Options Skew Analytics

CMI option chain

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

Data as of 6 November 2026 (end of day)

2026-11-20(14 days)ATM 44.00%±38.88skew +4.70
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$61.60$64.50—$390.00—————
04$52.10$55.00—$400.00—————
02$43.30$46.30—$410.0048.78%$2.70$4.10320
01$34.90$38.00—$420.0046.84%$4.00$5.90752
01$27.50$30.10—$430.0045.25%$6.20$8.201221
13$20.40$23.50—$440.0045.07%$9.40$12.00251
526$14.80$17.50—$450.0044.23%$13.40$16.50770
128$9.90$13.0043.47%$460.00—$18.90$21.80714
1123$6.30$9.3042.87%$470.00—$25.30$27.901208
20134$3.80$5.4040.55%$480.00—$33.10$35.70771
—————$490.00—$41.30$43.601502
6425$1.30$2.0039.99%$500.00—$49.90$52.1027212
—————$510.00—$59.00$62.00626414
—————$520.00—$69.40$71.801410
—————$530.00—$78.60$81.40643401
—————$540.00—$89.00$91.50140
—————$550.00—$98.70$101.50441
—————$560.00—$109.10$111.4050
—————$580.00—$128.30$131.3021
—————$590.00—$138.90$141.1010
—————$610.00—$158.30$161.3020

Forward $451.20. The 25-delta put carries +4.70 volatility points over the 25-delta call.

2026-12-18(42 days)ATM 38.75%±59.38skew +2.61
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
017$101.30$103.90—$350.00—————
04$91.70$94.50—$360.00—————
03$82.50$85.50—$370.0044.89%$2.30$3.201963
04$73.50$76.50—$380.0044.01%$3.30$4.20206
09$64.90$68.00—$390.0043.02%$3.80$6.2080
010$56.40$59.00—$400.0042.32%$6.10$7.30612
03$48.60$51.40—$410.0040.58%$7.30$9.401510
05$41.30$44.00—$420.0039.78%$9.50$12.20441
033$35.00$37.00—$430.0039.62%$13.10$15.402917
064$28.40$31.10—$440.0038.97%$16.70$19.308321
191$23.30$25.60—$450.0038.83%$21.20$24.208013
1182$18.50$21.2038.67%$460.00—$26.40$29.302553
569$14.00$17.1037.92%$470.00—$33.10$35.4019021
136$11.30$13.7038.25%$480.00—$39.70$42.2011116
212$8.10$10.4037.17%$490.00—$46.80$48.80801
17213$6.00$6.9035.74%$500.00—$54.60$57.102981
—————$510.00—$63.00$65.402610
1287$3.10$4.5036.47%$520.00—$71.50$74.301025
115$2.10$3.5036.50%$530.00—$80.60$83.40367
—————$540.00—$90.10$92.70246
—————$550.00—$99.70$102.20820

Forward $451.76. The 25-delta put carries +2.61 volatility points over the 25-delta call.

2027-03-19(133 days)ATM 39.21%±107.65skew +5.49
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
0107$110.50$113.40—$350.0043.61%$7.30$10.001535
04$102.40$105.50—$360.0043.12%$9.10$11.70546
05$94.60$97.50—$370.0043.00%$11.80$13.50401
04$87.30$90.00—$380.0042.60%$14.10$15.90400
07$79.80$82.50—$390.0042.63%$17.30$18.70675
220$73.00$75.60—$400.0042.15%$20.20$21.60708
029$66.30$69.50—$410.0041.77%$23.30$25.103010
094$60.20$62.60—$420.0040.39%$25.60$28.101086
131$54.70$57.00—$430.0040.23%$29.50$32.50270
066$48.60$51.50—$440.0040.44%$34.90$36.9076383
37$43.60$46.50—$450.0039.82%$39.00$41.6010110
010$39.00$41.5039.50%$460.00—$43.70$46.702176
05$34.50$37.0039.12%$470.00—$49.80$52.0071367
02$30.20$33.0038.76%$480.00—$55.50$58.00530
46$26.20$28.6038.02%$490.00—$61.80$64.40262
4751$23.20$25.9038.26%$500.00—$68.40$70.90348
013$20.30$22.9038.12%$510.00—$75.20$77.90300
817$17.20$20.0037.63%$520.00—$82.40$85.30284
010$14.80$17.2037.24%$530.00—$89.50$92.70332
910$12.30$14.7036.66%$540.00—$97.10$100.50380
453$10.80$12.9036.77%$550.00—$105.50$108.80172

Forward $454.82. The 25-delta put carries +5.49 volatility points over the 25-delta call.

2027-06-17(223 days)ATM 39.18%±139.93skew +3.86
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
13$112.20$114.50—$360.0041.99%$16.00$19.2090
13$105.00$107.50—$370.0041.61%$18.60$21.70170
05$98.10$100.50—$380.0041.37%$21.50$24.7010
090$91.10$94.00—$390.0041.30%$25.00$28.00150
045$84.40$87.50—$400.0040.87%$28.30$31.20538
09$78.40$81.50—$410.0040.64%$32.10$34.90103
031$72.80$75.50—$420.0040.47%$36.00$39.2040
05$66.90$70.00—$430.0039.93%$39.80$43.2053
012$61.90$64.50—$440.0039.84%$44.70$47.8050
08$56.60$59.50—$450.0039.44%$49.10$52.60130
012$51.60$55.0039.50%$460.00—$54.90$57.8060
05$47.20$50.5039.21%$470.00—$60.40$63.3080
019$43.50$46.5039.18%$480.00—$66.00$69.00150
02$39.40$42.5038.81%$490.00—$72.00$75.00141
311$35.90$38.7038.56%$500.00—$78.30$81.20210
06$32.70$35.5038.46%$510.00—$84.90$87.80360
014$29.50$32.5038.27%$520.00—$91.70$94.5040
04$26.70$29.4038.02%$530.00—$98.70$101.5041
08$23.90$26.5037.68%$540.00—$105.80$108.9011
028$21.80$24.5037.82%$550.00—$113.00$116.40670
03$19.40$21.9037.44%$560.00—$121.30$124.0030

Forward $456.87. The 25-delta put carries +3.86 volatility points over the 25-delta call.

2027-09-17(315 days)ATM 38.46%±164.52skew +3.62
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$119.40$122.50—$360.0040.62%$21.20$24.2083
05$112.30$115.50—$370.0041.09%$25.80$27.2030
015$105.80$109.00—$380.0040.89%$29.10$30.40643
22$99.60$103.00—$390.0040.70%$32.50$34.00150
06$93.50$97.00—$400.0040.35%$35.90$37.60130
07$87.80$91.00—$410.0039.78%$38.50$41.8013
067$82.00$85.50—$420.0039.55%$42.60$45.9010
130$76.90$80.00—$430.0039.62%$47.60$50.50710
09$72.20$75.00—$440.0039.25%$51.80$55.00192
01$67.10$70.00—$450.0039.18%$56.80$60.10270
013$62.50$65.50—$460.0039.00%$61.80$65.3010
011$57.80$61.0038.65%$470.00—$67.30$70.5032
118$53.70$57.0038.50%$480.00—$73.00$76.2053
010$50.40$53.0038.47%$490.00—$78.80$82.5022
011$46.20$49.5038.19%$500.00—$85.00$88.50580
042$42.50$46.0037.94%$510.00—$91.10$95.00930
0305$39.60$42.5037.81%$520.00—$97.70$101.50160
05$36.10$39.5037.54%$530.00—$104.50$108.3030
07$33.70$36.5037.49%$540.00—$111.50$115.30130
116$30.30$34.0037.18%$550.00—$119.00$122.5090
14$28.50$31.5037.27%$560.00—$126.20$129.9010

Forward $460.47. The 25-delta put carries +3.62 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.