FTNT option chain Fortinet, Inc.

Expiration Cboe delayed options data · as of 00:34 UTC

Each row is one strike. The left half is the call, the right half the put. Bid/ask are what buyers and sellers currently quote; volume is contracts traded this session; open interest is standing contracts. The highlighted row sits closest to the stock price.

This expiration prices a move of about ±13.4% (136.69–178.90) · ATM IV 44.9% · P/C open interest —

CALLS								Strike	PUTS
Bid	Ask	Vol	OIThe number of option contracts currently outstanding at a strike or expiration. High open interest shows where positions are concentrated.	IV	ΔModel sensitivity of an option's price to a $1 move in the stock; also used as a rough moneyness scale (a 25-delta option is well out of the money).	Γ	Θ		Bid	Ask	Vol	OI	IV	Δ	Γ	Θ
72.10	75.50			96.3%	0.99	0.0005	0.000	85	0	2.13			106.0%	-0.01	0.0005	-0.009
67.15	70.50			88.4%	0.99	0.0007	0.000	90	0	2.14			97.8%	-0.01	0.0007	-0.011
62.20	65.55			81.5%	0.99	0.0009	0.000	95	0	2.16			90.0%	-0.01	0.0009	-0.013
57.25	60.65			75.4%	0.98	0.0012	0.000	100	0	2.19			82.6%	-0.02	0.0012	-0.016
52.35	55.70			69.5%	0.97	0.0017	0.000	105	0	2.24			75.8%	-0.03	0.0017	-0.020
47.45	50.85			64.5%	0.96	0.0022	0.000	110	0	2.33			69.4%	-0.03	0.0023	-0.025
42.60	46.05			60.2%	0.95	0.0030	-0.005	115	0	2.48			63.5%	-0.05	0.0031	-0.030
37.90	41.30			56.8%	0.93	0.0041	-0.015	120	0	2.70			58.1%	-0.06	0.0041	-0.038
33.25	36.70			53.8%	0.91	0.0054	-0.026	125	0	3.05			53.2%	-0.09	0.0054	-0.046
28.80	32.25			51.6%	0.88	0.0069	-0.039	130	0.0500	3.55			49.0%	-0.12	0.0069	-0.056
24.60	28.05			50.1%	0.84	0.0087	-0.052	135	0.6400	4.30			47.3%	-0.16	0.0087	-0.067
21.30	23.70			49.5%	0.79	0.0105	-0.066	140	1.58	5.30			46.1%	-0.21	0.0106	-0.077
16.95	20.40			47.4%	0.73	0.0123	-0.078	145	4.25	5.35			45.5%	-0.27	0.0124	-0.087
13.65	17.20			46.8%	0.66	0.0137	-0.088	150	5.75	7.05			44.5%	-0.34	0.0138	-0.094
11.10	13.65			45.5%	0.59	0.0146	-0.096	155	8.15	9.10			44.6%	-0.41	0.0148	-0.099
9.20	10.65			45.3%	0.51	0.0150	-0.100	160	10.50	11.85	2		44.5%	-0.49	0.0152	-0.100
7.20	8.90			46.0%	0.44	0.0148	-0.100	165	13.35	15.15			45.0%	-0.56	0.0150	-0.098
5.55	6.85			45.4%	0.37	0.0141	-0.097	170	16.10	18.45			43.6%	-0.63	0.0144	-0.093
4.05	5.55			45.3%	0.31	0.0131	-0.092	175	19.50	22.45			43.9%	-0.69	0.0134	-0.085
3.05	4.50	1		45.9%	0.26	0.0119	-0.086	180	23.05	26.35			42.8%	-0.75	0.0122	-0.076
0.7700	4.50			44.4%	0.22	0.0106	-0.078	185	27.20	30.50			42.5%	-0.79	0.0110	-0.065
0.2200	3.85			45.0%	0.18	0.0093	-0.070	190	31.60	34.85			42.2%	-0.83	0.0097	-0.055
0	3.65			47.6%	0.14	0.0080	-0.062	195	36.15	39.35			41.6%	-0.87	0.0085	-0.044
0	3.30			50.0%	0.12	0.0069	-0.055	200	40.85	44.00			40.7%	-0.90	0.0074	-0.034
0	2.99			52.3%	0.10	0.0059	-0.048	205	45.70	48.75			38.2%	-0.92	0.0064	-0.024
0	2.74			54.5%	0.08	0.0050	-0.042	210	50.55	53.55				-0.94	0.0054	-0.015
0	2.59			57.0%	0.06	0.0042	-0.036	215	55.25	58.65				-0.95	0.0048	-0.005
0	2.49			59.6%	0.05	0.0036	-0.031	220	60.15	63.80				-0.97	0.0046	0.000
0	2.39			62.0%	0.04	0.0030	-0.027	225	65.05	68.85				-0.98	0.0039	0.000

Strikes shown: within ±50% of the underlying price. Intrinsic value = max(0, price − strike) for calls, max(0, strike − price) for puts; extrinsic = option price − intrinsic. Greeks and IV as computed by the exchange feed.

Volatility smile — Oct 23, 2026

Volatility page →

Implied volatility per strike for this expiration. Out-of-the-money puts usually price higher IV than calls — the skew.

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FTNT option chain Fortinet, Inc.

Volatility smile — Oct 23, 2026

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