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.

View year

Historical Stock Price — 2013

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2013-12-31$5.78$5.78124,400
2013-12-30$5.57$5.5782,900
2013-12-27$5.57$5.5756,700
2013-12-26$5.54$5.5462,200
2013-12-24$5.56$5.5683,100
2013-12-23$5.49$5.49188,400
2013-12-20$5.83$5.83188,500
2013-12-19$5.62$5.6275,000
2013-12-18$5.68$5.68141,800
2013-12-17$5.80$5.80116,400
2013-12-16$5.92$5.92215,500
2013-12-13$5.63$5.63364,000
2013-12-12$6.00$6.00222,300
2013-12-11$6.29$6.29123,400
2013-12-10$6.80$6.8081,000
2013-12-09$6.75$6.7577,000
2013-12-06$6.96$6.9653,600
2013-12-05$7.02$7.0252,800
2013-12-04$7.07$7.07111,600
2013-12-03$6.72$6.7277,800
2013-12-02$6.69$6.69117,600
2013-11-29$6.68$6.6862,200
2013-11-27$6.79$6.79149,900
2013-11-26$6.88$6.88457,600
2013-11-25$6.73$6.73141,800
2013-11-22$6.84$6.84994,700
2013-11-21$7.43$7.431,137,000
2013-11-20$6.15$6.15111,400
2013-11-19$5.97$5.97175,300
2013-11-18$5.98$5.98225,800
2013-11-15$6.04$6.04261,400
2013-11-14$5.39$5.39153,600
2013-11-13$5.02$5.0252,900
2013-11-12$4.95$4.9576,600
2013-11-11$5.05$5.0599,800
2013-11-08$5.00$5.00361,700
2013-11-07$4.74$4.7471,900
2013-11-06$4.77$4.7715,400
2013-11-05$4.74$4.7429,100
2013-11-04$4.81$4.8119,300
2013-11-01$4.75$4.7537,000
2013-10-31$4.82$4.8227,700
2013-10-30$4.79$4.7917,000
2013-10-29$4.80$4.8043,500
2013-10-28$4.68$4.6821,200
2013-10-25$4.72$4.7240,700
2013-10-24$4.69$4.6940,500
2013-10-23$4.63$4.6369,000
2013-10-22$4.67$4.6776,100
2013-10-21$4.89$4.8952,500
2013-10-18$4.97$4.9772,100
2013-10-17$4.88$4.8850,800
2013-10-16$4.66$4.6615,100
2013-10-15$4.56$4.5663,000
2013-10-14$4.69$4.6988,800
2013-10-11$4.34$4.3422,100
2013-10-10$4.30$4.3016,000
2013-10-09$4.30$4.3015,900
2013-10-08$4.29$4.297,100
2013-10-07$4.28$4.289,700
2013-10-04$4.28$4.2813,700
2013-10-03$4.24$4.2434,800
2013-10-02$4.30$4.3029,300
2013-10-01$4.26$4.2647,600
2013-09-30$4.24$4.2486,900
2013-09-27$4.26$4.26167,900
2013-09-26$4.32$4.3263,200
2013-09-25$4.23$4.2367,500
2013-09-24$4.18$4.1844,200
2013-09-23$4.30$4.3017,300
2013-09-20$4.32$4.3258,600
2013-09-19$4.34$4.3421,200
2013-09-18$4.38$4.3834,300
2013-09-17$4.35$4.3528,000
2013-09-16$4.27$4.2741,500
2013-09-13$4.32$4.3234,200
2013-09-12$4.25$4.2514,100
2013-09-11$4.25$4.2543,500
2013-09-10$4.23$4.2371,000
2013-09-09$4.15$4.1531,000
2013-09-06$4.23$4.2355,700
2013-09-05$4.15$4.1562,500
2013-09-04$4.20$4.2071,600
2013-09-03$4.30$4.3016,400
2013-08-30$4.27$4.2711,500
2013-08-29$4.27$4.2713,600
2013-08-28$4.28$4.2811,000
2013-08-27$4.26$4.2624,800
2013-08-26$4.29$4.2944,400
2013-08-23$4.29$4.2916,200
2013-08-22$4.23$4.2310,500
2013-08-21$4.17$4.1740,800
2013-08-20$4.17$4.1724,400
2013-08-19$4.26$4.2670,200
2013-08-16$4.37$4.3759,500
2013-08-15$4.30$4.30165,300
2013-08-14$4.26$4.2674,700
2013-08-13$4.35$4.35126,800
2013-08-12$4.51$4.51208,900
2013-08-09$4.62$4.62900,300
2013-08-08$4.12$4.1240,700
2013-08-07$3.95$3.9544,800
2013-08-06$3.91$3.9145,500
2013-08-05$3.95$3.9558,600
2013-08-02$4.00$4.0012,000
2013-08-01$3.99$3.9929,900
2013-07-31$4.08$4.0812,300
2013-07-30$4.08$4.0815,200
2013-07-29$4.12$4.1227,400
2013-07-26$4.12$4.127,100
2013-07-25$4.13$4.1313,600
2013-07-24$4.14$4.147,400
2013-07-23$4.07$4.0711,000
2013-07-22$4.06$4.0638,100
2013-07-19$4.08$4.0811,800
2013-07-18$4.08$4.0811,600
2013-07-17$4.07$4.0744,500
2013-07-16$4.20$4.2099,700
2013-07-15$4.03$4.0368,700
2013-07-12$3.94$3.9411,900
2013-07-11$3.94$3.9420,600
2013-07-10$3.90$3.9017,200
2013-07-09$3.89$3.8916,200
2013-07-08$3.97$3.9721,800
2013-07-05$4.00$4.008,300
2013-07-03$3.92$3.9222,200
2013-07-02$3.95$3.9560,100
2013-07-01$3.88$3.8820,000
2013-06-28$3.98$3.9828,200
2013-06-27$3.85$3.8586,200
2013-06-26$3.98$3.9840,700
2013-06-25$4.02$4.0226,800
2013-06-24$4.06$4.0696,600
2013-06-21$4.03$4.03101,700
2013-06-20$4.01$4.01134,200
2013-06-19$4.14$4.14286,000
2013-06-18$4.04$4.0433,700
2013-06-17$4.04$4.0438,100
2013-06-14$4.06$4.0629,800
2013-06-13$4.07$4.0731,800
2013-06-12$4.02$4.0213,800
2013-06-11$3.99$3.9925,700
2013-06-10$4.01$4.0140,100
2013-06-07$3.80$3.8014,400
2013-06-06$3.83$3.8338,700
2013-06-05$3.79$3.7937,600
2013-06-04$3.76$3.7613,600
2013-06-03$3.78$3.7883,000
2013-05-31$3.67$3.6740,300
2013-05-30$3.68$3.6820,200
2013-05-29$3.72$3.7291,400
2013-05-28$3.55$3.5553,200
2013-05-24$3.40$3.4061,300
2013-05-23$3.42$3.4291,200
2013-05-22$3.39$3.39127,400
2013-05-21$3.54$3.5469,300
2013-05-20$3.43$3.4392,000
2013-05-17$3.65$3.6565,100
2013-05-16$3.51$3.5162,200
2013-05-15$3.77$3.77154,300
2013-05-14$3.57$3.57152,800
2013-05-13$3.49$3.49285,100
2013-05-10$3.77$3.77745,500
2013-05-09$4.40$4.40182,100
2013-05-08$4.19$4.1960,100
2013-05-07$4.17$4.17151,600
2013-05-06$4.15$4.15107,300
2013-05-03$4.07$4.0745,600
2013-05-02$4.06$4.0675,200
2013-05-01$3.97$3.97130,300
2013-04-30$4.15$4.1539,400
2013-04-29$4.20$4.2018,500
2013-04-26$4.20$4.2042,300
2013-04-25$4.23$4.2345,700
2013-04-24$4.18$4.1855,900
2013-04-23$4.27$4.27178,100
2013-04-22$4.18$4.1838,800
2013-04-19$4.20$4.2057,500
2013-04-18$4.10$4.10249,200
2013-04-17$4.05$4.0572,100
2013-04-16$4.10$4.1051,100
2013-04-15$4.19$4.19140,400
2013-04-12$4.32$4.32301,300
2013-04-11$4.40$4.40380,800
2013-04-10$4.03$4.03135,100
2013-04-09$4.06$4.06100,600
2013-04-08$4.04$4.04124,500
2013-04-05$4.06$4.06181,200
2013-04-04$4.10$4.10178,500
2013-04-03$3.95$3.95280,600
2013-04-02$4.08$4.08531,400
2013-04-01$4.30$4.301,274,300
2013-03-28$3.68$3.6817,500
2013-03-27$3.70$3.7073,500
2013-03-26$3.67$3.67127,400
2013-03-25$3.55$3.5538,000
2013-03-22$3.60$3.6035,400
2013-03-21$3.73$3.7328,900
2013-03-20$3.71$3.7141,300
2013-03-19$3.49$3.4951,900
2013-03-18$3.52$3.5233,700
2013-03-15$3.35$3.3520,100
2013-03-14$3.22$3.2223,800
2013-03-13$3.15$3.1515,100
2013-03-12$3.14$3.1415,300
2013-03-11$3.22$3.229,500
2013-03-08$3.25$3.2533,200
2013-03-07$3.17$3.1736,100
2013-03-06$3.05$3.0513,500
2013-03-05$3.05$3.058,200
2013-03-04$3.01$3.0120,600
2013-03-01$3.10$3.1062,100
2013-02-28$3.28$3.2855,600
2013-02-27$3.42$3.4293,600
2013-02-26$3.09$3.0914,200
2013-02-25$3.08$3.0815,300
2013-02-22$3.10$3.1022,900
2013-02-21$3.15$3.154,600
2013-02-20$3.29$3.2965,600
2013-02-19$2.99$2.9961,400
2013-02-15$3.03$3.0333,900
2013-02-14$3.07$3.0734,600
2013-02-13$3.02$3.0242,000
2013-02-12$3.04$3.0428,100
2013-02-11$3.01$3.0181,800
2013-02-08$3.02$3.0288,700
2013-02-07$3.07$3.0730,600
2013-02-06$3.05$3.0528,700
2013-02-05$3.17$3.1744,400
2013-02-04$3.15$3.1552,800
2013-02-01$3.28$3.2858,600
2013-01-31$3.35$3.3548,800
2013-01-30$3.29$3.2929,500
2013-01-29$3.44$3.4440,200
2013-01-28$3.51$3.5139,800
2013-01-25$3.55$3.55167,700
2013-01-24$3.54$3.5454,200
2013-01-23$3.65$3.6552,300
2013-01-22$3.69$3.69127,800
2013-01-18$3.68$3.6882,900
2013-01-17$3.59$3.5942,700
2013-01-16$3.65$3.6562,400
2013-01-15$3.72$3.7211,800
2013-01-14$3.70$3.7043,500
2013-01-11$3.95$3.9534,700
2013-01-10$3.96$3.9624,000
2013-01-09$4.01$4.0120,600
2013-01-08$4.02$4.0251,600
2013-01-07$4.04$4.0425,300
2013-01-04$3.95$3.9561,100
2013-01-03$3.85$3.8560,800
2013-01-02$3.87$3.8722,900