Research Frontiers Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jul 20, 2026	0.56	0.56	0.46	0.51	0.51	-6.04%	47,201
Jul 17, 2026	0.54	0.55	0.48	0.55	0.55	3.02%	119,302
Jul 16, 2026	0.53	0.60	0.53	0.53	0.53	-3.86%	21,310
Jul 15, 2026	0.54	0.58	0.54	0.55	0.55	-0.49%	45,936
Jul 14, 2026	0.56	0.60	0.54	0.55	0.55	1.74%	32,080
Jul 13, 2026	0.53	0.59	0.53	0.54	0.54	-1.14%	24,966
Jul 10, 2026	0.55	0.59	0.53	0.55	0.55	3.20%	58,346
Jul 9, 2026	0.53	0.53	0.50	0.53	0.53	-0.24%	117,778
Jul 8, 2026	0.53	0.55	0.53	0.54	0.54	-1.05%	25,691
Jul 7, 2026	0.55	0.56	0.53	0.54	0.54	-0.61%	30,389
Jul 6, 2026	0.57	0.57	0.52	0.54	0.54	-0.64%	50,481
Jul 2, 2026	0.58	0.58	0.50	0.55	0.55	3.26%	54,508
Jul 1, 2026	0.52	0.59	0.50	0.53	0.53	1.96%	84,796
Jun 30, 2026	0.55	0.59	0.52	0.52	0.52	-5.57%	171,383
Jun 29, 2026	0.54	0.55	0.51	0.55	0.55	14.85%	111,307
Jun 26, 2026	0.59	0.59	0.48	0.48	0.48	-22.66%	134,975
Jun 25, 2026	0.60	0.65	0.55	0.62	0.62	-0.32%	73,564
Jun 24, 2026	0.65	0.65	0.59	0.62	0.62	1.97%	46,243
Jun 23, 2026	0.62	0.63	0.61	0.61	0.61	-	10,496
Jun 22, 2026	0.60	0.63	0.60	0.61	0.61	1.67%	41,771
Jun 18, 2026	0.64	0.66	0.60	0.60	0.60	-6.40%	65,348
Jun 17, 2026	0.68	0.70	0.64	0.64	0.64	-4.23%	15,852
Jun 16, 2026	0.64	0.71	0.64	0.67	0.67	2.97%	90,305
Jun 15, 2026	0.70	0.75	0.65	0.65	0.65	-8.45%	67,671
Jun 12, 2026	0.75	0.75	0.71	0.71	0.71	-3.92%	26,586
Jun 11, 2026	0.75	0.75	0.72	0.74	0.74	1.22%	15,423
Jun 10, 2026	0.75	0.78	0.73	0.73	0.73	-0.14%	64,665
Jun 9, 2026	0.73	0.81	0.73	0.73	0.73	0.15%	41,380
Jun 8, 2026	0.74	0.76	0.72	0.73	0.73	-1.08%	24,613
Jun 5, 2026	0.75	0.77	0.72	0.74	0.74	-1.60%	30,444
Jun 4, 2026	0.77	0.78	0.75	0.75	0.75	-1.32%	13,702
Jun 3, 2026	0.75	0.79	0.75	0.76	0.76	-	12,263
Jun 2, 2026	0.75	0.79	0.75	0.76	0.76	-1.67%	9,526
Jun 1, 2026	0.82	0.82	0.75	0.77	0.77	0.38%	18,824
May 29, 2026	0.77	0.77	0.76	0.77	0.77	1.32%	22,104
May 28, 2026	0.75	0.77	0.74	0.76	0.76	1.37%	53,368
May 27, 2026	0.75	0.75	0.74	0.75	0.75	-1.37%	10,561
May 26, 2026	0.74	0.79	0.73	0.76	0.76	1.35%	26,763
May 22, 2026	0.76	0.76	0.74	0.75	0.75	1.34%	8,849
May 21, 2026	0.77	0.79	0.73	0.74	0.74	-1.32%	16,313
May 20, 2026	0.77	0.80	0.73	0.75	0.75	-2.60%	35,794
May 19, 2026	0.82	0.82	0.76	0.77	0.77	-1.91%	16,972
May 18, 2026	0.79	0.80	0.78	0.79	0.79	-1.88%	12,977
May 15, 2026	0.81	0.81	0.78	0.80	0.80	-1.11%	19,603
May 14, 2026	0.78	0.83	0.78	0.81	0.81	2.39%	15,796
May 13, 2026	0.81	0.86	0.79	0.79	0.79	1.86%	67,119
May 12, 2026	0.79	0.79	0.76	0.78	0.78	2.05%	27,600
May 11, 2026	0.90	0.90	0.76	0.76	0.76	0.78%	80,298
May 8, 2026	0.89	0.89	0.75	0.75	0.75	-9.48%	75,450
May 7, 2026	0.87	0.99	0.83	0.83	0.83	-4.89%	90,732