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 — 1987

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1987-12-31$1.20$1.2053,250
1987-12-30$1.07$1.0721,375
1987-12-29$1.07$1.0721,938
1987-12-28$0.93$0.937,688
1987-12-24$1.13$1.135,625
1987-12-23$1.13$1.1313,688
1987-12-22$1.13$1.13563
1987-12-21$1.20$1.205,625
1987-12-18$1.33$1.332,625
1987-12-17$1.40$1.405,813
1987-12-16$1.40$1.402,625
1987-12-15$1.47$1.472,063
1987-12-14$1.60$1.606,750
1987-12-11$1.47$1.47375
1987-12-10$1.47$1.475,063
1987-12-09$1.60$1.606,000
1987-12-08$1.47$1.4717,063
1987-12-07$1.20$1.204,313
1987-12-04$1.20$1.2011,438
1987-12-03$1.53$1.5311,250
1987-12-02$1.60$1.605,625
1987-12-01$1.60$1.604,875
1987-11-30$1.67$1.675,625
1987-11-27$1.60$1.603,750
1987-11-25$1.60$1.606,938
1987-11-24$1.53$1.538,438
1987-11-23$1.47$1.473,938
1987-11-20$1.53$1.532,813
1987-11-19$1.60$1.60375
1987-11-18$1.60$1.601,313
1987-11-17$1.60$1.60375
1987-11-16$1.60$1.602,438
1987-11-13$1.53$1.532,438
1987-11-12$1.53$1.531,688
1987-11-11$1.60$1.602,250
1987-11-10$1.60$1.604,688
1987-11-09$1.73$1.7311,625
1987-11-06$1.67$1.673,188
1987-11-05$1.60$1.604,875
1987-11-04$1.53$1.534,500
1987-11-03$1.53$1.5313,688
1987-11-02$1.53$1.5330,188
1987-10-30$1.20$1.202,250
1987-10-29$1.07$1.077,125
1987-10-28$1.20$1.2014,438
1987-10-27$1.33$1.3336,938
1987-10-26$1.33$1.3316,875
1987-10-23$1.60$1.609,188
1987-10-22$1.60$1.6020,625
1987-10-21$1.60$1.607,500
1987-10-20$1.60$1.603,188
1987-10-19$2.13$2.138,813
1987-10-16$2.53$2.532,063
1987-10-15$2.67$2.671,125
1987-10-14$2.67$2.671,688
1987-10-13$2.67$2.674,500
1987-10-12$2.67$2.673,750
1987-10-09$2.80$2.803,938
1987-10-08$2.80$2.80563
1987-10-07$2.80$2.803,938
1987-10-06$2.67$2.673,750
1987-10-05$2.67$2.671,500
1987-10-02$2.80$2.80188
1987-10-01$2.80$2.80750
1987-09-30$2.80$2.800
1987-09-29$2.80$2.80188
1987-09-28$2.80$2.800
1987-09-25$2.80$2.800
1987-09-24$2.80$2.803,750
1987-09-23$2.67$2.678,063
1987-09-22$2.67$2.67750
1987-09-21$2.67$2.673,000
1987-09-18$2.67$2.6714,250
1987-09-17$2.53$2.539,188
1987-09-16$2.93$2.933,000
1987-09-15$2.93$2.932,438
1987-09-14$2.93$2.931,875
1987-09-11$2.93$2.930
1987-09-10$2.93$2.930
1987-09-09$2.93$2.93563
1987-09-08$2.93$2.937,125
1987-09-04$2.93$2.93938
1987-09-03$2.93$2.935,063
1987-09-02$3.47$3.474,688
1987-09-01$3.60$3.605,063
1987-08-31$3.73$3.735,250
1987-08-28$3.73$3.733,938
1987-08-27$4.00$4.0010,500
1987-08-26$3.73$3.734,500
1987-08-25$3.60$3.603,750
1987-08-24$3.60$3.604,313
1987-08-21$3.87$3.872,813
1987-08-20$3.87$3.87938
1987-08-19$3.87$3.87375
1987-08-18$3.87$3.872,250
1987-08-17$3.73$3.73938
1987-08-14$3.87$3.878,625
1987-08-13$3.73$3.733,750
1987-08-12$3.60$3.607,500
1987-08-11$3.73$3.734,125
1987-08-10$3.60$3.603,188
1987-08-07$3.60$3.601,875
1987-08-06$3.60$3.608,250
1987-08-05$3.73$3.7311,063
1987-08-04$3.87$3.8718,750
1987-08-03$3.20$3.2010,313
1987-07-31$2.93$2.932,438
1987-07-30$2.80$2.807,313
1987-07-29$2.80$2.801,313
1987-07-28$2.80$2.809,938
1987-07-27$2.80$2.80375
1987-07-24$2.80$2.805,625
1987-07-23$2.80$2.80750
1987-07-22$2.80$2.803,938
1987-07-21$2.93$2.93188
1987-07-20$2.93$2.935,063
1987-07-17$2.93$2.933,000
1987-07-16$2.80$2.809,188
1987-07-15$2.67$2.67188
1987-07-14$2.67$2.671,500
1987-07-13$2.67$2.67938
1987-07-10$2.67$2.6722,313
1987-07-09$2.67$2.674,875
1987-07-08$2.67$2.6721,000
1987-07-07$2.67$2.678,813
1987-07-06$2.93$2.933,750
1987-07-02$2.93$2.933,000
1987-07-01$3.07$3.07188
1987-06-30$3.07$3.078,438
1987-06-29$3.07$3.07563
1987-06-26$3.07$3.07938
1987-06-25$3.07$3.072,813
1987-06-24$3.07$3.07750
1987-06-23$3.07$3.072,813
1987-06-22$3.07$3.07563
1987-06-19$3.07$3.07188
1987-06-18$3.07$3.0717,813
1987-06-17$3.07$3.072,625
1987-06-16$3.07$3.073,188
1987-06-15$3.07$3.073,938
1987-06-12$3.07$3.072,250
1987-06-11$3.07$3.0717,813
1987-06-10$3.07$3.072,438
1987-06-09$3.07$3.070
1987-06-08$3.07$3.071,875
1987-06-05$3.07$3.073,000
1987-06-04$3.07$3.076,750
1987-06-03$3.07$3.077,500
1987-06-02$3.07$3.0715,938
1987-06-01$3.20$3.202,250
1987-05-29$3.20$3.203,375
1987-05-28$3.20$3.2010,875
1987-05-27$3.20$3.203,938
1987-05-26$3.20$3.202,250
1987-05-22$3.20$3.204,500
1987-05-21$3.20$3.201,688
1987-05-20$3.20$3.206,000
1987-05-19$3.20$3.207,688
1987-05-18$3.20$3.205,063
1987-05-15$3.20$3.202,438
1987-05-14$3.20$3.20938
1987-05-13$3.20$3.202,438
1987-05-12$3.20$3.204,875
1987-05-11$3.33$3.337,313
1987-05-08$3.33$3.335,063
1987-05-07$3.33$3.337,125
1987-05-06$3.20$3.205,063
1987-05-05$3.20$3.208,813
1987-05-04$3.20$3.2014,813
1987-05-01$3.07$3.078,813
1987-04-30$3.20$3.203,188
1987-04-29$3.33$3.336,000
1987-04-28$3.20$3.207,313
1987-04-27$3.20$3.2010,875
1987-04-24$3.33$3.333,188
1987-04-23$3.33$3.334,313
1987-04-22$3.33$3.333,938
1987-04-21$3.33$3.336,938
1987-04-20$3.47$3.477,500
1987-04-16$3.47$3.474,313
1987-04-15$3.47$3.47938
1987-04-14$3.47$3.4712,000
1987-04-13$3.60$3.605,813
1987-04-10$3.73$3.732,250
1987-04-09$3.73$3.732,813
1987-04-08$3.73$3.732,250
1987-04-07$3.73$3.731,875
1987-04-06$3.73$3.732,063
1987-04-03$3.73$3.7327,938
1987-04-02$3.60$3.6014,438
1987-04-01$4.27$4.2714,063
1987-03-31$4.40$4.400
1987-03-30$4.40$4.402,250
1987-03-27$4.53$4.531,875
1987-03-26$4.40$4.406,938
1987-03-25$4.27$4.272,438
1987-03-24$4.27$4.274,688
1987-03-23$4.40$4.401,500
1987-03-20$4.40$4.403,188
1987-03-19$4.40$4.403,750
1987-03-18$4.00$4.000
1987-03-17$4.00$4.002,438
1987-03-16$4.00$4.009,563
1987-03-13$3.87$3.873,938
1987-03-12$4.00$4.0010,875
1987-03-11$4.27$4.272,438
1987-03-10$4.27$4.273,000
1987-03-09$4.27$4.2711,438
1987-03-06$4.27$4.273,000
1987-03-05$4.27$4.273,938
1987-03-04$4.27$4.276,000
1987-03-03$4.27$4.2711,063
1987-03-02$4.40$4.4011,438
1987-02-27$4.67$4.672,813
1987-02-26$4.67$4.670
1987-02-25$4.67$4.677,688
1987-02-24$4.80$4.80563
1987-02-23$4.67$4.673,188
1987-02-20$4.67$4.675,625
1987-02-19$4.80$4.809,375
1987-02-18$5.07$5.0715,000
1987-02-17$5.47$5.474,125
1987-02-13$5.47$5.4711,813
1987-02-12$5.33$5.3323,063
1987-02-11$4.80$4.809,563
1987-02-10$4.80$4.8013,313
1987-02-09$4.67$4.679,188
1987-02-06$4.67$4.673,750
1987-02-05$4.67$4.677,500
1987-02-04$4.53$4.537,125
1987-02-03$4.53$4.539,188
1987-02-02$4.40$4.407,688
1987-01-30$4.40$4.404,875
1987-01-29$4.40$4.404,313
1987-01-28$4.40$4.401,313
1987-01-27$4.40$4.402,813
1987-01-26$4.40$4.405,438
1987-01-23$4.53$4.5318,750
1987-01-22$4.67$4.6716,313
1987-01-21$4.53$4.53107,625
1987-01-20$5.60$5.6015,375
1987-01-19$5.47$5.4718,000
1987-01-16$5.47$5.4727,750
1987-01-15$5.60$5.6028,313
1987-01-14$5.60$5.6057,188
1987-01-13$5.33$5.3340,875
1987-01-12$4.93$4.936,375
1987-01-09$4.80$4.809,750
1987-01-08$5.20$5.2040,500
1987-01-07$4.53$4.5318,750
1987-01-06$4.13$4.1311,063
1987-01-05$4.00$4.0014,625
1987-01-02$4.00$4.0031,125