Options Skew Analytics

CDNS 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 44.22%±12.15skew +2.32
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$36.10$39.60—$265.00—————
04$26.10$29.80—$275.00—————
11$23.90$27.30—$277.50—————
118$21.60$24.90—$280.00—————
017$18.90$22.70—$282.50—————
114$16.80$20.20—$285.00—————
17$14.70$18.00—$287.50—————
024$12.80$15.40—$290.00—————
24$10.60$13.70—$292.5047.18%$1.15$1.801910
944$8.50$11.10—$295.0046.83%$1.75$2.35322
316$7.10$9.40—$297.5046.92%$2.35$3.3005
557$5.30$7.50—$300.0045.75%$3.20$4.10230
23$4.60$5.60—$302.5044.51%$4.20$5.1004
1956$3.40$4.3043.72%$305.00—$5.00$6.80132
12$2.50$3.4044.33%$307.50—————
1727$1.75$2.6544.63%$310.00—$7.90$10.20322
13314$1.25$1.9044.51%$312.50—————
—————$315.00—$11.60$14.50111
—————$470.00—$165.60$169.1004
—————$475.00—$170.60$174.1004

Forward $302.95. The 25-delta put carries +2.32 volatility points over the 25-delta call.

2026-10-02(10 days)ATM 39.11%±19.63skew +0.89
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$29.30$33.00—$272.50—————
02$25.40$28.40—$277.50—————
02$23.30$26.10—$280.0044.07%$1.15$1.80224
02$21.00$24.10—$282.5043.66%$1.50$2.1514
01$18.80$22.00—$285.00—————
02$16.80$20.00—$287.5039.83%$1.85$2.75101
09$14.80$18.00—$290.0040.49%$2.70$3.303225
04$13.00$15.80—$292.5040.13%$3.30$4.00310
131$11.00$14.40—$295.0040.03%$4.00$4.90221
1031$10.60$11.40—$297.5039.58%$4.80$5.8020
1052$8.30$11.30—$300.0039.80%$5.90$6.90205
181$7.80$8.60—$302.5039.15%$6.90$8.0001
215$6.60$7.4039.10%$305.00—$7.60$10.1040
10$5.60$6.3039.18%$307.50—————
117$4.70$5.3039.16%$310.00—$11.20$12.30100
252$3.90$4.5039.32%$312.50—————
104$3.10$3.8039.16%$315.00—$14.00$16.9080
120$2.60$3.2039.60%$317.50—————
33$1.85$2.6538.81%$320.00—$17.50$20.7050
20$1.55$2.2039.31%$322.50—————
—————$325.00—$21.90$24.9010

Forward $303.25. The 25-delta put carries +0.89 volatility points over the 25-delta call.

2026-10-09(17 days)ATM 39.63%±25.97skew -0.94
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
02$91.10$95.10—$210.00—————
01$37.50$41.00—$265.00—————
—————$275.0043.14%$1.55$2.40122
—————$280.0041.25%$2.20$2.902011
27$20.60$23.70—$285.0040.44%$3.10$3.901710
—————$287.5039.44%$3.40$4.5010
12$16.90$20.30—$290.0040.22%$4.30$5.40230
49$13.50$16.40—$295.0040.04%$6.00$7.1041
14$11.40$13.50—$300.0039.60%$7.90$9.20110
01$10.20$11.90—$302.50—————
11$8.90$10.5039.63%$305.00—$10.40$11.7050
25$6.90$8.4039.90%$310.00—$12.90$15.70130
014$5.00$6.7039.75%$315.00—$16.00$18.9060
06$3.70$5.3040.12%$320.00—$18.80$22.90110
0121$2.60$4.2040.37%$325.00—$23.00$26.3020
24$1.90$2.9539.97%$330.00—$27.60$30.4010
—————$335.00—$31.60$34.9020

Forward $303.65. The 25-delta put carries -0.94 volatility points over the 25-delta call.

2026-10-16(24 days)ATM 38.46%±29.94skew +1.71
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
030$38.40$41.80—$265.0043.13%$1.40$1.906430
185$34.50$37.60—$270.0042.43%$1.95$2.501,05846
060$30.50$33.40—$275.0041.16%$2.60$3.1012121
—————$277.5040.93%$3.10$3.50076
783$26.00$29.30—$280.0040.67%$3.60$4.0012522
322$22.40$24.70—$285.0040.24%$4.80$5.206518
23166$18.90$20.90—$290.0039.58%$6.00$6.8010445
33$16.70$19.40—$292.5039.24%$6.80$7.60314
063$15.80$18.20—$295.0038.64%$7.40$8.602393
—————$297.5038.64%$8.50$9.6003
29230$13.50$14.00—$300.0038.52%$9.60$10.70456
13$11.10$14.00—$302.50—————
2865$10.70$11.8038.46%$305.00—$12.10$13.20140
14124$8.30$9.6037.94%$310.00—$14.20$16.00191
64109$6.90$8.2039.37%$315.00—$17.20$19.20461
1492$5.50$6.5039.37%$320.00—$21.10$23.701390
78349$4.20$4.8038.54%$325.00—$24.60$27.30310
6397$3.20$3.9038.91%$330.00—$29.00$31.40160
1712$2.40$3.0038.86%$335.00—$32.40$35.60330
447$1.60$2.5539.09%$340.00—$36.80$40.0090
1324$1.40$2.0540.26%$345.00—$41.90$44.2060

Forward $303.60. The 25-delta put carries +1.71 volatility points over the 25-delta call.

2026-10-23(31 days)ATM 40.24%±35.65skew +2.71
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
02$96.60$100.50—$205.00—————
01$81.60$85.70—$220.00—————
02$62.30$66.00—$240.00—————
—————$265.0042.29%$1.95$2.709773
—————$270.0042.67%$2.55$3.90130
11$31.50$34.60—$275.0042.85%$3.40$5.2080
02$27.00$30.70—$280.0042.82%$4.50$6.60140
12$23.60$27.20—$285.0041.16%$5.70$7.4081
03$20.00$23.80—$290.0041.60%$7.10$9.70152
03$17.30$20.70—$295.0040.90%$9.00$11.3030
169$14.50$17.20—$300.0040.61%$11.10$13.5002
12$12.50$15.0040.39%$305.00—$13.60$15.9020
114$10.20$12.3039.49%$310.00—$16.00$18.5060
06$8.30$10.8040.10%$315.00—$19.00$22.0020
022$6.60$8.9039.68%$320.00—$21.70$25.1010
22$5.50$7.4040.07%$325.00—————
155$4.30$6.2040.12%$330.00—————
02$3.30$5.2040.20%$335.00—————
—————$340.00—$37.70$41.8010

Forward $304.00. The 25-delta put carries +2.71 volatility points over the 25-delta call.

2026-10-30(38 days)ATM 45.51%±44.64skew +1.78
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
—————$265.0049.03%$3.70$5.8041
03$33.50$37.50—$275.00—————
01$29.90$33.90—$280.0047.35%$6.60$9.9020
02$27.20$30.50—$285.00—————
27$24.00$27.10—$290.0046.02%$10.20$12.6010
02$21.00$24.10—$295.0046.22%$12.20$15.0020
12$18.20$20.90—$300.0045.18%$14.50$16.6041
—————$305.00—$17.00$19.8010
18$13.80$16.4045.58%$310.00—$19.50$22.5020
12$11.70$14.2045.13%$315.00—$22.50$25.4020
1449$10.10$12.3045.19%$320.00—————
123$8.70$10.6045.26%$325.00—————
12$7.10$9.3045.10%$330.00—————
11$5.20$6.9045.57%$340.00—————
02$4.10$6.8046.74%$345.00—————

Forward $304.02. The 25-delta put carries +1.78 volatility points over the 25-delta call.

2026-11-20(59 days)ATM 44.59%±54.70skew +0.93
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
03$53.00$56.10—$255.0047.25%$4.20$5.50370
08$49.00$51.60—$260.0045.78%$5.10$5.80806
03$45.00$48.10—$265.0045.45%$6.10$6.90421
02$41.20$44.30—$270.0045.13%$7.30$8.10651
028$37.50$40.50—$275.0044.68%$8.70$9.3076052
08$34.00$37.30—$280.0044.70%$10.20$11.101684
427$30.90$34.20—$285.0044.42%$11.90$12.80464
038$27.70$30.50—$290.0044.19%$13.60$14.90474
720$24.50$26.90—$295.0043.68%$15.40$17.00759
1951$22.40$25.20—$300.0043.21%$17.30$19.4028517
116$19.90$22.70—$305.0043.72%$20.30$22.00270
455$18.70$20.3044.59%$310.00—$22.60$24.90730
319$16.30$17.4043.34%$315.00—$25.40$27.902940
4173$14.80$15.6043.80%$320.00—$28.80$32.10770
142$13.10$13.8043.72%$325.00—$31.60$35.20631
1874$11.50$12.6044.04%$330.00—$35.80$38.70281
235$10.10$10.9043.72%$335.00—$38.80$41.50340
13710$8.90$9.5043.64%$340.00—$42.80$45.40642
022$7.80$8.5043.84%$345.00—$46.80$49.20570
2231$6.80$7.4043.75%$350.00—$51.10$53.6090
212$5.80$6.5043.62%$355.00—$54.50$57.90100

Forward $305.15. The 25-delta put carries +0.93 volatility points over the 25-delta call.

2026-12-18(87 days)ATM 43.30%±64.84skew +1.15
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
06$104.00$108.10—$200.00—————
01$94.70$98.70—$210.00—————
01$85.30$89.40—$220.00—————
02$76.50$80.20—$230.00—————
08$68.50$71.40—$240.0043.98%$2.75$4.501640
07$60.20$63.30—$250.0044.72%$4.60$6.601185
210$52.40$55.40—$260.0044.75%$7.30$8.502594
0101$45.10$48.30—$270.0043.24%$8.90$11.203072
182$38.30$40.90—$280.0042.90%$12.00$14.50650
046$32.20$35.20—$290.0043.56%$16.80$18.40651
591$27.70$29.10—$300.0043.82%$21.60$23.202788
6165$23.60$24.8043.45%$310.00—$26.30$28.606217
2781$19.50$20.3043.02%$320.00—$32.00$34.50920
560$15.10$17.1042.47%$330.00—$38.60$41.001520
4140$12.80$13.8042.75%$340.00—$46.50$49.101370
1191$9.60$11.4042.17%$350.00—$53.40$56.70392
1125$7.50$9.3042.09%$360.00—$61.30$64.70160
2173$6.70$7.6043.13%$370.00—$70.10$73.10670
189$5.70$6.3043.85%$380.00—$78.70$81.70150
038$4.60$6.0045.24%$390.00—$87.40$90.6040
194194$3.60$4.2044.11%$400.00—————

Forward $306.72. The 25-delta put carries +1.15 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.