Options Skew Analytics

CLS option chain

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

Data as of 25 September 2026 (end of day)

2026-10-02(7 days)ATM 57.27%±29.20skew -1.79
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
210$26.30$31.80—$342.50—————
1685$25.30$28.80—$345.0059.30%$2.90$4.204128
06$22.30$27.90—$347.5058.99%$3.70$4.50311
4135$21.10$24.40—$350.0059.51%$4.20$5.50281108
06$18.90$24.40—$352.5060.13%$5.00$6.4049
350$17.40$22.50—$355.0062.20%$6.00$7.80629
237$15.90$19.60—$357.5061.33%$7.00$8.3070
26123$14.60$19.30—$360.0058.29%$7.80$8.3026930
1611$13.40$17.40—$362.5057.77%$8.50$9.501016
28364$13.00$16.70—$365.0059.58%$9.00$12.001835
1535$10.30$15.10—$367.5060.69%$9.90$14.00145
65387$9.20$12.2056.71%$370.00—$12.40$13.602643
1513$8.60$12.5061.44%$372.50—$12.50$17.90010
3194$8.30$9.0057.12%$375.00—$14.40$17.90413
613$7.00$11.1063.95%$377.50—$15.40$20.3020
59152$6.90$7.2058.21%$380.00—$18.60$21.1020
11$5.80$8.9064.07%$382.50—————
3993$5.10$6.2058.90%$385.00—$19.10$25.2010
17$4.40$6.4061.30%$387.50—$21.80$26.40150
—————$390.00—$24.20$29.30100
34534$2.70$3.9058.50%$395.00—————

Forward $368.25. The 25-delta put carries -1.79 volatility points over the 25-delta call.

2026-10-09(14 days)ATM 56.45%±40.85skew +1.22
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
1171$35.60$40.10—$335.0057.07%$3.40$4.8015119
174$32.00$37.50—$340.0057.44%$4.60$6.001716
045$28.30$33.80—$345.00—————
—————$347.5057.69%$6.70$8.2010
1265$25.20$30.90—$350.0057.86%$7.50$9.1093
01$23.10$28.40—$352.50—————
1174$21.70$26.20—$355.00—————
10$20.60$25.50—$357.50—————
151$19.30$23.50—$360.0059.75%$11.60$13.70280
10$18.00$22.40—$362.5055.97%$10.50$14.9011
725$16.80$20.80—$365.0059.81%$13.90$16.0053
62$15.50$20.60—$367.5055.69%$12.50$17.5002
9314$14.50$17.6056.44%$370.00—$13.70$19.3050
272$13.40$16.4056.45%$372.50—$16.70$20.30013
1623$12.50$15.3056.77%$375.00—$16.50$21.7010
2435$10.70$12.0054.86%$380.00—$19.70$25.0012
425$9.00$12.5059.11%$385.00—————
30$8.10$11.6058.83%$387.50—————
2795$7.60$8.8055.50%$390.00—————
2375$5.40$6.4056.48%$400.00—$34.80$39.6010
022$4.40$5.4056.56%$405.00—————

Forward $369.55. The 25-delta put carries +1.22 volatility points over the 25-delta call.

2026-10-16(21 days)ATM 60.30%±53.24skew -3.79
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
—————$342.5058.12%$8.80$10.20312
011$32.10$36.80—$345.0054.52%$7.30$11.20132
015$30.10$35.40—$347.5053.52%$7.40$12.2030
431,334$30.40$33.90—$350.0058.54%$11.50$13.10114156
01$27.60$33.30—$352.50—————
020$26.20$30.80—$355.0055.16%$11.30$15.1030
10$24.80$29.10—$357.5056.88%$13.30$16.4002
141,599$23.80$26.80—$360.0058.70%$15.20$18.001841
0115$21.10$25.10—$365.0058.08%$17.30$20.3040
015$19.60$24.20—$367.50—————
32855$18.40$21.6059.47%$370.00—$20.10$23.70710
101$17.30$21.1060.37%$372.50—————
611$16.60$19.6060.29%$375.00—$23.00$26.0010
01$15.30$19.4061.08%$377.50—————
442,071$14.80$16.6059.17%$380.00—$25.20$28.90210
10$13.50$17.3061.01%$382.50—————
65697$13.20$15.8061.00%$385.00—————
01$12.10$15.8061.91%$387.50—————
16816$11.40$14.7061.68%$390.00—$31.70$35.70213
10$10.60$13.9061.62%$392.50—————
015$10.20$13.0061.91%$395.00—————

Forward $368.10. The 25-delta put carries -3.79 volatility points over the 25-delta call.

2026-10-23(28 days)ATM 60.30%±61.41skew -2.01
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
127$51.80$57.60—$320.0058.72%$5.40$6.706415
218$48.30$54.10—$325.0058.49%$6.50$7.807810
015$44.70$51.00—$330.0058.13%$7.60$9.1012452
011$41.50$47.40—$335.0058.25%$9.10$10.601910
322$38.70$44.10—$340.0057.74%$10.50$12.104164
012$34.40$40.70—$345.0057.93%$12.20$14.10208
416$31.60$38.00—$350.0057.91%$14.20$16.0016510
116$28.20$35.00—$355.0058.74%$15.00$20.10344
519$26.20$31.10—$360.0055.43%$16.50$20.60185
244$23.40$29.40—$365.0057.15%$19.30$24.10320
728$22.30$24.4060.26%$370.00—$23.50$27.701211
8114$18.70$23.7060.32%$375.00—$25.00$30.3032
353$17.00$22.0061.12%$380.00—$27.50$33.1010
5913$14.80$19.3059.67%$385.00—$30.60$36.9010
832$12.70$17.0058.43%$390.00—$34.50$40.3010
01$11.30$15.3058.48%$395.00—————
58303$11.30$14.1060.73%$400.00—————
13$8.20$12.4057.73%$405.00—$44.90$50.0010
217$6.80$11.2057.36%$410.00—————
19$7.80$11.3062.24%$415.00—————
39$7.00$8.8060.26%$420.00—————

Forward $367.74. The 25-delta put carries -2.01 volatility points over the 25-delta call.

2026-10-30(35 days)ATM 70.64%±81.09skew +2.47
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
045$57.30$63.60—$320.0071.85%$10.20$13.001719
14$54.60$60.40—$325.0075.02%$12.00$16.50146
113$51.00$56.80—$330.0070.52%$12.50$16.00229
012$48.10$55.00—$335.0070.82%$14.20$18.0054
04$45.00$50.90—$340.0073.26%$16.30$21.601711
154$41.70$49.00—$345.0071.63%$17.50$23.10107
033$39.50$46.00—$350.0074.48%$20.80$26.501128
05$36.00$42.20—$355.0070.26%$21.20$27.0040
442$33.90$40.00—$360.0072.01%$23.60$30.901031
337$30.90$38.70—$365.0070.54%$26.00$32.2021
541$30.00$35.40—$370.00—————
226$27.20$33.1070.39%$375.00—————
520$25.20$31.1070.64%$380.00—$34.20$40.6010
51$23.10$29.2070.63%$385.00—————
58$21.20$27.4070.69%$390.00—$41.50$47.5020
28$19.60$25.8071.08%$395.00—————
1363$18.60$22.5069.99%$400.00—————
05$16.70$20.9069.55%$405.00—————
144$15.20$21.0071.31%$410.00—————
14$14.10$20.3072.44%$415.00—————
012$12.80$19.1072.55%$420.00—————

Forward $370.72. The 25-delta put carries +2.47 volatility points over the 25-delta call.

2026-11-06(42 days)ATM 70.00%±88.15skew -1.56
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
—————$300.0071.88%$7.50$9.5013
—————$305.0072.87%$8.90$11.1024
—————$310.0072.43%$10.10$12.2008
—————$315.0071.47%$10.70$13.701021
10$60.10$66.80—$320.0070.96%$12.00$15.0008
—————$325.0071.71%$13.20$17.6006
02$51.20$57.10—$335.0072.71%$17.90$20.9005
—————$340.0069.96%$17.80$22.5010
—————$345.0069.51%$19.50$24.5001
—————$350.0069.68%$21.70$26.8080
012$39.70$45.90—$355.0069.60%$24.00$29.00150
01$36.00$43.30—$360.0072.27%$28.40$32.00103
08$33.90$40.80—$365.00—————
31$33.00$38.50—$370.0070.58%$31.60$37.5002
04$28.00$34.3070.05%$380.00—————
20$26.00$32.2069.96%$385.00—————
10$23.10$28.8071.08%$395.00—————
30$20.60$27.3070.48%$400.00—————
10$14.00$19.5073.09%$430.00—————
0—$11.40$17.5072.89%$440.00—$80.60$87.10—0
0—$10.60$16.6073.27%$445.00—$84.60$91.40—0

Forward $371.21. The 25-delta put carries -1.56 volatility points over the 25-delta call.

2026-11-20(56 days)ATM 70.42%±102.11skew -0.08
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
013$103.40$109.00—$270.0071.56%$5.50$5.90438136
026$95.10$100.90—$280.0071.64%$6.60$8.401451
033$87.30$92.70—$290.0070.97%$8.70$10.1016813
083$78.90$85.20—$300.0070.64%$11.10$12.4025832
0717$72.70$77.80—$310.0070.52%$14.20$14.9017835
286$65.60$71.20—$320.0069.96%$17.10$18.00261220
1161$59.30$64.30—$330.0069.65%$20.20$21.901477
0191$53.60$57.60—$340.0069.91%$24.20$26.301723
183$48.80$52.80—$350.0070.20%$28.70$31.101033
6134,712$43.80$47.30—$360.0070.28%$33.20$36.50181
5125$38.50$43.00—$370.0070.96%$38.40$42.70282
41,680$34.20$37.9070.16%$380.00—$44.90$47.70410
436$30.90$34.2070.81%$390.00—$50.10$53.60780
62,182$28.00$30.2070.94%$400.00—$57.50$60.80461
1179$24.30$27.4070.85%$410.00—$64.10$67.0070
2704$21.30$24.3070.57%$420.00—$70.10$74.8050
1093,689$19.20$20.4069.82%$430.00—$77.30$81.4010
10258$16.70$18.7070.26%$440.00—$83.20$89.3010
3259$14.80$16.1069.92%$450.00—$93.50$97.4010
2122$13.00$14.3070.05%$460.00—$100.00$105.7010
417$11.50$12.8070.40%$470.00—$108.40$113.9010

Forward $370.20. The 25-delta put carries -0.08 volatility points over the 25-delta call.

2026-12-18(84 days)ATM 66.48%±118.96skew +1.74
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
044$107.80$113.40—$270.0069.02%$8.30$9.701533
043$99.10$105.20—$280.0068.46%$10.20$11.801098
0146$91.00$97.70—$290.0068.82%$13.30$14.101223
6162$84.50$90.80—$300.0068.12%$15.60$16.9015113
055$77.80$84.00—$310.0067.98%$18.70$20.101140
1112$71.60$75.80—$320.0067.76%$22.20$23.5026921
1107$66.10$71.50—$330.0067.63%$26.00$27.40682
3110$60.60$66.00—$340.0067.80%$30.50$31.7010426
15203$55.30$59.80—$350.0067.50%$34.70$36.401003
779$50.50$54.90—$360.0066.42%$37.70$41.90351
297$45.90$50.20—$370.0066.40%$42.70$47.50650
5517$41.70$46.2066.63%$380.00—$48.10$53.60663
052$37.80$42.0066.47%$390.00—$53.90$59.30460
131,302$34.20$38.4066.53%$400.00—$60.20$65.801000
044$30.50$35.1066.31%$410.00—$67.00$73.10290
43674$27.90$32.1066.71%$420.00—$74.00$79.60300
073$25.30$29.2066.82%$430.00—$82.00$86.9050
063$22.90$26.7067.02%$440.00—$90.00$94.50150
12999$20.70$24.4067.20%$450.00—$96.00$102.30170
0235$19.10$20.3066.11%$460.00—$104.00$110.3010
2832$17.10$18.3066.02%$470.00—$113.00$118.4070

Forward $372.98. The 25-delta put carries +1.74 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.