NASDAQ:REFR | Historical Stock Price | RESEARCH FRONTIERS INC

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1986-07-08 to 2026-09-03
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$0.47$1.11$2.63$6.25$14.85$35.311986-07-082026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2026

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-03$0.417
2026-09-02$0.44420
2026-09-01$0.44633
2026-08-31$0.46211
2026-08-28$0.46304
2026-08-27$0.49$0.49347,400$0.522,343
2026-08-26$0.48$0.48363,900$0.47661
2026-08-25$0.48$0.48182,100$0.48100
2026-08-24$0.47$0.4793,700$0.451,406
2026-08-21$0.45$0.4566,600$0.44126
2026-08-20$0.45$0.45128,700$0.47234
2026-08-19$0.44$0.44223,100$0.421,705
2026-08-18$0.42$0.4235,400$0.43200
2026-08-17$0.43$0.4364,800
2026-08-14$0.44$0.4411,600$0.451,119
2026-08-13$0.43$0.4378,500
2026-08-12$0.48$0.4850,800$0.48100
2026-08-11$0.49$0.4940,200$0.502,498
2026-08-10$0.49$0.49161,800$0.502,100
2026-08-07$0.49$0.4994,200
2026-08-06$0.47$0.47230,100$0.49729
2026-08-05$0.47$0.4718,800$0.461
2026-08-04$0.47$0.4762,500
2026-08-03$0.45$0.45233,500$0.46981
2026-07-31$0.40$0.4078,600
2026-07-30$0.39$0.3980,200$0.40255
2026-07-29$0.39$0.39118,300
2026-07-28$0.44$0.4497,600$0.41100
2026-07-27$0.46$0.4628,800
2026-07-24$0.46$0.4621,100$0.47300
2026-07-23$0.48$0.4897,700$0.46450
2026-07-22$0.49$0.4933,500$0.4812
2026-07-21$0.51$0.5122,700
2026-07-20$0.51$0.5147,200
2026-07-17$0.55$0.55119,300
2026-07-16$0.53$0.5322,100
2026-07-15$0.55$0.5545,900
2026-07-14$0.55$0.5532,300
2026-07-13$0.54$0.5425,100
2026-07-10$0.55$0.5558,300
2026-07-09$0.53$0.53119,300
2026-07-08$0.54$0.5425,700
2026-07-07$0.54$0.5430,400
2026-07-06$0.54$0.5450,500
2026-07-02$0.55$0.5554,600
2026-07-01$0.53$0.5386,100
2026-06-30$0.52$0.52171,400
2026-06-29$0.55$0.55111,200
2026-06-26$0.48$0.48135,000
2026-06-25$0.62$0.6273,600
2026-06-24$0.62$0.6246,200
2026-06-23$0.61$0.6110,400
2026-06-22$0.61$0.6141,800
2026-06-18$0.60$0.6065,300
2026-06-17$0.64$0.6415,900
2026-06-16$0.67$0.6790,300
2026-06-15$0.65$0.6567,700
2026-06-12$0.71$0.7124,600
2026-06-11$0.74$0.7415,400
2026-06-10$0.73$0.7364,700
2026-06-09$0.73$0.7341,400
2026-06-08$0.73$0.7324,600
2026-06-05$0.74$0.7430,400
2026-06-04$0.75$0.7513,700
2026-06-03$0.76$0.7612,300
2026-06-02$0.76$0.769,400
2026-06-01$0.77$0.7718,800
2026-05-29$0.77$0.7722,100
2026-05-28$0.76$0.7653,400
2026-05-27$0.75$0.7510,100
2026-05-26$0.76$0.7626,800
2026-05-22$0.75$0.758,800
2026-05-21$0.74$0.7416,300
2026-05-20$0.75$0.7535,800
2026-05-19$0.77$0.7716,900
2026-05-18$0.79$0.7913,000
2026-05-15$0.80$0.8019,600
2026-05-14$0.81$0.8115,800
2026-05-13$0.79$0.7967,000
2026-05-12$0.78$0.7827,600
2026-05-11$0.76$0.7680,300
2026-05-08$0.75$0.7575,500
2026-05-07$0.83$0.8390,700
2026-05-06$0.88$0.8827,500
2026-05-05$0.87$0.8728,600
2026-05-04$0.87$0.8795,500
2026-05-01$0.88$0.8858,400
2026-04-30$0.92$0.9267,100
2026-04-29$0.94$0.942,500
2026-04-28$0.94$0.9425,200
2026-04-27$0.95$0.957,900
2026-04-24$0.96$0.9626,900
2026-04-23$1.00$1.0010,900
2026-04-22$0.97$0.976,600
2026-04-21$0.99$0.9937,700
2026-04-20$1.00$1.0023,500
2026-04-17$0.93$0.934,900
2026-04-16$0.94$0.9417,300
2026-04-15$0.91$0.9140,000
2026-04-14$1.02$1.0294,600
2026-04-13$0.93$0.9317,700
2026-04-10$0.96$0.964,600
2026-04-09$0.94$0.9435,900
2026-04-08$0.92$0.9235,200
2026-04-07$0.93$0.9320,700
2026-04-06$0.94$0.946,200
2026-04-02$0.93$0.932,300
2026-04-01$0.95$0.958,500
2026-03-31$0.92$0.9216,800
2026-03-30$0.91$0.916,400
2026-03-27$0.89$0.899,300
2026-03-26$0.90$0.9031,700
2026-03-25$0.83$0.8391,900
2026-03-24$0.85$0.8520,500
2026-03-23$0.86$0.8636,500
2026-03-20$0.80$0.80172,700
2026-03-19$1.02$1.0213,800
2026-03-18$1.00$1.0022,300
2026-03-17$1.00$1.0010,300
2026-03-16$1.01$1.0130,600
2026-03-13$1.01$1.0130,000
2026-03-12$1.02$1.0227,900
2026-03-11$0.90$0.9025,700
2026-03-10$0.93$0.9340,100
2026-03-09$0.94$0.9420,800
2026-03-06$0.98$0.9848,000
2026-03-05$0.99$0.9941,000
2026-03-04$1.01$1.0113,100
2026-03-03$1.01$1.0123,100
2026-03-02$1.03$1.0320,500
2026-02-27$1.00$1.0087,300
2026-02-26$0.98$0.9876,000
2026-02-25$1.11$1.115,500
2026-02-24$1.10$1.1013,600
2026-02-23$1.11$1.1115,700
2026-02-20$1.11$1.1148,000
2026-02-19$1.03$1.0318,600
2026-02-18$1.01$1.0133,800
2026-02-17$1.02$1.028,200
2026-02-13$1.00$1.0072,500
2026-02-12$1.03$1.0333,900
2026-02-11$1.04$1.0446,400
2026-02-10$1.04$1.0414,400
2026-02-09$1.03$1.03134,300
2026-02-06$1.12$1.1226,500
2026-02-05$1.13$1.1330,800
2026-02-04$1.13$1.1318,000
2026-02-03$1.16$1.1625,800
2026-02-02$1.14$1.1450,200
2026-01-30$1.20$1.2083,000
2026-01-29$1.20$1.2074,800
2026-01-28$1.27$1.2717,500
2026-01-27$1.28$1.2846,500
2026-01-26$1.30$1.3064,800
2026-01-23$1.27$1.2729,600
2026-01-22$1.27$1.27111,200
2026-01-21$1.24$1.2470,000
2026-01-20$1.27$1.2741,200
2026-01-16$1.33$1.3343,000
2026-01-15$1.32$1.3219,300
2026-01-14$1.36$1.3621,400
2026-01-13$1.33$1.3314,600
2026-01-12$1.28$1.2822,300
2026-01-09$1.25$1.2585,900
2026-01-08$1.27$1.2755,200
2026-01-07$1.29$1.2923,300
2026-01-06$1.32$1.3222,500
2026-01-05$1.32$1.3242,000
2026-01-02$1.28$1.2846,900