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ISRG20261218P420
ISRG Dec 18 2026 420.00 Put (ISRG261218P00420000)
option OPRA

EOD

Sep 28, 2026

30.20-20.735%(-7.90)26

Date (EDT)	Open	High	Low	Close	Change	Volume	Open Interest	Change Since
2026-09-28	31.0000	31.6000	30.2000	30.2000	-20.735%	26	142	0.000%
2026-09-24	38.1000	38.1000	38.1000	38.1000	-1.677%	1	121	-20.735%
2026-09-21	38.7500	38.7500	38.7500	38.7500	-28.637%	1	121	-22.065%
2026-09-15	54.1000	54.3000	54.1000	54.3000	-11.173%	2	120	-44.383%
2026-09-11	61.7000	61.7000	61.1300	61.1300	-12.296%	2	120	-50.597%
2026-09-10	69.7000	69.7000	69.7000	69.7000	+22.388%	1	122	-56.671%
2026-08-31	56.9500	56.9500	56.9500	56.9500	-4.766%	1	121	-46.971%
2026-08-26	59.8000	59.8000	59.8000	59.8000	+12.618%	1	120	-49.498%
2026-08-21	52.9500	53.1000	52.9500	53.1000	+27.338%	5	121	-43.126%
2026-08-13	41.7000	41.7000	41.7000	41.7000	-6.711%	2	119	-27.578%
2026-08-11	44.7000	44.7000	44.7000	44.7000	-14.499%	1	120	-32.438%
2026-08-10	52.2800	52.2800	52.2800	52.2800	-9.550%	1	121	-42.234%
2026-08-07	57.8000	57.8000	57.8000	57.8000	-4.463%	1	120	-47.751%
2026-08-06	60.5000	60.5000	60.5000	60.5000	+0.166%	1	121	-50.083%
2026-08-05	60.4000	60.4000	60.4000	60.4000	-11.722%	1	121	-50.000%
2026-08-03	68.4200	68.4200	68.4200	68.4200	+6.573%	4	120	-55.861%
2026-07-28	64.2000	64.2000	64.2000	64.2000	-11.995%	1	116	-52.960%
2026-07-27	74.7000	74.7000	72.9500	72.9500	-13.186%	9	116	-58.602%
2026-07-22	82.8000	84.0400	82.8000	84.0300	+14.795%	4	115	-64.060%
2026-07-21	73.4000	73.4000	73.1000	73.2000	-5.194%	19	117	-58.743%
2026-07-17	73.9500	77.2100	73.9500	77.2100	+55.196%	4	132	-60.886%
2026-07-16	49.7500	49.7500	49.7500	49.7500	-18.201%	1	133	-39.296%
2026-07-14	60.8200	60.8200	60.8200	60.8200	+53.975%	1	133	-50.345%
2026-07-07	39.4000	39.5000	39.4000	39.5000	-15.957%	2	132	-23.544%
2026-06-18	47.5000	47.5000	47.0000	47.0000	+12.845%	5	129	-35.745%
2026-06-16	41.6500	41.6500	41.6500	41.6500	-4.691%	1	129	-27.491%
2026-06-15	43.6000	43.7000	43.6000	43.7000	-9.430%	2	129	-30.892%
2026-06-12	48.2500	48.2500	48.2500	48.2500	+13.717%	1	127	-37.409%
2026-06-08	42.4300	42.4300	42.4300	42.4300	-18.247%	1	127	-28.824%
2026-06-03	51.9000	51.9000	51.9000	51.9000	+15.333%	1	126	-41.811%
2026-06-01	45.0000	45.0000	45.0000	45.0000	+5.882%	5	125	-32.889%
2026-05-29	42.5000	42.5000	42.5000	42.5000	-0.932%	2	120	-28.941%
2026-05-28	42.9000	42.9000	42.9000	42.9000	-6.941%	1	120	-29.604%
2026-05-27	39.5000	46.1000	39.5000	46.1000	+31.714%	6	120	-34.490%
2026-05-22	34.9000	35.0000	34.9000	35.0000	+2.041%	12	120	-13.714%
2026-05-21	34.5000	34.5000	34.0000	34.3000	-13.165%	7	105	-11.953%
2026-05-15	38.8000	39.5000	38.8000	39.5000	+2.597%	9	105	-23.544%
2026-05-14	37.5100	39.8000	37.3400	38.5000	-9.412%	5	103	-21.558%
2026-05-11	35.8300	42.5000	35.8300	42.5000	+43.581%	7	103	-28.941%
2026-05-08	29.5000	29.6000	29.5000	29.6000	+10.861%	4	97	+2.027%
2026-05-07	26.7000	26.7000	26.7000	26.7000	-11.000%	1	97	+13.109%
2026-04-29	30.0000	30.0000	30.0000	30.0000	+7.143%	1	96	+0.667%
2026-04-17	28.0000	28.0000	28.0000	28.0000	-7.895%	1	96	+7.857%
2026-04-16	31.6000	31.6000	30.2400	30.4000	+7.878%	4	95	-0.658%
2026-04-14	28.1800	28.1800	28.1800	28.1800	-14.735%	1	94	+7.168%
2026-04-09	33.0500	33.0500	33.0500	33.0500	+10.167%	1	95	-8.623%
2026-04-08	30.0000	30.0000	30.0000	30.0000	-14.773%	1	95	+0.667%
2026-04-07	35.2000	35.2000	35.2000	35.2000	+12.460%	1	95	-14.205%
2026-04-01	31.3000	31.3000	31.3000	31.3000	+3.987%	1	95	-3.514%
2026-03-26	30.1000	30.1000	30.1000	30.1000	-3.215%	1	95	+0.332%
2026-03-25	31.1000	31.1000	31.1000	31.1000	+1.270%	2	95	-2.894%
2026-03-24	30.6000	30.7100	30.6000	30.7100	+12.162%	2	95	-1.661%
2026-03-17	27.5500	27.5500	27.0000	27.3800	-0.797%	12	95	+10.299%
2026-03-16	27.6000	27.6000	27.6000	27.6000	-10.535%	2	93	+9.420%
2026-03-13	30.8000	30.8500	30.8000	30.8500	+10.336%	4	91	-2.107%
2026-03-11	28.0000	28.0000	27.9600	27.9600	+27.091%	2	91	+8.011%
2026-02-26	21.6000	22.0000	21.6000	22.0000	-11.290%	3	91	+37.273%
2026-02-24	24.9000	24.9000	24.8000	24.8000	+4.202%	42	91	+21.774%
2026-02-11	23.8000	23.8000	23.8000	23.8000	-18.213%	4	59	+26.891%
2026-02-05	29.1000	29.1000	29.1000	29.1000	+28.137%	1	59	+3.780%
2026-02-02	22.7100	22.7100	22.7100	22.7100	+1.293%	1	59	+32.981%
2026-01-30	22.5000	22.5000	22.3000	22.4200	+1.448%	10	59	+34.701%
2026-01-29	21.9000	22.2000	21.9000	22.1000	+4.245%	20	52	+36.652%
2026-01-20	20.0000	21.2000	20.0000	21.2000	+17.778%	2	36	+42.453%
2026-01-16	18.0000	18.0000	18.0000	18.0000	+17.955%	1	35	+67.778%
2026-01-13	15.2600	15.2600	15.2600	15.2600	-15.222%	1	35	+97.903%
2025-12-15	18.6000	18.6000	18.0000	18.0000	+4.712%	3	34	+67.778%
2025-12-08	17.5500	17.5500	17.1900	17.1900	+3.554%	2	34	+75.684%
2025-12-05	16.6000	16.6000	16.6000	16.6000	-6.742%	1	33	+81.928%
2025-11-20	17.8000	17.8000	17.8000	17.8000	-0.280%	1	33	+69.663%
2025-11-10	17.5000	17.8500	17.5000	17.8500	-17.742%	2	34	+69.188%
2025-11-03	21.7000	21.7000	21.7000	21.7000	+5.854%	1	33	+39.171%
2025-10-23	21.1000	21.1000	20.5000	20.5000	-3.529%	9	33	+47.317%
2025-10-22	21.2500	21.2500	21.2500	21.2500	-48.107%	2	25	+42.118%
2025-10-21	40.9500	40.9500	40.9500	40.9500	-17.556%	2	25	-26.252%
2025-10-14	49.9000	50.2000	48.4000	49.6700	+9.938%	13	25	-39.199%
2025-10-08	45.1800	45.1800	45.1800	45.1800	-4.280%	1	14	-33.156%
2025-10-07	46.5000	47.2000	46.5000	47.2000	+7.763%	2	13	-36.017%
2025-10-03	44.5500	44.5500	43.8000	43.8000	-5.051%	2	13	-31.050%
2025-09-29	46.5500	46.5500	46.1300	46.1300	+1.563%	2	13	-34.533%
2025-09-22	45.4200	45.4200	45.4200	45.4200	-4.076%	1	14	-33.509%
2025-09-15	47.3500	47.3500	47.3500	47.3500	+17.000%	1	13	-36.220%
2025-09-11	40.4700	40.4700	40.4700	40.4700	+20.018%	1	13	-25.377%
2025-08-29	33.7200	33.7200	33.7200	33.7200	-1.691%	1	13	-10.439%
2025-08-26	35.3000	35.3000	33.8000	34.3000	+1.932%	3	13	-11.953%
2025-08-12	33.6500	33.6500	33.6500	33.6500	-7.044%	10	12	-10.253%
2025-08-11	35.3000	36.2000	35.3000	36.2000	+1.914%	4	12	-16.575%
2025-08-08	36.8900	36.8900	35.5200	35.5200	+28.696%	6	11	-14.977%
2025-06-02	27.6000	27.6000	27.6000	27.6000	-19.085%	2	8	+9.420%
2025-05-06	34.1100	34.1100	34.1100	34.1100	+5.669%	1	8	-11.463%
2025-05-05	32.2800	32.2800	32.2800	32.2800	-15.718%	1	9	-6.444%
2025-04-02	38.3000	38.3000	38.3000	38.3000	-10.930%	1	8	-21.149%
2025-03-13	43.0000	43.0000	43.0000	43.0000	+21.127%	1	8	-29.767%
2024-11-04	35.5000	35.5000	35.5000	35.5000	+9.568%	6	8	-14.930%
2024-10-29	32.4000	32.4000	32.4000	32.4000	-6.628%	7	8	-6.790%
2024-10-23	34.7000	34.7000	34.7000	34.7000	-13.682%	6	7	-12.968%
2024-08-23	40.6300	40.6300	40.2000	40.2000	-20.757%	4	1	-24.876%
2024-08-08	50.7300	50.7300	50.7300	50.7300	-12.970%	1	1	-40.469%
2024-08-05	58.2900	58.2900	58.2900	58.2900	+16.069%	1	1	-48.190%
2024-06-28	50.2200	50.2200	50.2200	50.2200	0.000%	2	1	-39.865%