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 — 2019

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2019-12-31$3.01$3.01184,500
2019-12-30$3.10$3.1089,500
2019-12-27$3.07$3.0787,300
2019-12-26$3.08$3.0844,200
2019-12-24$3.06$3.0640,000
2019-12-23$3.07$3.0745,300
2019-12-20$3.17$3.1742,900
2019-12-19$3.22$3.2282,900
2019-12-18$3.36$3.36113,300
2019-12-17$3.25$3.2593,700
2019-12-16$2.99$2.99111,200
2019-12-13$2.89$2.89176,500
2019-12-12$3.00$3.0033,200
2019-12-11$2.95$2.9584,700
2019-12-10$2.85$2.85139,200
2019-12-09$3.02$3.02270,100
2019-12-06$3.06$3.06131,000
2019-12-05$3.00$3.0088,100
2019-12-04$3.04$3.0489,800
2019-12-03$3.07$3.0769,500
2019-12-02$3.10$3.1084,200
2019-11-29$3.18$3.1825,800
2019-11-27$3.25$3.2594,600
2019-11-26$3.49$3.4985,600
2019-11-25$3.59$3.59216,300
2019-11-22$3.38$3.38143,100
2019-11-21$3.05$3.05125,400
2019-11-20$3.18$3.18121,400
2019-11-19$3.13$3.13156,100
2019-11-18$3.04$3.04202,500
2019-11-15$3.16$3.16103,400
2019-11-14$3.32$3.32114,800
2019-11-13$3.34$3.3486,100
2019-11-12$3.39$3.3974,400
2019-11-11$3.51$3.5128,900
2019-11-08$3.61$3.61121,900
2019-11-07$3.47$3.4794,200
2019-11-06$3.63$3.6399,200
2019-11-05$3.78$3.78277,600
2019-11-04$3.50$3.5063,000
2019-11-01$3.41$3.4127,800
2019-10-31$3.50$3.5052,000
2019-10-30$3.55$3.5542,200
2019-10-29$3.33$3.3327,500
2019-10-28$3.25$3.25123,300
2019-10-25$3.43$3.4381,600
2019-10-24$3.59$3.59177,700
2019-10-23$3.42$3.42103,900
2019-10-22$3.23$3.2373,600
2019-10-21$3.28$3.28100,200
2019-10-18$2.95$2.9594,000
2019-10-17$3.01$3.0148,800
2019-10-16$2.94$2.9476,100
2019-10-15$2.85$2.85164,000
2019-10-14$3.00$3.0065,900
2019-10-11$3.00$3.0083,100
2019-10-10$3.07$3.0747,800
2019-10-09$3.05$3.0563,800
2019-10-08$3.07$3.07129,400
2019-10-07$3.00$3.00146,800
2019-10-04$3.24$3.24101,200
2019-10-03$3.23$3.23164,100
2019-10-02$3.19$3.19134,500
2019-10-01$3.19$3.1977,400
2019-09-30$3.20$3.20246,300
2019-09-27$3.40$3.40310,100
2019-09-26$3.72$3.7293,000
2019-09-25$3.66$3.66138,700
2019-09-24$3.76$3.7682,500
2019-09-23$3.73$3.73126,400
2019-09-20$3.74$3.74248,500
2019-09-19$3.82$3.8289,100
2019-09-18$3.81$3.81210,600
2019-09-17$3.84$3.84107,500
2019-09-16$3.80$3.80222,000
2019-09-13$3.94$3.94223,800
2019-09-12$3.84$3.84221,700
2019-09-11$4.05$4.05249,500
2019-09-10$4.14$4.14281,800
2019-09-09$4.11$4.11253,300
2019-09-06$4.49$4.4981,000
2019-09-05$4.53$4.53606,500
2019-09-04$4.32$4.32113,200
2019-09-03$4.31$4.31378,600
2019-08-30$4.50$4.50161,500
2019-08-29$4.77$4.77239,800
2019-08-28$4.65$4.65198,900
2019-08-27$4.35$4.35397,400
2019-08-26$4.57$4.57520,600
2019-08-23$4.69$4.69309,400
2019-08-22$4.69$4.69253,100
2019-08-21$4.65$4.65579,800
2019-08-20$4.97$4.97507,500
2019-08-19$5.05$5.05973,300
2019-08-16$4.66$4.66278,600
2019-08-15$4.11$4.11259,700
2019-08-14$4.35$4.35393,100
2019-08-13$4.31$4.31320,800
2019-08-12$3.95$3.95375,200
2019-08-09$3.91$3.91429,000
2019-08-08$3.92$3.92303,200
2019-08-07$3.84$3.84207,000
2019-08-06$3.92$3.92347,000
2019-08-05$3.93$3.93789,600
2019-08-02$4.05$4.05464,200
2019-08-01$3.54$3.54300,500
2019-07-31$3.54$3.54614,500
2019-07-30$3.62$3.62861,700
2019-07-29$3.59$3.592,473,300
2019-07-26$3.01$3.0170,100
2019-07-25$2.91$2.9133,600
2019-07-24$3.05$3.0542,300
2019-07-23$3.02$3.02103,100
2019-07-22$3.05$3.0560,700
2019-07-19$2.79$2.79117,200
2019-07-18$2.85$2.85111,700
2019-07-17$3.08$3.08135,000
2019-07-16$3.02$3.02174,100
2019-07-15$3.20$3.2067,400
2019-07-12$3.09$3.09103,300
2019-07-11$2.95$2.95118,500
2019-07-10$3.06$3.06172,800
2019-07-09$3.15$3.1583,000
2019-07-08$3.20$3.20116,000
2019-07-05$3.34$3.34129,500
2019-07-03$3.28$3.28140,500
2019-07-02$3.47$3.47193,400
2019-07-01$3.39$3.39179,400
2019-06-28$3.33$3.33216,800
2019-06-27$3.19$3.19230,700
2019-06-26$3.38$3.3843,000
2019-06-25$3.36$3.3699,500
2019-06-24$3.28$3.28258,600
2019-06-21$3.51$3.51451,900
2019-06-20$3.39$3.39231,000
2019-06-19$3.29$3.29241,400
2019-06-18$3.07$3.07151,800
2019-06-17$3.02$3.0261,400
2019-06-14$2.99$2.9936,200
2019-06-13$2.79$2.79124,700
2019-06-12$2.89$2.8935,800
2019-06-11$2.94$2.9444,400
2019-06-10$3.04$3.0446,700
2019-06-07$2.95$2.9583,600
2019-06-06$2.98$2.9878,900
2019-06-05$2.91$2.9199,700
2019-06-04$2.95$2.9533,000
2019-06-03$2.61$2.61225,300
2019-05-31$2.93$2.9343,400
2019-05-30$2.79$2.7961,200
2019-05-29$2.85$2.85137,300
2019-05-28$2.95$2.9586,100
2019-05-24$3.07$3.07222,100
2019-05-23$3.27$3.2748,500
2019-05-22$3.27$3.2767,500
2019-05-21$3.27$3.27162,500
2019-05-20$3.29$3.29107,100
2019-05-17$3.27$3.27195,000
2019-05-16$3.10$3.10110,700
2019-05-15$3.32$3.32328,600
2019-05-14$2.93$2.9325,500
2019-05-13$2.77$2.7741,800
2019-05-10$2.76$2.7666,400
2019-05-09$2.73$2.7394,800
2019-05-08$2.77$2.77125,800
2019-05-07$2.86$2.86116,600
2019-05-06$2.85$2.85294,800
2019-05-03$3.08$3.0850,500
2019-05-02$3.05$3.05511,600
2019-05-01$3.45$3.45670,800
2019-04-30$3.17$3.17639,500
2019-04-29$2.81$2.8181,000
2019-04-26$2.86$2.86269,000
2019-04-25$2.80$2.80256,200
2019-04-24$2.81$2.81488,800
2019-04-23$2.74$2.74158,900
2019-04-22$2.58$2.58299,000
2019-04-18$2.45$2.45143,800
2019-04-17$2.18$2.1846,800
2019-04-16$2.15$2.1560,600
2019-04-15$2.19$2.1961,100
2019-04-12$2.13$2.1314,800
2019-04-11$2.13$2.1359,200
2019-04-10$2.09$2.0940,300
2019-04-09$2.21$2.2178,700
2019-04-08$2.08$2.0859,500
2019-04-05$2.04$2.0460,200
2019-04-04$2.04$2.04185,600
2019-04-03$2.15$2.15140,500
2019-04-02$2.11$2.11118,900
2019-04-01$2.26$2.26103,100
2019-03-29$2.16$2.16144,400
2019-03-28$2.30$2.3066,900
2019-03-27$2.23$2.23116,800
2019-03-26$2.30$2.30141,700
2019-03-25$2.28$2.2890,600
2019-03-22$2.25$2.2546,500
2019-03-21$2.33$2.33189,100
2019-03-20$2.47$2.47107,200
2019-03-19$2.35$2.3558,300
2019-03-18$2.50$2.5083,300
2019-03-15$2.28$2.28191,800
2019-03-14$2.18$2.18219,800
2019-03-13$2.23$2.2365,500
2019-03-12$2.13$2.1322,100
2019-03-11$2.08$2.0839,200
2019-03-08$2.05$2.0577,100
2019-03-07$2.17$2.1773,300
2019-03-06$2.12$2.12108,800
2019-03-05$2.18$2.1847,900
2019-03-04$2.16$2.16154,500
2019-03-01$2.27$2.2759,200
2019-02-28$2.38$2.3853,400
2019-02-27$2.39$2.39105,200
2019-02-26$2.27$2.27104,300
2019-02-25$2.11$2.11466,200
2019-02-22$2.34$2.34127,600
2019-02-21$2.45$2.45255,000
2019-02-20$2.63$2.63101,300
2019-02-19$2.84$2.84116,600
2019-02-15$2.77$2.77122,500
2019-02-14$2.81$2.81180,000
2019-02-13$2.87$2.87724,700
2019-02-12$2.97$2.97392,400
2019-02-11$2.60$2.6065,300
2019-02-08$2.58$2.5865,600
2019-02-07$2.63$2.6354,600
2019-02-06$2.70$2.70242,300
2019-02-05$2.57$2.57104,700
2019-02-04$2.64$2.64114,900
2019-02-01$2.59$2.59277,500
2019-01-31$2.50$2.50244,500
2019-01-30$2.50$2.50124,700
2019-01-29$2.40$2.40375,600
2019-01-28$2.88$2.88416,900
2019-01-25$2.45$2.45114,700
2019-01-24$2.29$2.2934,700
2019-01-23$2.28$2.2833,200
2019-01-22$2.30$2.30100,000
2019-01-18$2.28$2.2862,200
2019-01-17$2.23$2.2366,800
2019-01-16$2.21$2.21247,200
2019-01-15$2.11$2.11259,800
2019-01-14$1.94$1.9473,500
2019-01-11$1.88$1.888,300
2019-01-10$1.87$1.8768,300
2019-01-09$1.86$1.8679,400
2019-01-08$1.78$1.7816,500
2019-01-07$1.82$1.8245,700
2019-01-04$1.86$1.8688,500
2019-01-03$1.73$1.7388,700
2019-01-02$1.56$1.5619,500