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ISRG20261218P400
ISRG Dec 18 2026 400.00 Put (ISRG261218P00400000)
option OPRA

EOD

Sep 28, 2026

21.00-18.950%(-4.91)13

Date (EDT)	Open	High	Low	Close	Change	Volume	Open Interest	Change Since
2026-09-28	23.3000	23.3000	20.5500	21.0000	-18.950%	13	331	0.000%
2026-09-25	28.3000	30.0000	25.9100	25.9100	-3.321%	55	336	-18.950%
2026-09-24	27.0300	27.0300	25.0000	26.8000	+1.515%	30	351	-21.642%
2026-09-23	26.4000	26.4000	26.4000	26.4000	-5.036%	3	332	-20.455%
2026-09-22	27.2900	27.8000	26.4000	27.8000	+5.503%	20	332	-24.460%
2026-09-21	30.9000	30.9000	26.3500	26.3500	-17.398%	34	321	-20.304%
2026-09-18	32.4000	32.4000	31.9000	31.9000	-11.463%	3	302	-34.169%
2026-09-16	35.5600	36.0300	35.5600	36.0300	-11.256%	4	302	-41.715%
2026-09-15	40.6000	40.6000	40.3000	40.6000	-27.110%	11	301	-48.276%
2026-09-08	55.7000	55.7000	55.7000	55.7000	+23.230%	1	297	-62.298%
2026-08-25	45.2000	45.2000	45.2000	45.2000	+14.141%	1	296	-53.540%
2026-08-21	42.0000	42.0000	39.6000	39.6000	+6.166%	9	296	-46.970%
2026-08-20	37.3000	37.3000	37.3000	37.3000	+11.012%	3	301	-43.700%
2026-08-17	33.6000	33.6000	33.6000	33.6000	+9.984%	1	301	-37.500%
2026-08-14	30.5700	30.5700	30.5500	30.5500	-2.396%	2	301	-31.260%
2026-08-13	31.3000	31.3000	31.3000	31.3000	+4.333%	1	303	-32.907%
2026-08-12	30.0000	30.0000	30.0000	30.0000	-7.034%	1	302	-30.000%
2026-08-11	34.0000	34.0400	31.7500	32.2700	-12.547%	8	301	-34.924%
2026-08-10	40.3000	40.3000	36.9000	36.9000	-39.508%	5	298	-43.089%
2026-07-31	61.0000	61.0000	61.0000	61.0000	+11.172%	1	301	-65.574%
2026-07-28	53.4000	54.8700	53.4000	54.8700	-21.726%	5	300	-61.728%
2026-07-24	70.1000	70.1000	70.1000	70.1000	+2.336%	1	296	-70.043%
2026-07-22	67.2700	68.5000	67.2700	68.5000	+16.102%	2	295	-69.343%
2026-07-21	57.3000	59.0000	57.3000	59.0000	-5.297%	12	294	-64.407%
2026-07-20	66.4500	66.4500	61.5000	62.3000	+2.467%	12	294	-66.292%
2026-07-17	53.5000	62.1000	53.5000	60.8000	+51.621%	10	301	-65.461%
2026-07-16	40.0000	40.1000	40.0000	40.1000	-7.561%	2	301	-47.631%
2026-07-15	43.9500	44.0000	43.3800	43.3800	-9.813%	6	301	-51.591%
2026-07-14	48.0000	48.1000	48.0000	48.1000	+36.803%	2	300	-56.341%
2026-07-13	35.1600	35.1600	35.1600	35.1600	-6.240%	110	301	-40.273%
2026-07-10	37.0000	37.5000	37.0000	37.5000	+33.452%	6	241	-44.000%
2026-07-07	25.8600	28.1000	25.8600	28.1000	+4.074%	2	242	-25.267%
2026-07-06	27.0000	27.0000	27.0000	27.0000	-29.319%	1	243	-22.222%
2026-07-01	37.9500	38.4000	37.9500	38.2000	+2.523%	8	244	-45.026%
2026-06-24	36.9500	37.2600	36.9500	37.2600	-2.461%	3	242	-43.639%
2026-06-22	38.2000	38.2000	38.2000	38.2000	+1.812%	1	241	-45.026%
2026-06-18	37.5200	37.5200	37.5200	37.5200	+12.335%	1	240	-44.030%
2026-06-17	33.4000	33.4000	33.4000	33.4000	-10.957%	1	240	-37.126%
2026-06-12	37.4800	37.5100	37.4800	37.5100	+5.573%	6	240	-44.015%
2026-06-10	35.0600	35.5300	35.0600	35.5300	+12.829%	3	237	-40.895%
2026-06-05	32.7000	32.7000	31.4900	31.4900	-12.162%	2	238	-33.312%
2026-06-04	35.8500	35.8500	35.8500	35.8500	-13.196%	4	240	-41.423%
2026-06-03	41.9000	41.9000	41.3000	41.3000	-2.133%	6	244	-49.153%
2026-06-02	41.0500	42.3000	40.6900	42.2000	+23.032%	9	240	-50.237%
2026-06-01	34.3100	34.3100	34.3000	34.3000	+3.344%	3	237	-38.776%
2026-05-29	33.1900	33.1900	33.1900	33.1900	-0.925%	1	236	-36.728%
2026-05-28	34.0600	34.0600	33.5000	33.5000	-6.425%	3	235	-37.313%
2026-05-27	30.0000	35.8000	30.0000	35.8000	+35.606%	163	235	-41.341%
2026-05-21	27.5000	27.7000	26.0500	26.4000	+2.326%	17	150	-20.455%
2026-05-20	25.8000	25.8000	25.8000	25.8000	0.000%	2	150	-18.605%
2026-05-19	25.8000	25.8000	25.8000	25.8000	-15.686%	1	151	-18.605%
2026-05-15	30.5000	31.8100	30.5000	30.6000	+2.000%	5	151	-31.373%
2026-05-12	30.0000	30.0000	30.0000	30.0000	-9.774%	2	148	-30.000%
2026-05-11	26.0000	33.2500	25.4000	33.2500	+46.347%	12	148	-36.842%
2026-05-08	21.9000	22.9000	21.9000	22.7200	+3.273%	5	146	-7.570%
2026-05-06	22.0000	22.0000	22.0000	22.0000	-7.173%	1	144	-4.545%
2026-05-05	22.6000	23.7000	22.6000	23.7000	+7.874%	2	143	-11.392%
2026-05-04	21.9700	21.9700	21.9700	21.9700	-2.356%	1	143	-4.415%
2026-04-29	22.0000	22.9000	22.0000	22.5000	+31.965%	3	142	-6.667%
2026-04-24	17.0500	17.0500	17.0500	17.0500	-4.213%	1	140	+23.167%
2026-04-22	17.0000	17.8000	17.0000	17.8000	-28.514%	2	141	+17.978%
2026-04-21	22.4000	25.0100	22.4000	24.9000	+15.814%	3	141	-15.663%
2026-04-20	21.6000	21.8000	21.4000	21.5000	-9.359%	32	141	-2.326%
2026-04-16	23.7200	23.7200	23.7200	23.7200	+8.957%	1	138	-11.467%
2026-04-14	21.7700	21.7700	21.7700	21.7700	-18.464%	1	138	-3.537%
2026-04-13	26.7000	26.7000	26.7000	26.7000	-0.633%	3	138	-21.348%
2026-04-10	26.4000	26.8700	26.4000	26.8700	+3.745%	8	138	-21.846%
2026-04-09	26.2900	26.2900	25.9000	25.9000	-8.481%	4	138	-18.919%
2026-04-07	28.3000	28.3000	28.3000	28.3000	+1.434%	1	138	-25.795%
2026-04-06	27.9000	27.9000	27.9000	27.9000	+7.020%	1	137	-24.731%
2026-04-02	26.0700	26.0700	26.0700	26.0700	-1.808%	1	136	-19.448%
2026-03-31	27.7700	27.7700	26.5500	26.5500	-8.448%	2	136	-20.904%
2026-03-30	29.0000	29.0000	29.0000	29.0000	+13.281%	1	136	-27.586%
2026-03-26	24.3000	25.6000	24.3000	25.6000	+2.400%	5	136	-17.969%
2026-03-24	25.0000	25.0000	25.0000	25.0000	+15.207%	3	132	-16.000%
2026-03-23	21.9000	21.9000	21.7000	21.7000	-8.051%	5	132	-3.226%
2026-03-20	23.6000	23.6000	23.6000	23.6000	+5.925%	1	127	-11.017%
2026-03-17	22.2800	22.2800	22.2800	22.2800	-21.934%	2	126	-5.745%
2026-03-13	23.4000	28.5400	23.4000	28.5400	+24.087%	7	127	-26.419%
2026-03-12	20.9000	23.9800	20.9000	23.0000	+9.524%	5	121	-8.696%
2026-03-11	21.5000	21.5000	21.0000	21.0000	-7.489%	2	118	0.000%
2026-03-06	22.0000	22.7000	22.0000	22.7000	+16.113%	7	117	-7.489%
2026-03-04	19.5500	19.5500	19.5500	19.5500	-2.250%	1	110	+7.417%
2026-03-02	20.0000	20.0000	20.0000	20.0000	+7.643%	2	109	+5.000%
2026-02-27	18.5000	18.5800	18.5000	18.5800	+9.811%	2	107	+13.025%
2026-02-26	17.2000	17.7800	16.9200	16.9200	-10.712%	122	107	+24.113%
2026-02-24	18.9500	18.9500	18.9500	18.9500	-9.762%	1	64	+10.818%
2026-02-12	21.0000	21.0000	21.0000	21.0000	-7.080%	1	63	0.000%
2026-02-05	22.7000	22.7000	22.6000	22.6000	+1.345%	2	62	-7.080%
2026-02-03	22.3000	22.3000	22.3000	22.3000	+23.204%	3	63	-5.830%
2026-02-02	18.1000	18.1000	18.1000	18.1000	+23.129%	1	60	+16.022%
2026-01-27	14.7000	14.7000	14.7000	14.7000	-10.366%	1	59	+42.857%
2026-01-21	16.4000	16.4000	16.4000	16.4000	+25.574%	1	58	+28.049%
2026-01-15	13.0600	13.0600	13.0600	13.0600	+5.323%	1	57	+60.796%
2026-01-13	12.4000	12.4000	12.4000	12.4000	+2.479%	1	57	+69.355%
2026-01-12	12.1000	12.1000	12.1000	12.1000	+14.151%	1	56	+73.554%
2026-01-09	11.0000	11.0000	10.6000	10.6000	-10.169%	17	55	+98.113%
2026-01-06	11.8000	11.8000	11.8000	11.8000	-5.600%	1	45	+77.966%
2025-12-31	12.5000	12.5000	12.5000	12.5000	+5.307%	1	46	+68.000%
2025-12-29	11.8700	11.8700	11.8700	11.8700	-9.112%	4	46	+76.917%
2025-12-19	13.0600	13.0600	13.0600	13.0600	-6.043%	5	46	+60.796%
2025-12-18	13.9000	13.9000	13.9000	13.9000	-3.472%	2	43	+51.079%
2025-12-16	14.4000	14.4000	14.4000	14.4000	-7.455%	5	42	+45.833%
2025-11-19	15.9300	16.0200	15.5600	15.5600	-2.138%	10	45	+34.961%
2025-11-17	15.8000	15.9000	15.8000	15.9000	-2.871%	2	47	+32.075%
2025-10-28	16.3700	16.3700	16.3700	16.3700	-3.365%	1	48	+28.283%
2025-10-22	19.6700	19.6700	16.9400	16.9400	-49.281%	5	49	+23.967%
2025-10-21	33.2000	33.5000	32.9000	33.4000	-17.531%	8	52	-37.126%
2025-10-14	40.5000	40.5000	40.5000	40.5000	-1.651%	1	47	-48.148%
2025-10-10	41.0500	41.1800	41.0500	41.1800	+12.115%	2	47	-49.004%
2025-10-09	36.7300	36.7300	36.7300	36.7300	-5.481%	1	49	-42.826%
2025-10-07	38.0500	38.8600	38.0500	38.8600	+8.852%	5	45	-45.960%
2025-10-03	35.7000	35.7000	35.7000	35.7000	-6.053%	8	45	-41.176%
2025-09-29	38.0000	38.0000	38.0000	38.0000	+0.529%	1	40	-44.737%
2025-09-26	37.8000	37.8000	37.8000	37.8000	-3.077%	1	39	-44.444%
2025-09-25	39.0000	39.0000	39.0000	39.0000	-2.500%	2	38	-46.154%
2025-09-17	40.0000	40.0000	40.0000	40.0000	+2.171%	1	36	-47.500%
2025-09-15	37.5000	39.1500	37.5000	39.1500	+18.385%	12	35	-46.360%
2025-09-11	33.0700	33.0700	33.0700	33.0700	-3.866%	1	35	-36.498%
2025-09-10	34.4000	34.4000	34.4000	34.4000	+9.554%	1	34	-38.953%
2025-09-05	31.4000	31.4000	31.4000	31.4000	-6.269%	3	33	-33.121%
2025-09-04	33.5000	33.5000	33.5000	33.5000	+21.377%	10	31	-37.313%
2025-08-04	27.6000	27.6000	27.6000	27.6000	+26.027%	25	30	-23.913%
2025-06-27	21.9000	21.9000	21.9000	21.9000	-22.806%	1	14	-4.110%
2025-05-07	28.3700	28.4100	28.3700	28.3700	+2.976%	5	14	-25.978%
2025-05-05	27.5500	27.5500	27.5000	27.5500	-24.479%	5	18	-23.775%
2025-04-24	36.4800	36.4800	36.4800	36.4800	+1.333%	4	13	-42.434%
2025-04-23	36.0000	36.0000	36.0000	36.0000	-23.502%	2	9	-41.667%
2025-04-09	47.0600	47.0600	47.0600	47.0600	-6.218%	1	9	-55.376%
2025-04-07	50.1800	50.1800	50.1800	50.1800	+0.561%	1	9	-58.151%
2025-04-04	49.9000	49.9000	49.9000	49.9000	+49.222%	4	9	-57.916%
2025-03-20	33.4400	33.4400	33.4400	33.4400	+78.824%	1	9	-37.201%
2025-02-05	18.7000	18.7000	18.7000	18.7000	+0.054%	1	8	+12.299%
2025-02-04	18.6900	18.6900	18.6900	18.6900	-13.070%	1	9	+12.360%
2025-01-27	21.5000	21.5000	21.5000	21.5000	+13.757%	1	10	-2.326%
2025-01-24	18.9000	18.9000	18.9000	18.9000	+1.613%	2	11	+11.111%
2025-01-21	18.6000	18.6000	18.6000	18.6000	-15.068%	2	11	+12.903%
2025-01-15	21.4100	21.9000	21.4100	21.9000	-23.400%	2	13	-4.110%
2024-10-28	28.5900	28.5900	28.5900	28.5900	-3.737%	2	13	-26.548%
2024-10-23	29.7000	29.7000	29.7000	29.7000	-16.362%	1	11	-29.293%
2024-10-16	35.5100	35.5100	35.5100	35.5100	+0.509%	2	12	-40.862%
2024-10-09	35.3300	35.3300	35.3300	35.3300	-4.255%	1	10	-40.560%
2024-09-17	36.9000	36.9000	36.9000	36.9000	-1.600%	1	9	-43.089%
2024-09-04	37.5000	37.5000	37.5000	37.5000	+5.634%	1	8	-44.000%
2024-09-03	35.5000	35.5000	35.5000	35.5000	+1.429%	3	8	-40.845%
2024-08-21	35.0000	35.0000	35.0000	35.0000	-15.663%	8	8	-40.000%
2024-08-09	41.5000	41.5000	41.5000	41.5000	-1.891%	2	3	-49.398%
2024-06-28	42.3000	42.3000	42.3000	42.3000	+0.714%	2	2	-50.355%
2024-06-27	42.0000	42.0000	42.0000	42.0000	0.000%	1	1	-50.000%