Options Skew Analytics

FTNT 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 48.41%±7.62skew -0.79
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
20$56.80$60.45—$115.00—————
222$51.90$55.45—$120.00—————
03$40.75$44.65—$131.00—————
01$37.50$40.25—$135.00—————
04$32.80$35.25—$140.00—————
05$29.50$32.25—$143.00—————
04$27.25$30.25—$145.00—————
01$25.50$28.25—$147.00—————
05$22.55$25.25—$150.00—————
24$20.10$22.80—$152.50—————
027$17.50$20.30—$155.00—————
03$15.35$17.55—$157.50—————
149$12.50$15.45—$160.00—————
26$10.45$12.75—$162.50—————
254$8.05$10.00—$165.0051.17%$0.43$0.669251
047$6.55$7.65—$167.5049.47%$0.81$1.042929
10191$4.30$5.75—$170.0049.82%$1.50$1.75272134
48378$3.35$3.80—$172.5047.93%$2.33$2.647245
151253$2.30$2.5849.10%$175.00—$3.45$3.959648
859996$1.48$1.6949.83%$177.50—$4.85$6.10141
519273$0.85$1.1050.26%$180.00—$6.70$8.5001

Forward $173.59. The 25-delta put carries -0.79 volatility points over the 25-delta call.

2026-10-02(10 days)ATM 44.67%±12.86skew +0.34
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
02$71.80$75.50—$100.00—————
02$52.50$55.30—$120.00—————
06$47.90$50.35—$125.00—————
03$32.50$35.40—$140.00—————
016$27.70$30.45—$145.00—————
04$23.00$25.55—$150.00—————
022$17.85$20.80—$155.00—————
—————$157.5046.23%$0.45$0.72113
236$13.50$16.30—$160.0046.19%$0.69$1.104211
02$11.65$14.25—$162.5044.29%$1.04$1.331826
8121$9.40$11.30—$165.0044.25%$1.58$1.878621
212$8.10$9.45—$167.5044.75%$2.32$2.64144
392$6.30$7.75—$170.0045.01%$3.20$3.60617
1918$5.40$6.30—$172.5044.49%$4.15$4.7010
3336$4.25$4.9544.71%$175.00—$5.45$6.00960
3167$3.30$3.7544.31%$177.50—$6.55$7.8551
69375$2.46$2.8143.92%$180.00—————
68$1.76$2.1543.91%$182.50—————
11750$1.32$1.6544.66%$185.00—————
215$1.00$1.2645.54%$187.50—————
12143$0.65$1.0846.53%$190.00—————

Forward $173.87. The 25-delta put carries +0.34 volatility points over the 25-delta call.

2026-10-09(17 days)ATM 44.42%±16.68skew -0.15
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$76.90$80.55—$95.00—————
025$67.50$70.35—$105.00—————
02$33.20$35.10—$140.00—————
010$28.40$30.30—$145.00—————
03$23.15$26.10—$150.00—————
05$18.75$21.55—$155.00—————
013$14.55$17.40—$160.0044.05%$1.44$1.86187
10$12.70$14.55—$162.5044.62%$1.94$2.6203
16$10.90$12.80—$165.0044.60%$2.81$3.1540165
679$8.45$8.85—$170.0043.69%$4.30$5.0510
333$7.05$7.45—$172.5043.49%$5.40$6.1502
2248$6.05$6.2544.45%$175.00—$6.70$7.70490
01$4.75$5.2043.70%$177.50—————
1413$3.90$4.3044.01%$180.00—————
140$3.10$3.5043.92%$182.50—————
1263$2.50$2.8744.31%$185.00—————
07$1.98$2.3844.77%$187.50—————
3489$1.59$1.8945.00%$190.00—————
247$0.95$1.5347.32%$195.00—————

Forward $173.95. The 25-delta put carries -0.15 volatility points over the 25-delta call.

2026-10-16(24 days)ATM 44.82%±20.00skew -1.29
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
629$32.95$35.85—$140.0048.72%$0.25$0.3979525
0113$28.35$31.25—$145.0047.76%$0.48$0.6841529
0118$23.75$26.70—$150.0047.06%$0.92$1.12336100
—————$152.5045.70%$0.99$1.48011
3254$19.50$21.25—$155.0045.83%$1.50$1.7976866
—————$157.5045.26%$1.85$2.28016
1395$16.45$17.25—$160.0045.36%$2.48$2.831,117205
120$13.80$15.70—$162.5044.24%$2.81$3.5503
1186$12.15$13.95—$165.0045.10%$3.90$4.3093149
343723$9.55$10.45—$170.0044.77%$5.75$6.25206161
180$8.15$9.00—$172.5044.13%$6.55$7.5501
123636$7.25$7.7544.76%$175.00—$7.85$9.05541
31$6.00$7.1045.50%$177.50—$9.10$10.5510
1381,271$5.10$5.7044.44%$180.00—$10.60$12.00194
21$4.25$5.3045.77%$182.50—$12.20$13.7010
341,312$3.65$4.4045.78%$185.00—$13.95$15.605900
1219$3.00$3.9046.31%$187.50—————
15691$2.57$2.9745.53%$190.00—$17.70$19.55340
6293$1.71$2.0645.60%$195.00—————
30675$1.21$1.6247.34%$200.00—————
2216$0.77$1.2348.14%$205.00—————

Forward $174.05. The 25-delta put carries -1.29 volatility points over the 25-delta call.

2026-10-23(31 days)ATM 45.42%±23.10skew -0.95
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
02$47.55$50.70—$125.00—————
60$33.20$36.15—$140.00—————
10$28.85$31.20—$145.00—————
04$24.30$27.15—$150.0045.27%$1.15$1.502112
07$20.15$23.05—$155.0045.53%$1.98$2.431094
018$16.55$18.90—$160.0045.36%$3.05$3.704023
05$13.25$15.45—$165.0045.86%$4.35$5.75157
1027$10.85$12.35—$170.0045.38%$6.30$7.6585
321$8.50$9.4545.52%$175.00—$8.75$10.15313
716$6.10$7.3044.69%$180.00—$11.20$13.25100
116$4.70$5.7045.77%$185.00—————
116$3.35$4.3545.84%$190.00—————
033$2.38$3.3546.31%$195.00—————
221$1.69$2.3746.13%$200.00—————

Forward $174.52. The 25-delta put carries -0.95 volatility points over the 25-delta call.

2026-11-20(59 days)ATM 58.62%±41.19skew +0.01
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
02$58.75$61.65—$115.00—————
06$54.15$56.95—$120.00—————
—————$125.0059.59%$1.12$1.45513
010$45.35$48.05—$130.0058.86%$1.61$1.959611
012$40.90$43.80—$135.0059.40%$2.39$2.773428
023$36.85$39.65—$140.0058.37%$3.20$3.5018420
012$32.95$35.80—$145.0058.66%$4.25$4.802724
2158$29.45$31.90—$150.0058.37%$5.65$6.001,92122
04$26.10$28.50—$155.0058.06%$7.20$7.502326
233$23.20$25.30—$160.0058.70%$9.00$9.703417
023$20.65$22.20—$165.0058.67%$11.10$11.80614
180118$18.25$18.95—$170.0058.55%$13.40$14.1520511
5658$15.85$16.5058.53%$175.00—$16.05$16.70920
5590$13.75$14.4058.62%$180.00—$17.85$19.75550
25581$11.75$12.5058.42%$185.00—$20.90$22.9020
80182$10.05$10.9558.64%$190.00—$24.15$26.2510
1632$8.50$9.3558.30%$195.00—————
28109$7.10$8.0058.00%$200.00—————
154170$5.10$5.8058.05%$210.00—$39.20$41.4010
10616$3.30$4.5058.17%$220.00—————
914$2.24$3.3558.47%$230.00—————

Forward $174.80. The 25-delta put carries +0.01 volatility points over the 25-delta call.

2026-12-18(87 days)ATM 55.05%±47.13skew +0.13
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
0186$59.90$62.50—$115.00—————
0192$55.55$58.40—$120.0057.20%$1.39$1.8124817
5188$51.15$53.85—$125.0056.15%$1.90$2.2718916
0174$46.75$49.65—$130.0056.52%$2.60$3.202592
072$42.60$45.50—$135.0056.03%$3.45$4.052995
089$38.80$41.65—$140.0055.70%$4.60$5.002889
0120$35.15$38.05—$145.0055.64%$5.85$6.355957
0133$31.65$34.30—$150.0055.54%$7.35$7.853395
9163$28.85$31.00—$155.0055.47%$9.05$9.603188
5932$25.45$27.85—$160.0055.26%$10.90$11.557605
2145$22.65$24.95—$165.0055.14%$13.05$13.707242
8458$20.15$22.25—$170.0054.29%$14.75$16.2573522
9703$18.35$19.05—$175.0054.99%$18.05$18.658852
42868$16.25$16.9054.99%$180.00—$20.90$21.507656
21238$14.15$15.3055.21%$185.00—$22.95$24.701322
7304$12.25$13.3554.64%$190.00—$26.20$28.35100
0578$10.70$11.9054.82%$195.00—————
1286$9.25$10.5054.73%$200.00—$33.00$35.3510
0671$6.95$8.1554.79%$210.00—$40.60$43.1510
228407$5.40$6.3555.41%$220.00—————
476$3.90$4.6554.73%$230.00—————

Forward $175.35. The 25-delta put carries +0.13 volatility points over the 25-delta call.

2027-01-15(115 days)ATM 52.59%±52.04skew +1.11
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
0171$60.85$63.70—$115.00—————
11,146$56.55$59.30—$120.00—————
0503$52.25$54.35—$125.0053.68%$2.49$3.057111
0853$48.10$51.00—$130.0053.77%$2.93$4.403520
0570$44.30$46.90—$135.0054.24%$4.45$5.209865
2195$40.50$43.35—$140.0053.46%$5.40$6.352415
0328$36.95$39.75—$145.0053.65%$7.10$7.605706
1509$33.85$36.35—$150.0053.73%$8.75$9.253842
0181$30.85$33.15—$155.0053.64%$10.55$11.052891
0545$27.65$30.10—$160.0053.27%$12.35$13.054269
13241$24.90$27.20—$165.0052.65%$14.00$15.401811
18379$23.00$23.65—$170.0052.60%$16.25$17.951540
37402$20.65$21.30—$175.0052.57%$18.85$20.551910
77471$18.50$19.1552.53%$180.00—$21.50$23.501750
0182$16.25$17.5552.60%$185.00—$24.50$26.65250
3490$14.70$15.4052.42%$190.00—$27.80$29.7050
0358$12.80$14.1552.53%$195.00—$31.05$33.4510
110298$11.70$12.3052.51%$200.00—————
198$8.80$10.1552.49%$210.00—$41.80$44.6510
41156$6.95$8.1552.82%$220.00—$50.05$52.4510
0414$5.20$6.5052.62%$230.00—————

Forward $176.29. The 25-delta put carries +1.11 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.