Dark

PFE20280121P18
PFE Jan 21 2028 18.00 Put (PFE280121P00018000)
option OPRA

EOD

Aug 19, 2026

0.3800-13.636%(-0.0600)8

Date (EDT)	Open	High	Low	Close	Change	Volume	Open Interest	Change Since
2026-08-19	0.3800	0.3800	0.3800	0.3800	-13.636%	8	6,138	0.000%
2026-08-18	0.4400	0.4400	0.4400	0.4400	-4.348%	20	6,138	-13.636%
2026-08-17	0.4500	0.4600	0.4500	0.4600	+9.524%	20	6,118	-17.391%
2026-08-10	0.4300	0.4300	0.4200	0.4200	-14.286%	5	6,138	-9.524%
2026-08-07	0.4800	0.4900	0.4800	0.4900	-12.500%	168	6,135	-22.449%
2026-08-04	0.5800	0.5800	0.5600	0.5600	-13.846%	60	6,102	-32.143%
2026-07-31	0.6500	0.6500	0.6500	0.6500	+6.557%	25	6,102	-41.538%
2026-07-29	0.6000	0.6100	0.6000	0.6100	-8.955%	11	6,102	-37.705%
2026-07-27	0.6700	0.6700	0.6700	0.6700	-8.219%	1	6,113	-43.284%
2026-07-20	0.7100	0.7300	0.7100	0.7300	+4.286%	11	6,114	-47.945%
2026-07-17	0.7000	0.7000	0.7000	0.7000	-2.778%	5	6,113	-45.714%
2026-07-15	0.7200	0.7200	0.7200	0.7200	-12.195%	1	6,108	-47.222%
2026-07-14	0.8000	0.8200	0.8000	0.8200	+9.333%	2	6,108	-53.659%
2026-07-10	0.7500	0.7500	0.7500	0.7500	-2.597%	1	6,106	-49.333%
2026-07-08	0.6500	0.7700	0.6500	0.7700	-7.229%	41	6,107	-50.649%
2026-07-07	0.8000	0.8600	0.8000	0.8300	-7.778%	39	6,108	-54.217%
2026-07-06	0.8500	0.9000	0.8100	0.9000	+16.883%	19	6,095	-57.778%
2026-07-02	0.7700	0.7900	0.7700	0.7700	-6.098%	13	6,085	-50.649%
2026-07-01	0.8000	0.8300	0.8000	0.8200	+1.235%	55	6,085	-53.659%
2026-06-30	0.8400	0.8900	0.8100	0.8100	+1.250%	22	6,047	-53.086%
2026-06-29	0.7800	0.8000	0.7800	0.8000	-6.977%	55	6,037	-52.500%
2026-06-26	0.8600	0.8600	0.8600	0.8600	-4.444%	43	5,992	-55.814%
2026-06-25	0.9200	0.9200	0.9000	0.9000	+5.882%	60	5,989	-57.778%
2026-06-24	0.7900	0.8800	0.7900	0.8500	+19.718%	56	5,999	-55.294%
2026-06-22	0.7100	0.7100	0.7100	0.7100	-5.333%	1	5,943	-46.479%
2026-06-18	0.7400	0.7500	0.7400	0.7500	+17.188%	30	5,910	-49.333%
2026-06-17	0.6800	0.6800	0.6400	0.6400	-3.030%	11	5,910	-40.625%
2026-06-12	0.6600	0.6600	0.6600	0.6600	-10.811%	10	5,910	-42.424%
2026-06-10	0.7400	0.7400	0.7400	0.7400	0.000%	2	5,910	-48.649%
2026-06-09	0.7400	0.7400	0.7400	0.7400	-1.333%	1	5,912	-48.649%
2026-06-05	0.7500	0.7500	0.7500	0.7500	+2.740%	3	5,913	-49.333%
2026-06-04	0.7800	0.7800	0.7300	0.7300	-8.750%	3	5,913	-47.945%
2026-06-02	0.8000	0.8000	0.8000	0.8000	+6.667%	1	5,910	-52.500%
2026-05-29	0.7500	0.7500	0.7500	0.7500	0.000%	1	5,909	-49.333%
2026-05-26	0.7900	0.7900	0.7500	0.7500	-1.316%	11	5,908	-49.333%
2026-05-19	0.7500	0.7600	0.7500	0.7600	-10.588%	5	5,897	-50.000%
2026-05-14	0.8400	0.8500	0.8400	0.8500	+6.250%	6	5,898	-55.294%
2026-05-13	0.8000	0.8000	0.8000	0.8000	0.000%	2	5,891	-52.500%
2026-05-08	0.7800	0.8000	0.7800	0.8000	-5.882%	9	5,891	-52.500%
2026-05-06	0.8500	0.8500	0.8500	0.8500	-3.409%	10	5,882	-55.294%
2026-05-05	0.8800	0.8800	0.8800	0.8800	+14.286%	5	5,882	-56.818%
2026-05-04	0.7800	0.7800	0.7700	0.7700	-12.500%	3	5,877	-50.649%
2026-05-01	0.8600	0.8800	0.8600	0.8800	+6.024%	10	5,868	-56.818%
2026-04-30	0.8700	0.8800	0.8200	0.8300	-7.778%	114	5,868	-54.217%
2026-04-29	0.9000	0.9000	0.9000	0.9000	-2.174%	19	5,757	-57.778%
2026-04-28	0.8500	0.9200	0.8500	0.9200	+10.843%	20	5,776	-58.696%
2026-04-27	0.8200	0.8300	0.8200	0.8300	-2.353%	10	5,756	-54.217%
2026-04-24	0.8500	0.8500	0.8500	0.8500	-2.299%	5	5,746	-55.294%
2026-04-23	0.8700	0.8700	0.8700	0.8700	+1.163%	2	5,741	-56.322%
2026-04-22	0.8100	0.8600	0.7900	0.8600	+6.173%	119	5,743	-55.814%
2026-04-20	0.8100	0.8100	0.8100	0.8100	+3.846%	3	5,666	-53.086%
2026-04-17	0.7800	0.7800	0.7800	0.7800	-4.878%	4	5,663	-51.282%
2026-04-15	0.8200	0.8200	0.8200	0.8200	-2.381%	2	5,667	-53.659%
2026-04-14	0.8400	0.8400	0.8400	0.8400	-6.667%	1	5,665	-54.762%
2026-04-10	0.8700	0.9000	0.8700	0.9000	0.000%	101	5,665	-57.778%
2026-04-08	0.9000	0.9000	0.9000	0.9000	-1.099%	5	5,565	-57.778%
2026-04-07	0.8600	0.9100	0.8500	0.9100	+12.346%	9	5,560	-58.242%
2026-04-06	0.7900	0.8100	0.7900	0.8100	0.000%	14	5,555	-53.086%
2026-04-02	0.7700	0.8100	0.7300	0.8100	-6.897%	26	5,536	-53.086%
2026-03-25	0.8700	0.8700	0.8700	0.8700	-7.447%	1	5,536	-56.322%
2026-03-23	0.8700	1.0100	0.8700	0.9400	+4.444%	377	5,536	-59.574%
2026-03-20	0.9000	0.9100	0.9000	0.9000	+5.882%	12	5,285	-57.778%
2026-03-19	0.8700	0.8700	0.8500	0.8500	0.000%	2,022	5,293	-55.294%
2026-03-18	0.9100	0.9100	0.8500	0.8500	-5.556%	3	4,230	-55.294%
2026-03-11	0.9000	0.9000	0.9000	0.9000	+2.273%	10	4,229	-57.778%
2026-03-10	0.9900	1.0000	0.8800	0.8800	-8.333%	14	4,219	-56.818%
2026-03-09	0.9800	0.9800	0.9600	0.9600	+11.628%	10	4,208	-60.417%
2026-03-05	0.8600	0.8600	0.8600	0.8600	-1.149%	500	4,216	-55.814%
2026-03-04	0.9000	0.9000	0.8700	0.8700	-1.136%	502	3,716	-56.322%
2026-03-03	0.8800	0.8800	0.8800	0.8800	+3.529%	2	3,385	-56.818%
2026-03-02	0.8500	0.8500	0.8500	0.8500	+10.390%	10	3,385	-55.294%
2026-02-27	0.8400	0.8400	0.7700	0.7700	-12.500%	13	3,385	-50.649%
2026-02-24	0.8500	0.8800	0.8500	0.8800	+7.317%	26	3,374	-56.818%
2026-02-23	0.8200	0.8200	0.8200	0.8200	-8.889%	1	3,374	-53.659%
2026-02-19	0.8700	0.9000	0.8700	0.9000	+11.111%	8	3,374	-57.778%
2026-02-17	0.8100	0.8100	0.8100	0.8100	+2.532%	1	3,374	-53.086%
2026-02-13	0.7900	0.7900	0.7900	0.7900	-5.952%	2	3,372	-51.899%
2026-02-12	0.8400	0.8400	0.8400	0.8400	+3.704%	4	3,372	-54.762%
2026-02-11	0.8100	0.8100	0.8100	0.8100	-3.571%	2	3,372	-53.086%
2026-02-04	0.8200	0.8400	0.8200	0.8400	-4.545%	2	3,373	-54.762%
2026-02-03	0.9300	0.9300	0.8800	0.8800	+2.326%	2	3,372	-56.818%
2026-02-02	0.7900	0.8600	0.7900	0.8600	-6.522%	17	3,372	-55.814%
2026-01-29	0.9200	0.9200	0.9200	0.9200	+2.222%	2	3,367	-58.696%
2026-01-28	0.7800	0.9000	0.7800	0.9000	+15.385%	22	3,367	-57.778%
2026-01-27	0.7900	0.8000	0.7800	0.7800	-4.878%	7	3,363	-51.282%
2026-01-26	0.8800	0.8800	0.8200	0.8200	-8.889%	35	3,363	-53.659%
2026-01-23	0.9600	0.9600	0.9000	0.9000	-3.226%	1,003	3,363	-57.778%
2026-01-22	0.9800	0.9800	0.9300	0.9300	-1.064%	26	2,377	-59.140%
2026-01-21	1.0300	1.0300	0.9400	0.9400	-8.738%	18	2,377	-59.574%
2026-01-20	1.0300	1.0500	1.0300	1.0300	-0.962%	45	2,377	-63.107%
2026-01-16	1.0400	1.0800	1.0400	1.0400	-5.455%	26	2,367	-63.462%
2026-01-14	1.1000	1.1000	1.1000	1.1000	+0.917%	5	2,367	-65.455%
2026-01-13	1.1000	1.1000	1.0600	1.0900	+1.869%	11	2,362	-65.138%
2026-01-12	1.0300	1.0700	1.0300	1.0700	-3.604%	13	2,359	-64.486%
2026-01-08	1.1100	1.1100	1.1100	1.1100	+2.778%	2	2,359	-65.766%
2026-01-07	1.0400	1.0800	1.0400	1.0800	+2.857%	52	2,359	-64.815%
2026-01-06	1.0200	1.1000	1.0200	1.0500	-7.080%	62	2,359	-63.810%
2026-01-05	1.0000	1.1300	1.0000	1.1300	-0.877%	74	2,359	-66.372%
2026-01-02	1.1000	1.1400	1.1000	1.1400	-1.724%	15	2,403	-66.667%
2025-12-31	1.1200	1.1600	1.1200	1.1600	+1.754%	11	2,403	-67.241%
2025-12-30	1.1300	1.1500	1.1300	1.1400	+1.786%	53	2,403	-66.667%
2025-12-29	1.1300	1.1300	1.1200	1.1200	-3.448%	37	2,453	-66.071%
2025-12-26	1.2000	1.2000	1.1600	1.1600	-3.333%	31	2,483	-67.241%
2025-12-24	1.2000	1.2000	1.2000	1.2000	0.000%	1	2,503	-68.333%
2025-12-23	1.1900	1.2000	1.0600	1.2000	+3.448%	61	2,503	-68.333%
2025-12-22	1.1800	1.1800	1.1300	1.1600	0.000%	85	2,463	-67.241%
2025-12-19	1.1600	1.1600	1.1600	1.1600	-3.333%	30	2,456	-67.241%
2025-12-18	1.2500	1.2500	1.2000	1.2000	0.000%	130	2,486	-68.333%
2025-12-17	1.2500	1.2500	1.2000	1.2000	0.000%	2	2,476	-68.333%
2025-12-16	1.1400	1.2000	1.1400	1.2000	+11.111%	10	2,476	-68.333%
2025-12-15	1.0800	1.0800	1.0800	1.0800	-4.425%	1	2,473	-64.815%
2025-12-12	1.1300	1.1300	1.1300	1.1300	-6.612%	1	2,473	-66.372%
2025-12-09	1.1500	1.2100	1.1000	1.2100	+3.419%	62	2,473	-68.595%
2025-12-08	1.1400	1.1700	1.1400	1.1700	+1.739%	6	2,423	-67.521%
2025-12-05	1.2300	1.2300	1.1500	1.1500	-5.738%	3	2,423	-66.957%
2025-12-02	1.2200	1.2200	1.2200	1.2200	0.000%	1	2,421	-68.852%
2025-12-01	1.2200	1.2200	1.2200	1.2200	+4.274%	1	2,421	-68.852%
2025-11-28	1.2100	1.2100	1.1600	1.1700	-2.500%	14	2,421	-67.521%
2025-11-26	1.2300	1.2300	1.2000	1.2000	-3.226%	6	2,419	-68.333%
2025-11-25	1.2400	1.2400	1.2400	1.2400	-4.615%	2	2,419	-69.355%
2025-11-24	1.2700	1.3000	1.2700	1.3000	-7.143%	4	2,419	-70.769%
2025-11-20	1.3900	1.4000	1.3900	1.4000	0.000%	5	2,419	-72.857%
2025-11-19	1.2700	1.4000	1.2700	1.4000	+6.870%	2,305	2,419	-72.857%
2025-11-18	1.3600	1.3600	1.3100	1.3100	+0.769%	2	444	-70.992%
2025-11-17	1.3000	1.3000	1.2700	1.3000	+1.563%	11	442	-70.769%
2025-11-14	1.2700	1.2900	1.2700	1.2800	+14.286%	5	437	-70.313%
2025-11-13	1.1900	1.1900	1.1200	1.1200	-8.197%	26	434	-66.071%
2025-11-11	1.2800	1.2800	1.2200	1.2200	-15.862%	65	435	-68.852%
2025-11-10	1.3900	1.4500	1.3000	1.4500	0.000%	111	431	-73.793%
2025-11-07	1.3600	1.4500	1.3600	1.4500	+7.407%	8	315	-73.793%
2025-11-06	1.3500	1.3500	1.3500	1.3500	-6.897%	1	307	-71.852%
2025-11-05	1.5000	1.5300	1.4500	1.4500	0.000%	34	306	-73.793%
2025-11-04	1.4000	1.4500	1.3900	1.4500	-0.685%	6	300	-73.793%
2025-11-03	1.4700	1.4900	1.4600	1.4600	-2.013%	12	290	-73.973%
2025-10-30	1.4600	1.4900	1.4600	1.4900	+2.055%	26	290	-74.497%
2025-10-29	1.5200	1.5200	1.4600	1.4600	-2.667%	26	289	-73.973%
2025-10-28	1.4000	1.5000	1.4000	1.5000	+4.895%	3	308	-74.667%
2025-10-27	1.4100	1.4300	1.4100	1.4300	-3.378%	2	307	-73.427%
2025-10-23	1.5000	1.5200	1.4500	1.4800	+0.680%	112	307	-74.324%
2025-10-22	1.5000	1.5000	1.4700	1.4700	+1.379%	3	196	-74.150%
2025-10-21	1.5000	1.5400	1.4500	1.4500	-5.844%	84	193	-73.793%
2025-10-20	2.0900	2.0900	1.5300	1.5400	-4.348%	21	185	-75.325%
2025-10-17	1.6800	1.7200	1.6100	1.6100	+2.548%	32	189	-76.398%
2025-10-16	1.6000	1.6000	1.5700	1.5700	-1.875%	2	158	-75.796%
2025-10-15	1.6000	1.6000	1.6000	1.6000	+2.564%	20	156	-76.250%
2025-10-14	1.5900	1.5900	1.5600	1.5600	+24.800%	31	156	-75.641%
2025-10-13	1.5900	1.5900	1.2500	1.2500	-19.355%	18	145	-69.600%
2025-10-10	1.5000	1.5500	1.5000	1.5500	+8.392%	25	127	-75.484%
2025-10-09	1.4300	1.4300	1.4300	1.4300	+5.926%	1	117	-73.427%
2025-10-07	1.3500	1.3500	1.3500	1.3500	+19.469%	1	116	-71.852%
2025-10-03	1.1500	1.1500	1.1300	1.1300	-1.739%	2	115	-66.372%
2025-10-02	1.5000	1.5000	1.1000	1.1500	-2.542%	30	113	-66.957%
2025-10-01	1.2000	1.2000	1.1800	1.1800	-11.940%	16	103	-67.797%
2025-09-30	1.3400	1.3400	1.3400	1.3400	-22.093%	30	103	-71.642%
2025-09-29	1.7200	1.7200	1.7200	1.7200	-1.714%	1	73	-77.907%
2025-09-25	1.6500	1.7500	1.6500	1.7500	+8.025%	6	72	-78.286%
2025-09-24	1.5300	1.6700	1.5300	1.6200	+4.516%	6	66	-76.543%
2025-09-23	1.5500	1.5500	1.5500	1.5500	+2.649%	2	60	-75.484%
2025-09-22	1.3700	1.5100	1.3700	1.5100	+11.029%	2	58	-74.834%
2025-09-19	1.4400	1.4700	1.3600	1.3600	-6.207%	4	58	-72.059%
2025-09-18	1.4300	1.4600	1.4300	1.4500	-3.333%	54	55	-73.793%
2025-09-17	1.5000	1.5000	1.5000	1.5000	0.000%	1	1	-74.667%