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 — 2009

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2009-12-31$3.79$3.7911,500
2009-12-30$3.63$3.6319,300
2009-12-29$3.72$3.7232,000
2009-12-28$3.70$3.7020,700
2009-12-24$3.75$3.756,400
2009-12-23$3.71$3.7118,100
2009-12-22$3.99$3.9913,800
2009-12-21$3.75$3.7517,500
2009-12-18$3.93$3.9321,400
2009-12-17$3.92$3.9222,800
2009-12-16$3.87$3.8758,300
2009-12-15$3.70$3.7017,600
2009-12-14$3.62$3.6213,800
2009-12-11$3.71$3.7116,100
2009-12-10$3.76$3.7631,700
2009-12-09$3.77$3.774,100
2009-12-08$3.80$3.8029,700
2009-12-07$3.84$3.8414,000
2009-12-04$3.96$3.969,300
2009-12-03$3.90$3.9010,100
2009-12-02$3.81$3.818,300
2009-12-01$3.81$3.8126,100
2009-11-30$3.87$3.8711,700
2009-11-27$3.91$3.911,500
2009-11-25$3.90$3.905,100
2009-11-24$4.14$4.1426,400
2009-11-23$4.00$4.008,900
2009-11-20$4.10$4.109,100
2009-11-19$4.09$4.0916,500
2009-11-18$4.30$4.3013,500
2009-11-17$4.41$4.4128,600
2009-11-16$4.16$4.1631,000
2009-11-13$3.94$3.9417,900
2009-11-12$3.77$3.7721,400
2009-11-11$3.68$3.687,400
2009-11-10$3.67$3.6712,200
2009-11-09$3.84$3.848,600
2009-11-06$3.84$3.846,100
2009-11-05$3.67$3.6716,800
2009-11-04$3.68$3.687,600
2009-11-03$3.74$3.7412,600
2009-11-02$3.67$3.6719,100
2009-10-30$3.62$3.6231,100
2009-10-29$3.57$3.5727,700
2009-10-28$3.75$3.7540,600
2009-10-27$4.05$4.0520,400
2009-10-26$4.07$4.0714,900
2009-10-23$4.25$4.2520,600
2009-10-22$4.29$4.2921,200
2009-10-21$4.32$4.3216,000
2009-10-20$4.29$4.2944,900
2009-10-19$4.56$4.5631,400
2009-10-16$4.55$4.5524,300
2009-10-15$4.67$4.6723,300
2009-10-14$4.39$4.3934,200
2009-10-13$4.63$4.6329,600
2009-10-12$4.38$4.3817,000
2009-10-09$4.30$4.3010,100
2009-10-08$4.26$4.2613,100
2009-10-07$4.16$4.1629,300
2009-10-06$4.06$4.0617,400
2009-10-05$4.04$4.0418,500
2009-10-02$4.15$4.157,900
2009-10-01$4.22$4.2213,300
2009-09-30$4.12$4.1216,100
2009-09-29$4.40$4.4028,500
2009-09-28$4.44$4.4415,600
2009-09-25$4.47$4.4724,500
2009-09-24$4.26$4.2678,000
2009-09-23$4.54$4.5478,300
2009-09-22$4.72$4.7265,000
2009-09-21$4.07$4.0716,500
2009-09-18$3.91$3.9159,100
2009-09-17$4.04$4.0471,100
2009-09-16$3.70$3.7074,400
2009-09-15$3.56$3.5642,800
2009-09-14$3.41$3.4170,200
2009-09-11$3.42$3.4242,700
2009-09-10$3.33$3.3341,400
2009-09-09$3.32$3.3224,200
2009-09-08$3.27$3.2712,900
2009-09-04$3.39$3.3952,000
2009-09-03$3.19$3.196,400
2009-09-02$3.15$3.1512,600
2009-09-01$3.05$3.059,400
2009-08-31$3.11$3.1135,800
2009-08-28$3.20$3.2027,200
2009-08-27$3.35$3.3516,100
2009-08-26$3.48$3.4810,600
2009-08-25$3.52$3.5213,000
2009-08-24$3.53$3.5340,400
2009-08-21$3.62$3.623,300
2009-08-20$3.63$3.633,400
2009-08-19$3.56$3.5629,100
2009-08-18$3.54$3.5414,700
2009-08-17$3.52$3.527,500
2009-08-14$3.60$3.609,700
2009-08-13$3.65$3.6517,700
2009-08-12$3.72$3.7216,400
2009-08-11$3.82$3.8211,500
2009-08-10$3.65$3.6533,000
2009-08-07$3.65$3.6513,700
2009-08-06$3.65$3.6513,200
2009-08-05$3.70$3.7026,300
2009-08-04$3.80$3.8010,300
2009-08-03$3.90$3.9022,400
2009-07-31$3.85$3.8517,700
2009-07-30$3.94$3.9419,400
2009-07-29$3.90$3.9029,700
2009-07-28$3.65$3.6544,200
2009-07-27$4.00$4.0027,500
2009-07-24$4.09$4.0922,200
2009-07-23$4.02$4.0226,500
2009-07-22$4.20$4.20153,500
2009-07-21$3.48$3.4845,900
2009-07-20$3.29$3.2966,700
2009-07-17$2.75$2.75115,100
2009-07-16$2.71$2.7110,000
2009-07-15$2.63$2.63117,500
2009-07-14$2.52$2.5228,800
2009-07-13$2.70$2.7034,900
2009-07-10$2.99$2.9921,500
2009-07-09$3.00$3.0015,300
2009-07-08$3.01$3.0120,600
2009-07-07$3.19$3.1919,700
2009-07-06$3.23$3.2310,300
2009-07-02$3.35$3.3512,700
2009-07-01$3.38$3.389,700
2009-06-30$3.58$3.5818,400
2009-06-29$3.36$3.3618,000
2009-06-26$3.58$3.5810,000
2009-06-25$3.48$3.4826,900
2009-06-24$3.46$3.4626,400
2009-06-23$3.41$3.4115,200
2009-06-22$3.47$3.4721,500
2009-06-19$3.38$3.3825,400
2009-06-18$3.59$3.599,600
2009-06-17$3.73$3.7310,900
2009-06-16$3.70$3.7018,700
2009-06-15$3.58$3.5835,600
2009-06-12$3.78$3.7861,500
2009-06-11$3.50$3.5039,600
2009-06-10$3.05$3.0521,100
2009-06-09$2.99$2.9917,000
2009-06-08$2.98$2.9817,500
2009-06-05$3.04$3.04103,400
2009-06-04$3.03$3.0317,100
2009-06-03$2.93$2.9316,700
2009-06-02$3.02$3.0214,800
2009-06-01$3.02$3.029,700
2009-05-29$3.10$3.1020,800
2009-05-28$3.09$3.0917,300
2009-05-27$3.12$3.128,400
2009-05-26$3.15$3.158,500
2009-05-22$3.26$3.262,600
2009-05-21$3.43$3.436,200
2009-05-20$3.14$3.1412,500
2009-05-19$3.10$3.103,900
2009-05-18$3.10$3.108,700
2009-05-15$2.96$2.967,800
2009-05-14$3.02$3.025,400
2009-05-13$3.05$3.0516,900
2009-05-12$3.16$3.168,200
2009-05-11$3.24$3.2418,000
2009-05-08$3.19$3.1917,800
2009-05-07$3.13$3.1318,500
2009-05-06$3.32$3.3216,400
2009-05-05$3.58$3.5814,200
2009-05-04$3.59$3.599,500
2009-05-01$3.55$3.553,700
2009-04-30$3.65$3.6519,100
2009-04-29$3.51$3.514,000
2009-04-28$3.46$3.463,300
2009-04-27$3.48$3.487,800
2009-04-24$3.54$3.5416,700
2009-04-23$3.44$3.445,000
2009-04-22$3.45$3.458,700
2009-04-21$3.29$3.2911,000
2009-04-20$3.24$3.2420,900
2009-04-17$3.45$3.4515,600
2009-04-16$3.74$3.746,400
2009-04-15$3.81$3.812,900
2009-04-14$3.82$3.8218,200
2009-04-13$4.03$4.0322,300
2009-04-09$3.97$3.979,900
2009-04-08$3.83$3.836,900
2009-04-07$3.97$3.9718,000
2009-04-06$4.03$4.0311,200
2009-04-03$4.16$4.1616,100
2009-04-02$4.20$4.2037,400
2009-04-01$4.35$4.3511,900
2009-03-31$4.49$4.4912,000
2009-03-30$4.33$4.3311,900
2009-03-27$4.19$4.1915,100
2009-03-26$4.14$4.1433,100
2009-03-25$3.99$3.9923,300
2009-03-24$3.94$3.944,000
2009-03-23$3.96$3.9610,500
2009-03-20$3.66$3.664,100
2009-03-19$3.65$3.656,000
2009-03-18$3.64$3.6417,700
2009-03-17$3.36$3.3627,800
2009-03-16$3.18$3.186,800
2009-03-13$3.11$3.1119,000
2009-03-12$2.85$2.8514,200
2009-03-11$2.80$2.806,900
2009-03-10$2.53$2.5317,800
2009-03-09$2.54$2.5416,700
2009-03-06$2.75$2.7529,100
2009-03-05$3.08$3.0811,800
2009-03-04$2.94$2.947,300
2009-03-03$2.75$2.7517,800
2009-03-02$2.50$2.5012,400
2009-02-27$2.60$2.6015,600
2009-02-26$2.58$2.5813,000
2009-02-25$2.43$2.4346,100
2009-02-24$2.64$2.6429,000
2009-02-23$2.67$2.6741,300
2009-02-20$3.21$3.2111,100
2009-02-19$3.20$3.2013,300
2009-02-18$3.19$3.1953,500
2009-02-17$3.96$3.9624,200
2009-02-13$4.74$4.7427,100
2009-02-12$4.40$4.4069,100
2009-02-11$4.80$4.8045,700
2009-02-10$3.86$3.8625,200
2009-02-09$3.91$3.9123,400
2009-02-06$3.57$3.579,700
2009-02-05$3.63$3.6350,500
2009-02-04$3.70$3.7015,500
2009-02-03$3.39$3.3933,500
2009-02-02$3.05$3.0551,600
2009-01-30$3.10$3.1011,200
2009-01-29$2.92$2.9221,000
2009-01-28$2.86$2.8610,900
2009-01-27$2.75$2.7513,600
2009-01-26$2.63$2.6312,000
2009-01-23$2.61$2.618,200
2009-01-22$2.56$2.568,600
2009-01-21$2.65$2.6517,000
2009-01-20$2.05$2.0546,500
2009-01-16$2.10$2.1062,900
2009-01-15$2.54$2.5445,900
2009-01-14$2.48$2.4815,700
2009-01-13$2.24$2.2413,200
2009-01-12$2.18$2.189,400
2009-01-09$2.34$2.3415,400
2009-01-08$2.29$2.2927,200
2009-01-07$2.36$2.3613,300
2009-01-06$2.39$2.3946,900
2009-01-05$2.46$2.4620,100
2009-01-02$2.32$2.3225,000