Options Skew Analytics

CBOE option chain

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

Data as of 22 September 2026 (end of day)

2026-09-25(3 days)ATM 41.23%±9.98skew +6.60
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
02$54.60$57.40—$210.00—————
11$24.70$28.10—$240.00—————
01$19.90$22.60—$245.00—————
0107$15.10$18.20—$250.00—————
010$8.30$11.30—$257.5045.29%$0.85$1.4030710
027$6.40$9.30—$260.00—————
023$4.80$7.20—$262.5043.08%$1.80$2.75480
68174$4.30$5.90—$265.0042.12%$2.60$3.7039110
92111$3.00$4.4041.08%$267.50—————
39121$2.00$3.1040.03%$270.00—$5.00$7.30921
—————$272.50—$6.30$9.50610
4719$0.80$1.3038.68%$275.00—$8.60$11.30255
820$0.50$0.7538.25%$277.50—$10.60$13.6020
—————$280.00—$12.90$15.8090
—————$282.50—$14.90$18.2020
—————$285.00—$17.80$20.60140
—————$290.00—$22.00$25.80160
—————$292.50—$25.20$28.20300
—————$295.00—$27.30$30.50700
—————$300.00—$32.00$35.6070
—————$305.00—$36.70$40.5010

Forward $266.95. The 25-delta put carries +6.60 volatility points over the 25-delta call.

2026-10-02(10 days)ATM 35.64%±15.74skew +4.00
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$40.00$43.60—$225.00—————
—————$250.0039.48%$1.10$1.7582
—————$252.5038.68%$1.50$2.1002
01$12.20$15.10—$255.0037.98%$1.95$2.6032
—————$257.5037.44%$2.45$3.3010
01$8.80$11.20—$260.0037.25%$3.20$4.10202
01$7.00$10.30—$262.50—————
12$6.40$7.80—$265.0036.13%$5.00$6.00300
32$5.40$6.4035.58%$267.50—$6.10$7.2011
104$4.20$5.2034.96%$270.00—$7.40$9.504410
06$3.10$4.2034.28%$272.50—$8.20$11.2040
135$2.30$3.3033.86%$275.00—$10.30$12.6090
12$1.80$2.5533.99%$277.50—————
06$1.30$1.9533.76%$280.00—$14.00$16.30330
—————$282.50—$16.20$19.0010
—————$285.00—$18.00$21.30110
—————$287.50—$20.50$23.5010
—————$290.00—$22.70$25.90150
—————$295.00—$27.50$30.7030
—————$300.00—$32.10$35.7060

Forward $266.75. The 25-delta put carries +4.00 volatility points over the 25-delta call.

2026-10-16(24 days)ATM 34.28%±23.45skew +2.52
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$55.40$59.30—$210.00—————
01$45.60$49.50—$220.00—————
010$27.00$30.00—$240.00—————
—————$245.0037.93%$2.00$3.2001
27$19.20$21.70—$250.0036.62%$2.90$4.1045916
—————$252.5036.22%$3.40$4.8001
—————$255.0035.68%$4.00$5.5010
—————$257.5035.22%$4.70$6.3030
015$11.80$14.50—$260.0034.99%$5.60$7.202414
—————$265.0034.53%$7.70$9.3010
034$6.80$8.8034.02%$270.00—$9.60$12.4025637
01$5.80$7.4033.33%$272.50—$11.20$14.00150
—————$275.00—$12.70$15.2060
10123$3.50$5.1033.94%$280.00—$16.10$19.201117
01$2.80$4.4033.69%$282.50—————
220$2.00$3.2033.94%$287.50—————
21110$1.70$2.7034.08%$290.00—$23.90$26.90766
—————$300.00—$33.20$36.10670
—————$310.00—$42.30$45.60880
—————$320.00—$51.70$55.60130

Forward $266.79. The 25-delta put carries +2.52 volatility points over the 25-delta call.

2026-11-20(59 days)ATM 35.85%±38.67skew +4.24
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
—————$210.0043.63%$1.15$1.9092
—————$220.0041.35%$2.00$2.5542
—————$230.0040.10%$3.20$4.0032
—————$240.0039.20%$5.20$6.0043
—————$250.0038.18%$7.80$8.80127
10$19.40$20.50—$260.0037.28%$11.30$12.5010
48$14.00$15.1035.90%$270.00—$15.30$17.20150
33$9.90$10.9035.58%$280.00—$21.70$22.90414
625$6.60$7.6035.04%$290.00—$28.00$30.9020
241$4.40$5.2034.96%$300.00—————
601$2.80$3.9035.60%$310.00—$44.30$47.2010

Forward $268.29. The 25-delta put carries +4.24 volatility points over the 25-delta call.

2026-12-18(87 days)ATM 35.27%±46.04skew +2.02
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
02$91.50$95.20—$175.00—————
04$81.80$85.60—$185.00—————
015$77.10$80.90—$190.00—————
01$72.30$76.40—$195.00—————
06$67.60$71.60—$200.00—————
02$58.70$62.60—$210.00—————
050$49.80$53.00—$220.0038.70%$3.00$4.1021414
010$41.70$44.50—$230.0037.68%$4.90$5.6028610
080$34.10$36.90—$240.0036.84%$7.20$8.0029938
0256$27.30$30.00—$250.0036.01%$10.20$11.1019341
1149$21.00$23.30—$260.0035.13%$13.80$15.1014828
0138$15.90$18.0035.25%$270.00—$18.60$20.601544
3185$12.50$13.6035.40%$280.00—$24.20$26.802594
26242$9.10$10.2035.00%$290.00—$30.30$33.401380
3412$6.60$7.5034.82%$300.00—$37.60$40.501190
3145$4.80$5.5034.91%$310.00—$45.80$48.60860
3193$3.30$4.2035.10%$320.00—$54.50$57.40410
—————$330.00—$63.60$66.50240
—————$340.00—$73.10$76.20140
—————$350.00—$82.20$85.9010
—————$360.00—$91.50$95.6020

Forward $267.32. The 25-delta put carries +2.02 volatility points over the 25-delta call.

2027-01-15(115 days)ATM 34.90%±52.66skew +2.39
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$92.10$96.10—$175.00—————
06$87.20$91.10—$180.00—————
03$82.70$86.50—$185.00—————
09$78.00$81.90—$190.00—————
012$73.60$76.80—$195.00—————
034$69.10$73.10—$200.0042.15%$2.05$3.401061
067$60.40$63.50—$210.0040.53%$3.10$4.40930
0122$51.70$55.60—$220.0040.11%$4.30$6.701930
0200$43.80$46.80—$230.0037.60%$6.50$7.301570
0155$36.40$39.50—$240.0036.38%$8.90$9.6016417
11,178$30.10$32.60—$250.0035.96%$12.10$13.103790
3503$24.10$26.30—$260.0035.69%$15.80$17.702320
2262$19.50$21.1035.11%$270.00—$20.30$22.608271
1194$15.20$16.6034.61%$280.00—$26.10$28.301900
0228$11.60$12.8034.10%$290.00—$31.70$34.806600
17674$8.90$10.0034.14%$300.00—$39.00$42.103330
0284$6.60$7.7033.99%$310.00—$47.20$50.001750
0285$5.30$6.0034.58%$320.00—$55.50$58.501970
81,654$3.80$4.8034.70%$330.00—$64.10$67.50610
—————$340.00—$73.20$76.601660
—————$350.00—$82.50$86.20150

Forward $268.83. The 25-delta put carries +2.39 volatility points over the 25-delta call.

2027-03-19(178 days)ATM 34.66%±65.39skew +2.11
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
02$94.10$97.70—$175.00—————
06$89.60$92.90—$180.00—————
01$85.10$88.80—$185.00—————
01$80.50$84.30—$190.00—————
02$72.00$75.70—$200.00—————
03$63.80$66.70—$210.00—————
02$55.70$59.70—$220.0037.31%$6.20$9.00360
03$48.30$51.90—$230.0036.81%$9.40$10.80190
013$41.30$44.90—$240.0036.28%$11.20$15.00150
03$35.60$38.50—$250.0035.54%$15.60$17.40250
04$29.40$32.10—$260.0035.22%$20.00$21.5074
045$24.60$27.00—$270.0034.99%$24.80$26.50156
248$20.20$22.6034.64%$280.00—$30.00$32.70220
245$16.80$18.9034.69%$290.00—$35.40$39.00300
3160$13.00$15.7034.09%$300.00—$42.80$46.001040
0162$11.20$13.0034.61%$310.00—$50.50$53.20770
038$8.90$10.6034.38%$320.00—$57.60$61.0070
015$7.30$8.9034.69%$330.00—$65.50$69.4030
056$5.90$7.3034.76%$340.00—$74.80$78.0040
068$4.90$6.1035.12%$350.00—$83.50$87.20110
—————$360.00—$93.00$96.3030

Forward $270.15. The 25-delta put carries +2.11 volatility points over the 25-delta call.

2027-06-17(268 days)ATM 34.52%±80.74skew +1.48
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
06$92.60$96.50—$180.00—————
06$88.30$92.10—$185.00—————
08$84.00$88.00—$190.00—————
07$80.00$83.70—$195.0038.45%$4.70$7.0020
019$76.00$79.70—$200.0037.93%$5.20$8.00120
—————$210.0036.43%$7.00$9.10260
02$60.50$64.90—$220.0037.09%$9.30$12.90270
—————$230.0036.57%$11.90$15.90210
04$47.20$51.10—$240.0035.95%$15.00$19.10190
075$41.80$44.80—$250.0035.78%$18.90$23.10440
020$36.20$39.30—$260.0035.34%$23.20$27.20130
030$30.90$34.40—$270.0034.83%$27.90$31.701000
028$26.50$30.0034.58%$280.00—$33.40$37.6070
026$22.60$26.3034.50%$290.00—$39.40$43.60190
0162$19.40$23.0034.56%$300.00—$46.10$49.404060
022$16.10$20.0034.28%$310.00—$53.00$57.00310
067$13.40$17.5034.22%$320.00—$60.50$64.401600
030$11.40$15.0034.19%$330.00—$68.80$72.304740
0157$9.90$13.4034.69%$340.00—$76.70$80.4070
0950$8.70$11.8035.09%$350.00—$85.20$89.0090
023$6.50$10.2034.46%$360.00—————

Forward $272.94. The 25-delta put carries +1.48 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.