Options Skew Analytics

BOIL 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 73.86%±1.45skew -1.43
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
750$5.70$6.30—$15.50—————
2465$5.20$5.80—$16.00—————
521$4.20$5.35—$16.50—————
841$4.10$4.75—$17.00—————
3217$3.50$4.30—$17.50—————
266199$3.30$3.75—$18.00—————
701636$2.70$3.25—$18.50—————
763419$2.45$2.72—$19.0091.96%$0.02$0.07931478
1,030713$2.02$2.29—$19.5080.74%$0.05$0.06546299
9,0731,371$1.60$1.69—$20.0070.96%$0.05$0.10867223
536523$1.19$1.33—$20.5072.22%$0.14$0.19662340
1,1641,225$0.88$1.01—$21.0075.74%$0.30$0.36163285
2,647472$0.56$0.71—$21.5074.57%$0.48$0.58378176
636302$0.33$0.4672.43%$22.00—$0.75$1.0124291
4059$0.20$0.2973.65%$22.50—$1.07$1.393771
1761,635$0.14$0.1978.43%$23.00—$1.44$1.8016129
—————$23.50—$1.88$2.72077
—————$24.00—$2.35$3.3012
24241$0.02$0.0696.44%$25.00—$3.30$4.9543
—————$26.00—$4.30$5.6584
—————$27.00—$5.15$6.7023

Forward $21.61. The 25-delta put carries -1.43 volatility points over the 25-delta call.

2026-10-02(10 days)ATM 74.17%±2.62skew -8.54
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
33175$4.40$5.75—$16.00—————
455$4.90$5.35—$16.50—————
420$4.15$4.75—$17.0076.80%$0.01$0.0667015
316$4.05$4.30—$17.50—————
563$3.55$3.90—$18.0067.54%$0.05$0.07459488
69511$2.96$3.30—$18.50—————
149549$2.43$2.85—$19.00—————
194118$2.28$2.49—$19.50—————
44393$1.71$2.07—$20.0067.74%$0.31$0.4946717
21118$1.39$1.72—$20.5062.76%$0.48$0.5340371
778119$1.11$1.42—$21.0065.99%$0.65$0.861928
7825$0.85$1.1074.05%$21.50—$0.86$1.3824
405221$0.78$0.8276.43%$22.00—$1.13$1.71120
2912$0.52$0.6874.50%$22.50—$1.44$1.701,3200
247177$0.44$0.5376.66%$23.00—$1.82$2.44130
921$0.30$0.4376.28%$23.50—$2.14$3.0510
2017$0.25$0.3478.46%$24.00—————
35226$0.17$0.2483.91%$25.00—————
—————$25.50—$3.75$6.1510
14307$0.06$0.1279.20%$26.00—$4.20$5.1550
—————$27.00—$5.30$6.3510

Forward $21.35. The 25-delta put carries -8.54 volatility points over the 25-delta call.

2026-10-09(17 days)ATM 66.76%±3.09skew +4.18
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
132$6.20$7.75—$14.00—————
021$4.55$6.90—$15.00—————
07$4.05$6.30—$15.50—————
182$4.65$5.80—$16.00—————
02$4.15$4.55—$17.50—————
126$2.53$3.50—$18.50—————
3058$1.97$3.00—$19.0071.79%$0.30$0.474251
894$2.42$2.64—$19.50—————
3266$1.59$2.34—$20.0072.43%$0.52$0.86351
065$1.48$2.00—$20.5072.58%$0.74$1.03120
300440$1.22$1.68—$21.0066.32%$0.96$1.033150
4941$1.00$1.4266.80%$21.50—————
—————$22.00—$1.38$2.251,3030
20102$0.66$0.9466.40%$22.50—$1.72$1.98015
538$0.65$0.7970.94%$23.00—————
4018$0.41$0.6768.25%$23.50—————
1545$0.23$0.3771.34%$25.00—————
—————$26.00—$4.35$6.6050

Forward $21.46. The 25-delta put carries +4.18 volatility points over the 25-delta call.

2026-10-16(24 days)ATM 70.36%±3.85skew -5.93
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$5.55$8.45—$14.00—————
01$5.05$7.30—$14.50—————
028$4.55$6.85—$15.00—————
041$3.80$5.80—$16.00—————
24138$3.65$5.00—$17.00—————
—————$18.0072.12%$0.26$0.435093
—————$18.5073.34%$0.36$0.59214
5901$2.32$3.25—$19.0069.03%$0.50$0.5868659
—————$19.5070.19%$0.62$0.8101
28308$2.30$2.54—$20.0069.59%$0.75$1.0222961
80$1.53$2.22—$20.5069.70%$1.00$1.19121
630591$1.74$1.87—$21.0072.29%$1.16$1.611832
01$1.13$1.6967.60%$21.50—$1.43$1.6602
449567$1.31$1.4074.82%$22.00—$1.66$2.20185
850$1.11$1.2575.48%$22.50—————
1498$0.68$1.0768.89%$23.00—$2.28$3.3538
60$0.74$0.9173.54%$23.50—————
11217$0.67$0.7874.99%$24.00—$2.85$4.1540
279988$0.49$0.5474.96%$25.00—$3.75$5.2510
12856$0.26$0.4273.52%$26.00—$4.60$6.9050
—————$27.00—$5.55$7.2530

Forward $21.36. The 25-delta put carries -5.93 volatility points over the 25-delta call.

2026-10-23(31 days)ATM 68.23%±4.27skew -1.15
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
3839$2.65$3.40—$19.0072.66%$0.57$0.923720
112474$2.70$3.00—$19.5068.87%$0.72$0.95220
025$1.82$2.76—$20.0066.96%$0.87$1.0912930
013$1.86$2.41—$20.50—————
918$1.65$2.15—$21.0070.52%$1.25$1.7721
105$1.30$1.9365.68%$21.50—$1.51$1.7901
55$1.25$1.6968.56%$22.00—$1.78$2.2710
276$0.97$1.5367.52%$22.50—————
8224$1.10$1.3072.60%$23.00—————
1924$0.78$1.1469.06%$23.50—————
10$0.63$0.9968.44%$24.00—$3.05$4.8510
11$0.66$0.8771.88%$24.50—$3.50$4.7510
5643$0.57$0.7772.51%$25.00—————
24$0.49$0.7173.81%$25.50—————
24$0.43$0.6575.16%$26.00—$4.55$6.0510
712$0.20$0.3078.53%$29.00—————
182$0.17$0.2681.53%$30.00—————
—————$31.00—$8.80$10.6010

Forward $21.46. The 25-delta put carries -1.15 volatility points over the 25-delta call.

2026-11-20(59 days)ATM 83.28%±7.13skew -0.10
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
10$5.30$6.35—$16.0080.63%$0.47$0.754171
21$5.25$5.60—$17.00—————
161$3.85$4.90—$18.0082.68%$1.01$1.50180
1110$3.45$4.25—$19.0079.48%$1.36$1.751020
29215$2.96$3.70—$20.00—————
13$2.79$3.20—$21.0077.62%$2.24$2.67020
57$2.12$2.7280.02%$22.00—————
102$2.10$2.3585.14%$23.00—————
31$1.40$2.0179.20%$24.00—$4.05$4.7010
186$1.13$1.7479.31%$25.00—$4.85$6.3010
11$0.91$1.4778.94%$26.00—$5.60$7.0510
414$0.51$0.8082.79%$30.00—————

Forward $21.31. The 25-delta put carries -0.10 volatility points over the 25-delta call.

2026-12-18(87 days)ATM 93.78%±9.81skew -8.03
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
122378$10.95$11.85—$10.00—————
10120$5.60$7.55—$15.00—————
232$5.30$6.85—$16.00—————
011$5.40$6.30—$17.0086.23%$1.34$1.543231
947$5.05$5.60—$18.0088.29%$1.76$2.04690
14180$4.65$5.10—$19.0089.35%$2.24$2.53810
811,052$4.15$4.75—$20.0087.90%$2.65$3.002761
14479$3.80$4.15—$21.0088.16%$3.25$3.503621
12178$3.40$3.8093.49%$22.00—$3.75$4.60391
276$3.20$3.4095.07%$23.00—$4.50$5.00260
48257$2.67$3.1593.61%$24.00—$5.05$5.80460
138539$2.63$2.8296.36%$25.00—$5.65$6.502192
0109$1.95$2.5691.42%$26.00—$6.40$7.15570
0361$1.59$2.3590.27%$27.00—$7.25$8.35260
0118$1.78$2.1595.66%$28.00—$7.90$9.85680
021$1.19$1.9590.39%$29.00—$8.90$9.9590
96342$1.57$1.6996.74%$30.00—$9.70$10.601140
207$1.38$1.6998.58%$31.00—$10.55$12.2030
—————$32.00—$11.45$13.2020
40145$0.98$1.3896.32%$33.00—$12.30$14.0510
025$0.83$1.3096.37%$34.00—————

Forward $21.42. The 25-delta put carries -8.03 volatility points over the 25-delta call.

2027-01-15(115 days)ATM 102.40%±12.20skew -8.68
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
12$11.00$11.95—$10.00—————
3175$6.10$8.00—$15.0090.32%$1.09$1.486932
02$5.80$7.35—$16.0092.03%$1.37$2.02240
012$5.85$6.80—$17.0090.57%$1.82$2.27340
29$5.75$6.30—$18.0091.98%$2.35$2.741670
15301$5.50$5.80—$19.0091.74%$2.80$3.25411
58200$4.95$5.30—$20.0088.78%$3.25$3.6022914
13162$3.80$4.95—$21.0092.36%$4.00$4.3027431
044$3.85$4.5096.34%$22.00—$4.60$5.103510
946$3.65$4.2598.99%$23.00—$5.30$5.85246
14$3.35$3.9098.85%$24.00—$5.90$6.45310
16381$3.30$3.70102.41%$25.00—$6.55$7.0520
899$2.85$3.45100.67%$26.00—$7.35$8.0570
474$2.75$3.10101.14%$27.00—$8.00$8.6030
1516$2.31$2.8698.67%$28.00—$8.80$10.152050
165$1.91$2.6796.70%$29.00—$9.60$11.3020
4163$1.97$2.4699.26%$30.00—$10.25$11.8580
061$1.57$2.2796.45%$31.00—————
259$1.64$2.1699.70%$32.00—————
38$1.29$2.1098.29%$33.00—$12.85$14.3010
016$1.29$1.9199.26%$34.00—$13.60$15.0510

Forward $21.23. The 25-delta put carries -8.68 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.