Research Frontiers Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jun 2, 2026	0.75	0.79	0.75	0.76	0.76	-1.67%	9,373
Jun 1, 2026	0.82	0.82	0.75	0.77	0.77	0.38%	18,801
May 29, 2026	0.77	0.77	0.76	0.77	0.77	1.32%	22,102
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%	10,106
May 26, 2026	0.74	0.79	0.73	0.76	0.76	1.35%	26,761
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%	16,947
May 18, 2026	0.79	0.80	0.78	0.79	0.79	-1.88%	11,977
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
May 6, 2026	0.99	0.99	0.88	0.88	0.88	0.69%	27,634
May 5, 2026	0.87	0.95	0.86	0.87	0.87	0.05%	28,593
May 4, 2026	0.88	0.94	0.83	0.87	0.87	-0.96%	95,564
May 1, 2026	0.92	0.92	0.87	0.88	0.88	-4.55%	58,389
Apr 30, 2026	0.95	0.96	0.91	0.92	0.92	-2.13%	67,088
Apr 29, 2026	0.93	0.95	0.93	0.94	0.94	0.31%	2,496
Apr 28, 2026	0.93	0.98	0.93	0.94	0.94	-1.37%	25,243
Apr 27, 2026	0.99	0.99	0.94	0.95	0.95	-1.04%	7,899
Apr 24, 2026	1.01	1.02	0.93	0.96	0.96	-3.96%	26,940
Apr 23, 2026	0.99	1.02	0.99	1.00	1.00	2.65%	10,856
Apr 22, 2026	0.97	1.02	0.97	0.97	0.97	-1.64%	6,618
Apr 21, 2026	1.00	1.02	0.98	0.99	0.99	-0.98%	37,680
Apr 20, 2026	0.93	1.00	0.93	1.00	1.00	7.49%	23,459
Apr 17, 2026	0.95	0.95	0.93	0.93	0.93	-0.66%	4,913
Apr 16, 2026	0.91	0.95	0.91	0.94	0.94	2.60%	17,265
Apr 15, 2026	1.01	1.01	0.91	0.91	0.91	-10.09%	40,358
Apr 14, 2026	0.91	1.02	0.91	1.02	1.02	9.15%	94,623
Apr 13, 2026	0.95	0.97	0.92	0.93	0.93	-3.13%	17,685
Apr 10, 2026	0.97	0.97	0.96	0.96	0.96	2.12%	4,644
Apr 9, 2026	0.93	0.97	0.91	0.94	0.94	2.01%	35,901
Apr 8, 2026	0.98	0.98	0.92	0.92	0.92	-0.91%	35,260
Apr 7, 2026	0.92	0.97	0.91	0.93	0.93	-0.79%	20,741
Apr 6, 2026	0.93	0.97	0.90	0.94	0.94	1.33%	6,200
Apr 2, 2026	0.93	0.93	0.90	0.93	0.93	-3.07%	2,450
Apr 1, 2026	0.94	0.97	0.94	0.95	0.95	3.74%	8,537
Mar 31, 2026	0.87	0.96	0.87	0.92	0.92	1.10%	16,817
Mar 30, 2026	0.89	0.94	0.88	0.91	0.91	2.10%	6,654
Mar 27, 2026	0.87	0.94	0.87	0.89	0.89	-1.13%	9,341
Mar 26, 2026	0.86	0.91	0.86	0.90	0.90	8.48%	31,698
Mar 25, 2026	0.87	0.97	0.82	0.83	0.83	-2.25%	91,904
Mar 24, 2026	0.86	0.90	0.85	0.85	0.85	-1.68%	20,468
Mar 23, 2026	0.86	0.90	0.86	0.86	0.86	8.08%	36,474