Options Skew Analytics

ALNY option chain

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

Data as of 24 September 2026 (end of day)

2026-11-20(57 days)ATM 50.84%±50.32skew +0.34
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$98.40$102.90—$150.00—————
02$93.50$98.00—$155.00—————
01$89.30$92.70—$160.00—————
02$84.50$87.90—$165.00—————
02$79.70$83.10—$170.00—————
02$74.30$78.60—$175.00—————
02$69.70$74.00—$180.00—————
02$65.10$69.30—$185.00—————
02$60.60$64.80—$190.00—————
02$56.10$60.20—$195.00—————
02$44.20$47.50—$210.0052.14%$4.70$5.50172
02$36.60$40.00—$220.0048.23%$5.20$7.90131
02$29.70$33.40—$230.0051.07%$10.00$11.401060
03$24.80$26.40—$240.0050.47%$13.80$15.4050
03$18.60$21.20—$250.0050.28%$18.60$20.30160
02$15.40$16.7051.23%$260.00—————
012$11.50$13.0050.44%$270.00—————
15$8.90$9.8050.24%$280.00—————
112$5.00$7.7047.89%$290.00—————

Forward $250.45. The 25-delta put carries +0.34 volatility points over the 25-delta call.

2026-12-18(85 days)ATM 48.10%±58.45skew +2.14
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$99.30$103.80—$150.00—————
01$75.70$80.20—$175.00—————
060$71.50$75.20—$180.00—————
03$67.00$71.20—$185.00—————
02$62.50$66.90—$190.00—————
01$58.50$62.70—$195.00—————
0154$54.80$58.40—$200.0052.57%$4.20$6.902780
013$46.50$50.90—$210.0050.02%$6.70$7.601620
0473$39.80$43.50—$220.0047.00%$7.50$10.40360
062$33.20$36.50—$230.0048.83%$12.60$13.80330
032$27.30$30.70—$240.0048.59%$16.80$17.901191
043$23.30$24.70—$250.0048.38%$21.50$22.90551
031$18.90$20.2048.03%$260.00—$27.20$28.40122
022$13.80$16.7046.65%$270.00—$33.30$34.503190
028$11.90$12.9047.08%$280.00—$38.50$41.80110
0269$9.30$10.2046.80%$290.00—$46.00$49.702020
0439$5.70$8.2044.86%$300.00—$53.90$57.802060
029$3.90$6.4044.23%$310.00—$62.30$66.5020
—————$320.00—$71.00$75.2040
—————$330.00—$79.80$84.3010
—————$340.00—$89.50$93.6010

Forward $251.82. The 25-delta put carries +2.14 volatility points over the 25-delta call.

2027-01-15(113 days)ATM 46.55%±65.46skew +4.74
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
050$83.00$86.30—$170.00—————
04$77.80$82.20—$175.00—————
019$73.50$77.50—$180.00—————
02$69.10$73.50—$185.00—————
06$65.00$69.40—$190.00—————
05$61.00$65.40—$195.00—————
029$58.00$61.20—$200.0050.71%$6.70$7.50360
024$50.10$53.80—$210.0050.32%$9.20$10.107100
026$43.50$47.00—$220.0049.62%$12.10$13.101970
055$37.00$40.40—$230.0049.05%$15.50$16.801950
0164$31.30$33.70—$240.0048.72%$19.80$21.001430
5670$27.40$28.60—$250.0048.50%$24.70$25.901,1483
023$21.30$24.1046.66%$260.00—$28.50$31.502450
0129$17.30$20.1046.16%$270.00—$34.60$37.50670
113,644$15.60$16.5047.18%$280.00—$41.20$44.002510
7100$12.80$13.8047.17%$290.00—$48.60$52.00990
0495$10.30$11.2046.71%$300.00—$56.20$59.605480
879$6.80$9.2044.89%$310.00—$64.20$67.701080
064$5.20$7.5044.64%$320.00—$72.50$76.101980
197$4.10$5.9044.39%$330.00—$81.00$85.40110
—————$340.00—$90.40$94.303010

Forward $252.74. The 25-delta put carries +4.74 volatility points over the 25-delta call.

2027-03-19(176 days)ATM 48.24%±85.29skew +2.91
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
054$95.50$98.90—$160.00—————
—————$165.0054.16%$3.80$5.401010
01$87.00$90.40—$170.00—————
—————$185.0052.13%$6.00$9.8020
05$70.70$75.10—$190.0050.12%$7.00$9.6010
02$67.60$71.30—$195.0049.68%$8.00$10.8020
—————$200.0051.15%$10.90$12.101,514549
048$57.40$60.60—$210.0049.44%$12.50$15.20130
02$50.60$55.00—$220.0049.42%$16.10$18.90240
037$45.20$48.20—$230.0049.16%$20.10$22.90100
09$39.50$42.60—$240.0049.01%$24.50$27.60620
3258$34.80$36.90—$250.0049.21%$30.30$32.302211
0103$30.00$32.8048.87%$260.00—$34.70$38.10900
033$25.70$28.6048.21%$270.00—$40.90$43.8011
1413$22.30$24.8047.90%$280.00—$47.10$50.101510
0127$18.90$21.7047.53%$290.00—$54.00$56.901600
017$16.00$19.4047.61%$300.00—$61.20$64.9080
017$13.50$16.4046.96%$310.00—$68.50$72.9040
0127$11.50$14.1046.76%$320.00—$76.60$80.00100
058$9.60$12.2046.53%$330.00—————
025$8.10$10.5046.40%$340.00—$93.50$97.2030

Forward $254.65. The 25-delta put carries +2.91 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.