Options Skew Analytics

ALGN option chain

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

Data as of 24 September 2026 (end of day)

2026-10-02(8 days)ATM 37.50%±8.15skew +1.57
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
—————$141.0040.63%$1.00$1.55110
—————$144.0038.12%$1.75$2.30430
—————$145.0037.88%$2.05$2.753912
40$3.40$4.10—$146.0037.96%$2.50$3.2072
06$2.80$3.6037.48%$147.00—$2.90$3.7010
07$2.45$3.1037.88%$148.00—$3.40$4.2060
07$2.05$2.7038.02%$149.00—$4.00$4.9010
218$1.70$2.3037.92%$150.00—$4.70$5.50111
02$1.10$1.6039.06%$152.50—$6.20$8.0030
028$0.70$1.1040.24%$155.00—————
—————$160.00—$10.10$15.80100
—————$165.00—$14.80$22.3040

Forward $146.90. The 25-delta put carries +1.57 volatility points over the 25-delta call.

2026-10-16(22 days)ATM 38.09%±13.73skew -0.60
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$16.40$21.60—$130.00—————
01$12.20$17.30—$135.0040.98%$1.30$1.9011112
—————$136.0040.47%$1.45$2.1055
01$8.70$10.60—$140.0038.79%$2.30$3.102351
—————$141.0039.27%$2.60$3.60100
03$5.50$7.20—$145.0037.91%$4.20$4.90452
—————$147.00—$5.00$5.80560
15771$3.60$4.6038.28%$150.00—$6.60$7.50863
06$2.70$3.7038.23%$152.50—$8.00$9.2011
4069$2.00$2.9038.12%$155.00—$9.90$11.00400
250$1.65$2.3539.39%$157.50—————
53114$1.20$1.7539.03%$160.00—$12.90$15.70462
—————$165.00—$17.70$21.60240
—————$170.00—$19.80$27.3090
—————$175.00—$24.10$32.7030

Forward $146.80. The 25-delta put carries -0.60 volatility points over the 25-delta call.

2026-12-18(85 days)ATM 44.39%±31.74skew +3.18
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
02$63.60$72.20—$80.00—————
01$37.60$41.90—$110.00—————
01$32.70$37.90—$115.0050.89%$2.20$2.751070
0193$28.90$34.80—$120.0051.36%$2.85$4.30290
—————$125.0048.31%$3.80$4.704980
—————$130.0047.50%$5.00$6.101370
015$18.30$24.00—$135.0046.67%$6.50$7.702810
0133$15.80$18.00—$140.0046.12%$8.30$9.701440
038$12.30$15.20—$145.0046.85%$10.80$12.30780
0203$11.00$12.4044.34%$150.00—$12.80$14.201841
69$8.90$10.6044.54%$155.00—$15.80$17.902420
010$7.20$8.7044.26%$160.00—$17.10$21.202280
05,030$5.90$7.1044.30%$165.00—$19.70$25.10240
0129$4.70$5.8044.22%$170.00—$24.00$28.80450
0208$3.70$4.8044.32%$175.00—$27.50$33.10330
0255$2.80$3.8043.82%$180.00—$31.90$37.80690
0110$2.40$3.2044.82%$185.00—$36.00$42.6060
—————$190.00—$40.90$47.10500
054$1.70$2.6047.40%$195.00—$47.00$51.301710
—————$200.00—$50.40$56.601350
—————$210.00—$59.90$66.20220

Forward $148.18. The 25-delta put carries +3.18 volatility points over the 25-delta call.

2027-01-15(113 days)ATM 43.17%±35.74skew +2.92
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
083$46.40$53.60—$100.00—————
02$42.10$48.90—$105.00—————
02$38.10$43.60—$110.0051.82%$2.10$3.40990
011$34.50$40.10—$115.0049.22%$2.65$3.901170
24165$31.50$33.30—$120.0047.41%$3.60$4.501370
046$27.00$32.20—$125.0046.58%$4.70$5.701481
037$23.50$28.10—$130.0046.08%$6.10$7.204700
045$20.60$24.30—$135.0044.71%$7.40$8.80510
0163$17.30$22.20—$140.0044.58%$9.30$11.001690
028$14.80$16.90—$145.0044.37%$11.50$13.402040
0647$12.70$14.7043.78%$150.00—$14.10$15.703650
0111$10.50$12.3042.96%$155.00—$16.90$18.801080
041$8.70$10.5042.89%$160.00—$17.60$22.103020
09$7.20$8.7042.54%$165.00—$21.00$25.601340
0128$5.90$7.2042.28%$170.00—$24.50$30.004780
048$4.90$6.2042.73%$175.00—$28.40$33.401470
0648$4.10$5.3043.16%$180.00—$32.50$38.105610
0144$3.20$4.5043.03%$185.00—$36.80$42.00640
0213$2.70$3.7043.20%$190.00—$40.90$47.80210
0152$2.20$2.9542.95%$195.00—$45.50$52.201010
—————$200.00—$50.30$56.50380

Forward $148.78. The 25-delta put carries +2.92 volatility points over the 25-delta call.

2027-03-19(176 days)ATM 44.63%±46.47skew +5.77
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$58.10$64.20—$90.00—————
—————$100.0049.85%$1.90$3.00240
—————$115.0048.40%$4.80$5.7010
—————$120.0047.83%$5.90$7.1080
010$31.10$36.60—$125.0047.64%$7.70$8.406610
—————$130.0046.68%$8.90$10.2020
09$22.50$25.80—$140.0045.98%$12.80$14.3010
25$20.00$21.60—$145.0046.24%$15.60$16.60248
1216$17.70$19.0045.34%$150.00—$17.60$19.2030
31$15.40$16.8044.82%$155.00—$20.50$22.10111
04$13.40$14.8044.44%$160.00—$23.60$25.1053
01$11.60$13.1044.22%$165.00—$24.50$28.4030
03$10.00$11.6044.07%$170.00—$27.80$32.1010
01$8.70$10.0043.74%$175.00—————
05$7.50$8.8043.67%$180.00—$35.00$39.9010
01$6.60$7.7043.78%$185.00—————
03$4.50$6.7041.87%$190.00—$43.00$49.9010
031$4.80$5.9043.56%$195.00—————
02$4.10$5.2043.58%$200.00—————
01$3.00$4.2044.00%$210.00—$60.80$66.8060
—————$220.00—$70.30$76.5010

Forward $149.95. The 25-delta put carries +5.77 volatility points over the 25-delta call.

2027-06-17(266 days)ATM 46.16%±59.79skew +0.54
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$65.10$71.40—$85.00—————
—————$100.0051.72%$3.70$5.9010
—————$110.0050.09%$5.90$7.90110
—————$120.0049.25%$9.10$10.50027
—————$125.0045.71%$7.70$12.80300
06$32.90$39.00—$130.0048.46%$11.90$14.801320
—————$135.0047.70%$13.90$16.5030
—————$145.0047.25%$18.70$21.0001
—————$150.0046.89%$21.20$23.5031
09$18.50$21.3046.37%$160.00—$26.70$29.10100
02$16.50$19.6046.12%$165.00—————
01$15.00$17.8045.99%$170.00—$32.20$36.3040
07$11.80$15.0045.56%$180.00—$38.90$43.3010
—————$185.00—$41.00$46.8020
041$7.80$10.3045.40%$200.00—————
03$6.00$8.7045.18%$210.00—$62.10$67.7010
01$4.60$7.2044.84%$220.00—————
01$3.60$6.0044.77%$230.00—————

Forward $151.74. The 25-delta put carries +0.54 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.