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 — 1992

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1992-12-31$3.73$3.7337,313
1992-12-30$3.80$3.8029,250
1992-12-29$3.73$3.7312,750
1992-12-28$3.73$3.7325,313
1992-12-24$3.60$3.602,813
1992-12-23$3.80$3.8084,188
1992-12-22$3.93$3.9369,750
1992-12-21$3.73$3.735,625
1992-12-18$3.67$3.6768,813
1992-12-17$3.60$3.6045,938
1992-12-16$3.80$3.8067,875
1992-12-15$4.07$4.0719,688
1992-12-14$4.13$4.137,313
1992-12-11$4.13$4.136,188
1992-12-10$4.13$4.1317,250
1992-12-09$4.00$4.007,125
1992-12-08$4.20$4.2016,125
1992-12-07$4.20$4.2049,688
1992-12-04$4.33$4.3311,438
1992-12-03$4.07$4.0713,875
1992-12-02$4.07$4.074,125
1992-12-01$4.13$4.1325,875
1992-11-30$4.27$4.2710,688
1992-11-27$4.27$4.2719,125
1992-11-25$4.13$4.136,938
1992-11-24$4.00$4.0014,438
1992-11-23$4.07$4.0745,750
1992-11-20$4.07$4.0739,188
1992-11-19$4.27$4.273,750
1992-11-18$4.27$4.2723,438
1992-11-17$4.20$4.207,875
1992-11-16$4.27$4.273,375
1992-11-13$4.33$4.3320,438
1992-11-12$4.33$4.3336,563
1992-11-11$4.33$4.3318,563
1992-11-10$4.07$4.0714,438
1992-11-09$3.93$3.933,000
1992-11-06$3.93$3.933,750
1992-11-05$4.00$4.002,063
1992-11-04$4.07$4.073,375
1992-11-03$3.93$3.9334,688
1992-11-02$3.93$3.9328,125
1992-10-30$3.80$3.8020,625
1992-10-29$3.73$3.7331,500
1992-10-28$3.87$3.8736,750
1992-10-27$4.13$4.136,375
1992-10-26$4.13$4.1323,063
1992-10-23$4.00$4.0036,750
1992-10-22$3.87$3.8716,688
1992-10-21$3.60$3.603,563
1992-10-20$3.73$3.7354,750
1992-10-19$3.67$3.6724,375
1992-10-16$3.73$3.7310,313
1992-10-15$3.93$3.9363,000
1992-10-14$4.00$4.006,000
1992-10-13$4.07$4.0711,625
1992-10-12$4.13$4.1312,563
1992-10-09$4.13$4.1359,813
1992-10-08$4.20$4.203,188
1992-10-07$4.40$4.402,250
1992-10-06$4.27$4.2716,125
1992-10-05$4.33$4.3332,813
1992-10-02$4.53$4.5313,875
1992-10-01$4.47$4.4717,813
1992-09-30$4.53$4.5367,313
1992-09-29$4.40$4.4040,875
1992-09-28$4.80$4.8020,063
1992-09-25$4.87$4.8765,063
1992-09-24$5.13$5.1330,000
1992-09-23$5.00$5.0065,250
1992-09-22$4.93$4.9336,563
1992-09-21$5.00$5.0025,875
1992-09-18$5.07$5.0740,688
1992-09-17$5.00$5.0015,750
1992-09-16$4.93$4.9344,438
1992-09-15$5.13$5.1367,313
1992-09-14$5.13$5.1339,563
1992-09-11$5.27$5.27167,250
1992-09-10$5.00$5.0099,750
1992-09-09$4.73$4.7382,875
1992-09-08$4.53$4.5340,688
1992-09-04$4.47$4.4724,375
1992-09-03$4.27$4.2713,875
1992-09-02$4.27$4.2759,813
1992-09-01$4.13$4.1334,500
1992-08-31$4.20$4.2017,625
1992-08-28$4.13$4.131,500
1992-08-27$4.27$4.274,688
1992-08-26$4.20$4.2024,563
1992-08-25$4.27$4.2769,938
1992-08-24$4.60$4.6033,563
1992-08-21$4.60$4.6020,813
1992-08-20$4.60$4.6015,000
1992-08-19$4.67$4.6732,813
1992-08-18$4.60$4.6015,000
1992-08-17$4.53$4.5372,375
1992-08-14$4.40$4.4053,813
1992-08-13$4.07$4.076,000
1992-08-12$4.07$4.078,250
1992-08-11$4.13$4.1319,875
1992-08-10$4.20$4.2015,375
1992-08-07$4.00$4.0016,125
1992-08-06$3.93$3.9315,188
1992-08-05$3.93$3.9322,500
1992-08-04$4.00$4.004,688
1992-08-03$3.93$3.9337,125
1992-07-31$4.13$4.1326,438
1992-07-30$4.00$4.0028,688
1992-07-29$3.87$3.8738,813
1992-07-28$3.73$3.7324,938
1992-07-27$3.73$3.7339,188
1992-07-24$3.47$3.478,250
1992-07-23$3.33$3.3315,000
1992-07-22$3.27$3.2725,688
1992-07-21$3.33$3.3311,250
1992-07-20$3.27$3.2735,250
1992-07-17$3.40$3.4027,188
1992-07-16$3.33$3.339,000
1992-07-15$3.20$3.207,500
1992-07-14$3.40$3.404,875
1992-07-13$3.40$3.402,250
1992-07-10$3.27$3.2713,875
1992-07-09$3.27$3.2712,938
1992-07-08$3.07$3.078,250
1992-07-07$3.27$3.2724,188
1992-07-06$3.27$3.2724,375
1992-07-02$3.27$3.2726,250
1992-07-01$3.27$3.277,313
1992-06-30$3.33$3.3313,875
1992-06-29$3.27$3.2722,125
1992-06-26$3.07$3.0753,250
1992-06-25$3.20$3.2052,313
1992-06-24$3.33$3.332,250
1992-06-23$3.47$3.478,250
1992-06-22$3.60$3.607,500
1992-06-19$3.33$3.3343,500
1992-06-18$3.33$3.3335,625
1992-06-17$3.53$3.5338,625
1992-06-16$3.73$3.732,438
1992-06-15$4.00$4.0010,313
1992-06-12$3.87$3.8711,250
1992-06-11$3.73$3.732,813
1992-06-10$3.73$3.736,938
1992-06-09$3.80$3.8015,375
1992-06-08$4.00$4.0019,500
1992-06-05$4.00$4.008,438
1992-06-04$4.00$4.0021,188
1992-06-03$4.07$4.0710,125
1992-06-02$4.20$4.2019,688
1992-06-01$4.07$4.0718,188
1992-05-29$3.87$3.873,750
1992-05-28$3.80$3.8018,750
1992-05-27$3.87$3.873,188
1992-05-26$3.87$3.877,313
1992-05-22$3.93$3.938,250
1992-05-21$3.93$3.936,375
1992-05-20$3.93$3.935,625
1992-05-19$3.93$3.9321,000
1992-05-18$4.00$4.006,750
1992-05-15$4.00$4.0018,188
1992-05-14$3.87$3.8712,000
1992-05-13$3.93$3.9323,063
1992-05-12$3.93$3.9318,750
1992-05-11$3.87$3.8721,938
1992-05-08$4.07$4.0737,125
1992-05-07$3.93$3.9323,813
1992-05-06$3.93$3.937,500
1992-05-05$4.00$4.0021,000
1992-05-04$3.87$3.8740,313
1992-05-01$4.07$4.0730,750
1992-04-30$4.27$4.2750,813
1992-04-29$4.40$4.4069,188
1992-04-28$4.13$4.1323,250
1992-04-27$4.13$4.1359,250
1992-04-24$4.40$4.40199,313
1992-04-23$4.07$4.0740,500
1992-04-22$3.80$3.8046,125
1992-04-21$3.67$3.6740,313
1992-04-20$3.80$3.808,625
1992-04-16$3.80$3.8013,125
1992-04-15$3.87$3.8714,813
1992-04-14$3.87$3.8724,563
1992-04-13$4.07$4.0721,188
1992-04-10$3.87$3.8715,750
1992-04-09$3.87$3.8731,313
1992-04-08$3.73$3.7330,563
1992-04-07$3.93$3.9321,188
1992-04-06$4.00$4.0011,438
1992-04-03$3.93$3.9313,313
1992-04-02$4.00$4.0048,563
1992-04-01$3.93$3.938,813
1992-03-31$4.00$4.0037,500
1992-03-30$4.00$4.0035,813
1992-03-27$3.87$3.8725,875
1992-03-26$4.00$4.0027,188
1992-03-25$3.93$3.9369,000
1992-03-24$3.87$3.8731,313
1992-03-23$4.07$4.0720,063
1992-03-20$4.07$4.0717,625
1992-03-19$4.07$4.0733,563
1992-03-18$4.27$4.2715,375
1992-03-17$4.33$4.334,125
1992-03-16$4.27$4.2756,438
1992-03-13$4.60$4.6038,063
1992-03-12$4.60$4.6038,625
1992-03-11$4.73$4.7377,813
1992-03-10$4.40$4.4048,000
1992-03-09$4.73$4.7350,250
1992-03-06$4.00$4.0042,375
1992-03-05$3.87$3.8744,250
1992-03-04$4.27$4.2724,188
1992-03-03$4.27$4.276,375
1992-03-02$4.27$4.2712,938
1992-02-28$4.20$4.2039,188
1992-02-27$4.07$4.0741,813
1992-02-26$3.93$3.9310,500
1992-02-25$3.73$3.7316,688
1992-02-24$3.87$3.8722,875
1992-02-21$3.87$3.8734,313
1992-02-20$3.67$3.6734,688
1992-02-19$3.87$3.8719,688
1992-02-18$4.07$4.0731,875
1992-02-14$4.20$4.2021,188
1992-02-13$4.27$4.2727,000
1992-02-12$4.40$4.4057,188
1992-02-11$4.67$4.6734,688
1992-02-10$4.67$4.6745,188
1992-02-07$4.67$4.6751,375
1992-02-06$4.60$4.6034,125
1992-02-05$4.40$4.4061,313
1992-02-04$4.40$4.4024,188
1992-02-03$4.40$4.4031,313
1992-01-31$4.47$4.4763,000
1992-01-30$4.53$4.5354,750
1992-01-29$4.40$4.40104,063
1992-01-28$4.67$4.6718,188
1992-01-27$4.67$4.6782,500
1992-01-24$4.60$4.6066,000
1992-01-23$4.40$4.4075,938
1992-01-22$4.27$4.27129,563
1992-01-21$3.93$3.9358,500
1992-01-20$3.80$3.8028,313
1992-01-17$3.87$3.87103,875
1992-01-16$3.87$3.8772,000
1992-01-15$3.87$3.87161,063
1992-01-14$3.40$3.4070,313
1992-01-13$3.27$3.2734,875
1992-01-10$3.47$3.4722,125
1992-01-09$3.40$3.4044,813
1992-01-08$3.73$3.7341,250
1992-01-07$3.67$3.6765,813
1992-01-06$4.00$4.0042,563
1992-01-03$3.73$3.73102,563
1992-01-02$3.40$3.4039,375