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

EOD

Jul 20, 2026

0.6900+38.000%(+0.1900)10

Date (EDT)	Open	High	Low	Close	Change	Volume	Open Interest	Change Since
2026-07-20	0.6900	0.6900	0.6900	0.6900	+38.000%	10	715	0.000%
2026-07-17	0.5000	0.5000	0.5000	0.5000	-23.077%	2	718	+38.000%
2026-07-16	0.6500	0.6500	0.6500	0.6500	-23.529%	1	720	+6.154%
2026-07-13	0.8500	0.8500	0.8500	0.8500	+13.333%	10	721	-18.824%
2026-07-10	0.7500	0.7500	0.7500	0.7500	-9.639%	1	721	-8.000%
2026-07-01	0.8000	0.8700	0.8000	0.8300	+20.290%	29	721	-16.867%
2026-06-29	0.7300	0.7300	0.6900	0.6900	-6.757%	8	702	0.000%
2026-06-26	0.5600	0.7400	0.5600	0.7400	-23.711%	10	701	-6.757%
2026-06-24	1.0700	1.0700	0.9700	0.9700	-36.601%	2	701	-28.866%
2026-06-22	1.4500	1.5600	1.4300	1.5300	-0.649%	54	702	-54.902%
2026-06-18	1.5600	1.5600	1.4900	1.5400	+7.692%	32	636	-55.195%
2026-06-16	1.5700	1.5700	1.4300	1.4300	-2.055%	30	636	-51.748%
2026-06-11	1.4500	1.4600	1.2500	1.4600	-4.575%	29	629	-52.740%
2026-06-10	1.3900	1.5300	1.3900	1.5300	+23.387%	2	611	-54.902%
2026-06-08	1.2400	1.2400	1.2400	1.2400	+6.897%	1	611	-44.355%
2026-06-05	1.1600	1.1600	1.1600	1.1600	-24.183%	1	611	-40.517%
2026-06-04	1.4800	1.5600	1.4200	1.5300	-11.047%	61	611	-54.902%
2026-06-03	1.5000	1.7600	1.5000	1.7200	+6.832%	22	607	-59.884%
2026-06-02	1.6100	1.6500	1.6100	1.6100	-2.424%	20	596	-57.143%
2026-06-01	1.5000	1.7500	1.5000	1.6500	+26.923%	45	579	-58.182%
2026-05-27	1.2500	1.3000	1.2500	1.3000	+10.169%	6	566	-46.923%
2026-05-26	1.3100	1.3100	1.1800	1.1800	-9.231%	4	562	-41.525%
2026-05-22	1.4100	1.4100	1.3000	1.3000	-27.778%	28	563	-46.923%
2026-05-21	1.8000	1.8000	1.8000	1.8000	-7.216%	13	551	-61.667%
2026-05-20	1.7800	1.9400	1.7800	1.9400	+9.605%	22	551	-64.433%
2026-05-19	1.9000	1.9000	1.7700	1.7700	-13.659%	7	542	-61.017%
2026-05-15	2.0800	2.1200	2.0500	2.0500	0.000%	19	542	-66.341%
2026-05-14	2.0600	2.0700	2.0500	2.0500	0.000%	5	555	-66.341%
2026-05-13	2.0500	2.0500	2.0500	2.0500	+2.500%	2	555	-66.341%
2026-05-12	2.1000	2.1000	2.0000	2.0000	-9.091%	8	555	-65.500%
2026-05-11	2.0500	2.2000	2.0500	2.2000	-2.222%	2	555	-68.636%
2026-05-07	2.2500	2.2500	2.2500	2.2500	+7.143%	1	553	-69.333%
2026-05-05	2.1000	2.1000	2.1000	2.1000	0.000%	1	553	-67.143%
2026-05-04	2.1000	2.1000	2.1000	2.1000	-5.830%	7	553	-67.143%
2026-05-01	2.3000	2.3900	2.1500	2.2300	-25.667%	50	542	-69.058%
2026-04-30	2.5000	3.0000	2.5000	3.0000	+15.385%	3	542	-77.000%
2026-04-29	2.6000	2.6000	2.6000	2.6000	+6.122%	50	539	-73.462%
2026-04-22	2.4500	2.4500	2.4500	2.4500	-1.210%	10	539	-71.837%
2026-04-21	2.4800	2.4800	2.4800	2.4800	+24.000%	3	538	-72.177%
2026-04-17	2.0000	2.0000	2.0000	2.0000	+2.564%	2	538	-65.500%
2026-04-10	1.9500	1.9500	1.9500	1.9500	-27.778%	2	537	-64.615%
2026-03-11	2.7000	2.7000	2.7000	2.7000	+12.500%	3	535	-74.444%
2026-03-04	2.4000	2.4000	2.4000	2.4000	+15.385%	10	541	-71.250%
2026-02-25	2.0800	2.0800	2.0800	2.0800	+6.122%	1	541	-66.827%
2026-02-24	2.1500	2.1500	1.9600	1.9600	-7.109%	2	541	-64.796%
2026-02-23	2.1100	2.1300	2.1100	2.1100	-4.091%	14	541	-67.299%
2026-02-13	2.1200	2.2000	2.1200	2.2000	-4.348%	2	547	-68.636%
2026-02-11	2.3000	2.3000	2.3000	2.3000	+2.679%	1	547	-70.000%
2026-02-05	2.1500	2.2400	2.1500	2.2400	+9.804%	5	547	-69.196%
2026-02-04	2.0100	2.0400	2.0100	2.0400	-3.318%	8	551	-66.176%
2026-02-03	2.3000	2.3000	2.1100	2.1100	-21.852%	2	556	-67.299%
2026-02-02	2.7000	2.7000	2.7000	2.7000	-8.784%	1	556	-74.444%
2026-01-29	2.9600	2.9600	2.9600	2.9600	-5.128%	1	557	-76.689%
2026-01-22	3.1200	3.1200	3.1200	3.1200	+4.000%	1	557	-77.885%
2026-01-16	3.0000	3.0000	3.0000	3.0000	-3.226%	7	564	-77.000%
2026-01-13	3.1000	3.1000	3.1000	3.1000	+8.014%	1	564	-77.742%
2026-01-09	2.8100	2.8700	2.8100	2.8700	+2.500%	8	564	-75.958%
2026-01-08	2.8000	2.8000	2.8000	2.8000	-9.677%	2	564	-75.357%
2026-01-07	3.0000	3.1000	2.9000	3.1000	-1.587%	83	564	-77.742%
2026-01-06	3.1500	3.1500	3.1500	3.1500	-2.477%	2	493	-78.095%
2026-01-05	3.2300	3.2300	3.2300	3.2300	-13.867%	3	492	-78.638%
2025-12-24	3.7000	3.7500	3.7000	3.7500	-3.846%	12	492	-81.600%
2025-12-22	4.2400	4.2500	3.9000	3.9000	-8.235%	10	492	-82.308%
2025-12-19	4.8000	4.8000	4.2500	4.2500	-10.526%	52	485	-83.765%
2025-12-18	4.8500	4.8500	4.5100	4.7500	0.000%	13	455	-85.474%
2025-12-17	5.0500	5.1000	4.7500	4.7500	-8.654%	8	444	-85.474%
2025-12-16	5.2000	5.2000	5.0500	5.2000	+9.474%	7	437	-86.731%
2025-12-15	4.6500	4.8500	4.6500	4.7500	-3.061%	7	432	-85.474%
2025-12-12	4.9000	5.0000	4.8500	4.9000	-6.667%	14	426	-85.918%
2025-12-11	5.2500	5.2500	5.2000	5.2500	-5.405%	6	412	-86.857%
2025-12-10	5.6500	5.6500	5.4200	5.5500	0.000%	7	407	-87.568%
2025-12-09	5.2500	5.7500	5.2500	5.5500	+8.824%	17	401	-87.568%
2025-12-08	5.1500	5.1500	5.0000	5.1000	+6.250%	6	399	-86.471%
2025-12-05	4.8500	4.9500	4.8000	4.8000	+3.226%	7	394	-85.625%
2025-12-04	4.5500	4.6500	4.5000	4.6500	+5.682%	60	390	-85.161%
2025-12-03	4.5500	4.6000	4.4000	4.4000	-8.333%	10	372	-84.318%
2025-12-02	4.6500	4.8000	4.6500	4.8000	+9.840%	10	368	-85.625%
2025-11-26	4.3500	4.3700	4.3500	4.3700	-2.889%	2	360	-84.211%
2025-11-25	4.6000	4.6000	4.5000	4.5000	-10.000%	6	360	-84.667%
2025-11-24	5.1000	5.1000	4.8000	5.0000	-10.714%	8	360	-86.200%
2025-11-21	5.6000	5.6000	5.6000	5.6000	-18.248%	1	355	-87.679%
2025-11-19	6.8500	6.8500	6.8500	6.8500	-2.837%	1	356	-89.927%
2025-11-13	6.8000	7.1800	6.8000	7.0500	-4.212%	6	356	-90.213%
2025-11-12	7.9000	7.9000	7.3600	7.3600	-6.835%	22	356	-90.625%
2025-11-11	8.3000	8.3000	7.9000	7.9000	-20.762%	4	375	-91.266%
2025-11-07	9.9700	9.9700	9.9700	9.9700	-4.319%	1	375	-93.079%
2025-11-03	10.5000	10.5000	10.4100	10.4200	+17.079%	8	369	-93.378%
2025-10-30	9.8200	10.0000	8.9000	8.9000	-1.111%	11	369	-92.247%
2025-10-29	9.0000	9.0000	9.0000	9.0000	+0.559%	5	359	-92.333%
2025-10-28	8.9500	8.9500	8.9500	8.9500	+0.562%	1	354	-92.291%
2025-10-24	8.9000	8.9000	8.9000	8.9000	-12.916%	5	354	-92.247%
2025-10-15	10.2200	10.2200	10.2200	10.2200	+12.308%	1	357	-93.249%
2025-10-09	9.1000	9.1000	9.1000	9.1000	0.000%	1	358	-92.418%
2025-10-08	9.0000	9.1000	9.0000	9.1000	+1.676%	9	359	-92.418%
2025-10-07	9.0000	9.0000	8.7000	8.9500	+6.675%	19	348	-92.291%
2025-10-06	8.3900	8.3900	8.3900	8.3900	+1.697%	10	348	-91.776%
2025-10-03	8.1500	8.4000	8.1500	8.2500	-4.624%	10	354	-91.636%
2025-10-02	8.6500	8.6500	8.6500	8.6500	+10.897%	2	357	-92.023%
2025-10-01	8.4500	8.4500	7.8000	7.8000	-33.617%	30	357	-91.154%
2025-09-30	11.7500	11.7500	11.7500	11.7500	0.000%	1	362	-94.128%
2025-09-16	11.8500	11.8500	11.7500	11.7500	+6.818%	13	363	-94.128%
2025-09-12	10.6000	11.0000	10.6000	11.0000	+8.374%	49	353	-93.727%
2025-09-11	10.0000	10.2500	9.9500	10.1500	-3.791%	40	304	-93.202%
2025-09-10	10.5500	10.5500	10.5500	10.5500	+3.431%	1	277	-93.460%
2025-09-02	10.2000	10.2000	10.2000	10.2000	+9.325%	5	277	-93.235%
2025-08-22	9.4700	9.4700	9.3300	9.3300	-13.048%	2	274	-92.605%
2025-08-18	10.2300	10.7300	10.1500	10.7300	-21.103%	35	275	-93.569%
2025-08-01	13.6000	13.6000	13.6000	13.6000	+22.744%	3	247	-94.926%
2025-07-30	11.0800	11.0800	11.0800	11.0800	+3.551%	1	244	-93.773%
2025-07-28	10.7000	10.7000	10.7000	10.7000	-5.727%	25	243	-93.551%
2025-07-23	11.3500	11.3500	11.3500	11.3500	-7.347%	1	224	-93.921%
2025-07-22	12.5500	12.5500	12.2500	12.2500	+6.614%	39	223	-94.367%
2025-07-09	11.5500	11.5500	11.4900	11.4900	-12.557%	15	207	-93.995%
2025-07-07	13.1000	13.1400	13.1000	13.1400	-7.465%	3	206	-94.749%
2025-06-30	14.2000	14.2000	14.2000	14.2000	-1.389%	8	209	-95.141%
2025-06-27	14.2000	14.4000	14.2000	14.4000	0.000%	10	201	-95.208%
2025-06-26	14.4000	14.4000	14.4000	14.4000	+3.971%	13	191	-95.208%
2025-06-25	13.8400	13.8500	13.8400	13.8500	-8.278%	18	180	-95.018%
2025-06-18	15.0700	15.1000	15.0700	15.1000	0.000%	8	196	-95.430%
2025-06-09	15.2000	15.2000	15.1000	15.1000	0.000%	57	196	-95.430%
2025-06-06	15.1000	15.1000	15.1000	15.1000	-6.502%	2	190	-95.430%
2025-05-23	16.1500	16.1500	16.1500	16.1500	-9.270%	2	191	-95.728%
2025-05-15	17.8000	17.8000	17.8000	17.8000	+27.143%	1	191	-96.124%
2025-04-07	14.9000	14.9000	14.0000	14.0000	+28.205%	8	191	-95.071%
2025-04-03	10.9200	10.9200	10.9200	10.9200	+3.507%	1	197	-93.681%
2025-04-02	10.5200	10.5500	10.4500	10.5500	+1.442%	3	196	-93.460%
2025-04-01	10.4000	10.4000	10.4000	10.4000	+11.828%	3	196	-93.365%
2025-03-28	9.3000	9.3000	9.3000	9.3000	-4.908%	14	193	-92.581%
2025-03-25	9.8800	9.8800	9.7800	9.7800	+18.545%	9	200	-92.945%
2025-03-14	8.2500	8.2500	8.2500	8.2500	-2.597%	10	193	-91.636%
2025-02-25	8.5500	8.5500	8.4700	8.4700	-3.200%	7	194	-91.854%
2025-02-24	9.0000	9.0000	8.7500	8.7500	-11.616%	7	194	-92.114%
2025-02-21	9.9000	9.9000	9.9000	9.9000	-4.348%	14	192	-93.030%
2025-02-20	10.2400	10.3500	10.2400	10.3500	-4.167%	2	185	-93.333%
2025-02-19	10.8000	10.8000	10.8000	10.8000	-7.137%	1	183	-93.611%
2025-02-14	11.6300	11.6300	11.6300	11.6300	+6.795%	6	180	-94.067%
2025-02-13	10.8900	10.8900	10.8900	10.8900	+6.765%	2	180	-93.664%
2025-02-11	9.0500	10.2000	9.0500	10.2000	+2.000%	2	179	-93.235%
2025-02-10	10.0000	10.0000	10.0000	10.0000	+11.111%	8	177	-93.100%
2025-02-06	9.0000	9.0000	9.0000	9.0000	+4.408%	1	176	-92.333%
2025-02-04	8.1900	9.1300	8.1900	8.6200	+37.920%	7	176	-91.995%
2025-01-27	6.2500	6.2500	6.2500	6.2500	-6.156%	1	176	-88.960%
2025-01-24	6.6600	6.6600	6.6600	6.6600	+9.360%	2	175	-89.640%
2025-01-17	6.0900	6.0900	6.0900	6.0900	+7.788%	2	174	-88.670%
2025-01-16	5.6500	5.6500	5.6500	5.6500	-8.130%	3	174	-87.788%
2025-01-08	6.1500	6.1500	6.1500	6.1500	+1.653%	1	173	-88.780%
2025-01-02	6.0500	6.0500	6.0500	6.0500	-0.820%	1	173	-88.595%
2024-12-26	6.1000	6.1000	6.1000	6.1000	-2.400%	1	172	-88.689%
2024-12-19	6.2500	6.2500	6.2500	6.2500	+5.932%	7	171	-88.960%
2024-12-18	5.9000	5.9000	5.9000	5.9000	0.000%	1	164	-88.305%
2024-12-17	5.9000	5.9000	5.9000	5.9000	+0.855%	7	163	-88.305%
2024-12-04	5.8500	5.8500	5.8500	5.8500	-13.971%	4	163	-88.205%
2024-11-21	6.8000	6.8000	6.8000	6.8000	+16.041%	1	159	-89.853%
2024-11-12	5.8600	5.8600	5.8600	5.8600	+9.944%	1	159	-88.225%
2024-10-29	5.3300	5.3300	5.3300	5.3300	+6.600%	1	158	-87.054%
2024-10-22	4.9500	5.0000	4.9500	5.0000	+8.696%	66	158	-86.200%
2024-10-09	4.6000	4.6000	4.6000	4.6000	-2.128%	4	92	-85.000%
2024-10-03	4.7000	4.7000	4.6500	4.7000	+11.905%	30	88	-85.319%
2024-09-27	4.2900	4.2900	4.2000	4.2000	+7.692%	16	58	-83.571%
2024-09-24	4.0000	4.0000	3.9000	3.9000	+2.632%	11	50	-82.308%
2024-09-16	3.8000	3.8000	3.8000	3.8000	-12.644%	1	52	-81.842%
2024-09-09	4.4000	4.4000	4.3500	4.3500	+16.000%	14	52	-84.138%
2024-08-29	3.7000	3.7500	3.7000	3.7500	-4.822%	100	43	-81.600%
2024-08-23	3.9400	3.9400	3.9400	3.9400	-12.444%	2	115	-82.487%
2024-08-07	4.5000	4.5000	4.5000	4.5000	-4.255%	50	114	-84.667%
2024-08-05	4.7000	4.7000	4.7000	4.7000	+17.500%	7	64	-85.319%
2024-08-01	3.8700	4.0000	3.8700	4.0000	+9.589%	51	64	-82.750%
2024-07-30	3.2000	3.6500	3.2000	3.6500	+46.000%	9	13	-81.096%
2024-06-05	2.5000	2.5000	2.5000	2.5000	-18.033%	7	10	-72.400%
2024-05-29	3.0500	3.0500	3.0500	3.0500	+7.018%	1	11	-77.377%
2024-05-28	2.7500	2.8500	2.7000	2.8500	+16.327%	4	10	-75.789%
2024-05-24	2.4500	2.4500	2.4500	2.4500	-2.000%	6	3	-71.837%
2024-04-23	2.5000	2.5000	2.5000	2.5000	-13.793%	2	3	-72.400%
2024-04-11	2.9000	2.9000	2.9000	2.9000	0.000%	1	1	-76.207%