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 — 1990

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1990-12-31$1.07$1.074,313
1990-12-28$1.07$1.0719,500
1990-12-27$1.07$1.073,938
1990-12-26$1.07$1.0711,813
1990-12-24$1.07$1.071,688
1990-12-21$1.07$1.07938
1990-12-20$1.07$1.072,625
1990-12-19$1.07$1.073,750
1990-12-18$1.07$1.0710,688
1990-12-17$1.07$1.07563
1990-12-14$1.07$1.073,188
1990-12-13$1.07$1.07375
1990-12-12$1.07$1.071,875
1990-12-11$1.00$1.0023,063
1990-12-10$1.00$1.0035,813
1990-12-07$1.00$1.00563
1990-12-06$0.93$0.932,625
1990-12-05$0.93$0.939,375
1990-12-04$1.00$1.0010,313
1990-12-03$1.07$1.071,875
1990-11-30$1.07$1.072,063
1990-11-29$1.07$1.079,938
1990-11-28$1.07$1.072,250
1990-11-27$1.07$1.0711,063
1990-11-26$1.07$1.07938
1990-11-23$1.07$1.07188
1990-11-21$1.07$1.07938
1990-11-20$1.07$1.0713,688
1990-11-19$1.07$1.070
1990-11-16$1.07$1.07938
1990-11-15$1.07$1.07750
1990-11-14$1.07$1.071,313
1990-11-13$1.07$1.074,875
1990-11-12$1.07$1.078,063
1990-11-09$1.07$1.072,250
1990-11-08$1.07$1.07375
1990-11-07$1.07$1.075,063
1990-11-06$1.07$1.071,125
1990-11-05$1.07$1.07938
1990-11-02$1.07$1.077,688
1990-11-01$1.07$1.07375
1990-10-31$1.07$1.073,750
1990-10-30$1.07$1.073,000
1990-10-29$1.07$1.0720,813
1990-10-26$1.07$1.079,375
1990-10-25$1.07$1.075,250
1990-10-24$1.07$1.077,500
1990-10-23$1.07$1.075,813
1990-10-22$1.07$1.07188
1990-10-19$1.07$1.07563
1990-10-18$1.07$1.071,688
1990-10-17$1.07$1.072,813
1990-10-16$1.07$1.077,125
1990-10-15$1.07$1.071,875
1990-10-12$1.07$1.074,125
1990-10-11$1.07$1.070
1990-10-10$1.07$1.07750
1990-10-09$1.07$1.074,688
1990-10-08$1.07$1.075,625
1990-10-05$1.07$1.076,563
1990-10-04$1.07$1.078,063
1990-10-03$1.07$1.0710,313
1990-10-02$1.07$1.0724,938
1990-10-01$1.00$1.00375
1990-09-28$1.00$1.0021,375
1990-09-27$0.80$0.8020,250
1990-09-26$0.80$0.8036,938
1990-09-25$1.07$1.077,875
1990-09-24$1.07$1.0713,313
1990-09-21$1.20$1.2047,813
1990-09-20$1.33$1.3313,313
1990-09-19$1.40$1.4011,625
1990-09-18$1.40$1.401,500
1990-09-17$1.40$1.404,688
1990-09-14$1.40$1.406,750
1990-09-13$1.40$1.40938
1990-09-12$1.40$1.403,750
1990-09-11$1.40$1.40938
1990-09-10$1.47$1.472,438
1990-09-07$1.47$1.4713,500
1990-09-06$1.33$1.331,875
1990-09-05$1.33$1.334,500
1990-09-04$1.33$1.331,500
1990-08-31$1.47$1.475,625
1990-08-30$1.47$1.471,875
1990-08-29$1.47$1.4711,250
1990-08-28$1.53$1.5313,125
1990-08-27$1.40$1.4013,125
1990-08-24$1.33$1.3310,500
1990-08-23$1.33$1.33938
1990-08-22$1.33$1.332,063
1990-08-21$1.33$1.339,563
1990-08-20$1.33$1.331,875
1990-08-17$1.33$1.333,938
1990-08-16$1.47$1.47938
1990-08-15$1.47$1.471,875
1990-08-14$1.47$1.475,625
1990-08-13$1.47$1.471,875
1990-08-10$1.47$1.477,500
1990-08-09$1.47$1.470
1990-08-08$1.47$1.472,438
1990-08-07$1.47$1.479,750
1990-08-06$1.47$1.471,313
1990-08-03$1.47$1.4719,313
1990-08-02$1.60$1.603,188
1990-08-01$1.73$1.736,563
1990-07-31$1.73$1.739,938
1990-07-30$1.60$1.6012,000
1990-07-27$1.73$1.734,688
1990-07-26$1.73$1.73188
1990-07-25$1.73$1.731,875
1990-07-24$1.73$1.731,313
1990-07-23$1.73$1.73375
1990-07-20$1.73$1.739,938
1990-07-19$1.73$1.738,813
1990-07-18$1.73$1.733,563
1990-07-17$1.73$1.7313,313
1990-07-16$1.73$1.73188
1990-07-13$1.73$1.73188
1990-07-12$1.73$1.733,000
1990-07-11$1.73$1.731,875
1990-07-10$1.73$1.73188
1990-07-09$1.73$1.731,313
1990-07-06$1.73$1.734,688
1990-07-05$1.60$1.609,563
1990-07-03$1.60$1.60750
1990-07-02$1.60$1.600
1990-06-29$1.60$1.602,813
1990-06-28$1.67$1.672,063
1990-06-27$1.67$1.675,625
1990-06-26$1.67$1.6710,875
1990-06-25$1.73$1.733,938
1990-06-22$1.73$1.731,875
1990-06-21$1.73$1.731,875
1990-06-20$1.73$1.738,438
1990-06-19$1.73$1.733,750
1990-06-18$1.73$1.733,750
1990-06-15$1.73$1.73563
1990-06-14$1.73$1.7313,125
1990-06-13$1.73$1.7314,063
1990-06-12$1.73$1.73563
1990-06-11$1.73$1.732,063
1990-06-08$1.73$1.7313,125
1990-06-07$1.73$1.7310,313
1990-06-06$1.93$1.937,875
1990-06-05$2.00$2.00750
1990-06-04$2.00$2.00750
1990-06-01$2.00$2.0024,375
1990-05-31$2.07$2.075,625
1990-05-30$2.07$2.072,250
1990-05-29$2.07$2.07938
1990-05-25$2.00$2.004,313
1990-05-24$2.07$2.07188
1990-05-23$2.07$2.071,688
1990-05-22$2.07$2.071,875
1990-05-21$2.00$2.000
1990-05-18$2.00$2.00188
1990-05-17$2.00$2.003,000
1990-05-16$2.00$2.00188
1990-05-15$2.00$2.003,938
1990-05-14$2.13$2.138,063
1990-05-11$2.20$2.200
1990-05-10$2.20$2.20938
1990-05-09$2.20$2.202,813
1990-05-08$2.13$2.133,750
1990-05-07$2.13$2.13375
1990-05-04$2.13$2.131,500
1990-05-03$2.13$2.131,125
1990-05-02$2.20$2.204,875
1990-05-01$2.13$2.13375
1990-04-30$2.07$2.07188
1990-04-27$2.07$2.070
1990-04-26$2.07$2.070
1990-04-25$2.07$2.0717,250
1990-04-24$2.27$2.27938
1990-04-23$2.27$2.270
1990-04-20$2.27$2.27750
1990-04-19$2.27$2.270
1990-04-18$2.27$2.275,625
1990-04-17$2.27$2.273,563
1990-04-16$2.27$2.272,438
1990-04-12$2.13$2.130
1990-04-11$2.13$2.133,750
1990-04-10$2.13$2.130
1990-04-09$2.13$2.131,313
1990-04-06$2.13$2.131,875
1990-04-05$2.07$2.070
1990-04-04$2.07$2.07375
1990-04-03$2.07$2.073,750
1990-04-02$2.13$2.130
1990-03-30$2.13$2.131,875
1990-03-29$2.13$2.139,375
1990-03-28$2.27$2.276,563
1990-03-27$2.20$2.202,063
1990-03-26$2.20$2.206,188
1990-03-23$2.00$2.003,563
1990-03-22$2.00$2.008,625
1990-03-21$2.00$2.002,438
1990-03-20$2.00$2.004,500
1990-03-19$2.00$2.000
1990-03-16$2.00$2.000
1990-03-15$2.00$2.003,750
1990-03-14$2.00$2.008,438
1990-03-13$2.00$2.003,000
1990-03-12$2.07$2.072,438
1990-03-09$2.07$2.079,938
1990-03-08$2.00$2.001,125
1990-03-07$2.00$2.002,063
1990-03-06$2.00$2.0012,000
1990-03-05$2.07$2.078,250
1990-03-02$2.13$2.135,625
1990-03-01$2.07$2.0720,813
1990-02-28$2.00$2.003,000
1990-02-27$2.00$2.003,750
1990-02-26$1.87$1.874,125
1990-02-23$1.87$1.872,250
1990-02-22$1.87$1.875,063
1990-02-21$1.87$1.872,813
1990-02-20$1.87$1.874,688
1990-02-16$1.87$1.87188
1990-02-15$1.87$1.873,750
1990-02-14$1.87$1.87938
1990-02-13$1.87$1.87563
1990-02-12$1.87$1.877,125
1990-02-09$1.80$1.801,125
1990-02-08$1.80$1.802,625
1990-02-07$1.80$1.8023,250
1990-02-06$1.80$1.800
1990-02-05$1.80$1.8012,750
1990-02-02$1.80$1.806,000
1990-02-01$1.73$1.731,500
1990-01-31$1.67$1.671,125
1990-01-30$1.67$1.6732,813
1990-01-29$1.73$1.734,875
1990-01-26$1.80$1.800
1990-01-25$1.80$1.801,875
1990-01-24$1.80$1.8011,625
1990-01-23$1.87$1.870
1990-01-22$1.87$1.874,500
1990-01-19$1.87$1.8712,188
1990-01-18$1.73$1.733,375
1990-01-17$1.73$1.733,750
1990-01-16$1.73$1.734,500
1990-01-15$1.73$1.731,313
1990-01-12$1.73$1.732,813
1990-01-11$1.80$1.802,250
1990-01-10$1.80$1.8025,313
1990-01-09$1.87$1.870
1990-01-08$1.87$1.871,875
1990-01-05$1.87$1.874,688
1990-01-04$1.93$1.9330,750
1990-01-03$2.07$2.076,375
1990-01-02$1.87$1.8743,688