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 — 1986

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1986-12-31$3.60$3.6053,625
1986-12-30$2.53$2.535,625
1986-12-29$2.53$2.535,625
1986-12-26$2.67$2.679,375
1986-12-24$2.67$2.670
1986-12-23$2.67$2.671,875
1986-12-22$2.67$2.673,938
1986-12-19$2.67$2.679,000
1986-12-18$2.67$2.6714,438
1986-12-17$2.53$2.53188
1986-12-16$2.53$2.533,938
1986-12-15$2.67$2.673,563
1986-12-12$2.67$2.672,438
1986-12-11$2.67$2.675,625
1986-12-10$2.67$2.673,188
1986-12-09$2.67$2.67375
1986-12-08$2.67$2.676,563
1986-12-05$2.67$2.671,688
1986-12-04$2.67$2.678,250
1986-12-03$2.67$2.6712,563
1986-12-02$2.80$2.806,750
1986-12-01$2.67$2.670
1986-11-28$2.67$2.673,188
1986-11-26$2.67$2.676,938
1986-11-25$2.80$2.80188
1986-11-24$2.80$2.803,938
1986-11-21$2.80$2.801,500
1986-11-20$2.80$2.802,813
1986-11-19$2.80$2.802,250
1986-11-18$2.80$2.800
1986-11-17$2.80$2.806,000
1986-11-14$2.80$2.801,313
1986-11-13$2.80$2.803,375
1986-11-12$2.80$2.8013,125
1986-11-11$2.80$2.80375
1986-11-10$2.80$2.807,688
1986-11-07$2.80$2.800
1986-11-06$2.80$2.800
1986-11-05$2.80$2.808,250
1986-11-04$2.93$2.931,875
1986-11-03$2.93$2.933,750
1986-10-31$2.93$2.9318,750
1986-10-30$3.07$3.0715,375
1986-10-29$3.47$3.478,063
1986-10-28$3.60$3.6014,063
1986-10-27$3.60$3.602,625
1986-10-24$3.60$3.603,750
1986-10-23$3.60$3.601,688
1986-10-22$3.60$3.604,313
1986-10-21$3.47$3.47750
1986-10-20$3.47$3.4710,500
1986-10-17$3.73$3.738,250
1986-10-16$3.73$3.734,313
1986-10-15$3.73$3.734,313
1986-10-14$3.73$3.733,750
1986-10-13$3.73$3.730
1986-10-10$3.73$3.731,875
1986-10-09$3.73$3.731,875
1986-10-08$3.73$3.736,000
1986-10-07$3.73$3.736,000
1986-10-06$3.60$3.6011,438
1986-10-03$3.73$3.732,438
1986-10-02$3.87$3.8711,438
1986-10-01$4.00$4.003,563
1986-09-30$4.00$4.0019,875
1986-09-29$3.47$3.478,250
1986-09-26$3.20$3.204,688
1986-09-25$3.20$3.209,000
1986-09-24$3.07$3.073,188
1986-09-23$3.07$3.075,813
1986-09-22$2.93$2.938,438
1986-09-19$2.93$2.9313,500
1986-09-18$2.80$2.8013,125
1986-09-17$2.93$2.937,688
1986-09-16$2.93$2.9316,500
1986-09-15$2.80$2.805,813
1986-09-12$2.67$2.6715,375
1986-09-11$2.93$2.9311,438
1986-09-10$3.00$3.008,813
1986-09-09$2.93$2.934,500
1986-09-08$3.00$3.002,625
1986-09-05$3.07$3.0714,250
1986-09-04$3.20$3.2015,938
1986-09-03$3.20$3.2012,938
1986-09-02$3.47$3.4711,063
1986-08-29$3.33$3.3315,000
1986-08-28$3.00$3.0032,813
1986-08-27$2.67$2.6721,375
1986-08-26$2.80$2.809,563
1986-08-25$3.00$3.0010,875
1986-08-22$3.07$3.076,563
1986-08-21$3.13$3.138,063
1986-08-20$3.20$3.207,125
1986-08-19$3.20$3.205,813
1986-08-18$3.20$3.202,438
1986-08-15$3.20$3.206,000
1986-08-14$3.20$3.201,500
1986-08-13$3.20$3.201,313
1986-08-12$3.20$3.2017,438
1986-08-11$3.60$3.603,750
1986-08-08$3.73$3.731,125
1986-08-07$3.73$3.731,313
1986-08-06$3.73$3.731,875
1986-08-05$3.73$3.736,563
1986-08-04$3.60$3.606,188
1986-08-01$3.60$3.6017,250
1986-07-31$4.00$4.0013,875
1986-07-30$4.27$4.2710,313
1986-07-29$4.27$4.2712,938
1986-07-28$4.53$4.5316,125
1986-07-25$4.53$4.537,125
1986-07-24$4.53$4.5311,063
1986-07-23$4.53$4.5336,938
1986-07-22$4.27$4.2724,188
1986-07-21$4.27$4.277,875
1986-07-18$4.27$4.2748,375
1986-07-17$4.80$4.8025,313
1986-07-16$5.07$5.0715,750
1986-07-15$5.07$5.0725,125
1986-07-14$5.33$5.3379,688
1986-07-11$5.47$5.4794,125
1986-07-10$4.53$4.5334,500
1986-07-09$4.27$4.2745,750
1986-07-08$4.13$4.13132,938