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MRK20260918P80
MRK Sep 18 2026 80.00 Put (MRK260918P00080000)
option OPRA

EOD

Jul 20, 2026

0.2000+122.222%(+0.1100)1

Date (EDT)	Open	High	Low	Close	Change	Volume	Open Interest	Change Since
2026-07-20	0.2000	0.2000	0.2000	0.2000	+122.222%	1	3,432	0.000%
2026-07-16	0.0900	0.0900	0.0900	0.0900	+50.000%	118	3,432	+122.222%
2026-07-14	0.0600	0.0600	0.0600	0.0600	+20.000%	10	3,550	+233.333%
2026-07-09	0.0400	0.0500	0.0400	0.0500	-50.000%	7	3,550	+300.000%
2026-07-08	0.1000	0.1000	0.1000	0.1000	+233.333%	2	3,557	+100.000%
2026-07-07	0.0300	0.0300	0.0300	0.0300	-50.000%	3	3,557	+566.667%
2026-07-06	0.0400	0.0600	0.0400	0.0600	+20.000%	5	3,560	+233.333%
2026-07-02	0.0500	0.0500	0.0500	0.0500	-16.667%	1	3,563	+300.000%
2026-07-01	0.0700	0.0700	0.0600	0.0600	-40.000%	4	3,563	+233.333%
2026-06-29	0.1000	0.1000	0.1000	0.1000	-50.000%	1	3,567	+100.000%
2026-06-24	0.2000	0.2000	0.2000	0.2000	+5.263%	1	3,567	0.000%
2026-06-22	0.2500	0.2500	0.1800	0.1900	-32.143%	6	3,567	+5.263%
2026-06-18	0.2700	0.2800	0.2600	0.2800	+12.000%	4	3,584	-28.571%
2026-06-17	0.3000	0.3000	0.2500	0.2500	-3.846%	2	3,584	-20.000%
2026-06-15	0.2400	0.2600	0.2200	0.2600	+13.043%	10	3,584	-23.077%
2026-06-11	0.2700	0.2700	0.2300	0.2300	-17.857%	15	3,584	-13.043%
2026-06-10	0.2700	0.3000	0.2700	0.2800	+3.704%	4	3,589	-28.571%
2026-06-09	0.3200	0.3200	0.2700	0.2700	-12.903%	3	3,593	-25.926%
2026-06-08	0.2700	0.3100	0.2400	0.3100	+14.815%	27	3,596	-35.484%
2026-06-05	0.2700	0.2700	0.2700	0.2700	+8.000%	2	3,607	-25.926%
2026-06-04	0.3000	0.3600	0.2500	0.2500	-32.432%	72	3,609	-20.000%
2026-06-03	0.3700	0.3700	0.3700	0.3700	-2.632%	2	3,678	-45.946%
2026-06-02	0.3900	0.3900	0.3800	0.3800	-2.564%	4	3,680	-47.368%
2026-06-01	0.3700	0.4100	0.3700	0.3900	+14.706%	7	3,684	-48.718%
2026-05-29	0.3400	0.3400	0.3400	0.3400	+6.250%	2	3,688	-41.176%
2026-05-28	0.3100	0.3200	0.3100	0.3200	0.000%	4	3,690	-37.500%
2026-05-27	0.3300	0.3300	0.3200	0.3200	+6.667%	3	3,694	-37.500%
2026-05-26	0.3200	0.5500	0.2900	0.3000	+11.111%	7	3,697	-33.333%
2026-05-22	0.3800	0.3800	0.2700	0.2700	-46.000%	8	3,701	-25.926%
2026-05-21	0.5100	0.5100	0.5000	0.5000	-1.961%	3	3,708	-60.000%
2026-05-20	0.4800	0.5100	0.4400	0.5100	0.000%	4	3,708	-60.784%
2026-05-19	0.4800	0.5200	0.4800	0.5100	-7.273%	9	3,722	-60.784%
2026-05-18	0.5600	0.5600	0.5500	0.5500	-6.780%	3	3,722	-63.636%
2026-05-15	0.5700	0.5900	0.5700	0.5900	+5.357%	3	3,722	-66.102%
2026-05-14	0.6000	0.6000	0.5600	0.5600	-6.667%	4	3,728	-64.286%
2026-05-13	0.6400	0.6700	0.6000	0.6000	+3.448%	5	3,737	-66.667%
2026-05-11	0.5800	0.5800	0.5800	0.5800	-4.918%	1	3,737	-65.517%
2026-05-08	0.6100	0.6100	0.6100	0.6100	-8.955%	2	3,737	-67.213%
2026-05-07	0.6400	0.6700	0.6400	0.6700	+4.688%	4	3,739	-70.149%
2026-05-06	0.6100	0.6400	0.5900	0.6400	-3.030%	73	3,743	-68.750%
2026-05-05	0.6600	0.6600	0.6200	0.6600	-1.493%	5	3,746	-69.697%
2026-05-04	0.7500	0.7500	0.6200	0.6700	-16.250%	12	3,750	-70.149%
2026-05-01	0.7300	0.8000	0.6700	0.8000	-31.034%	46	3,757	-75.000%
2026-04-29	1.1600	1.1600	1.1600	1.1600	+7.407%	500	3,757	-82.759%
2026-04-27	1.0800	1.0800	1.0800	1.0800	+44.000%	15	3,757	-81.481%
2026-04-20	0.7500	0.7500	0.7500	0.7500	-17.582%	6	3,772	-73.333%
2026-04-16	0.9100	0.9100	0.9100	0.9100	+5.814%	1	3,772	-78.022%
2026-04-15	0.8600	0.8600	0.8600	0.8600	-4.444%	1	3,772	-76.744%
2026-04-13	0.8100	0.9000	0.8100	0.9000	+15.385%	8	3,771	-77.778%
2026-04-10	0.9800	0.9800	0.7800	0.7800	-16.129%	13	3,771	-74.359%
2026-04-08	0.9300	0.9300	0.9300	0.9300	-11.429%	1	3,779	-78.495%
2026-04-07	1.2100	1.2100	1.0500	1.0500	+5.000%	2	3,779	-80.952%
2026-04-06	1.0000	1.0000	1.0000	1.0000	-7.407%	16	3,779	-80.000%
2026-04-02	1.0800	1.0800	1.0800	1.0800	-6.087%	1	3,779	-81.481%
2026-03-31	1.1500	1.1500	1.1500	1.1500	-10.853%	36	3,779	-82.609%
2026-03-30	1.1400	1.2900	1.1400	1.2900	-4.444%	10	3,743	-84.496%
2026-03-24	1.3500	1.4200	1.3400	1.3500	+8.000%	403	3,745	-85.185%
2026-03-23	1.2600	1.2600	1.1700	1.2500	-16.667%	4	3,902	-84.000%
2026-03-19	1.5000	1.5000	1.4900	1.5000	+2.740%	136	3,898	-86.667%
2026-03-13	1.5100	1.5200	1.4600	1.4600	+14.063%	12	3,767	-86.301%
2026-03-12	1.2900	1.3100	1.2800	1.2800	-16.883%	6	3,762	-84.375%
2026-03-06	1.5800	1.5800	1.5400	1.5400	+22.222%	4	3,762	-87.013%
2026-03-03	1.2200	1.2600	1.2200	1.2600	+31.250%	2	3,765	-84.127%
2026-02-27	0.9500	0.9600	0.9500	0.9600	0.000%	6	3,763	-79.167%
2026-02-25	0.9500	0.9600	0.9500	0.9600	-15.044%	18	3,766	-79.167%
2026-02-20	1.1300	1.1300	1.1300	1.1300	+5.607%	161	3,766	-82.301%
2026-02-18	1.0700	1.0700	1.0700	1.0700	-6.140%	1	3,605	-81.308%
2026-02-11	1.3800	1.3800	1.1400	1.1400	+28.090%	2	3,604	-82.456%
2026-02-06	0.9200	0.9300	0.8900	0.8900	-8.247%	11	3,604	-77.528%
2026-02-04	0.9500	0.9700	0.9200	0.9700	-28.676%	28	3,613	-79.381%
2026-02-03	1.3600	1.3600	1.3600	1.3600	-11.688%	1	3,615	-85.294%
2026-01-30	1.5000	1.5400	1.5000	1.5400	-2.532%	98	3,615	-87.013%
2026-01-29	1.6300	1.6300	1.5800	1.5800	-4.819%	21	3,517	-87.342%
2026-01-28	1.6000	1.6600	1.5500	1.6600	+10.667%	51	3,496	-87.952%
2026-01-27	1.5000	1.5000	1.5000	1.5000	-5.660%	5	3,489	-86.667%
2026-01-23	1.5900	1.5900	1.5900	1.5900	-0.625%	48	3,489	-87.421%
2026-01-20	1.6000	1.6000	1.6000	1.6000	+3.896%	2	3,441	-87.500%
2026-01-16	1.5400	1.5400	1.5400	1.5400	+20.313%	45	3,396	-87.013%
2026-01-15	1.2800	1.2800	1.2800	1.2800	-8.571%	5	3,396	-84.375%
2026-01-14	1.4000	1.4000	1.4000	1.4000	-14.110%	11	3,396	-85.714%
2026-01-12	1.5000	1.6300	1.5000	1.6300	+3.822%	6	3,396	-87.730%
2026-01-09	1.3600	1.5700	1.3600	1.5700	+12.143%	50	3,391	-87.261%
2026-01-08	1.4000	1.4000	1.4000	1.4000	-9.091%	10	3,361	-85.714%
2026-01-07	1.6600	1.6600	1.5400	1.5400	-2.532%	14	3,361	-87.013%
2026-01-06	1.5000	1.6600	1.5000	1.5800	-14.595%	56	3,349	-87.342%
2025-12-30	1.8500	1.8500	1.8500	1.8500	-1.596%	4	3,349	-89.189%
2025-12-26	1.8800	1.8800	1.8800	1.8800	-6.931%	1	3,349	-89.362%
2025-12-24	2.0200	2.0200	2.0200	2.0200	-6.047%	2	3,349	-90.099%
2025-12-22	2.1500	2.1500	2.1500	2.1500	-4.444%	20	3,349	-90.698%
2025-12-19	2.2400	2.2500	2.2400	2.2500	-16.357%	5	3,349	-91.111%
2025-12-17	2.6900	2.6900	2.6900	2.6900	+3.861%	1	3,352	-92.565%
2025-12-16	2.9800	3.0500	2.5900	2.5900	0.000%	37	3,353	-92.278%
2025-12-15	2.5900	2.5900	2.5900	2.5900	-17.778%	1	3,353	-92.278%
2025-12-10	3.2000	3.2000	3.1500	3.1500	+14.545%	2	3,353	-93.651%
2025-12-08	2.7500	2.7500	2.7500	2.7500	+13.636%	5	3,354	-92.727%
2025-12-05	2.4200	2.4200	2.4200	2.4200	+2.979%	1	3,354	-91.736%
2025-12-03	2.3500	2.3500	2.3500	2.3500	-0.424%	5	3,354	-91.489%
2025-11-26	2.4500	2.4500	2.3600	2.3600	-4.065%	4	3,353	-91.525%
2025-11-25	2.5400	2.5900	2.2700	2.4600	-10.870%	996	3,353	-91.870%
2025-11-24	2.7500	3.0000	2.7500	2.7600	-15.077%	672	2,818	-92.754%
2025-11-21	3.6000	3.6000	3.2500	3.2500	-14.248%	5	2,638	-93.846%
2025-11-20	4.0000	4.0500	3.7900	3.7900	-2.821%	5	2,634	-94.723%
2025-11-19	3.7000	3.9000	3.7000	3.9000	+9.244%	5	2,631	-94.872%
2025-11-18	4.2500	4.2500	3.5400	3.5700	-10.750%	183	2,629	-94.398%
2025-11-17	4.0000	4.0000	4.0000	4.0000	0.000%	1	2,776	-95.000%
2025-11-13	4.2600	4.2600	4.0000	4.0000	-11.700%	2	2,776	-95.000%
2025-11-12	4.5300	4.5300	4.5300	4.5300	-4.430%	40	2,776	-95.585%
2025-11-11	5.2000	5.2000	4.7400	4.7400	-18.276%	504	2,806	-95.781%
2025-11-10	5.8000	5.8000	5.8000	5.8000	-6.452%	2	2,807	-96.552%
2025-11-07	6.2000	6.2000	6.2000	6.2000	+0.324%	21	2,808	-96.774%
2025-11-06	6.3500	6.3500	6.1200	6.1800	-11.714%	13	2,818	-96.764%
2025-11-05	6.7500	7.2500	6.7500	7.0000	+4.478%	512	2,825	-97.143%
2025-11-04	6.7000	6.7000	6.7000	6.7000	+3.876%	2	2,893	-97.015%
2025-11-03	5.6500	6.4500	5.6500	6.4500	-5.977%	410	2,481	-96.899%
2025-10-30	6.8600	6.8600	6.8600	6.8600	+21.631%	1	2,481	-97.085%
2025-10-28	5.7000	5.7900	5.6000	5.6400	-1.053%	63	2,481	-96.454%
2025-10-24	5.7000	5.7000	5.7000	5.7000	-2.564%	1	2,513	-96.491%
2025-10-22	5.8500	5.8500	5.8500	5.8500	-4.723%	1,000	2,513	-96.581%
2025-10-21	5.9000	6.1400	5.9000	6.1400	+0.656%	21	1,513	-96.743%
2025-10-20	6.1500	6.1500	6.1000	6.1000	-15.278%	4	1,513	-96.721%
2025-10-17	7.2500	7.2500	7.2000	7.2000	+5.882%	7	1,513	-97.222%
2025-10-16	6.8000	6.8000	6.8000	6.8000	-2.857%	14	1,509	-97.059%
2025-10-15	6.9000	7.0000	6.9000	7.0000	+6.545%	9	1,495	-97.143%
2025-10-13	6.5700	6.5700	6.5700	6.5700	+9.500%	10	1,493	-96.956%
2025-10-09	6.0500	6.0500	6.0000	6.0000	+10.092%	3	1,499	-96.667%
2025-10-02	5.2500	5.5000	5.2500	5.4500	+10.324%	10	1,500	-96.330%
2025-10-01	5.7500	5.9000	4.9000	4.9400	-33.691%	58	1,501	-95.951%
2025-09-30	8.2000	8.3500	7.4500	7.4500	-18.132%	26	1,496	-97.315%
2025-09-29	9.0000	9.1000	9.0000	9.1000	-2.570%	3	1,489	-97.802%
2025-09-26	9.2200	9.3400	9.2200	9.3400	+0.430%	21	1,486	-97.859%
2025-09-25	8.8000	9.3500	8.8000	9.3000	+8.140%	40	1,506	-97.849%
2025-09-24	8.6000	8.6500	8.6000	8.6000	+1.176%	7	1,475	-97.674%
2025-09-23	8.2500	8.5000	8.2500	8.5000	+2.410%	6	1,472	-97.647%
2025-09-22	7.8500	8.3000	7.8000	8.3000	+6.410%	114	1,477	-97.590%
2025-09-19	7.8000	7.8000	7.8000	7.8000	-3.704%	3	1,476	-97.436%
2025-09-18	8.2000	8.2000	7.3500	8.1000	+2.532%	16	1,474	-97.531%
2025-09-17	7.9000	7.9000	7.9000	7.9000	-3.893%	2	1,481	-97.468%
2025-09-16	8.2000	8.4000	8.2000	8.2200	+2.112%	99	1,480	-97.567%
2025-09-15	7.8000	8.0500	7.8000	8.0500	+4.545%	3	1,395	-97.516%
2025-09-12	7.2500	7.7000	7.0900	7.7000	+11.594%	26	1,396	-97.403%
2025-09-11	7.0000	7.0000	6.9000	6.9000	-6.122%	7	1,404	-97.101%
2025-09-10	7.4000	7.4000	7.3500	7.3500	+1.100%	3	1,409	-97.279%
2025-09-09	7.2500	7.2700	7.1500	7.2700	-5.584%	6	1,408	-97.249%
2025-09-08	7.6000	7.7000	7.6000	7.7000	+4.054%	6	1,402	-97.403%
2025-09-05	7.3500	7.4000	7.3500	7.4000	-1.333%	3	1,399	-97.297%
2025-09-04	7.5000	7.5000	7.5000	7.5000	0.000%	1	1,397	-97.333%
2025-09-03	7.2500	7.5000	7.1000	7.5000	+3.448%	517	1,396	-97.333%
2025-09-02	7.2000	7.2500	7.1500	7.2500	-4.605%	5	951	-97.241%
2025-08-29	7.7000	7.7000	7.6000	7.6000	+15.152%	2	944	-97.368%
2025-08-28	7.7000	7.7000	6.5500	6.6000	-11.290%	12	944	-96.970%
2025-08-27	7.3000	7.4500	7.3000	7.4400	+5.532%	121	942	-97.312%
2025-08-26	7.0500	7.0500	7.0500	7.0500	+7.634%	2	827	-97.163%
2025-08-21	6.6500	6.6500	6.1300	6.5500	-5.755%	3	827	-96.947%
2025-08-20	6.9500	6.9500	6.9500	6.9500	-0.714%	3	826	-97.122%
2025-08-19	7.1000	7.1000	7.0000	7.0000	-4.110%	4	823	-97.143%
2025-08-18	7.3000	7.3000	7.3000	7.3000	-1.351%	3	822	-97.260%
2025-08-15	7.8000	7.8000	7.4000	7.4000	-8.075%	15	819	-97.297%
2025-08-14	8.0500	8.0500	8.0500	8.0500	-12.973%	2	805	-97.516%
2025-08-11	9.1000	9.2500	9.1000	9.2500	+3.933%	10	803	-97.838%
2025-08-08	8.9000	8.9000	8.9000	8.9000	-4.813%	37	795	-97.753%
2025-08-07	9.0200	9.3500	8.9300	9.3500	-1.579%	226	758	-97.861%
2025-08-06	9.1500	9.5000	9.0000	9.5000	+8.571%	11	535	-97.895%
2025-08-05	9.0000	9.0000	8.7500	8.7500	-5.914%	11	531	-97.714%
2025-08-04	9.4500	9.4500	9.3000	9.3000	+17.722%	2	522	-97.849%
2025-07-30	7.9000	7.9000	7.9000	7.9000	-4.819%	14	521	-97.468%
2025-07-29	8.7700	8.7700	8.3000	8.3000	+9.211%	16	507	-97.590%
2025-07-25	7.7000	7.7000	7.6000	7.6000	-6.748%	35	491	-97.368%
2025-07-23	8.1500	8.1500	8.1500	8.1500	-16.410%	1	491	-97.546%
2025-07-21	9.7500	9.7500	9.7500	9.7500	0.000%	1	491	-97.949%
2025-07-18	9.7000	9.7500	9.7000	9.7500	+10.795%	79	491	-97.949%
2025-07-17	8.7500	8.9000	8.7500	8.8000	-2.222%	20	412	-97.727%
2025-07-16	9.0000	9.0000	9.0000	9.0000	0.000%	20	393	-97.778%
2025-07-15	8.7000	9.0000	8.7000	9.0000	+4.046%	20	373	-97.778%
2025-07-11	8.4700	8.6500	8.4700	8.6500	+9.494%	137	355	-97.688%
2025-07-10	8.0500	8.0500	7.9000	7.9000	-6.949%	22	223	-97.468%
2025-07-09	8.4900	8.4900	8.4900	8.4900	-11.563%	20	223	-97.644%
2025-07-07	9.5500	9.6500	9.5000	9.6000	+1.053%	12	223	-97.917%
2025-07-03	9.5000	9.5000	9.5000	9.5000	+1.604%	1	223	-97.895%
2025-07-01	9.3700	9.6000	9.3500	9.3500	-11.792%	72	223	-97.861%
2025-06-30	10.5500	10.6000	10.5500	10.6000	+0.952%	2	166	-98.113%
2025-06-27	10.5000	10.5000	10.5000	10.5000	-0.850%	3	167	-98.095%
2025-06-26	10.5500	10.6000	10.5500	10.5900	-2.396%	172	170	-98.111%
2025-06-20	10.8500	10.8500	10.8500	10.8500	+4.327%	2	8	-98.157%
2025-06-16	10.3500	10.4000	10.3500	10.4000	0.000%	8	8	-98.077%