Home Options REGNChain

REGN

Regeneron Pharmaceuticals, Inc.Close $810.24EOD only

Max Pain

$790.00

Next expiry Aug 21, 2026

Expected Move

±$15.85

2.0% from close

Price Gap

-20.24

Distance to max pain

IV Rank

Middle-high premium

P/C OI

0.97

Balanced positioning

Consensus

4/4

Partial coverage

Published snapshot: Aug 18, 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

Aug 18, 2026 close

REGN Options Chain

Data as of market close Aug 18, 2026

Expiration

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

Control Row

Next expiry (DTE 3)

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
440.00	339.38	366.00	375.60	0.00	0	0	252.6%	0.997	0.0000	-0.309	0.006	0.036
460.00	242.00	346.00	355.60	0.00	1	0	235.8%	0.997	0.0001	-0.312	0.007	0.038
470.00	137.33	179.60	188.40	0.00	2	0	0.0%	1.000	0.0000	-0.055	0.000	0.039
520.00	108.90	0.00	0.00	0.00	1	0	0.0%	1.000	0.0000	-0.061	0.000	0.043
530.00	119.24	276.00	285.90	0.00	1	0	188.0%	0.995	0.0001	-0.393	0.011	0.043
565.00	243.00	241.00	250.70	0.00	390	0	159.2%	0.995	0.0001	-0.350	0.011	0.046
580.00	227.70	226.00	235.70	0.00	10	0	148.9%	0.995	0.0001	-0.352	0.011	0.047
595.00	115.41	211.20	221.00	0.00	4	0	146.2%	0.992	0.0002	-0.471	0.017	0.048
600.00	218.00	206.10	215.20	9.30	6	68	128.2%	0.996	0.0001	-0.260	0.009	0.049
605.00	203.60	201.10	211.00	0.00	1,170	0	138.0%	0.992	0.0002	-0.449	0.016	0.049
610.00	198.50	196.10	206.00	0.00	80	0	134.7%	0.992	0.0002	-0.450	0.017	0.050
615.00	145.64	191.10	201.00	0.00	1	0	131.3%	0.991	0.0002	-0.450	0.017	0.050
620.00	187.30	186.20	196.00	0.00	55	0	129.2%	0.991	0.0003	-0.474	0.019	0.050
625.00	113.00	181.10	191.00	0.00	4	0	124.6%	0.991	0.0003	-0.451	0.018	0.051
630.00	178.10	176.10	186.00	0.00	5	0	121.3%	0.990	0.0003	-0.452	0.019	0.051
635.00	172.90	172.80	179.90	0.00	5	0	124.4%	0.987	0.0004	-0.589	0.025	0.051
640.00	167.80	167.80	174.90	0.00	20	0	121.0%	0.986	0.0004	-0.590	0.026	0.052
645.00	162.30	162.70	169.90	0.00	10	0	116.7%	0.987	0.0004	-0.567	0.025	0.052
650.00	157.90	158.00	165.50	0.00	270	30	120.8%	0.981	0.0005	-0.767	0.034	0.052
655.00	152.30	152.80	159.90	0.00	6	0	110.8%	0.985	0.0005	-0.589	0.028	0.053
657.50	132.00	150.60	157.40	0.00	0	0	111.7%	0.983	0.0005	-0.656	0.031	0.053
660.00	147.80	147.80	154.90	0.00	15	0	107.5%	0.984	0.0005	-0.590	0.029	0.053
665.00	142.80	143.00	149.90	0.00	25	0	105.8%	0.983	0.0006	-0.633	0.032	0.053
670.00	148.35	137.20	144.90	10.55	1	4	95.5%	0.988	0.0005	-0.454	0.024	0.054
672.50	87.65	136.00	142.40	0.00	0	0	104.4%	0.978	0.0007	-0.742	0.038	0.054
675.00	132.80	132.20	139.90	0.00	70	0	92.3%	0.987	0.0005	-0.454	0.024	0.055
680.00	128.30	127.90	135.50	0.00	70	0	99.3%	0.977	0.0007	-0.740	0.040	0.054
685.00	121.50	122.90	130.00	0.00	5	0	92.5%	0.980	0.0007	-0.632	0.036	0.055
690.00	118.00	117.80	125.50	0.00	990	0	91.8%	0.976	0.0008	-0.717	0.042	0.055
695.00	113.50	112.80	120.00	0.00	25	0	85.1%	0.979	0.0008	-0.608	0.037	0.056
700.00	107.90	107.10	115.50	0.00	146	3	80.4%	0.980	0.0008	-0.564	0.036	0.056
705.00	102.70	102.90	110.50	0.00	55	0	82.3%	0.972	0.0011	-0.733	0.048	0.056
710.00	101.56	97.40	105.10	29.09	1	2	73.3%	0.979	0.0010	-0.541	0.038	0.057
715.00	47.90	93.20	100.00	0.00	5	0	74.4%	0.971	0.0012	-0.687	0.049	0.057
720.00	53.40	88.40	95.60	0.00	1	0	75.2%	0.962	0.0015	-0.845	0.061	0.057
725.00	88.85	83.20	90.10	0.00	1	0	68.2%	0.967	0.0015	-0.703	0.055	0.057
730.00	79.74	77.80	85.10	0.00	6	0	62.8%	0.969	0.0015	-0.619	0.051	0.058
735.00	74.11	73.00	80.70	0.00	11	0	63.4%	0.958	0.0019	-0.774	0.066	0.058
740.00	49.70	68.30	75.10	0.00	1	6	58.6%	0.959	0.0020	-0.712	0.064	0.058
745.00	56.30	63.20	70.10	0.00	1	0	54.7%	0.958	0.0022	-0.688	0.066	0.058
750.00	71.00	58.50	65.80	10.00	10	41	55.3%	0.942	0.0029	-0.867	0.085	0.058
755.00	64.19	53.60	59.40	12.69	1	2	65.2%	0.891	0.0039	-1.572	0.137	0.055
760.00	46.45	48.00	55.20	0.00	10	6	64.9%	0.869	0.0045	-1.766	0.156	0.053
765.00	53.50	43.00	50.30	7.69	2	9	61.0%	0.858	0.0050	-1.754	0.165	0.053
770.00	41.31	38.50	45.40	0.00	13	12	57.1%	0.846	0.0057	-1.736	0.175	0.053
775.00	39.90	33.80	40.50	7.52	1	11	53.0%	0.831	0.0065	-1.710	0.185	0.052
780.00	38.79	29.10	35.60	9.12	1	18	48.7%	0.814	0.0075	-1.674	0.197	0.051
785.00	15.73	24.50	30.90	0.00	1	9	45.1%	0.789	0.0087	-1.668	0.212	0.050
790.00	21.25	19.90	27.20	0.00	9	81	44.7%	0.743	0.0098	-1.834	0.237	0.047
795.00	10.92	16.00	22.40	0.00	4	8	40.1%	0.709	0.0117	-1.746	0.252	0.045
800.00	21.52	14.10	19.30	7.02	31	438	40.4%	0.646	0.0125	-1.896	0.273	0.042
805.00	18.35	8.00	15.20	6.25	11	35	36.8%	0.588	0.0144	-1.807	0.286	0.038
810.00	8.70	7.00	10.50	0.20	3	20	30.7%	0.515	0.0177	-1.545	0.293	0.034
815.00	10.25	3.00	9.20	3.45	11	36	33.7%	0.434	0.0159	-1.662	0.289	0.028
820.00	8.50	2.00	6.30	3.74	4	139	30.7%	0.343	0.0163	-1.416	0.270	0.022
825.00	5.42	0.60	9.00	2.02	14	20	44.7%	0.338	0.0111	-2.032	0.269	0.022
830.00	4.30	0.15	7.90	1.00	2	32	46.3%	0.293	0.0101	-1.978	0.253	0.019
835.00	2.05	0.00	2.60	0.12	3	13	31.2%	0.150	0.0102	-0.906	0.171	0.010
840.00	1.30	0.45	7.70	0.00	4	15	55.1%	0.245	0.0078	-2.144	0.231	0.016
850.00	1.18	0.05	2.20	0.56	2	20	40.1%	0.098	0.0059	-0.861	0.127	0.006
860.00	2.00	0.00	1.20	0.00	1	31	39.9%	0.052	0.0037	-0.528	0.079	0.003
875.00	1.30	0.00	6.90	0.00	0	11	63.6%	0.097	0.0037	-1.347	0.126	0.006
880.00	0.50	0.00	6.90	0.00	1	56	66.8%	0.092	0.0034	-1.363	0.122	0.006
885.00	0.90	-	6.80	0.00	0	30	87.0%	0.141	0.0035	-2.395	0.164	0.009
900.00	0.75	0.00	6.80	0.00	34	23	78.9%	0.077	0.0025	-1.395	0.106	0.005
920.00	0.40	0.00	6.80	0.00	1	30	90.4%	0.066	0.0019	-1.431	0.095	0.004
940.00	1.98	0.00	6.80	0.00	1	8	101.4%	0.059	0.0016	-1.459	0.086	0.004
960.00	0.05	0.00	6.80	0.00	3	58	111.9%	0.053	0.0013	-1.481	0.079	0.003
980.00	7.00	0.00	6.80	0.00	2	8	121.9%	0.048	0.0011	-1.499	0.074	0.003
1000.00	2.17	0.00	2.25	0.00	1	91	106.2%	0.016	0.0005	-0.533	0.030	0.001
1010.00	4.70	0.00	4.80	0.00	0	5	126.6%	0.032	0.0008	-1.102	0.052	0.002
1020.00	0.25	0.00	6.80	0.00	1	36	140.8%	0.041	0.0009	-1.526	0.065	0.003
1040.00	3.10	0.00	6.80	0.00	6	1	149.8%	0.039	0.0008	-1.536	0.061	0.002
1060.00	2.25	0.00	4.80	0.00	2	3	147.9%	0.027	0.0006	-1.115	0.045	0.002
1080.00	6.80	0.05	8.30	0.00	58	29	174.1%	0.041	0.0007	-1.878	0.065	0.003
1120.00	2.80	0.00	4.80	0.00	1	3	171.3%	0.023	0.0004	-1.124	0.039	0.001
1160.00	5.60	1.00	9.90	0.00	0	1	217.9%	0.043	0.0006	-2.446	0.067	0.003
1180.00	3.60	0.00	0.00	0.00	1	0	50.0%	0.000	0.0000	0.000	0.000	0.000
1200.00	0.10	0.00	6.80	0.00	1	13	212.5%	0.026	0.0004	-1.583	0.045	0.002

Puts

Strike	Last	Bid	Ask	Chg	Vol	OI	IV	Delta	Gamma	Theta	Vega	Rho
435.00	0.94	0.00	6.80	0.00	2	2	340.0%	-0.015	0.0002	-1.565	0.028	-0.001
440.00	2.00	0.00	4.80	0.00	1	6	314.1%	-0.011	0.0001	-1.119	0.021	-0.001
450.00	4.00	0.05	6.20	0.00	1	3	318.7%	-0.015	0.0002	-1.441	0.027	-0.001
460.00	4.80	0.00	6.80	0.00	1	4	313.3%	-0.016	0.0002	-1.560	0.030	-0.001
470.00	2.38	0.00	6.80	0.00	1	3	303.0%	-0.017	0.0002	-1.557	0.031	-0.001
480.00	1.70	0.00	6.80	0.00	1	1	292.8%	-0.018	0.0002	-1.555	0.032	-0.001
490.00	0.95	0.00	6.80	0.00	2	8	282.9%	-0.018	0.0002	-1.552	0.033	-0.001
500.00	2.25	0.00	6.80	0.00	55	62	273.1%	-0.019	0.0002	-1.549	0.034	-0.001
510.00	1.93	0.00	6.80	0.00	36	36	263.6%	-0.020	0.0002	-1.546	0.035	-0.001
520.00	0.48	0.00	6.80	0.00	3	6	254.2%	-0.021	0.0003	-1.542	0.036	-0.001
530.00	0.10	0.00	6.80	0.00	1	5	244.9%	-0.021	0.0003	-1.539	0.038	-0.002
535.00	9.50	0.00	4.80	0.00	99	93	224.6%	-0.016	0.0002	-1.106	0.030	-0.001
540.00	0.25	0.00	6.80	0.00	6	48	235.8%	-0.022	0.0003	-1.536	0.039	-0.002
545.00	3.70	0.00	6.80	0.00	4	4	231.3%	-0.023	0.0003	-1.533	0.040	-0.002
550.00	3.10	0.00	6.80	0.00	1	29	226.8%	-0.023	0.0003	-1.531	0.041	-0.002
555.00	4.00	0.00	6.80	0.00	11	11	222.4%	-0.024	0.0003	-1.529	0.041	-0.002
560.00	0.10	0.00	6.80	0.00	1	76	218.0%	-0.024	0.0004	-1.527	0.042	-0.002
565.00	4.50	0.00	6.80	0.00	16	8	213.6%	-0.025	0.0004	-1.525	0.043	-0.002
570.00	1.53	0.00	6.80	0.00	1	4	209.3%	-0.026	0.0004	-1.522	0.044	-0.002
575.00	3.50	0.00	6.80	0.00	1	9	204.9%	-0.026	0.0004	-1.520	0.045	-0.002
580.00	1.50	0.00	6.80	0.00	1	152	200.6%	-0.027	0.0004	-1.517	0.045	-0.002
585.00	5.32	0.00	6.80	0.00	1	21	196.4%	-0.027	0.0004	-1.514	0.046	-0.002
590.00	3.43	0.00	6.80	0.00	1	88	192.2%	-0.028	0.0005	-1.512	0.047	-0.002
595.00	2.50	0.00	6.80	0.00	1	13	187.9%	-0.029	0.0005	-1.508	0.048	-0.002
600.00	1.51	0.00	6.80	0.00	1	581	183.8%	-0.029	0.0005	-1.506	0.049	-0.002
605.00	1.10	0.00	6.80	0.00	9	200	179.6%	-0.030	0.0005	-1.503	0.050	-0.002
610.00	0.10	0.00	6.80	0.00	3	15	175.5%	-0.031	0.0005	-1.499	0.051	-0.002
615.00	9.50	0.00	6.80	0.00	1	2	171.4%	-0.032	0.0006	-1.496	0.052	-0.002
620.00	0.10	0.00	6.80	0.00	1	268	167.3%	-0.033	0.0006	-1.492	0.054	-0.002
625.00	3.62	0.00	6.80	0.00	2	55	163.2%	-0.034	0.0006	-1.489	0.055	-0.002
630.00	1.23	0.00	6.80	0.00	5	10	159.2%	-0.035	0.0007	-1.485	0.056	-0.002
635.00	0.50	0.00	6.80	0.00	1	12	155.1%	-0.035	0.0007	-1.481	0.057	-0.003
640.00	2.88	0.00	3.00	0.00	3	41	127.7%	-0.018	0.0005	-0.688	0.032	-0.001
645.00	3.27	0.00	6.80	0.00	2	13	147.1%	-0.038	0.0008	-1.472	0.060	-0.003
650.00	0.68	0.00	6.80	0.00	2	196	143.1%	-0.039	0.0008	-1.467	0.062	-0.003
652.50	2.73	0.00	6.80	0.00	1	1	141.2%	-0.039	0.0008	-1.465	0.062	-0.003
655.00	34.30	0.00	6.80	0.00	18	60	139.2%	-0.040	0.0008	-1.462	0.063	-0.003
660.00	2.73	0.00	6.80	0.00	1	229	135.2%	-0.041	0.0009	-1.457	0.065	-0.003
665.00	29.42	65.00	73.00	0.00	2	21	422.9%	-0.240	0.0010	-16.048	0.228	-0.020
670.00	3.02	0.00	6.80	0.00	1	158	127.4%	-0.044	0.0010	-1.446	0.068	-0.003
672.50	2.22	0.00	6.80	0.00	8	110	125.4%	-0.045	0.0010	-1.443	0.069	-0.003
675.00	1.29	0.00	6.80	0.00	6	19	123.5%	-0.045	0.0011	-1.440	0.070	-0.003
677.50	2.30	0.00	6.80	0.00	20	10	121.5%	-0.046	0.0011	-1.437	0.071	-0.003
680.00	2.22	0.00	6.80	0.00	2	87	119.6%	-0.047	0.0011	-1.433	0.072	-0.003
685.00	3.18	0.00	6.00	0.00	10	12	112.2%	-0.044	0.0011	-1.276	0.068	-0.003
690.00	0.20	0.00	6.50	0.00	12	53	110.5%	-0.049	0.0012	-1.363	0.074	-0.003
695.00	3.46	0.00	5.60	0.00	1	16	102.8%	-0.045	0.0013	-1.188	0.070	-0.003
700.00	3.56	0.00	0.30	0.00	1	39	59.6%	-0.003	0.0002	-0.068	0.007	-0.000
705.00	2.10	0.00	6.80	0.00	1	9	100.1%	-0.057	0.0016	-1.394	0.084	-0.004
710.00	4.20	0.00	6.80	0.00	5	10	96.3%	-0.059	0.0017	-1.385	0.087	-0.004
715.00	6.43	0.00	1.90	0.00	4	10	69.3%	-0.021	0.0010	-0.430	0.037	-0.001
720.00	5.20	0.00	6.80	0.00	23	36	88.5%	-0.065	0.0019	-1.364	0.093	-0.004
725.00	4.46	0.00	6.80	0.00	1	7	84.6%	-0.068	0.0021	-1.352	0.096	-0.005
730.00	5.40	0.00	3.20	0.00	2	9	66.7%	-0.039	0.0017	-0.689	0.062	-0.003
735.00	18.29	0.00	5.40	0.00	1	6	72.1%	-0.063	0.0023	-1.088	0.091	-0.004
740.00	4.20	0.00	5.70	0.00	1	38	69.4%	-0.070	0.0026	-1.128	0.098	-0.005
745.00	0.85	0.00	5.50	0.00	1	8	64.9%	-0.072	0.0029	-1.081	0.101	-0.005
750.00	1.00	0.00	1.90	0.00	10	125	55.2%	-0.058	0.0028	-0.776	0.085	-0.004
755.00	1.50	0.00	1.25	0.00	2	12	46.5%	-0.044	0.0027	-0.528	0.069	-0.003
760.00	0.50	0.00	1.15	-2.90	1	15	42.3%	-0.045	0.0030	-0.484	0.069	-0.003
765.00	22.40	0.00	1.35	0.00	1	1	40.5%	-0.056	0.0038	-0.551	0.082	-0.004
770.00	2.60	0.00	1.30	0.00	10	18	36.6%	-0.059	0.0044	-0.524	0.087	-0.004
775.00	3.91	0.00	0.90	0.00	2	9	30.2%	-0.049	0.0046	-0.371	0.075	-0.003
780.00	0.65	0.05	1.95	-3.77	5	11	33.4%	-0.100	0.0071	-0.706	0.129	-0.007
782.50	5.50	0.00	1.90	0.00	0	0	31.2%	-0.104	0.0079	-0.679	0.133	-0.007
785.00	1.00	0.00	2.40	-24.95	1	1	31.7%	-0.129	0.0091	-0.805	0.155	-0.009
790.00	3.25	0.00	3.70	0.00	3	44	32.9%	-0.191	0.0113	-1.075	0.200	-0.013
795.00	1.55	0.00	6.20	-2.45	5	148	36.9%	-0.276	0.0123	-1.481	0.245	-0.019
800.00	2.08	0.75	8.10	-3.05	1	95	37.4%	-0.344	0.0134	-1.649	0.270	-0.023
805.00	3.70	1.00	8.90	-4.60	7	4	33.6%	-0.405	0.0157	-1.554	0.285	-0.028
810.00	7.00	3.00	11.20	-3.44	3	38	33.5%	-0.485	0.0162	-1.586	0.293	-0.033
815.00	7.23	6.00	12.90	-6.71	1	1	30.5%	-0.574	0.0175	-1.408	0.288	-0.039
820.00	12.90	9.00	15.50	-9.10	5	4	29.0%	-0.666	0.0171	-1.225	0.267	-0.046
880.00	197.21	264.30	274.00	0.00	0	0	673.1%	-0.432	0.0008	-32.331	0.289	-0.048
960.00	256.00	144.70	154.00	0.00	0	0	118.1%	-0.937	0.0014	-1.687	0.091	-0.075

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.