Dark

MRK20261218P75
MRK Dec 18 2026 75.00 Put (MRK261218P00075000)
option OPRA

EOD

Aug 31, 2026

0.1100+37.500%(+0.0300)7

Date (EDT)	Open	High	Low	Close	Change	Volume	Open Interest	Change Since
2026-08-31	0.0800	0.1100	0.0800	0.1100	+37.500%	7	1,393	0.000%
2026-08-28	0.0800	0.0800	0.0800	0.0800	-65.217%	5	1,400	+37.500%
2026-08-25	0.2300	0.2300	0.2300	0.2300	+53.333%	10	1,405	-52.174%
2026-08-20	0.1500	0.1500	0.1500	0.1500	-16.667%	1	1,405	-26.667%
2026-08-19	0.1000	0.1800	0.1000	0.1800	+50.000%	2	1,405	-38.889%
2026-08-18	0.1200	0.1200	0.1200	0.1200	-7.692%	10	1,405	-8.333%
2026-08-14	0.1300	0.1400	0.1200	0.1300	-13.333%	31	1,415	-15.385%
2026-08-13	0.1500	0.1500	0.1500	0.1500	-11.765%	2	1,422	-26.667%
2026-08-12	0.1700	0.1700	0.1700	0.1700	-15.000%	2	1,424	-35.294%
2026-08-10	0.2000	0.2000	0.2000	0.2000	-20.000%	3	1,424	-45.000%
2026-08-03	0.2200	0.2700	0.2200	0.2500	-3.846%	8	1,427	-56.000%
2026-07-31	0.2700	0.2700	0.2600	0.2600	+4.000%	6	1,433	-57.692%
2026-07-30	0.2500	0.2500	0.2500	0.2500	+4.167%	1	1,439	-56.000%
2026-07-28	0.2400	0.2400	0.2400	0.2400	-25.000%	1	1,439	-54.167%
2026-07-21	0.3200	0.3200	0.3200	0.3200	-20.000%	1	1,440	-65.625%
2026-07-14	0.4000	0.4000	0.4000	0.4000	0.000%	2	1,439	-72.500%
2026-07-06	0.3400	0.4000	0.3400	0.4000	+25.000%	6	1,437	-72.500%
2026-07-01	0.3200	0.3200	0.3200	0.3200	-5.882%	2	1,434	-65.625%
2026-06-29	0.3700	0.3700	0.3400	0.3400	-10.526%	5	1,436	-67.647%
2026-06-26	0.3800	0.3800	0.3800	0.3800	-22.449%	4	1,435	-71.053%
2026-06-25	0.4900	0.4900	0.4900	0.4900	-18.333%	4	1,435	-77.551%
2026-06-24	0.5000	0.6000	0.5000	0.6000	-24.051%	6	1,435	-81.667%
2026-06-22	0.7000	0.7900	0.7000	0.7900	0.000%	11	1,440	-86.076%
2026-06-18	0.7900	0.7900	0.7900	0.7900	-13.187%	1	1,429	-86.076%
2026-06-15	0.9100	0.9100	0.9100	0.9100	+10.976%	1	1,429	-87.912%
2026-06-12	0.8200	0.8200	0.8200	0.8200	-9.890%	1	1,429	-86.585%
2026-06-10	0.7700	0.9100	0.7000	0.9100	+21.333%	12	1,428	-87.912%
2026-06-08	0.6100	0.7500	0.6100	0.7500	+25.000%	12	1,425	-85.333%
2026-06-05	0.6500	0.7100	0.6000	0.6000	-14.286%	12	1,431	-81.667%
2026-06-04	0.7000	0.7000	0.7000	0.7000	-24.731%	20	1,425	-84.286%
2026-05-29	0.9300	0.9300	0.9300	0.9300	+34.783%	1	1,405	-88.172%
2026-05-27	0.6900	0.6900	0.6900	0.6900	-5.479%	4	1,404	-84.058%
2026-05-26	0.6700	0.7300	0.6600	0.7300	-14.118%	5	1,408	-84.932%
2026-05-22	0.8500	0.8500	0.8500	0.8500	-44.444%	1	1,408	-87.059%
2026-05-21	1.5300	1.5300	1.5300	1.5300	+54.545%	1	1,408	-92.810%
2026-05-18	0.9900	0.9900	0.9900	0.9900	+2.062%	6	1,408	-88.889%
2026-05-14	0.9700	0.9700	0.9700	0.9700	-2.020%	2	1,403	-88.660%
2026-05-13	0.9900	0.9900	0.9900	0.9900	+4.211%	1	1,407	-88.889%
2026-05-12	0.9500	0.9500	0.9500	0.9500	-18.103%	4	1,407	-88.421%
2026-05-07	1.1600	1.1600	1.1600	1.1600	+7.407%	1	1,407	-90.517%
2026-05-04	1.1500	1.1500	1.0800	1.0800	-8.475%	5	1,407	-89.815%
2026-05-01	1.1800	1.1800	1.1800	1.1800	-7.087%	4	1,403	-90.678%
2026-04-30	1.2700	1.2700	1.2700	1.2700	-12.414%	1	1,403	-91.339%
2026-04-28	1.4500	1.4500	1.4500	1.4500	-4.605%	75	1,403	-92.414%
2026-04-27	1.5200	1.5200	1.5200	1.5200	+11.765%	4	1,328	-92.763%
2026-04-21	1.3600	1.3600	1.3600	1.3600	+25.926%	2	1,328	-91.912%
2026-04-20	1.0800	1.0800	1.0800	1.0800	-9.244%	3	1,328	-89.815%
2026-04-16	1.1900	1.1900	1.1900	1.1900	-0.833%	3	1,328	-90.756%
2026-04-15	1.2000	1.2000	1.2000	1.2000	-1.639%	3	1,328	-90.833%
2026-04-08	1.2200	1.2200	1.2200	1.2200	-9.630%	1	1,328	-90.984%
2026-04-07	1.3500	1.3500	1.3500	1.3500	0.000%	2	1,329	-91.852%
2026-04-01	1.4200	1.4200	1.3500	1.3500	-8.784%	8	1,329	-91.852%
2026-03-31	1.4500	1.4800	1.4500	1.4800	-4.516%	8	1,335	-92.568%
2026-03-30	1.5500	1.5500	1.5500	1.5500	-6.627%	1	1,339	-92.903%
2026-03-18	1.6600	1.6600	1.6600	1.6600	+2.469%	18	1,338	-93.373%
2026-03-12	1.6200	1.6200	1.6200	1.6200	-37.692%	16	1,356	-93.210%
2026-03-06	2.6000	2.6000	2.6000	2.6000	+98.473%	2	1,366	-95.769%
2026-03-02	1.3100	1.3100	1.3100	1.3100	+10.084%	3	1,368	-91.603%
2026-02-27	1.1600	1.4700	1.1600	1.1900	-7.031%	15	1,365	-90.756%
2026-02-26	1.5200	1.5200	1.0000	1.2800	+6.667%	11	1,373	-91.406%
2026-02-24	1.2000	1.2000	1.1900	1.2000	-7.692%	36	1,373	-90.833%
2026-02-11	1.3000	1.3000	1.3000	1.3000	-3.704%	1	1,356	-91.538%
2026-02-09	1.3500	1.3500	1.3500	1.3500	+2.273%	4	1,356	-91.852%
2026-02-05	1.3200	1.3200	1.3200	1.3200	+10.000%	2	1,357	-91.667%
2026-02-03	1.2000	1.2000	1.2000	1.2000	-14.286%	1	1,357	-90.833%
2026-02-02	1.4000	1.4000	1.4000	1.4000	-10.828%	2	1,358	-92.143%
2026-01-30	1.5700	1.5700	1.5000	1.5700	+2.614%	39	1,359	-92.994%
2026-01-27	1.5700	1.5700	1.5200	1.5300	-3.165%	47	1,359	-92.810%
2026-01-26	1.5800	1.5800	1.5800	1.5800	+12.857%	3	1,312	-93.038%
2026-01-15	1.5500	1.5500	1.4000	1.4000	-15.152%	9	1,309	-92.143%
2026-01-14	1.6500	1.6500	1.6500	1.6500	0.000%	3	1,314	-93.333%
2026-01-13	1.6800	1.6800	1.6500	1.6500	-4.070%	3	1,311	-93.333%
2026-01-12	1.6000	1.7200	1.6000	1.7200	+3.614%	21	1,308	-93.605%
2026-01-09	1.5500	1.6600	1.5100	1.6600	-2.924%	13	1,314	-93.373%
2026-01-07	1.5500	1.7100	1.5500	1.7100	-3.390%	106	1,315	-93.567%
2026-01-06	1.7000	1.7700	1.7000	1.7700	-5.348%	11	1,317	-93.785%
2026-01-02	1.9000	1.9000	1.8500	1.8700	-3.109%	22	1,318	-94.118%
2025-12-31	1.9600	1.9600	1.9300	1.9300	+4.324%	3	1,313	-94.301%
2025-12-29	1.8500	1.8500	1.8500	1.8500	-6.091%	1	1,313	-94.054%
2025-12-26	1.9700	1.9700	1.9700	1.9700	-1.500%	6	1,313	-94.416%
2025-12-24	2.0000	2.0000	2.0000	2.0000	-9.910%	1	1,312	-94.500%
2025-12-19	2.3500	2.3500	2.2200	2.2200	-14.615%	5	1,312	-95.045%
2025-12-17	2.6200	2.6200	2.6000	2.6000	+6.122%	5	1,311	-95.769%
2025-12-15	2.4900	2.5200	2.4500	2.4500	-5.039%	23	1,307	-95.510%
2025-12-12	2.5800	2.5800	2.5800	2.5800	-6.859%	1	1,286	-95.736%
2025-12-11	2.7700	2.7700	2.7700	2.7700	-3.484%	1	1,285	-96.029%
2025-12-10	2.8700	2.8700	2.8700	2.8700	+0.350%	5	1,285	-96.167%
2025-12-09	2.8600	2.8600	2.8600	2.8600	+8.745%	1	1,284	-96.154%
2025-12-08	2.6300	2.6300	2.6300	2.6300	+2.335%	1	1,283	-95.817%
2025-12-05	2.5700	2.5700	2.5700	2.5700	+5.761%	2	1,282	-95.720%
2025-12-04	2.4300	2.4300	2.4300	2.4300	+3.404%	1	1,280	-95.473%
2025-12-03	2.3300	2.3500	2.3300	2.3500	-0.424%	7	1,280	-95.319%
2025-11-26	2.3600	2.3600	2.3600	2.3600	-8.171%	1	1,279	-95.339%
2025-11-25	2.5000	2.5700	2.5000	2.5700	-6.545%	4	1,279	-95.720%
2025-11-24	2.6000	2.8400	2.6000	2.7500	-7.718%	14	1,282	-96.000%
2025-11-21	3.5000	3.5000	2.9800	2.9800	-16.056%	4	1,276	-96.309%
2025-11-19	3.4000	3.5500	3.4000	3.5500	+5.970%	7	1,275	-96.901%
2025-11-18	3.5200	3.5200	3.2000	3.3500	-10.188%	15	1,270	-96.716%
2025-11-17	3.5500	3.7500	3.5500	3.7300	+1.084%	32	1,256	-97.051%
2025-11-14	3.6900	3.6900	3.6900	3.6900	-7.750%	2	1,235	-97.019%
2025-11-12	4.1500	4.3000	3.9500	4.0000	-6.977%	84	1,235	-97.250%
2025-11-11	4.6500	4.6500	4.2500	4.3000	-22.383%	28	1,163	-97.442%
2025-11-05	5.5400	5.5400	5.5400	5.5400	+5.524%	2	1,137	-98.014%
2025-11-04	5.7500	5.7500	5.2500	5.2500	-11.017%	301	1,133	-97.905%
2025-11-03	5.7900	6.0000	5.7700	5.9000	+7.078%	28	873	-98.136%
2025-10-31	5.5000	5.5100	5.5000	5.5100	+9.109%	3	873	-98.004%
2025-10-30	5.0500	5.0500	5.0500	5.0500	0.000%	4	870	-97.822%
2025-10-27	4.8100	5.0500	4.8100	5.0500	+2.020%	2	875	-97.822%
2025-10-22	4.9500	4.9500	4.9500	4.9500	-4.808%	1	875	-97.778%
2025-10-20	5.3000	5.3000	5.2000	5.2000	-8.772%	2	876	-97.885%
2025-10-14	5.7000	5.7000	5.7000	5.7000	+11.765%	3	876	-98.070%
2025-10-07	5.0000	5.1000	4.9500	5.1000	+16.972%	18	877	-97.843%
2025-10-06	4.3600	4.3600	4.3600	4.3600	-3.111%	1	877	-97.477%
2025-10-03	4.5000	4.5000	4.5000	4.5000	-2.386%	1	877	-97.556%
2025-10-01	4.6100	4.6100	4.6100	4.6100	-40.130%	3	876	-97.614%
2025-09-29	7.7000	7.7000	7.7000	7.7000	0.000%	1	873	-98.571%
2025-09-26	7.7800	7.7800	7.7000	7.7000	+10.791%	5	872	-98.571%
2025-09-22	6.8000	6.9500	6.8000	6.9500	+0.725%	2	872	-98.417%
2025-09-15	6.8700	6.9000	6.8700	6.9000	+8.661%	9	871	-98.406%
2025-09-08	6.3500	6.3500	6.3500	6.3500	+2.419%	1	862	-98.268%
2025-09-05	6.2000	6.2000	6.2000	6.2000	-2.821%	4	861	-98.226%
2025-08-28	6.3800	6.3800	6.3800	6.3800	+8.136%	1	865	-98.276%
2025-08-25	5.8000	5.9000	5.8000	5.9000	+9.259%	5	864	-98.136%
2025-08-22	5.4000	5.4000	5.4000	5.4000	-7.692%	2	860	-97.963%
2025-08-19	6.2000	6.2000	5.8500	5.8500	-19.310%	7	860	-98.120%
2025-08-08	7.2500	7.2500	7.2500	7.2500	-7.643%	4	865	-98.483%
2025-08-06	7.8500	7.8500	7.8500	7.8500	-3.681%	1	861	-98.599%
2025-08-01	8.0000	8.1500	8.0000	8.1500	+3.822%	2	860	-98.650%
2025-07-29	7.8500	7.8500	7.8500	7.8500	+20.769%	1	862	-98.599%
2025-07-28	6.7000	6.7000	6.5000	6.5000	+0.309%	2	861	-98.308%
2025-07-25	6.6000	6.6000	6.4800	6.4800	-3.571%	5	863	-98.302%
2025-07-24	6.7200	6.7200	6.7200	6.7200	-10.993%	1	868	-98.363%
2025-07-22	7.6900	7.6900	7.5500	7.5500	-10.119%	14	869	-98.543%
2025-07-21	8.4000	8.4000	8.4000	8.4000	+3.067%	1	859	-98.690%
2025-07-18	8.0500	8.1500	8.0500	8.1500	+16.429%	5	858	-98.650%
2025-07-15	7.0000	7.0000	7.0000	7.0000	-1.408%	1	861	-98.429%
2025-07-11	7.1000	7.1000	7.1000	7.1000	+4.258%	1	860	-98.451%
2025-07-10	6.8100	6.8100	6.8100	6.8100	-3.814%	1	861	-98.385%
2025-07-09	7.0800	7.0800	7.0800	7.0800	-15.412%	1	860	-98.446%
2025-07-07	8.2000	8.3700	8.2000	8.3700	+2.699%	20	861	-98.686%
2025-07-02	8.1500	8.1500	8.1500	8.1500	-15.369%	1	877	-98.650%
2025-06-17	9.0000	9.6300	9.0000	9.6300	+8.202%	2	876	-98.858%
2025-06-16	8.9000	8.9000	8.9000	8.9000	-15.640%	1	874	-98.764%
2025-06-05	10.5500	10.5500	10.5500	10.5500	-5.381%	11	873	-98.957%
2025-06-03	11.4000	11.4000	11.0000	11.1500	-3.043%	23	862	-99.013%
2025-06-02	11.5000	11.5000	11.5000	11.5000	+7.477%	4	839	-99.043%
2025-05-21	10.7000	10.7000	10.7000	10.7000	+8.961%	1	835	-98.972%
2025-05-12	9.8200	9.8200	9.8200	9.8200	-6.029%	2	834	-98.880%
2025-05-08	10.7000	10.7000	10.4500	10.4500	+24.851%	6	837	-98.947%
2025-04-29	8.1700	8.3700	8.1700	8.3700	-23.140%	3	832	-98.686%
2025-04-24	10.8900	10.8900	10.8900	10.8900	-4.053%	1	831	-98.990%
2025-04-21	11.2000	11.3500	11.2000	11.3500	+1.794%	9	830	-99.031%
2025-04-11	11.1500	11.1500	11.1500	11.1500	+25.000%	14	830	-99.013%
2025-04-07	8.9200	8.9200	8.9200	8.9200	+4.327%	1	830	-98.767%
2025-04-04	8.5500	8.5500	8.5500	8.5500	+32.558%	2	829	-98.713%
2025-04-02	6.4800	6.4800	6.4000	6.4500	+6.612%	4	828	-98.295%
2025-04-01	6.0500	6.0500	6.0500	6.0500	+5.585%	2	829	-98.182%
2025-03-31	5.5600	5.7300	5.5600	5.7300	+17.178%	2	827	-98.080%
2025-03-25	4.7200	4.8900	4.7200	4.8900	+9.641%	2	827	-97.751%
2025-03-18	4.6000	4.6000	4.4600	4.4600	-5.308%	6	827	-97.534%
2025-03-14	4.5100	4.7100	4.5100	4.7100	+3.516%	4	823	-97.665%
2025-03-07	4.5500	4.5500	4.5500	4.5500	-19.039%	2	823	-97.582%
2025-02-27	5.4300	5.6200	5.4300	5.6200	+2.930%	2	822	-98.043%
2025-02-25	5.4100	5.5300	5.4100	5.4600	+0.924%	4	818	-97.985%
2025-02-24	5.1900	5.4100	5.1900	5.4100	-6.076%	2	818	-97.967%
2025-02-21	6.2500	6.2500	5.7600	5.7600	-16.522%	10	818	-98.090%
2025-02-19	6.9000	6.9000	6.9000	6.9000	-3.497%	5	823	-98.406%
2025-02-14	7.0000	7.1500	7.0000	7.1500	+10.000%	30	803	-98.462%
2025-02-13	6.5000	6.5000	6.5000	6.5000	+26.706%	8	795	-98.308%
2025-02-12	5.1300	5.1300	5.1300	5.1300	-10.783%	12	795	-97.856%
2025-02-10	5.7500	5.7500	5.7500	5.7500	+4.736%	700	783	-98.087%
2025-02-06	5.4900	5.4900	5.4900	5.4900	+4.571%	2	83	-97.996%
2025-02-04	5.3000	5.3000	5.0000	5.2500	+44.231%	13	81	-97.905%
2025-02-03	3.5000	3.6400	3.5000	3.6400	-4.961%	2	69	-96.978%
2025-01-29	3.6400	3.8300	3.6400	3.8300	-2.792%	2	69	-97.128%
2025-01-24	3.8300	3.9400	3.8300	3.9400	+17.262%	4	69	-97.208%
2025-01-16	3.2000	3.3600	3.2000	3.3600	-12.727%	2	69	-96.726%
2024-11-21	3.8500	3.8500	3.8500	3.8500	+6.944%	37	32	-97.143%
2024-11-12	3.6000	3.6000	3.6000	3.6000	+30.909%	5	32	-96.944%
2024-10-15	2.7500	2.7500	2.7500	2.7500	-6.780%	1	27	-96.000%
2024-10-07	2.9500	2.9500	2.9500	2.9500	+28.821%	10	27	-96.271%
2024-09-20	2.2900	2.2900	2.2900	2.2900	-0.866%	10	17	-95.197%
2024-09-19	2.2900	2.3100	2.2900	2.3100	+1.762%	4	12	-95.238%
2024-08-28	2.2700	2.2700	2.2700	2.2700	-4.219%	2	8	-95.154%
2024-08-01	2.3700	2.3700	2.3700	2.3700	+12.857%	1	6	-95.359%
2024-07-31	2.1000	2.1000	2.1000	2.1000	0.000%	1	5	-94.762%
2024-07-30	2.0500	2.1500	2.0500	2.1000	+31.250%	4	4	-94.762%
2024-06-05	1.6000	1.6000	1.6000	1.6000	-8.571%	5	5	-93.125%
2024-05-28	1.7500	1.7500	1.7500	1.7500	0.000%	5	5	-93.714%