REGN option chain Regeneron Pharmaceuticals, Inc.

Expiration Cboe delayed options data · as of 21:37 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 ±11.9% (744.09–945.99) · ATM IV 32.3% · P/C open interest 1.07

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
415.30	424.30			62.3%	1.00	0.0000	0.000	430	0	6.80		3	83.2%	-0.00	0.0000	-0.008
405.40	414.40			60.4%	1.00	0.0000	0.000	440	0	6.90		9	80.9%	-0.00	0.0000	-0.009
395.50	404.50			58.6%	1.00	0.0000	0.000	450	0	6.90		18	78.5%	-0.00	0.0000	-0.011
385.60	394.60			56.9%	1.00	0.0000	0.000	460	0	6.90		12	76.1%	-0.00	0.0000	-0.012
375.70	384.70			55.1%	1.00	0.0001	0.000	470	0	6.90		2	73.8%	-0.00	0.0001	-0.014
365.80	374.80		8	53.4%	1.00	0.0001	0.000	480	0	6.90		6	71.5%	-0.00	0.0001	-0.016
356.00	364.90			52.4%	0.99	0.0001	0.000	490	0	6.90			69.3%	-0.01	0.0001	-0.018
346.10	355.10			51.3%	0.99	0.0001	0.000	500	0	6.90		7	67.1%	-0.01	0.0001	-0.021
326.30	335.30		3	48.0%	0.99	0.0001	0.000	520	0	6.90		28	62.8%	-0.01	0.0001	-0.027
306.60	315.60		1	45.7%	0.99	0.0002	0.000	540	0	7.00		43	58.9%	-0.01	0.0002	-0.034
287.00	296.00		4	44.0%	0.98	0.0002	0.000	560	0	7.10		86	55.1%	-0.02	0.0002	-0.043
267.40	276.40		2	42.0%	0.98	0.0003	0.000	580	0	7.20		46	51.3%	-0.02	0.0003	-0.053
248.00	257.00		5	40.8%	0.97	0.0004	0.000	600	0	7.90		148	48.5%	-0.03	0.0004	-0.066
243.20	252.00			40.2%	0.97	0.0004	0.000	605	0	8.00			47.6%	-0.03	0.0004	-0.070
238.40	247.30			40.2%	0.97	0.0004	0.000	610	0	8.00			46.7%	-0.03	0.0004	-0.074
233.60	242.50			40.0%	0.97	0.0005	0.000	615	0	8.10			45.9%	-0.04	0.0005	-0.077
228.80	237.80		14	39.8%	0.96	0.0005	0.000	620	0	8.20		32	45.1%	-0.04	0.0005	-0.082
224.00	233.00			39.5%	0.96	0.0005	0.000	625	0	8.30			44.3%	-0.04	0.0006	-0.086
219.20	228.00			38.8%	0.96	0.0006	-0.004	630	0	8.40			43.5%	-0.04	0.0006	-0.090
214.50	223.50			39.0%	0.95	0.0006	-0.010	635	0	8.50			42.7%	-0.05	0.0006	-0.095
209.80	218.80		9	38.9%	0.95	0.0006	-0.017	640	0	8.60		23	41.9%	-0.05	0.0007	-0.099
205.10	214.00			38.5%	0.95	0.0007	-0.024	645	0	8.80			41.1%	-0.05	0.0007	-0.104
200.40	209.00			37.9%	0.94	0.0007	-0.030	650	0	8.90		1	40.3%	-0.06	0.0008	-0.109
195.80	204.70			38.2%	0.94	0.0008	-0.037	655	0	9.00			39.5%	-0.06	0.0008	-0.114
191.10	200.00		10	37.9%	0.94	0.0008	-0.045	660	0	9.20		137	38.8%	-0.07	0.0008	-0.120
186.50	195.50		6	37.8%	0.93	0.0009	-0.052	665	0	9.40			38.1%	-0.07	0.0009	-0.125
181.90	190.90		5	37.6%	0.93	0.0009	-0.060	670	0	9.50		61	37.3%	-0.07	0.0009	-0.131
177.40	186.00			37.2%	0.92	0.0010	-0.067	675	0.1000	9.70		2	36.7%	-0.08	0.0010	-0.137
172.80	181.80		7	37.2%	0.92	0.0010	-0.075	680	0.5000	10.00		3	36.4%	-0.08	0.0010	-0.142
168.30	177.00		6	36.8%	0.91	0.0011	-0.083	685	1.00	10.00			35.9%	-0.09	0.0011	-0.149
164.20	172.60		44	37.0%	0.91	0.0012	-0.091	690	1.45	10.00		6	35.4%	-0.10	0.0012	-0.155
159.00	168.00		8	36.1%	0.90	0.0012	-0.099	695	2.00	11.00		8	35.7%	-0.10	0.0012	-0.161
154.60	164.00		18	36.3%	0.89	0.0013	-0.107	700	2.55	11.80		26	35.7%	-0.11	0.0013	-0.167
150.10	159.70		2	36.1%	0.89	0.0013	-0.116	705	3.10	12.40		7	35.6%	-0.12	0.0014	-0.174
145.80	155.00		4	35.7%	0.88	0.0014	-0.124	710	3.80	13.00		8	35.5%	-0.12	0.0014	-0.180
142.00	151.00		8	36.1%	0.87	0.0015	-0.132	715	4.50	13.70		10	35.4%	-0.13	0.0015	-0.187
137.50	146.80		12	35.8%	0.86	0.0015	-0.141	720	5.40	14.40		19	35.4%	-0.14	0.0016	-0.194
133.30	142.60		15	35.6%	0.86	0.0016	-0.149	725	6.20	15.00		8	35.1%	-0.15	0.0016	-0.200
129.20	138.50		5	35.6%	0.85	0.0017	-0.158	730	7.30	16.00		17	35.3%	-0.15	0.0017	-0.207
125.20	134.40		4	35.5%	0.84	0.0018	-0.166	735	7.80	16.80		7	34.9%	-0.16	0.0018	-0.214
121.10	130.00		14	35.1%	0.83	0.0018	-0.175	740	8.90	17.80		155	34.9%	-0.17	0.0019	-0.221
117.20	126.40		9	35.2%	0.82	0.0019	-0.183	745	9.90	18.60		14	34.8%	-0.18	0.0019	-0.227
113.30	122.40		30	35.1%	0.81	0.0020	-0.192	750	10.90	19.80		21	34.7%	-0.19	0.0020	-0.234
110.10	118.60		3	35.3%	0.80	0.0021	-0.200	755	12.10	20.80		6	34.6%	-0.20	0.0021	-0.240
105.70	114.70		21	34.9%	0.79	0.0021	-0.208	760	13.40	22.00		9	34.6%	-0.21	0.0022	-0.247
101.90	111.00		5	34.8%	0.78	0.0022	-0.216	765	14.60	23.00		6	34.4%	-0.23	0.0022	-0.253
98.70	107.00		8	34.8%	0.77	0.0023	-0.224	770	15.80	24.50		6	34.4%	-0.24	0.0023	-0.259
94.60	103.20		2	34.4%	0.75	0.0024	-0.231	775	20.60	22.80		4	34.4%	-0.25	0.0024	-0.265
91.00	100.00		12	34.4%	0.74	0.0024	-0.238	780	19.90	23.80		3	33.3%	-0.26	0.0025	-0.270
87.40	96.50		14	34.3%	0.73	0.0025	-0.245	785	20.10	28.40		2	34.0%	-0.27	0.0025	-0.276
84.10	93.00		10	34.2%	0.72	0.0026	-0.252	790	21.70	28.40		5	33.3%	-0.29	0.0026	-0.281
80.70	89.70		62	34.1%	0.70	0.0026	-0.259	795	23.30	31.70		5	33.8%	-0.30	0.0027	-0.286
77.40	86.00		51	33.9%	0.69	0.0027	-0.265	800	25.00	33.10		13	33.7%	-0.32	0.0028	-0.290
74.60	82.90		11	33.9%	0.68	0.0028	-0.271	805	26.80	34.80		2	33.6%	-0.33	0.0028	-0.294
70.80	79.90		96	33.7%	0.66	0.0028	-0.276	810	28.40	37.00		1	33.5%	-0.34	0.0029	-0.298
67.80	76.80		8	33.6%	0.65	0.0029	-0.281	815	30.20	38.70			33.3%	-0.36	0.0029	-0.301
64.70	73.70		7	33.4%	0.63	0.0029	-0.285	820	32.20	40.50			33.2%	-0.37	0.0030	-0.304
61.70	70.80		2	33.3%	0.62	0.0030	-0.289	825	34.20	42.40			33.0%	-0.39	0.0030	-0.307
58.80	67.70		4	33.1%	0.60	0.0030	-0.293	830	36.20	44.50			32.9%	-0.40	0.0031	-0.309
56.40	61.80		9	32.2%	0.59	0.0031	-0.296	835	38.60	45.90			32.6%	-0.42	0.0031	-0.311
53.70	59.00	1	17	32.0%	0.57	0.0031	-0.299	840	40.60	48.50			32.5%	-0.44	0.0032	-0.312
51.40	56.40		5	32.1%	0.56	0.0031	-0.301	845	43.40	50.70			32.5%	-0.45	0.0032	-0.313
48.60	53.90		14	31.9%	0.54	0.0031	-0.303	850	45.00	53.70		1	32.3%	-0.47	0.0032	-0.313
47.40	51.30		13	32.2%	0.53	0.0031	-0.304	855	47.60	55.50		5	32.0%	-0.48	0.0032	-0.313
45.00	51.30	2	17	32.9%	0.51	0.0032	-0.305	860	50.20	58.10		8	31.9%	-0.50	0.0033	-0.312
41.30	48.10			32.1%	0.49	0.0032	-0.305	865	52.80	60.70			31.8%	-0.52	0.0033	-0.311
39.00	47.00		5	32.4%	0.48	0.0032	-0.305	870	55.60	63.80			31.8%	-0.53	0.0033	-0.309
36.80	45.30			32.4%	0.46	0.0032	-0.304	875	58.80	66.50			31.8%	-0.55	0.0033	-0.307
35.40	40.20		111	31.6%	0.45	0.0032	-0.303	880	61.80	69.50			31.8%	-0.56	0.0033	-0.305
32.40	41.40			32.2%	0.43	0.0031	-0.301	885	64.40	73.00			31.7%	-0.58	0.0033	-0.302
30.90	39.50			32.3%	0.42	0.0031	-0.299	890	67.60	75.70			31.6%	-0.60	0.0033	-0.299
30.50	34.40		1	31.6%	0.40	0.0031	-0.297	895	71.10	78.20			31.4%	-0.61	0.0032	-0.295
29.00	32.70	6	85	31.7%	0.39	0.0031	-0.294	900	74.60	81.70			31.5%	-0.63	0.0032	-0.291
25.80	32.40		5	31.6%	0.37	0.0030	-0.291	905	77.50	84.70			31.1%	-0.64	0.0032	-0.287
24.60	31.00		1	31.7%	0.36	0.0030	-0.287	910	80.90	90.00			31.7%	-0.66	0.0032	-0.282
22.90	31.50			32.4%	0.35	0.0030	-0.284	915	84.40	93.00			31.5%	-0.67	0.0031	-0.277
21.50	30.00		5	32.3%	0.33	0.0029	-0.280	920	88.10	96.40			31.4%	-0.69	0.0031	-0.271
20.10	27.40			31.9%	0.32	0.0029	-0.275	925	91.70	100.40			31.5%	-0.70	0.0031	-0.266
18.90	27.00			32.2%	0.31	0.0028	-0.270	930	95.50	104.00			31.4%	-0.71	0.0030	-0.259
17.50	26.00			32.3%	0.29	0.0028	-0.265	935	99.30	108.00			31.5%	-0.73	0.0030	-0.253
16.50	23.20		13	31.7%	0.28	0.0027	-0.260	940	103.10	111.80			31.4%	-0.74	0.0029	-0.247
15.40	23.40		1	32.3%	0.27	0.0026	-0.255	945	107.10	115.20			31.2%	-0.75	0.0029	-0.240
14.30	21.90		1	32.1%	0.26	0.0026	-0.249	950	111.10	119.00			31.1%	-0.77	0.0028	-0.234
13.00	22.00		1	32.4%	0.25	0.0025	-0.244	955	115.10	124.00			31.5%	-0.78	0.0028	-0.227
12.10	21.00		11	32.5%	0.24	0.0025	-0.238	960	119.10	128.00			31.4%	-0.79	0.0027	-0.220
11.20	20.00			32.5%	0.22	0.0024	-0.233	965	123.20	131.20			30.9%	-0.80	0.0026	-0.213
10.00	19.00			32.3%	0.21	0.0023	-0.227	970	127.30	136.00			31.1%	-0.81	0.0026	-0.205
9.00	18.00			32.1%	0.20	0.0023	-0.221	975	131.60	140.20			31.1%	-0.82	0.0025	-0.199
8.30	17.00		43	32.1%	0.20	0.0022	-0.215	980	135.80	144.20			30.8%	-0.83	0.0025	-0.192
7.60	16.00			32.0%	0.19	0.0021	-0.209	985	140.20	148.20			30.6%	-0.84	0.0024	-0.184
10.80	15.50			34.0%	0.18	0.0021	-0.203	990	144.60	153.00			30.8%	-0.85	0.0023	-0.177
6.20	15.00			32.2%	0.17	0.0020	-0.197	995	149.30	158.00			31.2%	-0.86	0.0023	-0.170
5.60	14.00		69	32.0%	0.16	0.0019	-0.191	1,000	153.40	162.00			30.6%	-0.87	0.0022	-0.163
4.40	13.00			32.1%	0.15	0.0018	-0.180	1,010	162.80	171.70			31.2%	-0.89	0.0021	-0.149
3.30	12.00		3	32.2%	0.13	0.0017	-0.169	1,020	171.90	180.90			31.0%	-0.91	0.0020	-0.134
2.35	11.00			32.1%	0.12	0.0016	-0.158	1,030	181.30	190.00			30.6%	-0.92	0.0018	-0.117
2.30	9.90		1	32.5%	0.11	0.0015	-0.147	1,040	190.80	199.80			30.8%	-0.93	0.0017	-0.101
0.6500	10.00			32.5%	0.10	0.0014	-0.137	1,050	200.40	209.40			30.5%	-0.95	0.0016	-0.082
0.0500	9.70		1	32.8%	0.09	0.0012	-0.128	1,060	210.20	219.20				-0.96	0.0017	-0.062
0	9.40		1	33.6%	0.08	0.0012	-0.119	1,070	220.10	229.10				-0.97	0.0018	-0.040
0	9.10			34.4%	0.07	0.0011	-0.110	1,080	230.10	239.10				-0.98	0.0018	-0.019
0	8.90			35.2%	0.07	0.0010	-0.102	1,090	240.10	249.00				-0.99	0.0011	-0.121
0	8.70			36.0%	0.06	0.0009	-0.095	1,100	250.00	259.00				-0.99	0.0006	-0.199
0	8.50			36.7%	0.05	0.0008	-0.088	1,110	260.00	269.00				-1.00	0.0002	-0.247
0	8.30			37.5%	0.05	0.0008	-0.081	1,120	270.00	279.00				-1.00	0.0000	-0.281
0	8.20			38.3%	0.04	0.0007	-0.075	1,130	280.00	289.00				-1.00	0.0000	-0.304
0	8.10			39.1%	0.04	0.0006	-0.070	1,140	290.00	299.00				-1.00	0.0000	-0.319
0	8.00			39.9%	0.04	0.0006	-0.064	1,150	300.00	309.00				-1.00	0.0000	-0.325
0	7.90			40.7%	0.03	0.0005	-0.059	1,160	310.00	319.00				-1.00	0.0000	-0.329

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

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

callsputs

REGN option chain Regeneron Pharmaceuticals, Inc.

Volatility smile — Nov 20, 2026

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