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 — 1997

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1997-12-31$7.63$7.63106,600
1997-12-30$7.75$7.7547,100
1997-12-29$7.75$7.7543,400
1997-12-26$7.63$7.637,800
1997-12-24$7.88$7.8811,900
1997-12-23$7.75$7.7571,800
1997-12-22$7.75$7.7532,900
1997-12-19$7.88$7.8837,400
1997-12-18$8.25$8.2539,100
1997-12-17$8.00$8.0057,000
1997-12-16$8.13$8.1361,700
1997-12-15$8.56$8.5658,700
1997-12-12$8.75$8.7527,200
1997-12-11$8.63$8.6324,800
1997-12-10$8.75$8.7519,400
1997-12-09$8.69$8.6928,300
1997-12-08$8.75$8.7554,400
1997-12-05$8.94$8.94138,700
1997-12-04$8.75$8.7584,400
1997-12-03$8.75$8.75114,000
1997-12-02$8.88$8.8865,700
1997-12-01$8.81$8.8181,400
1997-11-28$8.38$8.3826,200
1997-11-26$8.13$8.1324,100
1997-11-25$8.13$8.1316,400
1997-11-24$8.00$8.0061,300
1997-11-21$8.25$8.2526,400
1997-11-20$8.13$8.1314,100
1997-11-19$8.75$8.7517,300
1997-11-18$8.44$8.4418,600
1997-11-17$8.69$8.6911,300
1997-11-14$8.50$8.5010,200
1997-11-13$8.50$8.5040,700
1997-11-12$8.63$8.6326,300
1997-11-11$8.75$8.7528,100
1997-11-10$8.56$8.5616,800
1997-11-07$8.56$8.5636,000
1997-11-06$9.06$9.068,600
1997-11-05$9.19$9.1920,500
1997-11-04$9.25$9.2518,600
1997-11-03$9.25$9.2519,400
1997-10-31$9.00$9.0041,700
1997-10-30$9.00$9.0019,800
1997-10-29$8.50$8.5047,900
1997-10-28$8.25$8.2595,600
1997-10-27$8.25$8.2568,500
1997-10-24$9.19$9.1937,800
1997-10-23$9.19$9.1978,900
1997-10-22$9.69$9.6966,100
1997-10-21$10.13$10.1325,100
1997-10-20$10.00$10.0017,000
1997-10-17$9.75$9.7527,100
1997-10-16$9.63$9.6330,000
1997-10-15$9.69$9.6922,500
1997-10-14$9.63$9.6332,200
1997-10-13$9.53$9.5333,600
1997-10-10$9.63$9.6345,600
1997-10-09$9.63$9.6323,200
1997-10-08$9.88$9.8825,500
1997-10-07$9.88$9.8821,600
1997-10-06$9.63$9.6355,800
1997-10-03$9.63$9.6319,400
1997-10-02$9.69$9.6960,500
1997-10-01$9.75$9.7559,100
1997-09-30$9.88$9.8831,900
1997-09-29$10.00$10.0064,600
1997-09-26$9.88$9.8828,400
1997-09-25$9.56$9.5656,400
1997-09-24$9.88$9.8811,100
1997-09-23$10.00$10.0034,600
1997-09-22$10.00$10.0034,700
1997-09-19$9.75$9.7554,600
1997-09-18$10.06$10.0620,500
1997-09-17$10.25$10.2539,900
1997-09-16$10.00$10.0041,400
1997-09-15$9.94$9.9439,900
1997-09-12$10.00$10.0013,500
1997-09-11$10.00$10.0035,300
1997-09-10$10.13$10.1332,000
1997-09-09$10.31$10.3113,000
1997-09-08$10.50$10.5029,300
1997-09-05$10.75$10.7529,700
1997-09-04$10.63$10.6336,700
1997-09-03$10.44$10.4424,400
1997-09-02$10.56$10.5642,300
1997-08-29$10.25$10.2517,400
1997-08-28$10.75$10.7583,500
1997-08-27$10.88$10.88117,700
1997-08-26$11.06$11.06135,200
1997-08-25$10.25$10.2534,000
1997-08-22$10.19$10.1939,500
1997-08-21$9.88$9.8827,300
1997-08-20$10.63$10.6357,900
1997-08-19$10.25$10.2555,000
1997-08-18$10.00$10.0047,000
1997-08-15$10.38$10.3844,000
1997-08-14$10.69$10.6976,300
1997-08-13$10.63$10.6343,900
1997-08-12$10.75$10.75124,200
1997-08-11$11.13$11.13185,900
1997-08-08$10.13$10.13150,300
1997-08-07$10.13$10.13197,400
1997-08-06$11.25$11.25366,800
1997-08-05$9.63$9.6355,100
1997-08-04$9.25$9.25164,900
1997-08-01$9.00$9.0038,500
1997-07-31$8.63$8.6352,900
1997-07-30$9.13$9.13119,800
1997-07-29$8.69$8.6943,100
1997-07-28$8.63$8.63108,400
1997-07-25$8.50$8.5035,200
1997-07-24$8.13$8.1324,600
1997-07-23$8.50$8.5093,100
1997-07-22$8.00$8.0078,200
1997-07-21$7.88$7.8842,600
1997-07-18$7.50$7.5012,200
1997-07-17$7.56$7.5679,900
1997-07-16$7.88$7.8851,500
1997-07-15$8.19$8.1992,900
1997-07-14$8.56$8.56107,900
1997-07-11$8.19$8.19143,000
1997-07-10$7.50$7.5045,800
1997-07-09$7.13$7.1343,900
1997-07-08$6.38$6.3835,600
1997-07-07$6.25$6.2527,400
1997-07-03$6.13$6.1331,700
1997-07-02$6.13$6.1318,000
1997-07-01$6.25$6.255,100
1997-06-30$6.13$6.1316,500
1997-06-27$6.38$6.3819,400
1997-06-26$6.19$6.1911,700
1997-06-25$6.25$6.258,400
1997-06-24$6.31$6.313,000
1997-06-23$6.50$6.509,100
1997-06-20$6.31$6.3121,200
1997-06-19$6.50$6.5012,800
1997-06-18$6.50$6.5053,300
1997-06-17$6.75$6.7542,800
1997-06-16$6.38$6.3831,100
1997-06-13$6.44$6.4450,000
1997-06-12$6.13$6.139,100
1997-06-11$6.13$6.1334,700
1997-06-10$6.25$6.2516,600
1997-06-09$6.13$6.1323,900
1997-06-06$6.06$6.0664,500
1997-06-05$5.75$5.7569,300
1997-06-04$5.88$5.8817,300
1997-06-03$6.00$6.0011,300
1997-06-02$5.88$5.887,300
1997-05-30$6.25$6.2535,500
1997-05-29$6.00$6.0018,800
1997-05-28$6.38$6.3813,200
1997-05-27$6.13$6.139,400
1997-05-23$6.38$6.3825,700
1997-05-22$6.19$6.1933,500
1997-05-21$6.38$6.3820,100
1997-05-20$6.38$6.3816,800
1997-05-19$6.25$6.2517,200
1997-05-16$6.50$6.508,400
1997-05-15$6.50$6.5033,400
1997-05-14$6.13$6.1317,500
1997-05-13$6.25$6.2521,000
1997-05-12$6.19$6.1916,300
1997-05-09$6.25$6.2521,500
1997-05-08$6.25$6.2524,000
1997-05-07$6.50$6.5032,500
1997-05-06$6.38$6.3816,800
1997-05-05$6.38$6.3821,000
1997-05-02$6.38$6.3846,400
1997-05-01$6.38$6.3811,300
1997-04-30$6.13$6.1327,700
1997-04-29$6.88$6.8810,600
1997-04-28$6.63$6.6334,500
1997-04-25$7.13$7.13155,400
1997-04-24$7.50$7.50225,200
1997-04-23$6.13$6.1334,200
1997-04-22$6.13$6.1315,900
1997-04-21$6.06$6.0622,500
1997-04-18$5.88$5.886,100
1997-04-17$6.00$6.0017,900
1997-04-16$6.00$6.0028,100
1997-04-15$6.13$6.1311,000
1997-04-14$6.25$6.2537,000
1997-04-11$6.50$6.5010,800
1997-04-10$6.50$6.5029,700
1997-04-09$6.25$6.2549,600
1997-04-08$5.75$5.7522,900
1997-04-07$5.50$5.5044,400
1997-04-04$5.75$5.7546,100
1997-04-03$5.50$5.5065,500
1997-04-02$5.25$5.25102,500
1997-04-01$5.63$5.6366,700
1997-03-31$6.13$6.1330,200
1997-03-27$6.25$6.2520,500
1997-03-26$6.50$6.5041,900
1997-03-25$6.50$6.5054,000
1997-03-24$6.38$6.3821,000
1997-03-21$6.63$6.6317,800
1997-03-20$6.75$6.7529,800
1997-03-19$6.88$6.884,100
1997-03-18$6.75$6.7529,300
1997-03-17$7.25$7.2519,600
1997-03-14$7.13$7.136,700
1997-03-13$7.02$7.0225,400
1997-03-12$7.13$7.1321,600
1997-03-11$7.00$7.009,600
1997-03-10$7.25$7.2524,800
1997-03-07$7.00$7.0027,300
1997-03-06$7.13$7.1313,400
1997-03-05$7.25$7.2524,800
1997-03-04$6.75$6.7515,500
1997-03-03$6.63$6.6340,800
1997-02-28$6.63$6.6340,900
1997-02-27$7.00$7.0023,900
1997-02-26$7.13$7.1317,000
1997-02-25$7.00$7.0068,000
1997-02-24$6.63$6.63128,600
1997-02-21$6.38$6.3843,200
1997-02-20$6.88$6.8857,200
1997-02-19$7.00$7.0041,900
1997-02-18$7.25$7.2541,300
1997-02-14$7.38$7.3839,000
1997-02-13$7.63$7.6318,100
1997-02-12$7.69$7.6922,100
1997-02-11$7.63$7.6330,400
1997-02-10$7.75$7.7524,100
1997-02-07$7.75$7.7525,500
1997-02-06$7.88$7.8817,800
1997-02-05$7.75$7.7525,600
1997-02-04$8.00$8.0018,400
1997-02-03$8.25$8.2521,800
1997-01-31$8.50$8.5020,100
1997-01-30$8.38$8.3818,800
1997-01-29$8.25$8.2577,400
1997-01-28$7.88$7.8834,900
1997-01-27$8.00$8.0013,700
1997-01-24$8.00$8.0023,500
1997-01-23$8.00$8.0053,600
1997-01-22$8.50$8.5028,900
1997-01-21$8.88$8.8841,600
1997-01-20$9.00$9.00156,800
1997-01-17$8.50$8.5032,400
1997-01-16$8.13$8.137,400
1997-01-15$8.13$8.1372,800
1997-01-14$8.63$8.6318,000
1997-01-13$8.25$8.2542,600
1997-01-10$7.63$7.6316,400
1997-01-09$7.75$7.7532,600
1997-01-08$7.38$7.3826,800
1997-01-07$7.50$7.5027,800
1997-01-06$7.25$7.2525,100
1997-01-03$7.50$7.5016,300
1997-01-02$7.63$7.6323,500