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ISRG20261218P440
ISRG Dec 18 2026 440.00 Put (ISRG261218P00440000)
option OPRA

EOD

Sep 28, 2026

43.35-9.894%(-4.76)5

Date (EDT)	Open	High	Low	Close	Change	Volume	Open Interest	Change Since
2026-09-28	43.3500	43.3500	43.3500	43.3500	-9.894%	5	92	0.000%
2026-09-25	48.1100	48.1100	48.1100	48.1100	-8.011%	5	97	-9.894%
2026-09-23	52.3000	52.3000	52.3000	52.3000	+0.771%	1	93	-17.113%
2026-09-22	51.9000	51.9000	51.9000	51.9000	-2.973%	20	94	-16.474%
2026-08-19	53.4900	53.4900	53.4900	53.4900	-5.327%	9	94	-18.957%
2026-08-18	56.5000	56.5000	56.5000	56.5000	+0.839%	2	103	-23.274%
2026-08-11	56.0300	56.0300	56.0300	56.0300	-30.259%	1	105	-22.631%
2026-08-04	80.3400	80.3400	80.3400	80.3400	-10.525%	1	106	-46.042%
2026-07-29	89.7900	89.7900	89.7900	89.7900	+10.620%	1	106	-51.721%
2026-07-28	81.1700	81.1700	81.1700	81.1700	-22.474%	8	105	-46.594%
2026-07-24	104.7000	104.7000	104.7000	104.7000	-5.803%	3	109	-58.596%
2026-07-23	104.4500	111.3700	101.8600	111.1500	+18.245%	36	106	-60.999%
2026-07-20	94.0000	94.0000	94.0000	94.0000	+4.794%	10	120	-53.883%
2026-07-17	89.8000	89.8000	89.7000	89.7000	+22.207%	4	110	-51.672%
2026-07-14	73.7000	73.7000	73.4000	73.4000	+22.252%	7	110	-40.940%
2026-07-10	60.0400	60.0400	60.0400	60.0400	+14.166%	1	110	-27.798%
2026-07-08	52.5900	52.5900	52.5900	52.5900	+5.180%	1	109	-17.570%
2026-07-07	50.4000	50.4000	50.0000	50.0000	+10.156%	2	108	-13.300%
2026-07-06	45.3900	45.3900	45.3900	45.3900	-10.473%	1	108	-4.494%
2026-07-02	50.7000	50.7000	50.7000	50.7000	-6.630%	1	108	-14.497%
2026-06-15	53.9000	54.3000	53.9000	54.3000	+1.685%	3	108	-20.166%
2026-06-08	53.4000	53.4000	53.4000	53.4000	-1.657%	1	110	-18.820%
2026-06-04	54.3000	54.3000	54.3000	54.3000	-5.811%	4	111	-20.166%
2026-05-27	50.0000	57.6500	50.0000	57.6500	+31.922%	5	115	-24.805%
2026-05-21	44.4900	45.6000	43.7000	43.7000	+4.296%	10	112	-0.801%
2026-05-20	41.9000	41.9000	41.8000	41.9000	-19.268%	3	112	+3.461%
2026-05-15	51.7700	52.1000	51.7700	51.9000	+12.095%	3	104	-16.474%
2026-05-13	49.0000	49.0000	46.2000	46.3000	+0.282%	20	104	-6.371%
2026-05-11	45.0000	46.1700	45.0000	46.1700	+22.143%	6	87	-6.108%
2026-05-08	37.8000	37.8000	37.8000	37.8000	-4.545%	2	81	+14.683%
2026-05-05	40.4000	40.4000	39.6000	39.6000	+12.981%	4	81	+9.470%
2026-05-01	35.1800	35.1800	35.0000	35.0500	-7.275%	6	81	+23.680%
2026-04-29	35.8100	37.8000	35.8100	37.8000	+26.000%	2	81	+14.683%
2026-04-27	30.0000	30.0000	30.0000	30.0000	+7.914%	1	81	+44.500%
2026-04-22	27.8000	27.8000	27.8000	27.8000	-22.735%	4	80	+55.935%
2026-04-21	35.9800	35.9800	35.9800	35.9800	-13.634%	1	75	+20.484%
2026-04-10	41.5000	41.9000	41.5000	41.6600	-4.120%	39	76	+4.057%
2026-04-06	43.4500	43.4500	43.4500	43.4500	+11.410%	1	67	-0.230%
2026-04-01	39.3000	39.3000	38.6000	39.0000	-10.345%	11	68	+11.154%
2026-03-27	43.5000	43.5000	43.5000	43.5000	+15.079%	3	65	-0.345%
2026-03-20	36.9000	37.8000	36.6000	37.8000	+9.091%	29	68	+14.683%
2026-03-17	34.6500	34.6500	34.6500	34.6500	+25.817%	2	64	+25.108%
2026-02-26	27.4000	27.5400	27.4000	27.5400	-16.798%	2	66	+57.407%
2026-02-23	33.1000	33.1000	33.1000	33.1000	+14.138%	5	66	+30.967%
2026-02-10	29.0000	29.0000	29.0000	29.0000	-14.454%	3	66	+49.483%
2026-02-05	33.5000	33.9000	33.5000	33.9000	-8.625%	30	63	+27.876%
2026-02-04	37.1000	37.1000	37.1000	37.1000	+2.486%	1	34	+16.846%
2026-02-03	36.2000	36.2000	36.2000	36.2000	+35.581%	1	34	+19.751%
2026-01-29	26.7000	26.7000	26.7000	26.7000	+12.992%	2	34	+62.360%
2026-01-27	23.1000	23.6300	23.1000	23.6300	+2.294%	3	34	+83.453%
2026-01-26	23.1000	23.1000	23.1000	23.1000	-6.098%	4	35	+87.662%
2026-01-23	23.7000	24.6000	23.6000	24.6000	+1.653%	13	32	+76.220%
2026-01-22	24.3000	24.3000	23.6000	24.2000	-3.200%	3	33	+79.132%
2026-01-21	25.0000	25.0000	25.0000	25.0000	+2.041%	1	34	+73.400%
2025-12-12	24.5400	24.5400	24.5000	24.5000	+16.722%	2	34	+76.939%
2025-12-08	21.1300	21.6200	20.9900	20.9900	-13.621%	4	32	+106.527%
2025-11-17	24.2000	24.3000	24.2000	24.3000	-1.420%	2	30	+78.395%
2025-10-28	24.6500	24.6500	24.6500	24.6500	+0.612%	10	29	+75.862%
2025-10-24	24.5000	24.5000	24.5000	24.5000	-5.405%	8	20	+76.939%
2025-10-23	25.9000	25.9000	25.9000	25.9000	-54.957%	1	20	+67.375%
2025-10-17	57.5000	57.5000	57.5000	57.5000	-0.691%	1	21	-24.609%
2025-10-16	58.8000	58.9000	57.9000	57.9000	-3.371%	4	20	-25.130%
2025-10-14	59.9200	59.9200	59.9200	59.9200	+0.943%	1	16	-27.654%
2025-10-13	59.3300	59.3600	59.3300	59.3600	+13.110%	2	16	-26.971%
2025-10-09	53.1000	53.1000	52.4800	52.4800	-6.619%	2	18	-17.397%
2025-10-07	56.2000	56.2000	56.2000	56.2000	+6.844%	1	18	-22.865%
2025-10-06	52.6000	52.6000	52.6000	52.6000	-5.054%	1	18	-17.586%
2025-10-01	55.4000	55.4000	55.4000	55.4000	+30.969%	1	18	-21.751%
2025-08-26	42.2500	42.3000	42.2500	42.3000	+16.529%	2	16	+2.482%
2025-07-29	36.3000	36.3000	36.3000	36.3000	-5.222%	1	16	+19.421%
2025-07-23	38.3000	38.3000	38.3000	38.3000	-22.720%	1	17	+13.185%
2025-04-24	49.5600	49.5600	49.5600	49.5600	-20.641%	4	16	-12.530%
2025-04-04	62.4500	62.4500	62.4500	62.4500	+34.446%	2	16	-30.584%
2025-03-19	46.4500	46.4500	46.4500	46.4500	+61.678%	1	15	-6.674%
2025-02-26	28.7300	28.7300	28.7300	28.7300	-27.266%	1	15	+50.888%
2024-11-06	39.5000	39.5000	39.5000	39.5000	-2.948%	13	14	+9.747%
2024-11-04	40.7000	40.7000	40.7000	40.7000	+4.359%	8	14	+6.511%
2024-10-25	39.0000	39.0000	39.0000	39.0000	-25.000%	10	6	+11.154%
2024-09-06	52.0000	52.0000	52.0000	52.0000	0.000%	2	1	-16.635%