MRK option chain Merck & Co., Inc.

Expiration Cboe delayed options data · as of 18:36 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 ±5.7% (141.66–158.81) · ATM IV 28.8% · P/C open interest 0.54

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
68.40	71.60				1.00	0.0000	0.000	80	0	2.13			161.7%	-0.00	0.0001	-0.002
63.75	66.60				1.00	0.0000	0.000	85	0	2.13		1	148.3%	-0.00	0.0002	-0.003
58.80	61.60				1.00	0.0001	0.000	90	0	1.81		10	130.8%	-0.00	0.0002	-0.003
53.80	56.60				1.00	0.0001	0.000	95	0	0.7600		1	100.5%	-0.00	0.0003	-0.004
48.80	51.60				1.00	0.0001	0.000	100	0	0.9500		11	94.4%	-0.00	0.0004	-0.004
43.40	46.60				1.00	0.0002	0.000	105	0	1.00		14	85.5%	-0.00	0.0006	-0.005
38.40	41.60				1.00	0.0004	0.000	110	0	0.7700		26	72.3%	-0.01	0.0009	-0.006
33.55	36.65		6		1.00	0.0006	0.000	115	0	1.16		26	69.0%	-0.01	0.0014	-0.008
32.45	35.65		6		1.00	0.0007	0.000	116	0	1.15		4	67.1%	-0.01	0.0015	-0.009
31.85	34.65		7		1.00	0.0008	0.000	117	0	1.35		2	67.6%	-0.01	0.0016	-0.009
30.35	33.65		1		1.00	0.0009	0.000	118	0	1.01		9	61.7%	-0.01	0.0018	-0.009
29.85	32.65				1.00	0.0010	0.000	119	0	1.28		2	63.1%	-0.01	0.0020	-0.010
28.55	31.65		1		0.99	0.0012	0.000	120	0.0100	0.8800		52	56.6%	-0.01	0.0022	-0.011
27.85	30.65				0.99	0.0013	0.000	121	0	1.22		7	58.8%	-0.01	0.0024	-0.011
26.50	29.65		2		0.99	0.0015	0.000	122	0	1.15		16	56.2%	-0.02	0.0027	-0.012
25.85	28.65		2		0.99	0.0018	0.000	123	0	1.01		6	52.8%	-0.02	0.0030	-0.013
24.40	27.65				0.99	0.0020	0.000	124	0	1.55		5	56.6%	-0.02	0.0034	-0.014
23.45	26.65				0.99	0.0024	0.000	125	0.0300	1.11		27	50.8%	-0.02	0.0038	-0.015
22.90	25.65		2		0.99	0.0027	0.000	126	0	1.01		7	47.6%	-0.02	0.0043	-0.017
21.50	24.70		2		0.99	0.0032	-0.001	127	0	1.19		14	47.8%	-0.03	0.0049	-0.018
20.50	23.50		3		0.98	0.0037	-0.003	128	0	1.01		16	44.2%	-0.03	0.0055	-0.020
19.60	22.50		2		0.98	0.0044	-0.005	129	0	1.01		5	42.5%	-0.04	0.0062	-0.021
18.50	21.30		7		0.98	0.0051	-0.007	130	0.0400	0.5000		17	35.4%	-0.04	0.0070	-0.023
17.55	20.35		1		0.97	0.0060	-0.010	131	0.1700	1.14		7	41.7%	-0.05	0.0080	-0.026
16.60	19.35		1		0.97	0.0071	-0.013	132	0	0.9600		5	36.9%	-0.05	0.0091	-0.028
15.85	18.40		5		0.96	0.0083	-0.017	133	0	1.15		306	36.8%	-0.06	0.0103	-0.031
14.90	17.45		17		0.96	0.0097	-0.020	134	0	0.7500		3	31.5%	-0.07	0.0116	-0.034
13.85	16.30		34		0.95	0.0113	-0.024	135	0.2200	0.7500		44	31.8%	-0.08	0.0132	-0.037
13.10	15.55		9		0.94	0.0132	-0.029	136	0.0500	0.9500		4	30.4%	-0.09	0.0149	-0.041
12.20	14.60		2		0.92	0.0152	-0.034	137	0.2500	0.9600		4	30.2%	-0.11	0.0167	-0.044
11.25	13.40		20		0.91	0.0176	-0.040	138	0.2800	1.15		74	29.9%	-0.12	0.0188	-0.048
10.35	12.85		19	23.2%	0.89	0.0201	-0.045	139	0.0500	1.40		4	28.2%	-0.14	0.0210	-0.053
9.60	12.00		525	25.5%	0.87	0.0229	-0.051	140	0.4700	1.25		224	28.2%	-0.16	0.0233	-0.057
8.65	11.15		104	25.1%	0.85	0.0257	-0.058	141	0.2600	1.44		4	26.0%	-0.18	0.0257	-0.062
7.80	10.35		6	25.4%	0.82	0.0286	-0.064	142	0.5900	1.64		55	26.5%	-0.21	0.0282	-0.066
7.20	8.95			23.4%	0.79	0.0315	-0.070	143	0.7600	1.91		20	26.6%	-0.24	0.0306	-0.071
6.40	8.90		10	27.0%	0.76	0.0343	-0.076	144	1.27	2.20		16	27.6%	-0.27	0.0329	-0.075
5.70	8.25		374	27.4%	0.72	0.0367	-0.081	145	1.57	2.48		251	27.4%	-0.31	0.0350	-0.079
5.00	7.60		2	27.4%	0.69	0.0388	-0.086	146	1.43	2.84		2	25.7%	-0.34	0.0368	-0.083
4.80	5.95	2	81	25.1%	0.65	0.0404	-0.089	147	1.71	3.70		14	26.9%	-0.38	0.0383	-0.086
4.00	5.40		4	24.8%	0.60	0.0416	-0.092	148	2.03	4.15		13	26.6%	-0.42	0.0394	-0.088
3.65	6.00		6	29.6%	0.56	0.0421	-0.094	149	2.22	4.85		12	26.5%	-0.46	0.0400	-0.089
3.25	5.55		122	30.2%	0.52	0.0422	-0.094	150	3.00	5.35		41	27.4%	-0.50	0.0403	-0.090
2.27	4.30		50	30.1%	0.42	0.0404	-0.091	152.5	4.80	6.95			29.2%	-0.60	0.0390	-0.087
1.60	2.23	6	55	26.2%	0.32	0.0365	-0.083	155	6.10	8.85		2	28.9%	-0.69	0.0356	-0.079
0.9400	1.72		178	26.9%	0.24	0.0314	-0.072	157.5	8.10	10.60		4	29.1%	-0.77	0.0309	-0.068
0.5300	1.71	2	391	29.5%	0.18	0.0257	-0.060	160	10.25	12.80		1	30.8%	-0.83	0.0254	-0.055
0.1600	1.30		22	29.2%	0.13	0.0204	-0.049	162.5	12.70	15.00			33.2%	-0.88	0.0201	-0.043
0.3000	1.19		335	33.1%	0.10	0.0159	-0.040	165	14.85	17.45			34.7%	-0.91	0.0156	-0.033
0.0200	0.9100		55	32.4%	0.07	0.0124	-0.034	167.5	17.25	19.95			37.6%	-0.93	0.0121	-0.025
0.1000	0.7600		88	34.9%	0.06	0.0097	-0.028	170	19.90	22.35		21	41.4%	-0.95	0.0094	-0.018
0	0.9600		10	38.9%	0.04	0.0077	-0.024	172.5	22.10	25.00			44.8%	-0.96	0.0073	-0.012
0.0200	0.2300	2	6	32.4%	0.03	0.0061	-0.020	175	24.60	27.50			47.7%	-0.97	0.0058	-0.008
0	0.7800		2	42.8%	0.03	0.0049	-0.017	177.5	27.05	30.05			50.0%	-0.98	0.0046	-0.003
0	0.9600		3	47.5%	0.02	0.0039	-0.015	180	29.75	32.45			53.9%	-0.98	0.0036	0.000
0	0.7500			47.8%	0.02	0.0032	-0.013	182.5	32.05	34.65			52.1%	-0.98	0.0029	0.000
0	2.16		3	63.7%	0.01	0.0026	-0.011	185	34.70	37.45			59.3%	-0.99	0.0023	0.000
0	2.14		2	69.2%	0.01	0.0018	-0.008	190	39.50	41.90			56.5%	-0.99	0.0016	0.000
0	2.14		2	74.7%	0.01	0.0013	-0.006	195	44.70	47.40			69.8%	-0.99	0.0011	0.000
0	1.61		1	75.0%	0.01	0.0009	-0.005	200	49.50	51.80			64.8%	-1.00	0.0008	0.000
0	2.13			84.8%	0.00	0.0007	-0.004	205	54.50	57.45			78.2%	-1.00	0.0006	0.000
0	2.13			89.5%	0.00	0.0005	-0.003	210	59.50	61.85			74.7%	-1.00	0.0004	0.000
0	2.13			94.2%	0.00	0.0004	-0.003	215	64.45	66.80			77.2%	-1.00	0.0003	0.000
0	2.13			98.6%	0.00	0.0003	-0.003	220	69.45	72.45			91.3%	-1.00	0.0002	0.000
0	2.13			102.9%	0.00	0.0003	-0.002	225	74.45	77.35			94.2%	-1.00	0.0002	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 — Sep 25, 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 — Sep 25, 2026

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