Options Skew Analytics

VLO option chain

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

Data as of 23 September 2026 (end of day)

2026-09-25(2 days)ATM 67.37%±18.83skew +2.33
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
03$25.00$28.20—$352.50—————
125$23.10$25.80—$355.00—————
23$20.70$23.50—$357.50—————
231$18.40$21.30—$360.00—————
2516$16.40$19.40—$362.50—————
4124$14.40$17.50—$365.0070.70%$2.35$3.70256103
42$12.40$15.20—$367.5070.21%$3.00$4.4015350
2038$10.70$13.40—$370.0069.88%$3.70$5.301,346856
446$9.30$11.60—$372.5068.44%$4.40$6.20202160
5457$8.30$10.30—$375.0068.22%$5.40$7.301,093245
1426$6.50$8.60—$377.5067.29%$6.40$8.5022085
7265$5.50$7.4067.87%$380.00—$7.60$9.90915221
5322$4.30$6.4067.27%$382.50—$8.90$11.4016242
88102$4.10$5.0068.31%$385.00—$10.40$13.0040981
2458$3.00$4.3067.25%$387.50—$11.90$14.709411
171396$2.55$3.6068.37%$390.00—$14.00$16.4079456
5062$1.95$2.9567.89%$392.50—$15.60$18.40615
—————$395.00—$17.40$19.805049
—————$397.50—$19.70$22.60278
—————$400.00—$22.00$23.8049152
—————$402.50—$23.80$26.803016

Forward $377.60. The 25-delta put carries +2.33 volatility points over the 25-delta call.

2026-10-02(9 days)ATM 54.71%±32.51skew +3.35
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$28.50$31.90—$352.5058.62%$3.40$5.10241
517$26.60$29.90—$355.0058.53%$4.00$5.707526
—————$357.5055.73%$4.50$5.5066
014$23.00$26.10—$360.0054.90%$5.10$6.001,260497
—————$362.5057.45%$5.90$7.80124
125$19.50$22.70—$365.0055.96%$7.00$7.802345
21$17.90$19.90—$367.5054.70%$7.60$8.5057559
4671$16.40$19.20—$370.0056.27%$8.50$10.30184159
90$14.90$18.10—$372.5053.98%$9.40$10.503314
2135$13.50$15.60—$375.0056.56%$10.50$12.90513170
1120$12.20$14.30—$377.5054.11%$11.70$13.0021144
10583$11.40$13.0054.72%$380.00—$12.80$14.2010236
4267$9.80$11.9053.75%$382.50—$14.10$15.80227143
225142$9.10$10.9054.57%$385.00—$15.20$17.007026
1710$8.00$9.8054.01%$387.50—$17.00$19.50422
6262$7.80$8.8055.33%$390.00—$18.40$20.109425
813$6.00$7.9052.99%$392.50—$19.50$22.6041
3653$5.50$7.2053.71%$395.00—$21.70$23.90501
011$4.50$6.6053.19%$397.50—$23.20$25.30127
12898$4.50$5.7054.11%$400.00—$25.30$28.2034640
21136$3.30$5.1052.38%$402.50—$27.40$30.2042

Forward $378.40. The 25-delta put carries +3.35 volatility points over the 25-delta call.

2026-10-09(16 days)ATM 52.38%±41.57skew +2.78
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
—————$345.0054.58%$4.20$5.30277
012$33.40$36.20—$350.0053.72%$5.10$6.403813
03$29.80$32.60—$355.0053.57%$6.50$7.70122
110$26.30$28.60—$360.0053.57%$8.00$9.4011122
27$23.10$25.50—$365.0052.96%$9.70$11.00436
221$20.10$22.70—$370.0052.95%$11.70$13.106035
18$17.80$19.70—$375.0052.33%$13.80$15.201611
1020$15.30$17.0052.55%$380.00—$16.40$17.807328
811$12.60$14.6051.51%$385.00—$18.70$20.805717
2886$10.50$12.6051.31%$390.00—$21.70$24.604514
11$9.60$11.9051.66%$392.50—$23.40$25.1039
169$8.70$10.8051.17%$395.00—$24.60$27.2077
32$7.80$10.2051.34%$397.50—$26.60$29.1030
1229$7.00$9.4051.16%$400.00—$28.50$31.40123
123$6.30$8.6050.97%$402.50—————
1215$5.80$7.7050.77%$405.00—$31.60$34.3090
166$5.10$7.3050.97%$407.50—$34.00$37.00031
2522$4.50$6.7050.80%$410.00—$35.90$38.9090
1829$4.10$6.1050.86%$412.50—$37.90$40.9030
2044$3.60$5.5050.53%$415.00—$39.60$42.9020
05$3.20$5.2050.92%$417.50—————

Forward $379.05. The 25-delta put carries +2.78 volatility points over the 25-delta call.

2026-10-16(23 days)ATM 54.02%±51.43skew +1.25
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
20$39.90$43.00—$345.0055.27%$7.00$7.701610
106206$36.10$39.10—$350.0054.84%$8.30$9.001,4661,498
01$32.60$35.30—$355.0055.29%$9.80$11.0021217
16743$29.20$32.40—$360.0054.85%$11.50$12.60873167
—————$365.0055.61%$13.20$15.4034312
22276$24.20$26.20—$370.0054.29%$15.30$16.70869201
136$21.50$23.40—$375.0055.45%$17.70$19.904339
52239$19.60$20.6053.96%$380.00—$20.00$21.60582269
1113$17.40$18.4054.05%$385.00—$22.80$25.105520
57282$15.40$16.3054.05%$390.00—$25.60$27.3033945
34$14.20$15.3053.67%$392.50—$26.80$29.60186
54332$13.40$14.3053.69%$395.00—$28.70$31.201116
52$12.50$13.4053.60%$397.50—$30.30$32.8010
173326$11.60$12.6053.53%$400.00—$32.00$33.7023811
121$10.90$11.9053.76%$402.50—$33.70$36.20117
02$10.10$11.0053.45%$405.00—$35.50$37.3011
14$9.50$10.4053.75%$407.50—$37.20$39.2010
29402$8.90$9.6053.65%$410.00—$39.00$41.201238
38$8.20$9.0053.59%$412.50—$40.90$42.8020
3342$7.60$8.4053.56%$415.00—$42.80$45.40032
13$7.10$7.8053.59%$417.50—————

Forward $379.30. The 25-delta put carries +1.25 volatility points over the 25-delta call.

2026-10-23(30 days)ATM 53.35%±58.03skew +1.63
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
05$53.60$57.20—$330.0055.06%$5.30$6.2021152
04$49.70$53.30—$335.0054.83%$6.20$7.402714
02$45.90$49.50—$340.0054.17%$7.10$8.606211
02$42.20$45.90—$345.0054.17%$8.30$10.201004
914$38.70$42.30—$350.0053.73%$10.00$11.3020140
1311$35.40$39.10—$355.0054.08%$11.80$13.20376
1218$32.20$35.50—$360.0053.72%$13.10$15.401652
17$29.30$32.20—$365.0053.94%$15.40$17.40276
4328$26.40$29.50—$370.0053.26%$17.40$19.30235
58$23.80$26.80—$375.0053.25%$19.80$21.70313
235$22.00$23.8053.65%$380.00—$22.50$24.506113
2224$19.00$22.0053.26%$385.00—$24.60$27.2095
1175$16.90$19.8053.07%$390.00—$27.90$30.50187
1347$14.90$17.9052.97%$395.00—$30.40$33.40120
59433$13.20$16.0052.85%$400.00—$33.60$37.20130
213$11.50$14.6052.97%$405.00—$37.10$40.00141
150$10.20$13.2053.24%$410.00—$40.70$44.10320
140$8.70$11.8052.92%$415.00—————
374$7.40$10.6052.77%$420.00—$48.20$51.30180
028$6.30$9.4052.55%$425.00—————
879$6.20$8.4053.80%$430.00—$56.10$59.5010

Forward $379.40. The 25-delta put carries +1.63 volatility points over the 25-delta call.

2026-10-30(37 days)ATM 52.24%±63.20skew +1.94
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
02$55.30$58.60—$330.0054.74%$6.40$8.104517
—————$335.0055.49%$7.20$10.30196
22$47.70$51.10—$340.0054.97%$8.90$11.00145109
—————$345.0054.65%$10.50$12.201810
45$40.70$44.40—$350.0055.21%$12.00$14.503513
07$37.50$40.40—$355.0054.80%$13.50$16.303017
523$34.40$37.30—$360.0053.96%$15.30$17.70259
43$31.50$34.30—$365.0054.46%$17.50$20.20364
36$28.70$31.70—$370.0053.97%$19.70$22.10337
77$26.10$29.10—$375.0053.91%$22.00$24.60147
44$25.00$26.40—$380.00—$24.20$27.202219
06$21.40$24.3052.27%$385.00—$27.30$29.7052
425$19.30$21.9051.94%$390.00—$30.20$33.00252
2110$17.30$20.1052.03%$395.00—$33.10$35.70310
940$15.50$18.3052.04%$400.00—$35.70$39.306613
225$13.80$16.6051.95%$405.00—$39.10$42.10440
1249$12.30$14.9051.79%$410.00—$43.10$46.10411
215$10.90$13.5051.79%$415.00—$46.20$49.7070
174$9.60$12.3051.86%$420.00—$49.90$53.3030
09$8.50$11.1051.90%$425.00—————
192$7.50$10.6052.71%$430.00—$57.90$61.2055

Forward $380.00. The 25-delta put carries +1.94 volatility points over the 25-delta call.

2026-11-20(58 days)ATM 52.80%±79.82skew -0.12
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$101.00$104.10—$280.0055.68%$2.15$3.503855
01$92.00$95.20—$290.0056.20%$3.20$5.10366
10$83.20$86.40—$300.0055.85%$4.50$6.70276
11$74.80$78.00—$310.0054.95%$6.00$8.402519
—————$320.0053.86%$8.00$10.102014
—————$330.0052.32%$10.50$11.6018876
24$52.70$55.10—$340.0051.91%$13.30$14.606573
516$46.20$48.60—$350.0052.29%$17.40$18.107565
814$40.20$42.70—$360.0051.52%$20.70$22.20158
669$35.50$37.00—$370.0051.45%$25.30$26.804185
147$29.90$32.4052.70%$380.00—$31.00$32.901036
2232$26.20$27.7052.81%$390.00—$35.80$38.10113
4381$22.40$23.7052.64%$400.00—$42.00$44.504646
139791$19.00$20.3052.57%$410.00—$48.30$51.007110
60123$15.20$17.6052.02%$420.00—$55.50$58.50670
71139$12.80$14.9052.02%$430.00—$63.00$66.00180
2753$10.50$12.9052.14%$440.00—————
116106$8.40$11.1052.03%$450.00—$78.70$82.0020
311$7.50$9.6053.01%$460.00—$87.40$89.6001
336$5.50$8.1052.15%$470.00—————
375$4.20$6.9051.92%$480.00—————

Forward $379.19. The 25-delta put carries -0.12 volatility points over the 25-delta call.

2026-12-18(86 days)ATM 51.62%±95.26skew -0.33
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
1140$103.60$106.70—$280.0053.17%$3.80$5.8032516
052$95.30$97.50—$290.0051.77%$5.70$6.106387
2277$86.80$89.30—$300.0053.28%$7.50$9.3080052
2329$79.10$81.60—$310.0051.53%$9.50$10.3070627
34,606$71.30$73.90—$320.0051.19%$11.90$12.8015,95871
2433$64.10$67.40—$330.0050.96%$14.80$15.7019736
10273$58.00$60.20—$340.0050.86%$18.20$19.10699119
2367$51.40$54.30—$350.0050.71%$21.90$23.0077531
15314$45.80$48.90—$360.0050.72%$26.20$27.4037617
10362$40.60$43.40—$370.0051.73%$31.10$33.50277429
22811$37.00$38.40—$380.0051.76%$36.30$38.8052611
304,334$32.70$34.0051.63%$390.00—$41.70$43.0037430
16390$28.80$30.1051.59%$400.00—$47.70$50.5012820
8134$24.20$26.8050.95%$410.00—$53.90$56.407841
19178$21.10$23.8051.07%$420.00—$61.10$63.40451
5118$18.30$20.9051.00%$430.00—$68.20$70.7090
2280$16.10$18.4051.23%$440.00—$75.80$78.2040
1182$14.00$16.2051.34%$450.00—————
4186$11.80$14.4051.29%$460.00—$91.50$93.7020
2195$10.20$12.7051.45%$470.00—————
893$8.80$11.2051.60%$480.00—————

Forward $380.15. The 25-delta put carries -0.33 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.