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REGN

Regeneron Pharmaceuticals, Inc.Close $649.76EOD only

Max Pain

$710.00

Next expiry May 22, 2026

Expected Move

±$7.45

1.1% from close

Price Gap

+60.24

Distance to max pain

IV Rank

Low premium

P/C OI

1.15

Slightly put-heavy

Consensus

4/4

Partial coverage

Published snapshot: May 20, 2026 close

End-of-day snapshot

This page reflects REGN options positioning from the latest published market-close snapshot. Intraday price and contract changes are not displayed.

Published Snapshot

May 20, 2026 close

REGN Options Chain

Data as of market close May 20, 2026

Expiration

Compare calls and puts side by side with OI, volume, IV, and positioning context.

Control Row

Next expiry (DTE 2)

Blank greek cells usually mean usable implied volatility was unavailable for that contract in the market-close snapshot.

Open Interest by Strike

IV Skew

Volume by Strike

Calls

Strike	Last	Bid	Ask	Chg	Vol	OI	IV	Delta	Gamma	Theta	Vega	Rho
570.00	137.60	75.90	82.80	0.00	0	0	113.7%	0.945	0.0020	-1.578	0.053	0.029
680.00	2.25	23.00	1.00	0.00	2	2	100.6%	0.284	0.0070	-4.120	0.163	0.010
700.00	0.25	0.00	1.90	0.05	149	84	54.4%	0.034	0.0029	-0.496	0.036	0.001
705.00	14.20	0.00	4.60	0.00	3	8	72.6%	0.068	0.0038	-1.157	0.063	0.002
710.00	0.40	0.00	4.40	0.20	1	20	76.1%	0.062	0.0033	-1.117	0.058	0.002
712.50	2.00	0.00	4.60	0.00	3	68	79.2%	0.062	0.0032	-1.167	0.059	0.002
715.00	0.32	0.00	4.60	0.00	4	10	81.3%	0.060	0.0030	-1.169	0.057	0.002
717.50	7.67	0.00	4.50	0.00	1	6	83.0%	0.057	0.0029	-1.148	0.055	0.002
720.00	0.10	0.00	4.50	0.00	1	26	85.1%	0.055	0.0027	-1.150	0.054	0.002
722.50	19.00	0.00	4.50	0.00	0	4	87.2%	0.054	0.0026	-1.151	0.053	0.002
725.00	5.50	0.00	4.50	0.00	1	4	89.3%	0.052	0.0025	-1.153	0.052	0.002
727.50	11.10	0.00	4.50	0.00	0	1	91.3%	0.051	0.0024	-1.155	0.050	0.002
730.00	0.41	0.00	4.50	0.00	4	56	93.3%	0.050	0.0023	-1.156	0.049	0.002
732.50	10.00	0.00	4.50	0.00	2	47	95.3%	0.048	0.0022	-1.157	0.048	0.002
735.00	3.14	0.00	4.50	0.00	1	1	97.3%	0.047	0.0021	-1.159	0.047	0.002
740.00	0.15	0.10	0.60	-0.15	5	143	70.7%	0.007	0.0006	-0.167	0.009	0.000
742.50	9.50	0.00	4.40	0.00	2	43	102.7%	0.043	0.0019	-1.136	0.044	0.001
745.00	2.37	0.00	4.40	0.00	7	7	104.6%	0.042	0.0018	-1.136	0.043	0.001
747.50	2.30	0.00	4.40	0.00	82	41	106.5%	0.041	0.0017	-1.137	0.043	0.001
750.00	0.25	0.00	4.40	0.00	3	13	108.4%	0.040	0.0017	-1.138	0.042	0.001
755.00	1.46	0.00	4.40	0.00	32	24	112.2%	0.039	0.0016	-1.139	0.041	0.001
760.00	0.25	0.00	4.40	0.00	33	87	115.8%	0.037	0.0015	-1.139	0.039	0.001
762.50	5.30	0.00	4.40	0.00	0	19	117.7%	0.037	0.0014	-1.139	0.039	0.001
770.00	5.78	0.00	4.40	0.00	1	2	123.1%	0.035	0.0013	-1.139	0.037	0.001
780.00	0.05	0.00	4.30	0.00	1	4	129.5%	0.032	0.0011	-1.113	0.034	0.001
790.00	0.20	0.00	4.30	0.00	2	0	136.4%	0.030	0.0010	-1.112	0.033	0.001
800.00	2.38	0.00	4.30	0.00	12	12	143.0%	0.028	0.0009	-1.111	0.031	0.001
810.00	16.20	0.00	4.30	0.00	1	2	149.6%	0.027	0.0009	-1.109	0.030	0.001
820.00	4.80	0.00	4.30	0.00	3	4	156.0%	0.025	0.0008	-1.108	0.028	0.001
830.00	2.61	0.00	4.30	0.00	12	15	162.3%	0.024	0.0007	-1.106	0.027	0.001
840.00	2.27	0.00	4.30	0.00	4	5	168.4%	0.023	0.0007	-1.104	0.026	0.001
850.00	0.05	0.00	4.30	0.00	1	2	174.4%	0.022	0.0006	-1.102	0.025	0.001
900.00	6.88	0.00	0.00	0.00	14	0	50.0%	0.000	0.0000	0.000	0.000	0.000
940.00	1.10	0.00	0.05	0.00	5	35	131.3%	0.000	0.0000	-0.006	0.000	0.000
1000.00	0.20	0.00	4.30	0.00	1	8	253.1%	0.014	0.0003	-1.066	0.017	0.000

Puts

Strike	Last	Bid	Ask	Chg	Vol	OI	IV	Delta	Gamma	Theta	Vega	Rho
520.00	2.59	0.00	4.30	0.00	94	76	158.1%	-0.025	0.0008	-1.100	0.028	-0.001
590.00	0.15	0.00	3.20	-0.45	2	65	76.4%	-0.041	0.0024	-0.807	0.042	-0.001
600.00	0.15	0.05	1.75	-1.10	8	69	57.6%	-0.029	0.0024	-0.456	0.032	-0.001
630.00	2.80	0.05	5.70	-5.55	11	16	57.5%	-0.226	0.0109	-2.062	0.145	-0.008
640.00	4.70	2.25	5.80	-10.98	7	15	42.6%	-0.307	0.0172	-1.774	0.169	-0.011
650.00	8.75	3.70	11.20	5.95	1	7	47.1%	-0.495	0.0176	-2.222	0.192	-0.018
655.00	2.02	7.50	13.80	0.00	0	1	46.5%	-0.583	0.0174	-2.139	0.188	-0.021
660.00	3.40	12.00	16.80	0.00	7	142	46.1%	-0.668	0.0164	-1.961	0.175	-0.025
662.50	3.80	12.40	19.30	0.00	11	15	50.0%	-0.691	0.0146	-2.061	0.169	-0.026
665.00	4.65	15.50	21.20	0.00	13	14	50.8%	-0.723	0.0137	-1.989	0.161	-0.027
667.50	5.10	17.70	23.30	0.00	1	1	52.4%	-0.748	0.0127	-1.949	0.153	-0.028
670.00	32.85	19.80	25.60	-13.15	2	189	54.7%	-0.768	0.0116	-1.949	0.147	-0.029
675.00	5.00	24.30	30.20	0.00	0	1	59.0%	-0.801	0.0098	-1.917	0.134	-0.030
677.50	45.00	25.70	32.60	0.00	3	4	61.5%	-0.813	0.0091	-1.921	0.129	-0.031
680.00	51.75	29.20	35.00	0.00	1	32	64.0%	-0.824	0.0084	-1.920	0.124	-0.031
685.00	11.00	33.00	40.00	0.00	5	6	69.7%	-0.840	0.0073	-1.975	0.117	-0.032
690.00	56.80	37.90	44.90	0.00	1	59	74.7%	-0.854	0.0064	-1.985	0.110	-0.033
695.00	52.13	42.70	49.80	-11.32	2	7	51.1%	-0.960	0.0035	-0.445	0.041	-0.037
700.00	58.82	47.40	55.00	-19.18	1	17	54.5%	-0.966	0.0029	-0.419	0.037	-0.037
705.00	20.52	53.70	59.70	0.00	2	6	64.5%	-0.954	0.0031	-0.673	0.047	-0.037
710.00	81.75	58.20	64.60	0.00	1	7	65.0%	-0.965	0.0025	-0.521	0.037	-0.038
712.50	24.10	59.60	67.10	0.00	2	21	58.7%	-0.982	0.0016	-0.231	0.021	-0.038
715.00	70.54	62.50	69.60	45.59	11	20	63.9%	-0.977	0.0018	-0.337	0.026	-0.038
717.50	17.70	65.20	72.10	0.00	0	5	67.3%	-0.975	0.0018	-0.389	0.028	-0.038
720.00	71.69	68.00	75.00	43.09	10	18	74.1%	-0.967	0.0021	-0.571	0.035	-0.038
722.50	19.80	70.20	77.10	0.00	0	4	70.9%	-0.977	0.0016	-0.387	0.027	-0.039
725.00	98.34	72.90	79.50	0.00	3	10	73.6%	-0.976	0.0016	-0.413	0.027	-0.039
730.00	36.69	79.10	84.50	0.00	2	2	85.5%	-0.964	0.0019	-0.724	0.038	-0.039
735.00	29.97	82.60	89.50	0.00	0	2	78.1%	-0.982	0.0012	-0.329	0.021	-0.040
740.00	119.30	88.10	94.50	0.00	1	1	85.9%	-0.978	0.0013	-0.461	0.025	-0.040
747.50	37.05	95.30	102.00	0.00	0	2	88.5%	-0.982	0.0010	-0.378	0.021	-0.040
757.50	47.56	105.10	112.00	0.00	0	1	93.2%	-0.986	0.0008	-0.321	0.018	-0.041
760.00	60.95	107.90	114.40	0.00	0	1	96.8%	-0.984	0.0009	-0.373	0.019	-0.041
770.00	58.54	115.90	124.40	0.00	1	0	143.7%	-0.938	0.0018	-2.017	0.059	-0.040
800.00	93.70	148.40	154.40	0.00	0	1	126.9%	-0.985	0.0006	-0.492	0.018	-0.043
970.00	263.20	315.70	324.40	0.00	0	0	270.6%	-0.971	0.0005	-2.027	0.032	-0.052
1110.00	403.20	456.30	464.40	0.00	0	0	209.0%	-1.000	0.0000	0.098	0.001	-0.061
1130.00	423.10	475.70	484.40	0.00	0	0	346.0%	-0.979	0.0003	-1.978	0.024	-0.061

How to Read the Chain

Use this market-close chain snapshot to compare liquidity, pricing, IV, and per-contract greeks across the active expiration.

How to scan it

Start with strike, bid/ask spread, open interest, and volume. Then use IV and greeks to decide whether a contract fits your directional, income, or volatility idea.

What matters first

Clean fills matter before a contract looks mathematically attractive. A thin market can erase the edge you think you found.

What can mislead you

Low premium, high IV, or one convenient delta do not make a trade by themselves. Check how far the strike sits from spot, expected move, and the event calendar.

Greeks are close-of-day estimates, and blank greek cells usually mean usable implied volatility was unavailable for that contract.