FTNT option chain Fortinet, Inc.

Expiration Cboe delayed options data · as of 15:38 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 ±12.3% (149.66–191.56) · ATM IV 87.9% · P/C open interest 0.87

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
79.35	82.70			178.8%	1.00	0.0001	0.000	90	0	2.13			225.8%	-0.00	0.0001	-0.003
74.30	77.50		2	150.7%	1.00	0.0001	0.000	95	0	2.13			209.3%	-0.00	0.0001	-0.005
69.40	72.85		2	158.6%	1.00	0.0002	-0.000	100	0	2.13		3	193.6%	-0.00	0.0002	-0.008
64.30	67.90		29	143.5%	1.00	0.0004	-0.006	105	0	2.13			178.6%	-0.00	0.0004	-0.014
59.40	62.20			135.6%	0.99	0.0006	-0.015	110	0	2.15		2	164.6%	-0.01	0.0006	-0.022
54.40	57.75		3	117.2%	0.99	0.0009	-0.028	115	0	2.18		1	151.2%	-0.01	0.0009	-0.035
49.55	52.90			113.8%	0.98	0.0015	-0.047	120	0	0.2100		649	91.1%	-0.02	0.0015	-0.053
44.65	47.80		1	102.2%	0.97	0.0022	-0.074	125	0	2.36		1	127.2%	-0.03	0.0022	-0.079
40.95	42.80		5	111.6%	0.96	0.0032	-0.109	130	0.0100	0.8200		57	91.0%	-0.04	0.0033	-0.114
35.20	38.55	1	2	99.1%	0.93	0.0046	-0.153	135	0.4900	0.9300	1	71	90.1%	-0.07	0.0046	-0.157
30.70	33.60			92.6%	0.90	0.0062	-0.205	140	1.15	1.40	1	115	91.6%	-0.10	0.0062	-0.209
26.40	29.10			90.2%	0.86	0.0079	-0.263	145	1.79	2.09		101	90.5%	-0.14	0.0080	-0.267
22.55	24.95		7	90.2%	0.81	0.0098	-0.323	150	2.63	3.10	1	211	89.6%	-0.19	0.0098	-0.326
20.60	22.95			89.2%	0.79	0.0107	-0.352	152.5	2.84	4.80			93.6%	-0.21	0.0107	-0.355
19.30	20.95		24	90.9%	0.76	0.0116	-0.379	155	3.85	4.35	4	534	88.9%	-0.24	0.0116	-0.382
17.60	19.25			91.0%	0.72	0.0124	-0.404	157.5	4.60	5.10	1		88.7%	-0.28	0.0124	-0.407
16.20	17.65		16	92.1%	0.69	0.0131	-0.426	160	5.50	5.95	3	604	88.7%	-0.31	0.0132	-0.429
14.15	16.15		1	89.8%	0.66	0.0138	-0.445	162.5	5.70	6.85		11	85.0%	-0.35	0.0138	-0.447
13.00	14.00		16	87.9%	0.62	0.0143	-0.460	165	7.35	8.25	10	466	89.2%	-0.38	0.0144	-0.462
11.40	13.40		25	90.0%	0.58	0.0147	-0.470	167.5	8.05	9.05	12	8	85.8%	-0.42	0.0147	-0.473
10.40	11.70	38	83	89.2%	0.54	0.0150	-0.477	170	9.50	10.30	4	356	86.7%	-0.46	0.0150	-0.479
9.15	10.60			89.0%	0.51	0.0151	-0.479	172.5	11.05	11.60	3	29	87.4%	-0.49	0.0151	-0.480
8.25	9.25	26	818	88.5%	0.47	0.0151	-0.476	175	12.40	13.20		139	87.7%	-0.53	0.0151	-0.478
7.40	7.75		2	86.8%	0.43	0.0149	-0.470	177.5	13.70	14.55	1	9	86.0%	-0.57	0.0150	-0.471
6.50	7.10	10	1,503	87.8%	0.40	0.0147	-0.459	180	14.90	16.20	1	84	84.3%	-0.60	0.0147	-0.460
5.70	6.50	3	4	88.8%	0.36	0.0143	-0.445	182.5	16.90	18.00		5	86.0%	-0.64	0.0143	-0.446
4.90	5.60		87	87.7%	0.33	0.0138	-0.429	185	18.60	20.70		83	89.9%	-0.67	0.0139	-0.429
4.30	4.95	2	8	87.9%	0.30	0.0132	-0.409	187.5	20.45	22.25		2	88.6%	-0.70	0.0133	-0.409
3.70	4.20	7	160	87.1%	0.27	0.0126	-0.388	190	22.15	23.80		19	85.7%	-0.73	0.0127	-0.388
2.95	3.90		12	87.0%	0.24	0.0119	-0.365	192.5	24.05	26.50		22	89.0%	-0.76	0.0120	-0.364
2.71	3.15	17	157	86.6%	0.22	0.0112	-0.341	195	26.05	28.45		7	88.4%	-0.79	0.0113	-0.340
2.19	3.05		43	87.8%	0.19	0.0105	-0.317	197.5	27.80	30.70			87.3%	-0.81	0.0106	-0.316
1.94	2.33	19	118	86.1%	0.17	0.0097	-0.293	200	30.20	32.45		12	86.4%	-0.83	0.0098	-0.291
1.64	2.12		4	86.9%	0.15	0.0090	-0.269	202.5	32.05	34.95			86.1%	-0.85	0.0091	-0.267
1.36	1.61	1	694	84.9%	0.13	0.0082	-0.245	205	34.35	37.15		4	86.3%	-0.87	0.0083	-0.244
1.15	1.55	3	2	86.6%	0.12	0.0075	-0.223	207.5	36.25	39.45			83.2%	-0.89	0.0076	-0.221
0.9700	1.25	2	58	85.9%	0.10	0.0068	-0.201	210	39.15	41.65			87.8%	-0.90	0.0069	-0.200
0.7800	1.12		4	86.1%	0.09	0.0062	-0.181	212.5	41.25	44.00			85.7%	-0.91	0.0063	-0.179
0.6900	1.00		55	87.2%	0.08	0.0056	-0.162	215	43.80	46.25			86.7%	-0.93	0.0057	-0.160
0.4500	0.8900	5	40	89.2%	0.06	0.0044	-0.128	220	48.35	50.55			70.5%	-0.95	0.0046	-0.126
0.2800	0.8800	6	77	92.5%	0.04	0.0035	-0.099	225	53.10	55.55				-0.96	0.0036	-0.097
0.0500	0.5000		32	86.3%	0.03	0.0027	-0.076	230	57.80	60.90				-0.97	0.0029	-0.073
0.0200	0.5700		34	92.4%	0.02	0.0021	-0.057	235	62.70	65.90				-0.98	0.0022	-0.054
0	0.5500		18	96.3%	0.02	0.0016	-0.043	240	67.75	70.90				-0.99	0.0016	-0.039
0	0.7000		1	104.9%	0.01	0.0012	-0.031	245	72.75	75.90				-0.99	0.0011	-0.028
0	0.4700		6	103.2%	0.01	0.0009	-0.023	250	77.70	80.90				-1.00	0.0006	-0.022
0	0.3000	10	6	101.2%	0.01	0.0006	-0.017	255	82.65	85.85				-1.00	0.0003	-0.019

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 30, 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 30, 2026

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