MRK option chain Merck & Co., Inc.

Expiration Cboe delayed options data · as of 21:59 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% (132.05–156.25) · ATM IV 35.5% · P/C open interest 0.91

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
68.05	70.60			114.2%	1.00	0.0001	0.000	75	0	0.1000			87.9%	-0.00	0.0001	-0.001
63.15	65.65		1	106.7%	1.00	0.0001	0.000	80	0	0.5700			100.8%	-0.00	0.0001	-0.002
58.15	60.65			96.0%	1.00	0.0002	0.000	85	0	0.7200		3	95.2%	-0.00	0.0002	-0.003
53.40	56.05			97.2%	1.00	0.0004	0.000	90	0	0.5800			83.0%	-0.00	0.0004	-0.004
48.30	51.10			86.4%	0.99	0.0006	0.000	95	0	0.1400		2	60.7%	-0.01	0.0006	-0.005
43.35	46.10		21	77.5%	0.99	0.0010	-0.002	100	0	0.1500	7	147	54.4%	-0.01	0.0010	-0.007
38.35	40.35		1	57.2%	0.99	0.0015	-0.005	105	0	0.1900		41	49.5%	-0.01	0.0015	-0.010
33.50	36.20		32	62.3%	0.98	0.0024	-0.009	110	0	0.2600		1,819	45.1%	-0.02	0.0024	-0.014
28.90	31.35		19	58.3%	0.97	0.0039	-0.016	115	0.0800	0.2000		129	39.1%	-0.03	0.0039	-0.019
23.90	26.00		38	46.8%	0.95	0.0064	-0.025	120	0.3400	0.5000	4	632	40.4%	-0.05	0.0065	-0.029
19.60	21.55	2	1,050	46.1%	0.91	0.0103	-0.040	125	0.6400	0.8500	54	2,141	38.2%	-0.10	0.0104	-0.043
15.25	17.35	1	228	43.5%	0.84	0.0153	-0.058	130	1.33	1.46	439	2,752	37.2%	-0.16	0.0154	-0.060
11.90	14.40			41.9%	0.77	0.0196	-0.072	134	1.98	2.34			36.1%	-0.23	0.0198	-0.074
11.15	12.55	12	159	37.5%	0.75	0.0206	-0.075	135	2.39	2.55	85	9,934	36.3%	-0.25	0.0208	-0.077
10.65	13.00			42.1%	0.73	0.0216	-0.078	136	2.17	2.90	1		34.7%	-0.28	0.0219	-0.080
9.90	10.35			35.0%	0.70	0.0225	-0.081	137	2.84	3.15	15		35.6%	-0.30	0.0228	-0.083
9.35	11.25			40.5%	0.68	0.0234	-0.084	138	3.10	3.50			35.4%	-0.32	0.0237	-0.086
8.70	9.90			38.0%	0.66	0.0242	-0.086	139	3.30	3.90	3		34.9%	-0.35	0.0245	-0.088
8.10	8.70	12	609	36.1%	0.63	0.0249	-0.088	140	4.00	4.30	28	4,235	35.9%	-0.37	0.0252	-0.090
7.45	8.25			36.2%	0.61	0.0255	-0.090	141	4.20	4.65			35.0%	-0.40	0.0258	-0.091
6.90	7.70	6		36.2%	0.58	0.0260	-0.091	142	4.45	5.20			34.7%	-0.42	0.0264	-0.093
6.35	7.20			36.2%	0.55	0.0263	-0.092	143	4.80	5.70	25		34.4%	-0.45	0.0268	-0.093
5.85	6.65	1		36.0%	0.53	0.0266	-0.092	144	5.55	6.15			35.0%	-0.48	0.0270	-0.094
5.35	5.95	1,299	5,258	35.3%	0.50	0.0267	-0.092	145	6.10	6.60	63	4,168	34.8%	-0.50	0.0272	-0.094
4.95	5.55	3		35.5%	0.48	0.0267	-0.092	146	5.75	7.20			32.2%	-0.53	0.0272	-0.094
4.50	5.10	23		35.3%	0.45	0.0266	-0.091	147	7.15	7.75	1		34.5%	-0.56	0.0272	-0.093
4.10	4.65	52		35.2%	0.42	0.0264	-0.090	148	7.50	8.55			34.3%	-0.58	0.0270	-0.092
3.75	4.25	256		35.1%	0.40	0.0260	-0.089	149	7.40	9.00			31.5%	-0.61	0.0266	-0.090
3.40	3.95	136	5,970	35.3%	0.37	0.0256	-0.087	150	9.05	9.65	34	1,378	34.5%	-0.64	0.0262	-0.089
2.59	3.10	98		34.8%	0.31	0.0240	-0.081	152.5	10.70	11.85			35.6%	-0.70	0.0248	-0.083
2.08	2.30	53	3,631	34.6%	0.26	0.0219	-0.074	155	12.35	13.60		339	34.3%	-0.75	0.0228	-0.076
1.51	1.91	297		34.9%	0.21	0.0196	-0.066	157.5	13.65	15.40			30.0%	-0.80	0.0206	-0.068
1.20	1.47	188	5,337	35.2%	0.17	0.0172	-0.058	160	16.10	17.55		142	31.1%	-0.84	0.0182	-0.060
0.8700	1.50			37.0%	0.14	0.0147	-0.050	162.5	18.00	19.95			28.6%	-0.88	0.0159	-0.052
0.6000	0.7500	127	3,960	34.3%	0.11	0.0125	-0.043	165	20.30	22.35		31		-0.91	0.0137	-0.045
0.4800	0.9300			37.4%	0.09	0.0104	-0.036	167.5	22.65	24.90				-0.94	0.0117	-0.038
0.3500	0.4800	216	2,124	35.5%	0.07	0.0086	-0.031	170	25.00	26.85		47		-0.96	0.0100	-0.033
0.1700	0.3100	48	1,084	36.2%	0.04	0.0058	-0.022	175	29.90	31.75				-0.99	0.0062	-0.022
0.1000	0.3100	3	738	39.3%	0.03	0.0040	-0.015	180	34.30	37.75				-1.00	0.0018	-0.017
0.0200	0.3100		100	41.8%	0.02	0.0028	-0.011	185	39.30	42.50				-1.00	0.0000	-0.017
0.0200	0.1300	3	230	40.7%	0.01	0.0020	-0.009	190	44.30	47.50				-1.00	0.0000	-0.017
0	0.1900		10	45.3%	0.01	0.0014	-0.007	195	49.30	52.50				-1.00	0.0000	-0.017
0.0100	0.0500	1	12	42.4%	0.01	0.0011	-0.005	200	54.30	57.35				-1.00	0.0000	-0.017
0	0.3400		2	59.1%	0.00	0.0006	-0.004	210	64.30	67.50				-1.00	0.0000	-0.017

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 20, 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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MRK option chain Merck & Co., Inc.

Volatility smile — Nov 20, 2026

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