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 — 2016

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2016-12-30$1.82$1.8282,100
2016-12-29$1.77$1.7771,900
2016-12-28$1.79$1.7983,100
2016-12-27$1.90$1.9063,200
2016-12-23$1.98$1.9881,700
2016-12-22$1.86$1.8649,600
2016-12-21$1.88$1.8865,800
2016-12-20$1.84$1.8481,700
2016-12-19$1.87$1.8770,000
2016-12-16$1.93$1.9353,700
2016-12-15$1.96$1.96112,100
2016-12-14$1.86$1.8637,300
2016-12-13$1.91$1.9196,700
2016-12-12$1.82$1.8225,200
2016-12-09$1.91$1.9170,500
2016-12-08$1.84$1.8430,300
2016-12-07$1.86$1.8685,300
2016-12-06$1.81$1.81171,300
2016-12-05$1.70$1.70115,100
2016-12-02$1.75$1.75111,500
2016-12-01$1.69$1.69103,400
2016-11-30$1.77$1.77121,500
2016-11-29$1.87$1.87200,400
2016-11-28$2.02$2.0242,900
2016-11-25$2.11$2.1130,800
2016-11-23$2.11$2.11103,600
2016-11-22$2.13$2.1348,600
2016-11-21$2.15$2.1588,100
2016-11-18$2.16$2.1683,700
2016-11-17$2.18$2.18118,100
2016-11-16$2.20$2.20101,700
2016-11-15$2.05$2.0546,700
2016-11-14$2.04$2.0420,900
2016-11-11$2.04$2.0456,500
2016-11-10$2.00$2.00120,100
2016-11-09$1.99$1.99112,800
2016-11-08$2.07$2.078,300
2016-11-07$2.04$2.0432,200
2016-11-04$2.07$2.07114,000
2016-11-03$1.91$1.9151,100
2016-11-02$2.02$2.026,300
2016-11-01$2.09$2.0925,800
2016-10-31$2.19$2.1913,300
2016-10-28$2.15$2.1515,600
2016-10-27$2.16$2.1612,800
2016-10-26$2.22$2.229,700
2016-10-25$2.25$2.2536,800
2016-10-24$2.38$2.3819,300
2016-10-21$2.38$2.3825,100
2016-10-20$2.35$2.3574,700
2016-10-19$2.23$2.2332,900
2016-10-18$2.22$2.2230,600
2016-10-17$2.20$2.205,200
2016-10-14$2.11$2.1153,600
2016-10-13$2.16$2.16122,600
2016-10-12$2.26$2.2619,800
2016-10-11$2.42$2.4214,200
2016-10-10$2.49$2.4983,400
2016-10-07$2.48$2.4842,500
2016-10-06$2.52$2.5224,700
2016-10-05$2.47$2.4743,800
2016-10-04$2.44$2.4469,100
2016-10-03$2.56$2.5688,900
2016-09-30$2.59$2.5985,800
2016-09-29$2.59$2.59112,600
2016-09-28$2.58$2.5842,900
2016-09-27$2.61$2.6122,800
2016-09-26$2.61$2.6152,700
2016-09-23$2.65$2.65107,600
2016-09-22$2.66$2.6650,200
2016-09-21$2.80$2.8023,300
2016-09-20$2.83$2.8336,500
2016-09-19$2.95$2.9576,100
2016-09-16$2.87$2.8742,300
2016-09-15$2.87$2.8716,900
2016-09-14$2.91$2.9116,400
2016-09-13$2.93$2.9315,600
2016-09-12$3.13$3.1389,000
2016-09-09$2.93$2.9313,700
2016-09-08$2.98$2.9822,300
2016-09-07$3.00$3.0047,200
2016-09-06$2.95$2.9525,800
2016-09-02$3.01$3.0134,100
2016-09-01$3.06$3.0644,500
2016-08-31$3.11$3.1121,000
2016-08-30$3.09$3.096,100
2016-08-29$3.07$3.0745,300
2016-08-26$2.97$2.975,700
2016-08-25$2.93$2.934,600
2016-08-24$2.95$2.9521,200
2016-08-23$3.00$3.006,700
2016-08-22$2.91$2.9144,600
2016-08-19$3.01$3.0111,000
2016-08-18$3.01$3.014,700
2016-08-17$3.06$3.0638,600
2016-08-16$3.09$3.0944,700
2016-08-15$3.10$3.1036,800
2016-08-12$3.07$3.0720,100
2016-08-11$3.04$3.0446,800
2016-08-10$3.02$3.0241,400
2016-08-09$3.00$3.0078,900
2016-08-08$2.91$2.91150,900
2016-08-05$3.22$3.22120,800
2016-08-04$3.49$3.4950,400
2016-08-03$3.69$3.6957,600
2016-08-02$3.73$3.7356,500
2016-08-01$3.53$3.5354,000
2016-07-29$3.44$3.4444,600
2016-07-28$3.23$3.23164,400
2016-07-27$3.13$3.1363,900
2016-07-26$3.25$3.2524,500
2016-07-25$3.26$3.2641,800
2016-07-22$3.31$3.3115,600
2016-07-21$3.41$3.4110,700
2016-07-20$3.43$3.438,900
2016-07-19$3.42$3.427,000
2016-07-18$3.43$3.4312,500
2016-07-15$3.40$3.4014,700
2016-07-14$3.44$3.4430,000
2016-07-13$3.59$3.5916,000
2016-07-12$3.76$3.766,900
2016-07-11$3.79$3.7929,800
2016-07-08$3.73$3.7311,300
2016-07-07$3.73$3.7323,000
2016-07-06$3.62$3.6233,600
2016-07-05$3.43$3.4332,800
2016-07-01$3.60$3.604,200
2016-06-30$3.65$3.6535,400
2016-06-29$3.56$3.5614,600
2016-06-28$3.48$3.4813,700
2016-06-27$3.31$3.3132,400
2016-06-24$3.61$3.6126,800
2016-06-23$3.66$3.6640,600
2016-06-22$3.72$3.7213,100
2016-06-21$3.75$3.7517,100
2016-06-20$3.81$3.817,000
2016-06-17$3.80$3.806,800
2016-06-16$3.84$3.8423,700
2016-06-15$3.79$3.7946,700
2016-06-14$3.78$3.7821,900
2016-06-13$3.73$3.7313,700
2016-06-10$3.76$3.7626,700
2016-06-09$3.77$3.7739,500
2016-06-08$3.84$3.8419,000
2016-06-07$3.92$3.9253,800
2016-06-06$3.91$3.9129,100
2016-06-03$3.92$3.9242,100
2016-06-02$3.98$3.9810,700
2016-06-01$4.05$4.0514,000
2016-05-31$4.07$4.0724,300
2016-05-27$4.05$4.0520,300
2016-05-26$3.99$3.9924,000
2016-05-25$3.97$3.9712,000
2016-05-24$3.95$3.957,600
2016-05-23$3.92$3.9229,900
2016-05-20$3.92$3.9211,100
2016-05-19$3.94$3.9410,300
2016-05-18$3.96$3.9617,700
2016-05-17$3.96$3.9657,500
2016-05-16$4.11$4.1136,900
2016-05-13$3.96$3.96102,500
2016-05-12$4.17$4.1720,300
2016-05-11$4.29$4.291,100
2016-05-10$4.28$4.2849,200
2016-05-09$4.21$4.2142,100
2016-05-06$4.40$4.4050,500
2016-05-05$4.51$4.5117,800
2016-05-04$4.69$4.6929,900
2016-05-03$4.60$4.6031,700
2016-05-02$4.52$4.5222,900
2016-04-29$4.54$4.5421,700
2016-04-28$4.59$4.5914,200
2016-04-27$4.56$4.5612,400
2016-04-26$4.58$4.5834,400
2016-04-25$4.64$4.6416,700
2016-04-22$4.56$4.5615,000
2016-04-21$4.53$4.538,000
2016-04-20$4.61$4.6116,700
2016-04-19$4.53$4.5321,900
2016-04-18$4.69$4.6920,700
2016-04-15$4.78$4.7810,300
2016-04-14$4.81$4.8123,500
2016-04-13$4.98$4.9812,100
2016-04-12$4.99$4.9929,600
2016-04-11$5.00$5.0069,600
2016-04-08$4.87$4.8746,200
2016-04-07$4.84$4.8416,100
2016-04-06$4.75$4.7519,200
2016-04-05$4.68$4.6820,900
2016-04-04$4.76$4.7622,300
2016-04-01$4.68$4.6816,900
2016-03-31$4.56$4.5616,200
2016-03-30$4.69$4.6936,800
2016-03-29$4.70$4.7014,600
2016-03-28$4.80$4.8083,100
2016-03-24$4.85$4.8544,600
2016-03-23$4.74$4.746,000
2016-03-22$4.78$4.7847,800
2016-03-21$4.83$4.8365,100
2016-03-18$4.60$4.6029,400
2016-03-17$4.50$4.5020,100
2016-03-16$4.52$4.5224,700
2016-03-15$4.43$4.4312,900
2016-03-14$4.38$4.3819,500
2016-03-11$4.44$4.4416,700
2016-03-10$4.30$4.3065,600
2016-03-09$4.67$4.6725,000
2016-03-08$4.55$4.5515,400
2016-03-07$4.56$4.5615,400
2016-03-04$4.40$4.4034,200
2016-03-03$4.61$4.6144,500
2016-03-02$4.59$4.5917,300
2016-03-01$4.61$4.6113,900
2016-02-29$4.63$4.6318,000
2016-02-26$4.61$4.6132,300
2016-02-25$4.45$4.4514,100
2016-02-24$4.33$4.3319,700
2016-02-23$4.32$4.3222,300
2016-02-22$4.39$4.3929,200
2016-02-19$4.32$4.3226,600
2016-02-18$4.33$4.3315,500
2016-02-17$4.30$4.3012,900
2016-02-16$4.29$4.2935,400
2016-02-12$4.18$4.1874,200
2016-02-11$4.10$4.1025,100
2016-02-10$4.21$4.216,800
2016-02-09$4.17$4.1730,000
2016-02-08$4.14$4.1447,900
2016-02-05$4.28$4.2870,800
2016-02-04$4.32$4.3219,700
2016-02-03$4.17$4.1746,300
2016-02-02$4.22$4.2245,200
2016-02-01$4.34$4.3435,000
2016-01-29$4.29$4.2920,100
2016-01-28$4.23$4.2320,400
2016-01-27$4.24$4.2432,900
2016-01-26$4.40$4.4032,000
2016-01-25$4.21$4.2117,500
2016-01-22$4.52$4.5238,500
2016-01-21$4.34$4.3446,700
2016-01-20$4.25$4.2574,200
2016-01-19$4.21$4.21110,700
2016-01-15$4.38$4.3846,400
2016-01-14$4.52$4.52102,600
2016-01-13$4.50$4.5042,200
2016-01-12$4.70$4.7015,800
2016-01-11$4.82$4.8231,300
2016-01-08$4.83$4.8320,500
2016-01-07$4.84$4.8419,100
2016-01-06$5.03$5.0324,000
2016-01-05$5.04$5.0439,700
2016-01-04$4.86$4.8625,400