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 — 2006

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2006-12-29$5.48$5.4832,300
2006-12-28$5.46$5.4617,900
2006-12-27$5.30$5.3016,800
2006-12-26$5.38$5.3815,900
2006-12-22$5.40$5.4016,700
2006-12-21$5.32$5.3218,200
2006-12-20$5.38$5.3822,200
2006-12-19$5.39$5.3913,700
2006-12-18$5.30$5.3028,300
2006-12-15$5.56$5.5621,900
2006-12-14$5.56$5.5634,400
2006-12-13$5.58$5.5834,100
2006-12-12$5.89$5.8910,200
2006-12-11$5.90$5.9023,900
2006-12-08$6.02$6.0233,800
2006-12-07$6.05$6.0520,900
2006-12-06$6.16$6.1628,300
2006-12-05$6.15$6.1515,800
2006-12-04$6.04$6.0419,300
2006-12-01$6.00$6.0028,100
2006-11-30$6.03$6.0320,300
2006-11-29$6.21$6.2157,700
2006-11-28$5.95$5.9522,700
2006-11-27$5.55$5.5523,600
2006-11-24$5.43$5.4310,200
2006-11-22$5.40$5.4027,100
2006-11-21$5.25$5.259,000
2006-11-20$5.34$5.3425,600
2006-11-17$5.40$5.4033,000
2006-11-16$5.69$5.6921,600
2006-11-15$5.38$5.3824,300
2006-11-14$5.23$5.2341,300
2006-11-13$5.59$5.5940,700
2006-11-10$5.60$5.6022,200
2006-11-09$5.56$5.5630,900
2006-11-08$5.47$5.4749,400
2006-11-07$5.75$5.7585,400
2006-11-06$6.23$6.2374,800
2006-11-03$6.50$6.5083,600
2006-11-02$6.27$6.2761,700
2006-11-01$6.21$6.21100,000
2006-10-31$5.78$5.7837,700
2006-10-30$5.47$5.4720,200
2006-10-27$5.49$5.497,200
2006-10-26$5.47$5.4734,400
2006-10-25$5.49$5.4923,300
2006-10-24$5.46$5.4628,700
2006-10-23$5.20$5.2031,200
2006-10-20$5.35$5.3512,400
2006-10-19$5.25$5.2536,300
2006-10-18$5.37$5.3747,800
2006-10-17$5.15$5.1550,200
2006-10-16$5.38$5.3860,700
2006-10-13$4.91$4.9166,400
2006-10-12$5.11$5.11140,300
2006-10-11$4.37$4.3712,600
2006-10-10$4.40$4.4015,200
2006-10-09$4.22$4.2233,400
2006-10-06$4.10$4.1017,200
2006-10-05$4.20$4.2032,200
2006-10-04$4.16$4.1640,400
2006-10-03$4.27$4.2731,400
2006-10-02$4.52$4.5224,100
2006-09-29$4.32$4.3218,800
2006-09-28$4.32$4.3214,500
2006-09-27$4.38$4.3842,000
2006-09-26$4.41$4.4123,400
2006-09-25$4.23$4.2312,100
2006-09-22$4.22$4.229,200
2006-09-21$4.09$4.0940,000
2006-09-20$4.01$4.0139,300
2006-09-19$4.12$4.1232,600
2006-09-18$4.18$4.1812,600
2006-09-15$4.24$4.2420,000
2006-09-14$4.26$4.2610,500
2006-09-13$4.21$4.2110,100
2006-09-12$4.11$4.1115,300
2006-09-11$4.06$4.0615,600
2006-09-08$4.12$4.1226,500
2006-09-07$4.19$4.1912,500
2006-09-06$4.21$4.2113,000
2006-09-05$4.24$4.2424,600
2006-09-01$4.25$4.2520,800
2006-08-31$4.20$4.2011,200
2006-08-30$4.25$4.2527,400
2006-08-29$4.19$4.1927,500
2006-08-28$4.16$4.1658,700
2006-08-25$4.14$4.1433,000
2006-08-24$4.20$4.2019,800
2006-08-23$4.21$4.2113,700
2006-08-22$4.20$4.2017,000
2006-08-21$4.19$4.1946,400
2006-08-18$4.20$4.2029,700
2006-08-17$4.18$4.1835,100
2006-08-16$4.32$4.3234,500
2006-08-15$4.29$4.2920,700
2006-08-14$4.42$4.4238,900
2006-08-11$4.35$4.3524,100
2006-08-10$4.45$4.4530,100
2006-08-09$4.28$4.288,700
2006-08-08$4.27$4.2731,100
2006-08-07$4.18$4.1829,800
2006-08-04$4.25$4.2520,200
2006-08-03$4.28$4.2832,300
2006-08-02$4.21$4.215,700
2006-08-01$4.26$4.2617,200
2006-07-31$4.30$4.3018,400
2006-07-28$4.37$4.3733,900
2006-07-27$4.25$4.2517,800
2006-07-26$4.22$4.2223,600
2006-07-25$4.32$4.3217,200
2006-07-24$4.31$4.3114,700
2006-07-21$4.38$4.3810,600
2006-07-20$4.41$4.4119,000
2006-07-19$4.48$4.48101,900
2006-07-18$4.55$4.5589,900
2006-07-17$4.42$4.42140,200
2006-07-14$4.94$4.9426,700
2006-07-13$4.91$4.9126,000
2006-07-12$5.10$5.1020,500
2006-07-11$4.98$4.9821,200
2006-07-10$5.00$5.0021,600
2006-07-07$4.77$4.7726,800
2006-07-06$4.87$4.8726,300
2006-07-05$5.16$5.1613,800
2006-07-03$5.22$5.227,400
2006-06-30$5.18$5.1825,200
2006-06-29$5.03$5.0323,000
2006-06-28$4.93$4.9317,400
2006-06-27$4.90$4.9018,700
2006-06-26$4.83$4.8329,200
2006-06-23$4.87$4.8713,900
2006-06-22$4.87$4.8722,300
2006-06-21$4.82$4.8251,400
2006-06-20$5.11$5.1120,900
2006-06-19$5.14$5.1449,300
2006-06-16$4.91$4.9132,800
2006-06-15$4.82$4.8259,500
2006-06-14$4.60$4.6071,000
2006-06-13$4.81$4.81163,000
2006-06-12$5.38$5.3853,600
2006-06-09$5.71$5.7131,800
2006-06-08$5.31$5.3144,900
2006-06-07$5.43$5.4380,400
2006-06-06$5.78$5.7879,500
2006-06-05$5.65$5.65345,100
2006-06-02$5.46$5.4639,800
2006-06-01$5.19$5.1945,800
2006-05-31$5.40$5.4080,900
2006-05-30$5.34$5.3465,100
2006-05-26$5.43$5.4314,800
2006-05-25$5.39$5.3962,900
2006-05-24$5.25$5.25140,800
2006-05-23$5.98$5.9848,800
2006-05-22$5.95$5.9553,200
2006-05-19$6.04$6.04654,500
2006-05-18$6.00$6.00337,300
2006-05-17$5.83$5.8357,100
2006-05-16$6.00$6.0052,800
2006-05-15$5.80$5.8042,700
2006-05-12$5.60$5.6041,500
2006-05-11$5.70$5.70323,700
2006-05-10$5.79$5.7986,400
2006-05-09$5.68$5.68131,100
2006-05-08$5.59$5.59130,500
2006-05-05$5.67$5.67436,200
2006-05-04$5.34$5.3416,600
2006-05-03$5.30$5.3016,700
2006-05-02$5.35$5.3519,000
2006-05-01$5.32$5.3256,000
2006-04-28$5.45$5.4587,700
2006-04-27$5.74$5.74271,300
2006-04-26$5.52$5.5241,200
2006-04-25$5.48$5.4838,500
2006-04-24$5.56$5.5641,600
2006-04-21$5.46$5.46132,900
2006-04-20$5.37$5.37170,500
2006-04-19$5.73$5.7387,400
2006-04-18$5.40$5.4078,100
2006-04-17$5.74$5.741,141,800
2006-04-13$5.11$5.1121,900
2006-04-12$4.85$4.85126,700
2006-04-11$5.07$5.07420,200
2006-04-10$5.36$5.36384,300
2006-04-07$4.71$4.71147,900
2006-04-06$4.81$4.81352,300
2006-04-05$4.23$4.23974,900
2006-04-04$3.91$3.9183,400
2006-04-03$3.77$3.7711,700
2006-03-31$3.86$3.86116,100
2006-03-30$3.95$3.9518,900
2006-03-29$3.95$3.9547,800
2006-03-28$3.97$3.979,400
2006-03-27$4.01$4.015,700
2006-03-24$3.96$3.9625,200
2006-03-23$4.03$4.0328,200
2006-03-22$3.90$3.9011,700
2006-03-21$4.08$4.0812,800
2006-03-20$4.01$4.0119,700
2006-03-17$4.15$4.1567,400
2006-03-16$3.96$3.9636,600
2006-03-15$4.03$4.0321,000
2006-03-14$4.08$4.0819,200
2006-03-13$4.07$4.0771,600
2006-03-10$4.45$4.459,700
2006-03-09$4.42$4.423,000
2006-03-08$4.47$4.478,000
2006-03-07$4.69$4.6910,400
2006-03-06$4.80$4.8033,100
2006-03-03$4.40$4.4012,900
2006-03-02$4.53$4.5310,900
2006-03-01$4.33$4.3334,200
2006-02-28$4.18$4.1829,000
2006-02-27$4.20$4.2031,700
2006-02-24$4.42$4.4238,700
2006-02-23$4.49$4.4945,500
2006-02-22$4.74$4.7418,200
2006-02-21$4.67$4.6721,700
2006-02-17$4.71$4.718,800
2006-02-16$4.82$4.8218,800
2006-02-15$4.78$4.7815,800
2006-02-14$4.87$4.8711,000
2006-02-13$5.01$5.016,500
2006-02-10$5.02$5.022,900
2006-02-09$5.02$5.026,700
2006-02-08$4.98$4.983,900
2006-02-07$4.96$4.9624,000
2006-02-06$5.10$5.1010,400
2006-02-03$5.11$5.114,500
2006-02-02$5.05$5.055,400
2006-02-01$5.02$5.0219,100
2006-01-31$5.10$5.1033,600
2006-01-30$4.99$4.9911,900
2006-01-27$5.02$5.0225,600
2006-01-26$5.02$5.0244,900
2006-01-25$4.99$4.9924,700
2006-01-24$4.94$4.9435,800
2006-01-23$4.90$4.9052,300
2006-01-20$5.13$5.1377,300
2006-01-19$5.28$5.28119,500
2006-01-18$5.38$5.38124,900
2006-01-17$5.18$5.1849,800
2006-01-13$5.27$5.2723,500
2006-01-12$5.22$5.2299,300
2006-01-11$5.49$5.4976,500
2006-01-10$5.97$5.9717,500
2006-01-09$6.00$6.0039,400
2006-01-06$6.07$6.0774,400
2006-01-05$5.74$5.74175,500
2006-01-04$5.58$5.5837,900
2006-01-03$5.33$5.33118,400