MRK option chain Merck & Co., Inc.

Expiration Cboe delayed options data · as of 00:36 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 ±8.4% (137.81–163.21) · ATM IV 28.9% · P/C open interest 0.00

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	72.50			82.3%	0.99	0.0008	-0.018	80	0	2.13			109.6%	-0.02	0.0009	-0.020
63.45	67.50			76.7%	0.99	0.0010	-0.020	85	0	2.13			100.5%	-0.02	0.0011	-0.021
58.45	62.50			69.1%	0.98	0.0013	-0.022	90	0	2.13			91.9%	-0.02	0.0013	-0.023
53.45	57.50			62.0%	0.98	0.0017	-0.024	95	0	2.13			83.8%	-0.03	0.0016	-0.024
48.35	52.50			49.6%	0.97	0.0021	-0.026	100	0	2.13			76.0%	-0.03	0.0020	-0.025
43.45	47.50			48.8%	0.97	0.0027	-0.028	105	0	2.13			68.5%	-0.04	0.0026	-0.026
38.95	42.45			51.2%	0.96	0.0034	-0.029	110	0	2.13			61.3%	-0.05	0.0033	-0.028
34.00	37.45			45.3%	0.95	0.0044	-0.031	115	0	2.14			54.4%	-0.05	0.0042	-0.029
29.25	32.50			41.7%	0.94	0.0058	-0.033	120	0	2.18			47.8%	-0.07	0.0055	-0.032
24.70	27.40			37.7%	0.92	0.0077	-0.035	125	0	2.30			41.8%	-0.09	0.0074	-0.034
20.05	22.65			34.4%	0.89	0.0104	-0.038	130	0	2.58			36.4%	-0.12	0.0102	-0.038
15.75	17.65			30.4%	0.84	0.0142	-0.044	135	0.7900	3.15			34.5%	-0.16	0.0143	-0.044
14.70	17.50			31.9%	0.83	0.0152	-0.045	136	0.5800	2.28			29.2%	-0.18	0.0152	-0.045
13.60	16.70			30.7%	0.81	0.0161	-0.046	137	0	3.55			30.2%	-0.19	0.0162	-0.047
12.35	15.95			29.2%	0.80	0.0171	-0.048	138	0.0700	2.75			26.2%	-0.21	0.0173	-0.049
11.40	15.20			28.6%	0.78	0.0181	-0.050	139	0.2000	3.05			26.3%	-0.22	0.0183	-0.050
11.55	14.50		1	31.4%	0.76	0.0190	-0.051	140	1.94	3.10			30.2%	-0.24	0.0194	-0.052
10.85	13.25			29.8%	0.74	0.0200	-0.053	141	2.18	2.80	1		28.4%	-0.26	0.0204	-0.054
9.80	13.10			30.3%	0.72	0.0210	-0.054	142	2.13	3.50			28.5%	-0.28	0.0214	-0.056
9.35	12.45			30.9%	0.70	0.0219	-0.056	143	2.35	3.65			27.8%	-0.30	0.0223	-0.057
9.05	10.85			29.3%	0.68	0.0228	-0.057	144	2.92	5.00			30.9%	-0.33	0.0232	-0.059
8.50	9.75	1		28.3%	0.66	0.0235	-0.059	145	3.05	4.40	1		27.9%	-0.35	0.0241	-0.060
8.00	9.05			28.3%	0.63	0.0242	-0.060	146	3.65	4.85			28.5%	-0.37	0.0248	-0.061
7.60	8.70	3		29.2%	0.61	0.0248	-0.061	147	4.00	5.05			27.8%	-0.40	0.0254	-0.062
6.95	7.85	5		28.3%	0.58	0.0253	-0.061	148	4.45	5.60			28.0%	-0.43	0.0259	-0.063
6.45	7.60			29.0%	0.56	0.0256	-0.062	149	4.90	5.95			27.6%	-0.45	0.0263	-0.064
5.95	7.25			29.3%	0.53	0.0258	-0.062	150	5.65	6.55	1		28.4%	-0.48	0.0266	-0.064
4.85	6.05	10	2	29.3%	0.47	0.0258	-0.062	152.5	7.05	7.85			28.3%	-0.54	0.0267	-0.065
3.90	4.75	46		28.6%	0.41	0.0250	-0.061	155	8.25	9.30			27.3%	-0.61	0.0260	-0.064
2.95	3.90		2	28.3%	0.35	0.0236	-0.059	157.5	10.15	11.20			28.4%	-0.67	0.0246	-0.062
2.18	3.45			28.8%	0.30	0.0217	-0.057	160	11.40	13.65			28.5%	-0.72	0.0228	-0.060
1.36	4.00			31.4%	0.26	0.0197	-0.054	162.5	12.50	16.30			28.1%	-0.76	0.0207	-0.057
0.7600	2.49			28.1%	0.23	0.0176	-0.052	165	14.65	17.95			26.8%	-0.80	0.0186	-0.055
0.7200	3.50	1		34.0%	0.20	0.0158	-0.050	167.5	17.00	20.55			29.3%	-0.82	0.0166	-0.052
0.2400	3.30			34.4%	0.17	0.0141	-0.048	170	19.30	23.00			30.7%	-0.85	0.0147	-0.050
0	3.10			35.4%	0.16	0.0126	-0.046	172.5	21.60	25.05			29.6%	-0.87	0.0131	-0.048
0	2.94			37.2%	0.14	0.0113	-0.044	175	23.95	27.55			30.8%	-0.88	0.0117	-0.045
0	2.83			39.0%	0.12	0.0101	-0.042	177.5	26.45	30.15			33.6%	-0.90	0.0105	-0.043
0	2.70			40.7%	0.11	0.0092	-0.040	180	28.80	32.50			33.3%	-0.91	0.0094	-0.041
0	2.22			40.6%	0.10	0.0083	-0.038	182.5	31.20	34.95			33.8%	-0.92	0.0084	-0.039
0	2.56			44.2%	0.09	0.0075	-0.037	185	33.45	37.45			32.4%	-0.93	0.0076	-0.037
0	2.44			47.6%	0.08	0.0062	-0.034	190	38.55	42.45			37.3%	-0.94	0.0061	-0.033
0	2.35			50.9%	0.06	0.0052	-0.030	195	43.50	47.35			38.0%	-0.95	0.0050	-0.029
0	2.29			54.1%	0.05	0.0044	-0.028	200	48.30	52.40			35.9%	-0.96	0.0041	-0.026
0	2.23			57.1%	0.05	0.0037	-0.025	205	53.45	57.25			39.1%	-0.97	0.0033	-0.023
0	2.19			60.1%	0.04	0.0032	-0.023	210	58.45	62.25			42.1%	-0.98	0.0028	-0.020
0	2.17			63.1%	0.03	0.0027	-0.021	215	63.45	67.25			45.0%	-0.98	0.0023	-0.017
0	2.15			66.0%	0.03	0.0023	-0.019	220	68.40	72.25			44.4%	-0.98	0.0019	-0.015
0	2.14			68.9%	0.03	0.0020	-0.017	225	73.40	77.25			47.6%	-0.99	0.0016	-0.013

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

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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 23, 2026

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