Research Frontiers Incorporated (REFR)

NASDAQ: REFR · Real-Time Price · USD

0.6200

-0.0020 (-0.32%)

At close: Jun 25, 2026, 4:00 PM EDT

0.6249

+0.0049 (0.79%)

After-hours: Jun 25, 2026, 5:38 PM EDT

Research Frontiers Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jun 25, 2026	0.60	0.65	0.55	0.62	0.62	-0.32%	73,562
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	-	10,396
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%	65,341
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
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