MRK option chain Merck & Co., Inc.

Expiration Cboe delayed options data · as of 15:41 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 ±6.7% (135.35–154.90) · ATM IV 48.0% · P/C open interest 0.20

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
64.75	67.25			202.3%	1.00	0.0002	-0.001	80	0	2.13		4	219.8%	-0.00	0.0002	-0.008
59.70	62.30			184.1%	1.00	0.0003	-0.004	85	0	0.0100		7	99.2%	-0.00	0.0003	-0.011
54.50	57.30			161.7%	1.00	0.0005	-0.007	90	0	2.13		1	182.7%	-0.00	0.0005	-0.013
49.50	52.30			145.7%	0.99	0.0006	-0.010	95	0	2.13			165.5%	-0.01	0.0006	-0.016
44.75	47.30			135.8%	0.99	0.0009	-0.013	100	0	2.13			149.0%	-0.01	0.0009	-0.019
39.80	42.35			122.6%	0.99	0.0013	-0.017	105	0	1.80		1	128.0%	-0.01	0.0013	-0.022
34.80	37.35			107.9%	0.99	0.0018	-0.021	110	0	1.84		14	113.7%	-0.01	0.0018	-0.025
29.85	32.40			95.2%	0.98	0.0026	-0.026	115	0	1.80		28	98.7%	-0.02	0.0027	-0.030
24.65	27.50		2	79.9%	0.97	0.0042	-0.036	120	0.0100	0.2500	1	111	56.5%	-0.03	0.0043	-0.039
20.15	22.65		10	73.7%	0.95	0.0075	-0.058	125	0.1900	0.6100		89	57.6%	-0.05	0.0076	-0.060
16.60	17.45	2		54.4%	0.91	0.0120	-0.089	129	0.3900	0.7400		20	52.3%	-0.09	0.0121	-0.091
15.45	16.50	2	19	50.6%	0.90	0.0134	-0.098	130	0.4700	0.7900	98	82	51.2%	-0.10	0.0134	-0.101
14.85	15.60	1		54.2%	0.89	0.0148	-0.108	131	0.5300	1.08		33	52.3%	-0.12	0.0149	-0.111
13.95	14.70	3	5	53.1%	0.87	0.0163	-0.119	132	0.7100	1.18	2	48	52.1%	-0.13	0.0164	-0.121
13.05	13.95	2		53.2%	0.85	0.0179	-0.130	133	0.7600	1.18		316	49.7%	-0.15	0.0180	-0.132
12.10	13.20	2		53.6%	0.83	0.0195	-0.140	134	0.8400	1.34		46	48.8%	-0.17	0.0196	-0.143
11.40	12.55	2	15	53.4%	0.81	0.0211	-0.151	135	1.20	1.43	9	197	49.3%	-0.19	0.0213	-0.153
10.65	11.95		1	54.5%	0.79	0.0227	-0.162	136	1.21	1.64		150	47.8%	-0.21	0.0229	-0.164
9.90	11.25		10	54.5%	0.77	0.0243	-0.172	137	1.51	1.87	3	157	48.1%	-0.23	0.0245	-0.174
9.15	10.55		27	54.3%	0.74	0.0258	-0.181	138	1.55	2.14		49	46.7%	-0.26	0.0260	-0.183
8.30	9.15		2	49.1%	0.71	0.0272	-0.190	139	1.90	2.41		28	46.9%	-0.29	0.0274	-0.192
7.60	9.10		1,271	52.4%	0.69	0.0286	-0.198	140	2.51	2.70	157	391	48.3%	-0.32	0.0288	-0.200
7.10	8.80		21	54.8%	0.66	0.0297	-0.205	141	2.53	3.15		47	46.9%	-0.35	0.0300	-0.207
6.45	7.00		28	48.2%	0.63	0.0308	-0.211	142	3.10	3.50	2	27	47.7%	-0.38	0.0310	-0.213
5.75	6.50		134	48.0%	0.59	0.0316	-0.215	143	3.50	4.00	3	133	48.0%	-0.41	0.0318	-0.217
5.30	5.95	41	62	48.4%	0.56	0.0322	-0.219	144	3.30	4.40		95	44.4%	-0.44	0.0324	-0.220
4.75	5.45		62	48.3%	0.53	0.0326	-0.220	145	4.50	4.85	2	351	47.8%	-0.47	0.0328	-0.222
4.40	4.85		1,258	48.3%	0.50	0.0327	-0.221	146	5.15	5.35	21	86	48.3%	-0.51	0.0329	-0.222
4.05	4.30	11	3,292	48.3%	0.47	0.0326	-0.219	147	5.30	6.00		96	46.7%	-0.54	0.0329	-0.221
3.55	4.05	6	171	48.7%	0.43	0.0323	-0.217	148	5.45	6.55		85	44.3%	-0.57	0.0326	-0.218
3.05	3.65		135	48.1%	0.40	0.0318	-0.213	149	5.65	7.25		43	42.5%	-0.60	0.0320	-0.214
2.80	3.25	3	465	48.4%	0.37	0.0311	-0.208	150	7.15	7.90		19	46.9%	-0.63	0.0313	-0.209
1.99	2.28		2,958	47.0%	0.30	0.0286	-0.190	152.5	8.95	9.65		24	47.1%	-0.71	0.0288	-0.191
1.46	1.66	2	805	47.3%	0.24	0.0253	-0.167	155	9.60	11.60		43	38.4%	-0.77	0.0256	-0.168
1.05	1.23	7	253	47.7%	0.18	0.0217	-0.142	157.5	11.60	13.95		10	38.3%	-0.82	0.0220	-0.143
0.7400	0.8900	6	2,180	48.0%	0.14	0.0180	-0.118	160	13.75	15.85		1		-0.87	0.0184	-0.119
0.5000	0.7800	2	141	49.7%	0.10	0.0146	-0.097	162.5	15.75	18.30				-0.90	0.0150	-0.098
0.2900	0.6200		199	50.1%	0.08	0.0118	-0.081	165	18.10	20.55				-0.93	0.0122	-0.082
0.1600	1.00		248	57.8%	0.06	0.0096	-0.070	167.5	20.45	23.40				-0.94	0.0100	-0.071
0.0800	0.8000	2	384	58.4%	0.05	0.0080	-0.063	170	22.95	25.35				-0.95	0.0084	-0.064
0.0300	1.95		7	76.0%	0.05	0.0069	-0.059	172.5	25.40	27.80				-0.96	0.0073	-0.060
0	1.75		9	78.0%	0.04	0.0060	-0.058	175	27.80	30.40				-0.97	0.0064	-0.058
0.0500	0.2500		22	61.3%	0.04	0.0048	-0.056	180	32.80	35.25				-0.97	0.0051	-0.055
0.0100	1.33	4	12	88.9%	0.03	0.0040	-0.054	185	37.85	40.40				-0.98	0.0042	-0.053
0	1.35		2	96.5%	0.03	0.0033	-0.052	190	42.85	45.40				-0.98	0.0036	-0.051
0	0.0900		73	68.2%	0.03	0.0028	-0.051	195	47.85	50.40				-0.98	0.0031	-0.048
0	0.0600		32	70.1%	0.02	0.0024	-0.049	200	52.85	55.40				-0.98	0.0026	-0.046
0	1.55		4	120.1%	0.02	0.0021	-0.047	205	57.85	60.40				-0.99	0.0022	-0.044
0	1.80		1	130.4%	0.02	0.0019	-0.045	210	62.85	65.50				-0.99	0.0020	-0.042
0	1.15			125.4%	0.02	0.0017	-0.043	215	67.80	70.35				-0.99	0.0017	-0.039

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

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

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MRK option chain Merck & Co., Inc.

Volatility smile — Oct 30, 2026

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