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 ±7.6% (134.10–156.15) · ATM IV 42.5% · P/C open interest 0.47

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
64.65	67.40			157.2%	1.00	0.0002	0.000	80	0	2.13			172.5%	-0.00	0.0002	-0.006
59.55	62.40			140.6%	1.00	0.0003	0.000	85	0	2.13			157.6%	-0.00	0.0003	-0.008
54.65	57.45			130.2%	1.00	0.0005	-0.002	90	0	2.13			143.4%	-0.00	0.0005	-0.010
49.70	52.45			116.3%	0.99	0.0007	-0.005	95	0	2.14			130.1%	-0.01	0.0007	-0.012
44.70	47.50			106.5%	0.99	0.0010	-0.008	100	0	0.9500			98.4%	-0.01	0.0010	-0.015
39.75	42.45			94.6%	0.99	0.0014	-0.012	105	0	1.54			96.9%	-0.01	0.0014	-0.018
34.70	37.50			83.1%	0.98	0.0021	-0.016	110	0	1.59		14	86.3%	-0.02	0.0021	-0.021
29.75	32.55			73.2%	0.98	0.0032	-0.022	115	0	1.75		96	77.0%	-0.02	0.0032	-0.026
25.15	27.65		1	67.5%	0.96	0.0052	-0.033	120	0.1300	0.5000	4	90	52.2%	-0.04	0.0052	-0.037
20.10	22.90			58.0%	0.93	0.0086	-0.052	125	0.2500	0.8500	4	19	48.8%	-0.07	0.0087	-0.055
16.90	19.25			56.9%	0.89	0.0126	-0.073	129	0.6000	1.12			46.3%	-0.11	0.0127	-0.076
15.70	18.35			53.8%	0.88	0.0138	-0.079	130	0.7700	1.08	4	123	45.2%	-0.12	0.0139	-0.082
15.05	17.55			54.7%	0.86	0.0150	-0.085	131	0.7500	1.22	3	3	43.9%	-0.14	0.0151	-0.088
14.25	16.25			51.6%	0.85	0.0163	-0.091	132	0.8000	1.41		47	43.3%	-0.15	0.0164	-0.094
13.40	15.40			50.7%	0.83	0.0176	-0.098	133	1.19	1.45		12	43.7%	-0.17	0.0177	-0.100
12.65	14.85		1	51.9%	0.81	0.0188	-0.104	134	1.14	1.64		248	42.1%	-0.19	0.0190	-0.106
11.80	14.25		5	51.9%	0.79	0.0201	-0.110	135	1.43	1.90		64	42.5%	-0.21	0.0203	-0.112
11.10	13.40		2	51.3%	0.77	0.0214	-0.116	136	1.73	2.13	25	34	42.7%	-0.23	0.0216	-0.118
10.35	12.65			50.7%	0.75	0.0226	-0.122	137	1.75	2.37		47	41.6%	-0.25	0.0228	-0.124
9.45	10.40		2	42.8%	0.72	0.0238	-0.127	138	2.30	2.63		30	42.7%	-0.28	0.0240	-0.129
8.95	10.40		1	46.3%	0.70	0.0250	-0.132	139	2.36	2.95		24	41.5%	-0.30	0.0252	-0.134
8.30	10.65		4	50.0%	0.67	0.0260	-0.136	140	2.93	3.30		34	42.5%	-0.33	0.0262	-0.138
7.70	8.50		3	43.6%	0.65	0.0269	-0.140	141	2.83	3.75		18	40.9%	-0.36	0.0271	-0.142
7.05	8.00		23	43.7%	0.62	0.0277	-0.143	142	3.65	4.05		11	42.2%	-0.38	0.0279	-0.145
6.35	7.30		32	42.7%	0.59	0.0283	-0.146	143	3.55	4.65		13	40.7%	-0.41	0.0286	-0.148
5.90	6.85		28	43.4%	0.56	0.0288	-0.148	144	3.80	5.05		14	39.7%	-0.44	0.0291	-0.149
5.45	6.40	1	241	43.8%	0.53	0.0291	-0.149	145	4.70	5.50	2	45	41.1%	-0.47	0.0295	-0.150
5.00	5.80	2	38	43.5%	0.50	0.0293	-0.149	146	4.75	5.95		1	39.1%	-0.50	0.0296	-0.150
4.50	5.10	3	437	42.4%	0.48	0.0293	-0.148	147	5.45	6.70			40.4%	-0.53	0.0297	-0.150
4.10	4.85		22	43.1%	0.45	0.0292	-0.147	148	6.30	7.15		1	41.0%	-0.56	0.0295	-0.149
3.55	4.45		5	42.5%	0.42	0.0288	-0.145	149	6.35	7.80		52	38.9%	-0.59	0.0292	-0.147
3.30	4.00	4	86	42.6%	0.39	0.0284	-0.142	150	7.80	8.35		31	41.8%	-0.61	0.0288	-0.144
2.38	3.20		93	42.2%	0.32	0.0266	-0.133	152.5	9.25	10.15			41.1%	-0.68	0.0270	-0.134
1.89	2.17	2	771	41.3%	0.26	0.0242	-0.121	155	10.55	12.00			38.3%	-0.74	0.0247	-0.122
1.34	1.96		122	42.8%	0.21	0.0214	-0.107	157.5	11.80	14.15			34.0%	-0.80	0.0219	-0.108
1.02	1.28	7	269	41.8%	0.17	0.0184	-0.093	160	13.75	16.20		5	29.0%	-0.84	0.0190	-0.094
0.6800	2.28		16	50.2%	0.13	0.0156	-0.080	162.5	15.90	18.45				-0.88	0.0162	-0.081
0.4100	1.26		15	45.8%	0.11	0.0130	-0.069	165	18.20	20.75				-0.91	0.0137	-0.070
0.2700	1.45		1	50.0%	0.09	0.0109	-0.061	167.5	20.65	23.20				-0.93	0.0115	-0.061
0.1700	1.23		37	50.9%	0.07	0.0092	-0.055	170	23.05	25.55				-0.94	0.0098	-0.055
0.1000	1.19		24	53.3%	0.06	0.0079	-0.051	172.5	25.45	28.00				-0.95	0.0085	-0.051
0.0500	1.57		10	59.8%	0.06	0.0069	-0.048	175	27.85	30.45				-0.96	0.0075	-0.048
0.0100	1.15		4	61.5%	0.05	0.0055	-0.045	180	32.80	36.20				-0.97	0.0060	-0.044
0.0100	1.15			67.4%	0.04	0.0045	-0.044	185	37.80	41.60				-0.97	0.0050	-0.042
0.0100	1.95			81.9%	0.04	0.0038	-0.042	190	42.80	46.60				-0.98	0.0042	-0.040
0	1.15			78.4%	0.03	0.0032	-0.041	195	47.85	51.75				-0.98	0.0036	-0.037
0	1.35			86.3%	0.03	0.0028	-0.039	200	52.85	56.75				-0.98	0.0031	-0.035
0	1.40			92.1%	0.03	0.0024	-0.037	205	57.85	61.55				-0.99	0.0027	-0.032
0	1.15			93.5%	0.02	0.0021	-0.036	210	62.85	66.75				-0.99	0.0023	-0.031
0	1.35		1	101.1%	0.02	0.0019	-0.034	215	67.85	71.75				-0.99	0.0020	-0.030

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 — Nov 06, 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 — Nov 06, 2026

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