Options Skew Analytics

BNTX option chain

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

Data as of 22 September 2026 (end of day)

2026-10-16(24 days)ATM 40.81%±10.59skew -2.54
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
03$19.90$22.50—$80.00—————
06$15.10$17.70—$85.00—————
06$10.80$13.00—$90.0040.23%$0.55$0.702725
20$9.40$10.80—$92.50—————
1017$6.50$9.00—$95.0039.14%$1.25$1.9070322
3278$4.90$7.40—$97.5037.93%$1.90$2.652770
23563$4.20$5.40—$100.0040.67%$3.20$4.0052314
341,697$2.35$3.0040.96%$105.00—$5.40$7.003821
961,849$1.20$1.6041.69%$110.00—$9.20$10.90341
24296$0.65$0.9043.92%$115.00—$13.30$16.00420
1601,309$0.30$0.5045.22%$120.00—$18.00$20.7050
—————$130.00—$27.40$30.4020

Forward $101.20. The 25-delta put carries -2.54 volatility points over the 25-delta call.

2026-11-20(59 days)ATM 50.52%±20.67skew -3.59
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
03$25.60$29.20—$75.00—————
01$21.20$24.50—$80.00—————
01$17.60$19.60—$85.0048.45%$1.35$2.101313
—————$87.5050.13%$2.20$2.75412
—————$90.0049.14%$2.80$3.30165
—————$92.5049.45%$3.50$4.30540
016$10.40$12.30—$95.0048.51%$4.40$5.008100
05$8.90$11.00—$97.5049.12%$5.40$6.3060
4169$7.80$9.50—$100.0048.25%$6.60$7.20451
2282$6.30$7.4050.84%$105.00—$9.40$10.00200
1614$4.60$5.5050.64%$110.00—$12.00$14.7020
6219$3.50$4.2051.85%$115.00—————
54$2.60$3.2052.73%$120.00—————
503$1.90$2.9055.47%$125.00—————
07$1.45$2.4057.21%$130.00—————

Forward $101.76. The 25-delta put carries -3.59 volatility points over the 25-delta call.

2026-12-18(87 days)ATM 48.09%±24.04skew -0.82
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$54.60$58.70—$45.00—————
03$30.50$34.40—$70.00—————
06$21.60$25.20—$80.00—————
—————$85.0047.26%$2.35$2.7053824
01$16.20$18.90—$87.5046.86%$2.85$3.403481
099$14.60$17.50—$90.0048.89%$3.60$4.801,0040
01$12.60$16.20—$92.5049.55%$4.40$6.00470
0331$11.30$14.60—$95.0049.55%$5.30$7.103400
054$9.70$12.80—$97.5049.25%$6.30$8.20650
0158$9.70$11.20—$100.0047.39%$7.60$8.601940
3108$7.80$8.9048.09%$105.00—$10.40$11.50270
268253$6.00$7.0048.07%$110.00—$13.60$14.70400
0271$4.60$5.9049.40%$115.00—$16.70$19.30300
151,659$3.50$4.5049.18%$120.00—$20.80$23.001070
15350$2.65$3.6049.71%$125.00—————
25771$2.05$3.0050.85%$130.00—————
171,191$1.60$2.6052.33%$135.00—————
0202$1.15$1.8551.35%$140.00—————
—————$155.00—$52.00$55.6010

Forward $102.37. The 25-delta put carries -0.82 volatility points over the 25-delta call.

2027-01-15(115 days)ATM 48.10%±27.64skew -1.18
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
03$36.20$38.60—$65.00—————
0135$31.50$34.10—$70.0049.07%$0.70$1.0581834
066$27.40$29.70—$75.0049.02%$1.25$1.8043926
031$25.20$27.70—$77.5047.87%$1.55$2.1027034
0259$24.00$25.70—$80.0049.81%$2.30$2.8513512
07$21.20$23.90—$82.5048.75%$2.45$3.60350
0118$19.40$22.50—$85.0048.11%$3.00$4.201540
05$18.10$20.60—$87.5048.33%$3.50$5.30110
0103$16.30$18.90—$90.0048.02%$4.50$5.908860
085$14.40$17.50—$92.5047.77%$5.30$6.90110
029$13.90$16.40—$95.0047.80%$6.60$7.702510
0184$12.00$14.60—$97.5048.08%$7.60$9.104300
10218$10.70$13.10—$100.0047.92%$8.70$10.403681
0145$8.90$10.6048.13%$105.00—$11.50$13.102810
0446$7.00$8.7047.94%$110.00—$13.80$16.802760
0436$5.70$7.1048.40%$115.00—$17.60$20.20600
4695$4.60$5.8048.82%$120.00—$21.60$24.202440
01,879$3.70$4.7049.12%$125.00—$25.60$28.404520
201208$3.10$3.7049.50%$130.00—$29.90$32.70220
—————$135.00—$34.40$37.10180
1471$1.90$2.8551.26%$140.00—$38.90$41.40110

Forward $102.38. The 25-delta put carries -1.18 volatility points over the 25-delta call.

2027-03-19(178 days)ATM 47.74%±34.48skew +0.28
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01,001$33.10$35.50—$70.00—————
—————$75.0048.61%$2.25$3.1012
019$25.30$28.00—$80.0048.11%$2.90$4.70660
04$23.80$26.30—$82.50—————
012$21.90$24.90—$85.0047.39%$3.90$6.40230
—————$87.5047.12%$4.80$7.1040
08$18.80$21.70—$90.0047.81%$5.60$8.50510
—————$92.5047.32%$6.70$9.2010
08$15.80$19.20—$95.0047.34%$7.80$10.3050
—————$97.5049.50%$10.20$11.4080
210$13.80$15.80—$100.0048.35%$11.40$12.10100
06$12.00$13.5047.73%$105.00—$13.90$14.70130
022$9.60$12.1047.74%$110.00—$16.80$18.00120
012$8.30$10.5048.47%$115.00—$19.80$21.3010
051$6.40$8.7046.94%$120.00—$23.40$25.60180
3102$6.10$7.0047.77%$125.00—————
0136$4.00$6.6046.94%$130.00—$31.00$33.5010
0112$3.40$5.4046.84%$135.00—$34.70$38.00220
029$2.95$4.8047.84%$140.00—————
—————$145.00—$43.50$46.90200

Forward $103.42. The 25-delta put carries +0.28 volatility points over the 25-delta call.

2027-05-21(241 days)ATM 48.31%±41.02skew +0.74
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
02$31.30$34.00—$75.0049.05%$3.00$4.70240
—————$80.0048.76%$3.90$6.5090
011$26.20$29.00—$82.5049.15%$5.20$7.00210
—————$85.0049.24%$5.60$8.4080
—————$87.5048.87%$6.80$8.9020
010$21.70$25.00—$90.0048.83%$7.50$10.2090
07$20.30$22.90—$92.5048.91%$8.90$11.005540
036$19.00$21.60—$95.0049.77%$10.00$12.7040
06$17.70$20.50—$97.5048.42%$10.90$13.4020
0112$16.70$19.10—$100.0048.69%$12.30$14.70130
015$14.20$17.1048.47%$105.00—$14.80$17.5020
011$12.30$15.0048.22%$110.00—$17.90$20.5080
09$10.80$13.2048.38%$115.00—$20.70$24.2010
023$9.40$11.6048.41%$120.00—————
07$7.80$10.1047.72%$125.00—————
013$6.30$9.2047.61%$130.00—$32.20$35.401890
016$5.60$8.2048.19%$135.00—————
019$4.80$7.1048.01%$140.00—————
02$3.90$6.5048.13%$145.00—————
060$3.60$5.6048.46%$150.00—————
14$3.40$4.5048.26%$155.00—————

Forward $104.49. The 25-delta put carries +0.74 volatility points over the 25-delta call.

2027-08-20(332 days)ATM 49.04%±49.35skew -0.62
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$36.50$40.50—$70.00—————
—————$75.0048.85%$4.30$6.30250
—————$80.0048.65%$5.80$7.90291
—————$82.5050.76%$6.70$10.00170
—————$85.0047.53%$6.90$9.80210
05$25.50$29.00—$87.50—————
020$24.00$27.70—$90.00—————
01$23.00$26.20—$92.5048.99%$10.90$13.1020
03$21.50$25.20—$95.00—————
03$19.00$23.50—$100.0048.96%$14.00$17.4020
011$17.00$20.50—$105.0048.48%$16.90$19.60810
02$15.00$19.1048.98%$110.00—————
01$13.40$17.5049.26%$115.00—————
05$10.70$13.2047.80%$125.00—————
428$9.30$11.8047.40%$130.00—————
01$8.40$10.8047.86%$135.00—————
018$7.00$9.9047.46%$140.00—————
01$6.60$9.0048.18%$145.00—————
010$5.10$7.4048.15%$155.00—————
09$3.60$5.6048.51%$170.00—————
03$3.30$5.4049.34%$175.00—————

Forward $105.52. The 25-delta put carries -0.62 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.