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MRK20261218P85
MRK Dec 18 2026 85.00 Put (MRK261218P00085000)
option OPRA

EOD

Sep 3, 2026

0.0800-20.000%(-0.0200)27

Date (EDT)	Open	High	Low	Close	Change	Volume	Open Interest	Change Since
2026-09-03	0.0600	0.1000	0.0600	0.0800	-20.000%	27	629	0.000%
2026-09-02	0.1000	0.1000	0.0900	0.1000	0.000%	9	611	-20.000%
2026-09-01	0.0800	0.1000	0.0800	0.1000	0.000%	6	620	-20.000%
2026-08-31	0.0900	0.1000	0.0900	0.1000	-9.091%	6	625	-20.000%
2026-08-28	0.0900	0.1100	0.0500	0.1100	+10.000%	6	631	-27.273%
2026-08-27	0.1000	0.1000	0.1000	0.1000	+11.111%	6	634	-20.000%
2026-08-26	0.0900	0.1000	0.0900	0.0900	-30.769%	6	637	-11.111%
2026-08-25	0.0300	0.1300	0.0300	0.1300	+18.182%	36	643	-38.462%
2026-08-24	0.0600	0.1100	0.0600	0.1100	+22.222%	7	649	-27.273%
2026-08-21	0.0900	0.1500	0.0900	0.0900	-10.000%	10	654	-11.111%
2026-08-20	0.0500	0.1000	0.0300	0.1000	-60.000%	7	659	-20.000%
2026-08-17	0.2500	0.2500	0.2500	0.2500	+19.048%	1	664	-68.000%
2026-08-14	0.1200	0.2200	0.1200	0.2100	-25.000%	6	664	-61.905%
2026-08-13	0.2600	0.2800	0.2100	0.2800	-9.677%	54	670	-71.429%
2026-08-12	0.3100	0.3100	0.3100	0.3100	-11.429%	3	707	-74.194%
2026-08-10	0.3900	0.3900	0.3500	0.3500	-12.500%	8	707	-77.143%
2026-08-06	0.4000	0.4000	0.4000	0.4000	-27.273%	1	709	-80.000%
2026-08-04	0.5600	0.5600	0.5500	0.5500	+22.222%	26	710	-85.455%
2026-07-31	0.5400	0.5400	0.4500	0.4500	-22.414%	3	710	-82.222%
2026-07-30	0.4900	0.5800	0.4900	0.5800	+16.000%	2	713	-86.207%
2026-07-28	0.5000	0.5000	0.5000	0.5000	+2.041%	1	713	-84.000%
2026-07-24	0.5000	0.5000	0.4900	0.4900	-28.986%	2	714	-83.673%
2026-07-20	0.6900	0.6900	0.6900	0.6900	+38.000%	10	715	-88.406%
2026-07-17	0.5000	0.5000	0.5000	0.5000	-23.077%	2	718	-84.000%
2026-07-16	0.6500	0.6500	0.6500	0.6500	-23.529%	1	720	-87.692%
2026-07-13	0.8500	0.8500	0.8500	0.8500	+13.333%	10	721	-90.588%
2026-07-10	0.7500	0.7500	0.7500	0.7500	-9.639%	1	721	-89.333%
2026-07-01	0.8000	0.8700	0.8000	0.8300	+20.290%	29	721	-90.361%
2026-06-29	0.7300	0.7300	0.6900	0.6900	-6.757%	8	702	-88.406%
2026-06-26	0.5600	0.7400	0.5600	0.7400	-23.711%	10	701	-89.189%
2026-06-24	1.0700	1.0700	0.9700	0.9700	-36.601%	2	701	-91.753%
2026-06-22	1.4500	1.5600	1.4300	1.5300	-0.649%	54	702	-94.771%
2026-06-18	1.5600	1.5600	1.4900	1.5400	+7.692%	32	636	-94.805%
2026-06-16	1.5700	1.5700	1.4300	1.4300	-2.055%	30	636	-94.406%
2026-06-11	1.4500	1.4600	1.2500	1.4600	-4.575%	29	629	-94.521%
2026-06-10	1.3900	1.5300	1.3900	1.5300	+23.387%	2	611	-94.771%
2026-06-08	1.2400	1.2400	1.2400	1.2400	+6.897%	1	611	-93.548%
2026-06-05	1.1600	1.1600	1.1600	1.1600	-24.183%	1	611	-93.103%
2026-06-04	1.4800	1.5600	1.4200	1.5300	-11.047%	61	611	-94.771%
2026-06-03	1.5000	1.7600	1.5000	1.7200	+6.832%	22	607	-95.349%
2026-06-02	1.6100	1.6500	1.6100	1.6100	-2.424%	20	596	-95.031%
2026-06-01	1.5000	1.7500	1.5000	1.6500	+26.923%	45	579	-95.152%
2026-05-27	1.2500	1.3000	1.2500	1.3000	+10.169%	6	566	-93.846%
2026-05-26	1.3100	1.3100	1.1800	1.1800	-9.231%	4	562	-93.220%
2026-05-22	1.4100	1.4100	1.3000	1.3000	-27.778%	28	563	-93.846%
2026-05-21	1.8000	1.8000	1.8000	1.8000	-7.216%	13	551	-95.556%
2026-05-20	1.7800	1.9400	1.7800	1.9400	+9.605%	22	551	-95.876%
2026-05-19	1.9000	1.9000	1.7700	1.7700	-13.659%	7	542	-95.480%
2026-05-15	2.0800	2.1200	2.0500	2.0500	0.000%	19	542	-96.098%
2026-05-14	2.0600	2.0700	2.0500	2.0500	0.000%	5	555	-96.098%
2026-05-13	2.0500	2.0500	2.0500	2.0500	+2.500%	2	555	-96.098%
2026-05-12	2.1000	2.1000	2.0000	2.0000	-9.091%	8	555	-96.000%
2026-05-11	2.0500	2.2000	2.0500	2.2000	-2.222%	2	555	-96.364%
2026-05-07	2.2500	2.2500	2.2500	2.2500	+7.143%	1	553	-96.444%
2026-05-05	2.1000	2.1000	2.1000	2.1000	0.000%	1	553	-96.190%
2026-05-04	2.1000	2.1000	2.1000	2.1000	-5.830%	7	553	-96.190%
2026-05-01	2.3000	2.3900	2.1500	2.2300	-25.667%	50	542	-96.413%
2026-04-30	2.5000	3.0000	2.5000	3.0000	+15.385%	3	542	-97.333%
2026-04-29	2.6000	2.6000	2.6000	2.6000	+6.122%	50	539	-96.923%
2026-04-22	2.4500	2.4500	2.4500	2.4500	-1.210%	10	539	-96.735%
2026-04-21	2.4800	2.4800	2.4800	2.4800	+24.000%	3	538	-96.774%
2026-04-17	2.0000	2.0000	2.0000	2.0000	+2.564%	2	538	-96.000%
2026-04-10	1.9500	1.9500	1.9500	1.9500	-27.778%	2	537	-95.897%
2026-03-11	2.7000	2.7000	2.7000	2.7000	+12.500%	3	535	-97.037%
2026-03-04	2.4000	2.4000	2.4000	2.4000	+15.385%	10	541	-96.667%
2026-02-25	2.0800	2.0800	2.0800	2.0800	+6.122%	1	541	-96.154%
2026-02-24	2.1500	2.1500	1.9600	1.9600	-7.109%	2	541	-95.918%
2026-02-23	2.1100	2.1300	2.1100	2.1100	-4.091%	14	541	-96.209%
2026-02-13	2.1200	2.2000	2.1200	2.2000	-4.348%	2	547	-96.364%
2026-02-11	2.3000	2.3000	2.3000	2.3000	+2.679%	1	547	-96.522%
2026-02-05	2.1500	2.2400	2.1500	2.2400	+9.804%	5	547	-96.429%
2026-02-04	2.0100	2.0400	2.0100	2.0400	-3.318%	8	551	-96.078%
2026-02-03	2.3000	2.3000	2.1100	2.1100	-21.852%	2	556	-96.209%
2026-02-02	2.7000	2.7000	2.7000	2.7000	-8.784%	1	556	-97.037%
2026-01-29	2.9600	2.9600	2.9600	2.9600	-5.128%	1	557	-97.297%
2026-01-22	3.1200	3.1200	3.1200	3.1200	+4.000%	1	557	-97.436%
2026-01-16	3.0000	3.0000	3.0000	3.0000	-3.226%	7	564	-97.333%
2026-01-13	3.1000	3.1000	3.1000	3.1000	+8.014%	1	564	-97.419%
2026-01-09	2.8100	2.8700	2.8100	2.8700	+2.500%	8	564	-97.213%
2026-01-08	2.8000	2.8000	2.8000	2.8000	-9.677%	2	564	-97.143%
2026-01-07	3.0000	3.1000	2.9000	3.1000	-1.587%	83	564	-97.419%
2026-01-06	3.1500	3.1500	3.1500	3.1500	-2.477%	2	493	-97.460%
2026-01-05	3.2300	3.2300	3.2300	3.2300	-13.867%	3	492	-97.523%
2025-12-24	3.7000	3.7500	3.7000	3.7500	-3.846%	12	492	-97.867%
2025-12-22	4.2400	4.2500	3.9000	3.9000	-8.235%	10	492	-97.949%
2025-12-19	4.8000	4.8000	4.2500	4.2500	-10.526%	52	485	-98.118%
2025-12-18	4.8500	4.8500	4.5100	4.7500	0.000%	13	455	-98.316%
2025-12-17	5.0500	5.1000	4.7500	4.7500	-8.654%	8	444	-98.316%
2025-12-16	5.2000	5.2000	5.0500	5.2000	+9.474%	7	437	-98.462%
2025-12-15	4.6500	4.8500	4.6500	4.7500	-3.061%	7	432	-98.316%
2025-12-12	4.9000	5.0000	4.8500	4.9000	-6.667%	14	426	-98.367%
2025-12-11	5.2500	5.2500	5.2000	5.2500	-5.405%	6	412	-98.476%
2025-12-10	5.6500	5.6500	5.4200	5.5500	0.000%	7	407	-98.559%
2025-12-09	5.2500	5.7500	5.2500	5.5500	+8.824%	17	401	-98.559%
2025-12-08	5.1500	5.1500	5.0000	5.1000	+6.250%	6	399	-98.431%
2025-12-05	4.8500	4.9500	4.8000	4.8000	+3.226%	7	394	-98.333%
2025-12-04	4.5500	4.6500	4.5000	4.6500	+5.682%	60	390	-98.280%
2025-12-03	4.5500	4.6000	4.4000	4.4000	-8.333%	10	372	-98.182%
2025-12-02	4.6500	4.8000	4.6500	4.8000	+9.840%	10	368	-98.333%
2025-11-26	4.3500	4.3700	4.3500	4.3700	-2.889%	2	360	-98.169%
2025-11-25	4.6000	4.6000	4.5000	4.5000	-10.000%	6	360	-98.222%
2025-11-24	5.1000	5.1000	4.8000	5.0000	-10.714%	8	360	-98.400%
2025-11-21	5.6000	5.6000	5.6000	5.6000	-18.248%	1	355	-98.571%
2025-11-19	6.8500	6.8500	6.8500	6.8500	-2.837%	1	356	-98.832%
2025-11-13	6.8000	7.1800	6.8000	7.0500	-4.212%	6	356	-98.865%
2025-11-12	7.9000	7.9000	7.3600	7.3600	-6.835%	22	356	-98.913%
2025-11-11	8.3000	8.3000	7.9000	7.9000	-20.762%	4	375	-98.987%
2025-11-07	9.9700	9.9700	9.9700	9.9700	-4.319%	1	375	-99.198%
2025-11-03	10.5000	10.5000	10.4100	10.4200	+17.079%	8	369	-99.232%
2025-10-30	9.8200	10.0000	8.9000	8.9000	-1.111%	11	369	-99.101%
2025-10-29	9.0000	9.0000	9.0000	9.0000	+0.559%	5	359	-99.111%
2025-10-28	8.9500	8.9500	8.9500	8.9500	+0.562%	1	354	-99.106%
2025-10-24	8.9000	8.9000	8.9000	8.9000	-12.916%	5	354	-99.101%
2025-10-15	10.2200	10.2200	10.2200	10.2200	+12.308%	1	357	-99.217%
2025-10-09	9.1000	9.1000	9.1000	9.1000	0.000%	1	358	-99.121%
2025-10-08	9.0000	9.1000	9.0000	9.1000	+1.676%	9	359	-99.121%
2025-10-07	9.0000	9.0000	8.7000	8.9500	+6.675%	19	348	-99.106%
2025-10-06	8.3900	8.3900	8.3900	8.3900	+1.697%	10	348	-99.046%
2025-10-03	8.1500	8.4000	8.1500	8.2500	-4.624%	10	354	-99.030%
2025-10-02	8.6500	8.6500	8.6500	8.6500	+10.897%	2	357	-99.075%
2025-10-01	8.4500	8.4500	7.8000	7.8000	-33.617%	30	357	-98.974%
2025-09-30	11.7500	11.7500	11.7500	11.7500	0.000%	1	362	-99.319%
2025-09-16	11.8500	11.8500	11.7500	11.7500	+6.818%	13	363	-99.319%
2025-09-12	10.6000	11.0000	10.6000	11.0000	+8.374%	49	353	-99.273%
2025-09-11	10.0000	10.2500	9.9500	10.1500	-3.791%	40	304	-99.212%
2025-09-10	10.5500	10.5500	10.5500	10.5500	+3.431%	1	277	-99.242%
2025-09-02	10.2000	10.2000	10.2000	10.2000	+9.325%	5	277	-99.216%
2025-08-22	9.4700	9.4700	9.3300	9.3300	-13.048%	2	274	-99.143%
2025-08-18	10.2300	10.7300	10.1500	10.7300	-21.103%	35	275	-99.254%
2025-08-01	13.6000	13.6000	13.6000	13.6000	+22.744%	3	247	-99.412%
2025-07-30	11.0800	11.0800	11.0800	11.0800	+3.551%	1	244	-99.278%
2025-07-28	10.7000	10.7000	10.7000	10.7000	-5.727%	25	243	-99.252%
2025-07-23	11.3500	11.3500	11.3500	11.3500	-7.347%	1	224	-99.295%
2025-07-22	12.5500	12.5500	12.2500	12.2500	+6.614%	39	223	-99.347%
2025-07-09	11.5500	11.5500	11.4900	11.4900	-12.557%	15	207	-99.304%
2025-07-07	13.1000	13.1400	13.1000	13.1400	-7.465%	3	206	-99.391%
2025-06-30	14.2000	14.2000	14.2000	14.2000	-1.389%	8	209	-99.437%
2025-06-27	14.2000	14.4000	14.2000	14.4000	0.000%	10	201	-99.444%
2025-06-26	14.4000	14.4000	14.4000	14.4000	+3.971%	13	191	-99.444%
2025-06-25	13.8400	13.8500	13.8400	13.8500	-8.278%	18	180	-99.422%
2025-06-18	15.0700	15.1000	15.0700	15.1000	0.000%	8	196	-99.470%
2025-06-09	15.2000	15.2000	15.1000	15.1000	0.000%	57	196	-99.470%
2025-06-06	15.1000	15.1000	15.1000	15.1000	-6.502%	2	190	-99.470%
2025-05-23	16.1500	16.1500	16.1500	16.1500	-9.270%	2	191	-99.505%
2025-05-15	17.8000	17.8000	17.8000	17.8000	+27.143%	1	191	-99.551%
2025-04-07	14.9000	14.9000	14.0000	14.0000	+28.205%	8	191	-99.429%
2025-04-03	10.9200	10.9200	10.9200	10.9200	+3.507%	1	197	-99.267%
2025-04-02	10.5200	10.5500	10.4500	10.5500	+1.442%	3	196	-99.242%
2025-04-01	10.4000	10.4000	10.4000	10.4000	+11.828%	3	196	-99.231%
2025-03-28	9.3000	9.3000	9.3000	9.3000	-4.908%	14	193	-99.140%
2025-03-25	9.8800	9.8800	9.7800	9.7800	+18.545%	9	200	-99.182%
2025-03-14	8.2500	8.2500	8.2500	8.2500	-2.597%	10	193	-99.030%
2025-02-25	8.5500	8.5500	8.4700	8.4700	-3.200%	7	194	-99.055%
2025-02-24	9.0000	9.0000	8.7500	8.7500	-11.616%	7	194	-99.086%
2025-02-21	9.9000	9.9000	9.9000	9.9000	-4.348%	14	192	-99.192%
2025-02-20	10.2400	10.3500	10.2400	10.3500	-4.167%	2	185	-99.227%
2025-02-19	10.8000	10.8000	10.8000	10.8000	-7.137%	1	183	-99.259%
2025-02-14	11.6300	11.6300	11.6300	11.6300	+6.795%	6	180	-99.312%
2025-02-13	10.8900	10.8900	10.8900	10.8900	+6.765%	2	180	-99.265%
2025-02-11	9.0500	10.2000	9.0500	10.2000	+2.000%	2	179	-99.216%
2025-02-10	10.0000	10.0000	10.0000	10.0000	+11.111%	8	177	-99.200%
2025-02-06	9.0000	9.0000	9.0000	9.0000	+4.408%	1	176	-99.111%
2025-02-04	8.1900	9.1300	8.1900	8.6200	+37.920%	7	176	-99.072%
2025-01-27	6.2500	6.2500	6.2500	6.2500	-6.156%	1	176	-98.720%
2025-01-24	6.6600	6.6600	6.6600	6.6600	+9.360%	2	175	-98.799%
2025-01-17	6.0900	6.0900	6.0900	6.0900	+7.788%	2	174	-98.686%
2025-01-16	5.6500	5.6500	5.6500	5.6500	-8.130%	3	174	-98.584%
2025-01-08	6.1500	6.1500	6.1500	6.1500	+1.653%	1	173	-98.699%
2025-01-02	6.0500	6.0500	6.0500	6.0500	-0.820%	1	173	-98.678%
2024-12-26	6.1000	6.1000	6.1000	6.1000	-2.400%	1	172	-98.689%
2024-12-19	6.2500	6.2500	6.2500	6.2500	+5.932%	7	171	-98.720%
2024-12-18	5.9000	5.9000	5.9000	5.9000	0.000%	1	164	-98.644%
2024-12-17	5.9000	5.9000	5.9000	5.9000	+0.855%	7	163	-98.644%
2024-12-04	5.8500	5.8500	5.8500	5.8500	-13.971%	4	163	-98.632%
2024-11-21	6.8000	6.8000	6.8000	6.8000	+16.041%	1	159	-98.824%
2024-11-12	5.8600	5.8600	5.8600	5.8600	+9.944%	1	159	-98.635%
2024-10-29	5.3300	5.3300	5.3300	5.3300	+6.600%	1	158	-98.499%
2024-10-22	4.9500	5.0000	4.9500	5.0000	+8.696%	66	158	-98.400%
2024-10-09	4.6000	4.6000	4.6000	4.6000	-2.128%	4	92	-98.261%
2024-10-03	4.7000	4.7000	4.6500	4.7000	+11.905%	30	88	-98.298%
2024-09-27	4.2900	4.2900	4.2000	4.2000	+7.692%	16	58	-98.095%
2024-09-24	4.0000	4.0000	3.9000	3.9000	+2.632%	11	50	-97.949%
2024-09-16	3.8000	3.8000	3.8000	3.8000	-12.644%	1	52	-97.895%
2024-09-09	4.4000	4.4000	4.3500	4.3500	+16.000%	14	52	-98.161%
2024-08-29	3.7000	3.7500	3.7000	3.7500	-4.822%	100	43	-97.867%
2024-08-23	3.9400	3.9400	3.9400	3.9400	-12.444%	2	115	-97.970%
2024-08-07	4.5000	4.5000	4.5000	4.5000	-4.255%	50	114	-98.222%
2024-08-05	4.7000	4.7000	4.7000	4.7000	+17.500%	7	64	-98.298%
2024-08-01	3.8700	4.0000	3.8700	4.0000	+9.589%	51	64	-98.000%
2024-07-30	3.2000	3.6500	3.2000	3.6500	+46.000%	9	13	-97.808%
2024-06-05	2.5000	2.5000	2.5000	2.5000	-18.033%	7	10	-96.800%
2024-05-29	3.0500	3.0500	3.0500	3.0500	+7.018%	1	11	-97.377%
2024-05-28	2.7500	2.8500	2.7000	2.8500	+16.327%	4	10	-97.193%
2024-05-24	2.4500	2.4500	2.4500	2.4500	-2.000%	6	3	-96.735%
2024-04-23	2.5000	2.5000	2.5000	2.5000	-13.793%	2	3	-96.800%
2024-04-11	2.9000	2.9000	2.9000	2.9000	0.000%	1	1	-97.241%