31.30—$272.5084.19%$12.95$13.85—0
1117$28.70$29.60—$275.0083.81%$13.90$14.80170
0—$27.10$28.10—$277.5083.77%$14.90$15.95—0
269$25.65$26.90—$280.0083.43%$16.05$16.905920
4—$24.10$25.35—$282.5082.51%$16.85$18.00—3
1026$22.75$24.05—$285.0082.31%$18.05$19.151011
0—$21.55$22.80—$287.5082.22%$19.30$20.40—2
1943$20.35$21.5082.24%$290.00—$20.65$21.70464
2723$18.00$19.0581.51%$295.00—$23.15$24.30383
2121$15.85$16.8580.93%$300.00—$26.00$27.201655
616$13.85$14.8580.34%$305.00—$28.90$30.30480
177$12.05$12.9579.65%$310.00—$32.15$33.30606
715$10.40$11.3079.07%$315.00—$35.60$36.65350
722$8.95$9.8078.54%$320.00—$39.05$40.301782

Forward $289.75. The 25-delta put carries +7.31 volatility points over the 25-delta call.

2026-12-04(25 days)ATM 79.36%±60.29skew +9.40
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
—————$240.0087.44%$6.20$7.45253
—————$245.0086.11%$7.20$8.4041
016$47.30$52.20—$250.0085.66%$8.35$9.80492
02$43.60$48.70—$255.0085.46%$10.00$11.10161
114$40.15$45.05—$260.0085.27%$11.70$12.65362
1512$37.60$41.20—$265.0084.58%$13.10$14.552532
132$34.30$38.35—$270.0084.18%$14.95$16.45318142
112$31.05$35.05—$275.0083.94%$16.75$18.80212
36$28.35$30.30—$280.0082.89%$18.85$20.70764
23$25.70$29.35—$285.0083.95%$21.25$23.8521278
29$23.60$26.75—$290.0083.04%$23.85$25.95473
38$20.20$23.8579.92%$295.00—$25.65$29.10282
2638$18.45$20.7578.70%$300.00—$29.20$30.706812
34$16.85$20.9082.62%$305.00—$31.20$34.60388
20514$15.20$17.2579.63%$310.00—$33.45$37.50432
1333$13.50$15.7079.59%$315.00—$37.50$40.80281
510$11.80$13.6078.09%$320.00—$40.10$43.40678
77$10.50$12.3578.33%$325.00—$44.20$47.254016
111$9.35$10.2076.69%$330.00—$47.25$50.90970
431$8.05$9.0076.05%$335.00—$52.25$55.702040
1152$7.00$8.1076.06%$340.00—$55.40$59.80552

Forward $290.28. The 25-delta put carries +9.40 volatility points over the 25-delta call.

2026-12-11(32 days)ATM 77.74%±66.86skew +5.73
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$53.75$63.00—$240.0083.37%$7.30$9.0071
—————$245.0082.43%$8.10$10.4552
—————$250.0082.32%$9.80$11.65515
20$45.00$50.50—$255.0081.61%$10.90$13.40128
22$42.25$46.85—$260.0080.28%$12.25$14.80430
03$38.55$43.95—$265.0080.48%$14.10$16.85213
—————$270.0080.09%$16.50$18.304447
25$33.15$37.15—$275.0079.26%$18.15$20.5031
158$30.45$34.65—$280.0078.69%$20.30$22.65532
12$27.90$31.70—$285.0079.18%$23.15$25.10115
04$25.50$29.00—$290.0079.29%$25.70$27.90292
62$23.10$25.5577.16%$295.00—$27.00$31.1013
1415$21.10$24.1078.14%$300.00—$31.10$33.002726
57$19.25$22.6078.86%$305.00—$32.60$36.95151
17$17.35$20.1077.64%$310.00—$36.75$39.25102
11$15.55$18.4077.36%$315.00—$39.80$42.9026
212$14.00$16.4576.69%$320.00—$42.15$45.90198
21$12.60$15.0076.64%$325.00—$45.25$49.6050
184$11.35$13.2075.91%$330.00—$49.40$54.25116
02$10.00$12.1575.85%$335.00—$52.35$57.90140
310$9.05$10.9575.88%$340.00—$55.80$61.9585

Forward $290.45. The 25-delta put carries +5.73 volatility points over the 25-delta call.

2026-12-18(39 days)ATM 76.07%±72.21skew +7.51
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
2022$96.25$101.10—$195.0090.40%$2.66$3.0511826
0210$91.75$96.75—$200.0088.98%$3.10$3.4546033
040$82.80$88.00—$210.0087.14%$4.20$4.65138166
4125$74.50$79.15—$220.0085.26%$5.65$6.05293104
073$65.75$70.85—$230.0083.52%$7.40$7.85628159
3087$58.25$63.75—$240.0082.28%$9.75$10.0540055
28184$51.45$55.60—$250.0081.24%$12.35$13.004,271419
15193$44.30$48.60—$260.0080.11%$15.60$16.2066157
58171$39.45$40.60—$270.0079.20%$19.35$20.0599348
133184$34.15$34.85—$280.0078.36%$23.80$24.3052629
357224$29.10$29.60—$290.0077.57%$28.60$29.301,270162
2632,486$24.10$25.0076.07%$300.00—$34.05$34.801,277104
120301$20.55$21.1576.13%$310.00—$40.10$40.7049414
63186$17.10$17.6075.44%$320.00—$46.55$47.251,24936
24126$13.95$14.5574.58%$330.00—$53.20$54.2543326
57349$11.45$11.8073.85%$340.00—$59.80$63.0055728
631,680$9.30$9.8573.73%$350.00—$68.25$70.951,34877
67892$7.40$7.8572.81%$360.00—$76.00$77.8562328
69665$5.95$6.4572.70%$370.00—$82.75$87.901,03325
202658$4.75$5.2572.51%$380.00—$93.30$95.7582537
3921,809$3.80$4.3072.52%$390.00—$101.60$104.7087541

Forward $290.40. The 25-delta put carries +7.51 volatility points over the 25-delta call.

2026-12-24(45 days)ATM 74.27%±76.31skew +7.55
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
—————$245.0080.71%$11.15$13.1004
—————$250.0080.08%$12.60$14.5004
—————$255.0081.97%$14.20$17.6520
13$46.40$51.35—$260.0079.03%$15.65$17.9562
—————$265.0079.05%$17.60$20.001200
44$40.35$44.65—$270.0079.05%$19.75$22.1093
81$37.00$41.45—$275.0079.31%$21.85$24.70268
516$34.75$38.60—$280.0078.83%$24.30$26.651210
35$32.50$37.30—$285.0078.74%$26.50$29.4030
12$29.90$36.15—$290.0078.34%$29.30$31.5532
01$27.30$31.9575.43%$295.00—$31.85$35.0538
1612$25.40$28.8074.39%$300.00—$33.95$37.2066
—————$305.00—$36.20$41.2001
65$21.70$24.5574.07%$310.00—$39.05$44.1521
148$19.45$23.1073.81%$315.00—$40.35$47.4010
80$18.05$20.6573.08%$320.00—$46.70$51.65313
30$16.40$20.7574.98%$325.00—————
66$15.05$19.7075.58%$330.00—$51.40$59.4534
10$13.85$16.0572.72%$335.00—$55.35$60.85141
43$12.35$14.3071.62%$340.00—$58.85$65.15113
20$11.10$13.9572.54%$345.00—$64.05$69.30221

Forward $292.61. The 25-delta put carries +7.55 volatility points over the 25-delta call.

2027-01-15(67 days)ATM 72.54%±90.74skew +7.87
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
068$97.55$105.05—$195.0083.20%$5.15$5.603990
0416$95.05$100.35—$200.0081.93%$5.60$6.351,299732
247$87.55$91.90—$210.0081.60%$7.40$8.4060686
0259$79.35$84.40—$220.0079.12%$9.10$10.00312143
0354$68.90$76.05—$230.0078.37%$11.65$12.40430136
0229$64.40$68.85—$240.0077.27%$14.15$15.35566688
0370$58.50$61.95—$250.0077.02%$17.50$18.9060635
133233$51.15$55.45—$260.0075.46%$20.85$22.2096112
241811$45.55$49.25—$270.0074.11%$24.30$26.3552237
144313$40.30$43.15—$280.0073.86%$29.15$30.951,464145
67444$35.90$38.10—$290.0073.27%$34.15$35.95878151
22496$31.30$34.3573.35%$300.00—$40.10$42.054,51031
1694$26.90$29.7571.95%$310.00—$45.80$48.206389
20261$23.95$24.8070.87%$320.00—$51.55$54.252,70662
39430$20.45$22.5071.17%$330.00—$57.85$61.401,42331
37509$17.35$19.8070.77%$340.00—$65.35$68.6066319
65492$14.90$16.1069.25%$350.00—$72.85$76.001,80524
221,011$13.00$13.9069.33%$360.00—$80.25$83.901,3043
24394$11.15$11.9569.15%$370.00—$88.30$90.906566
44685$9.50$10.2568.93%$380.00—$96.60$100.301,7674
15650$8.00$8.6568.44%$390.00—$105.85$108.554681

Forward $291.96. The 25-delta put carries +7.87 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.