Research Frontiers Incorporated (REFR) NASDAQ

Currency In USD

REFR Historical Return

If you invested $1000 in Research Frontiers Incorporated (REFR) 10 years ago, it would be worth $124.28 as of September 12, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $175.23, while $1000 invested 1 year ago would be worth $311.2. This corresponds to total returns of -87.57%, -82.48%, -68.88%, respectively, with annualized returns of -18.81%, -29.41%, -68.88%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

REFR Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
September 11, 2026	0.38	0.39	0.39	0.42	0.37	51,952
September 10, 2026	0.39	0.39	0.39	0.4	0.39	95,234
September 09, 2026	0.39	0.39	0.39	0.4	0.38	60,134
September 08, 2026	0.41	0.39	0.39	0.42	0.37	242,531
September 04, 2026	0.41	0.41	0.41	0.43	0.4	142,693
September 03, 2026	0.4	0.41	0.41	0.43	0.4	0
September 02, 2026	0.45	0.4	0.4	0.46	0.4	101,949
September 01, 2026	0.47	0.44	0.44	0.47	0.43	391,925
August 31, 2026	0.47	0.47	0.47	0.47	0.45	61,352
August 28, 2026	0.49	0.46	0.46	0.49	0.45	150,891
August 27, 2026	0.52	0.49	0.49	0.53	0.48	342,914
August 26, 2026	0.48	0.48	0.48	0.5	0.46	101,259
August 25, 2026	0.49	0.48	0.48	0.51	0.46	0
August 24, 2026	0.44	0.47	0.47	0.49	0.43	0
August 21, 2026	0.46	0.45	0.45	0.47	0.43	65,717
August 20, 2026	0.46	0.45	0.45	0.49	0.44	128,650
August 19, 2026	0.42	0.44	0.44	0.46	0.4	0
August 18, 2026	0.44	0.42	0.42	0.45	0.42	35,374
August 17, 2026	0.43	0.43	0.43	0.48	0.42	64,771
August 14, 2026	0.45	0.44	0.44	0.45	0.43	13,466
August 13, 2026	0.48	0.43	0.43	0.48	0.43	0
August 12, 2026	0.49	0.48	0.48	0.49	0.47	0
August 11, 2026	0.5	0.49	0.49	0.51	0.49	40,082
August 10, 2026	0.49	0.49	0.49	0.5	0.47	161,757
August 07, 2026	0.5	0.49	0.49	0.5	0.47	0
August 06, 2026	0.46	0.47	0.47	0.5	0.45	230,081
August 05, 2026	0.47	0.47	0.47	0.49	0.45	18,774
August 04, 2026	0.47	0.47	0.47	0.49	0.46	62,492
August 03, 2026	0.41	0.45	0.45	0.53	0.41	232,190
July 31, 2026	0.39	0.4	0.4	0.45	0.38	78,596
July 30, 2026	0.36	0.39	0.39	0.42	0.36	80,230
July 29, 2026	0.44	0.39	0.39	0.46	0.35	118,280
July 28, 2026	0.41	0.44	0.44	0.48	0.41	97,189
July 27, 2026	0.49	0.46	0.46	0.49	0.45	28,773
July 23, 2026	0.48	0.48	0.48	0.54	0.45	97,667
July 22, 2026	0.51	0.49	0.49	0.52	0.48	33,477
July 21, 2026	0.58	0.51	0.51	0.58	0.51	22,650
July 20, 2026	0.56	0.51	0.51	0.56	0.46	47,202
July 17, 2026	0.54	0.55	0.55	0.55	0.48	119,302
July 16, 2026	0.53	0.53	0.53	0.6	0.53	22,118
July 15, 2026	0.6	0.55	0.55	0.6	0.54	45,933
July 14, 2026	0.56	0.55	0.55	0.6	0.54	32,299
July 13, 2026	0.53	0.54	0.54	0.59	0.53	25,066
July 10, 2026	0.55	0.55	0.55	0.59	0.53	58,346
July 09, 2026	0.53	0.53	0.53	0.53	0.5	119,278
July 08, 2026	0.53	0.54	0.54	0.55	0.53	25,883
July 07, 2026	0.55	0.54	0.54	0.56	0.53	30,389
July 06, 2026	0.57	0.54	0.54	0.57	0.52	50,478
July 02, 2026	0.54	0.55	0.55	0.55	0.54	54,506
July 01, 2026	0.52	0.53	0.53	0.59	0.5	86,122
June 30, 2026	0.55	0.52	0.52	0.59	0.52	170,984
June 29, 2026	0.54	0.55	0.55	0.55	0.51	109,887
June 26, 2026	0.59	0.48	0.48	0.59	0.48	134,326
June 25, 2026	0.6	0.62	0.62	0.65	0.55	73,545
June 24, 2026	0.65	0.62	0.62	0.65	0.59	45,926
June 23, 2026	0.62	0.61	0.61	0.63	0.61	10,396
June 22, 2026	0.6	0.61	0.61	0.63	0.6	41,771
June 18, 2026	0.64	0.6	0.6	0.66	0.6	65,341
June 17, 2026	0.68	0.64	0.64	0.7	0.64	15,851
June 16, 2026	0.64	0.67	0.67	0.71	0.64	90,304