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.

View year

Historical Stock Price — 2015

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2015-12-31$5.21$5.2154,300
2015-12-30$5.24$5.2434,900
2015-12-29$5.36$5.3624,300
2015-12-28$5.33$5.3363,000
2015-12-24$5.21$5.2118,900
2015-12-23$5.14$5.1419,800
2015-12-22$5.01$5.0116,900
2015-12-21$5.00$5.0014,000
2015-12-18$4.91$4.9124,900
2015-12-17$4.85$4.8531,600
2015-12-16$4.71$4.7132,700
2015-12-15$4.57$4.5770,000
2015-12-14$4.54$4.5426,000
2015-12-11$4.70$4.7033,500
2015-12-10$4.74$4.7434,100
2015-12-09$4.81$4.8138,200
2015-12-08$4.90$4.9014,000
2015-12-07$4.96$4.9637,000
2015-12-04$4.86$4.8621,200
2015-12-03$4.77$4.7734,500
2015-12-02$4.87$4.8726,300
2015-12-01$4.97$4.9717,000
2015-11-30$5.02$5.0222,800
2015-11-27$4.94$4.9417,600
2015-11-25$5.00$5.00148,800
2015-11-24$5.04$5.0449,200
2015-11-23$4.92$4.9233,200
2015-11-20$4.91$4.9162,500
2015-11-19$4.86$4.8630,800
2015-11-18$4.90$4.9027,400
2015-11-17$4.90$4.9048,100
2015-11-16$4.81$4.8156,600
2015-11-13$4.84$4.8436,400
2015-11-12$4.86$4.8622,300
2015-11-11$4.90$4.9015,500
2015-11-10$4.90$4.9063,200
2015-11-09$4.93$4.9320,900
2015-11-06$5.01$5.0129,800
2015-11-05$5.03$5.0333,700
2015-11-04$5.05$5.0538,600
2015-11-03$5.05$5.0511,400
2015-11-02$5.01$5.0128,900
2015-10-30$5.03$5.038,700
2015-10-29$5.02$5.028,600
2015-10-28$5.03$5.0348,500
2015-10-27$5.01$5.0163,400
2015-10-26$5.20$5.2038,000
2015-10-23$5.27$5.2724,500
2015-10-22$5.19$5.1917,400
2015-10-21$5.14$5.1419,500
2015-10-20$5.13$5.1310,700
2015-10-19$5.21$5.215,500
2015-10-16$5.18$5.1823,800
2015-10-15$5.27$5.2720,500
2015-10-14$5.16$5.1610,100
2015-10-13$5.27$5.279,900
2015-10-12$5.23$5.2321,700
2015-10-09$5.35$5.3511,400
2015-10-08$5.25$5.2513,900
2015-10-07$5.27$5.2714,300
2015-10-06$5.25$5.259,700
2015-10-05$5.09$5.0931,800
2015-10-02$5.08$5.0811,800
2015-10-01$5.04$5.0419,800
2015-09-30$5.07$5.078,500
2015-09-29$5.02$5.0237,800
2015-09-28$4.98$4.9864,500
2015-09-25$5.18$5.1817,100
2015-09-24$5.14$5.1414,100
2015-09-23$5.27$5.276,700
2015-09-22$5.28$5.2817,300
2015-09-21$5.34$5.3426,600
2015-09-18$5.29$5.2951,800
2015-09-17$5.21$5.2120,300
2015-09-16$5.12$5.1212,300
2015-09-15$5.09$5.0920,700
2015-09-14$5.06$5.0618,000
2015-09-11$5.11$5.1168,100
2015-09-10$5.14$5.1434,500
2015-09-09$5.29$5.2936,700
2015-09-08$5.34$5.3447,100
2015-09-04$5.38$5.3825,500
2015-09-03$5.30$5.3030,300
2015-09-02$5.09$5.0918,400
2015-09-01$5.16$5.1622,600
2015-08-31$5.32$5.3221,400
2015-08-28$5.27$5.2723,600
2015-08-27$5.26$5.2615,500
2015-08-26$5.16$5.1622,300
2015-08-25$5.08$5.0825,700
2015-08-24$4.91$4.9175,700
2015-08-21$5.00$5.0071,000
2015-08-20$5.19$5.1951,300
2015-08-19$5.42$5.4225,500
2015-08-18$5.58$5.5821,700
2015-08-17$5.43$5.4315,100
2015-08-14$5.40$5.403,300
2015-08-13$5.35$5.357,600
2015-08-12$5.29$5.2925,600
2015-08-11$5.16$5.1651,800
2015-08-10$5.26$5.2630,800
2015-08-07$5.37$5.3722,800
2015-08-06$5.46$5.4616,700
2015-08-05$5.62$5.6231,300
2015-08-04$5.66$5.66110,100
2015-08-03$5.19$5.1919,900
2015-07-31$5.15$5.157,900
2015-07-30$5.12$5.1222,200
2015-07-29$5.05$5.0533,600
2015-07-28$5.10$5.1013,000
2015-07-27$5.21$5.2175,100
2015-07-24$5.33$5.3346,700
2015-07-23$5.52$5.524,900
2015-07-22$5.48$5.4810,300
2015-07-21$5.39$5.3914,000
2015-07-20$5.45$5.4515,600
2015-07-17$5.53$5.5325,500
2015-07-16$5.58$5.5816,300
2015-07-15$5.58$5.589,100
2015-07-14$5.62$5.6216,200
2015-07-13$5.53$5.5332,500
2015-07-10$5.63$5.6312,100
2015-07-09$5.61$5.6125,800
2015-07-08$5.61$5.6135,900
2015-07-07$5.51$5.5127,700
2015-07-06$5.50$5.5043,500
2015-07-02$5.46$5.4618,600
2015-07-01$5.41$5.41346,700
2015-06-30$5.34$5.3445,600
2015-06-29$5.37$5.3734,500
2015-06-26$5.50$5.5027,300
2015-06-25$5.74$5.7418,600
2015-06-24$5.75$5.7537,900
2015-06-23$5.75$5.7516,700
2015-06-22$5.76$5.7625,000
2015-06-19$5.78$5.7821,600
2015-06-18$5.83$5.8322,300
2015-06-17$5.78$5.7810,100
2015-06-16$5.69$5.6911,600
2015-06-15$5.84$5.8417,100
2015-06-12$5.86$5.8621,700
2015-06-11$5.67$5.6718,200
2015-06-10$5.67$5.6731,500
2015-06-09$5.64$5.6450,100
2015-06-08$5.69$5.6935,700
2015-06-05$5.66$5.6626,500
2015-06-04$5.56$5.5612,100
2015-06-03$5.62$5.628,100
2015-06-02$5.56$5.5650,900
2015-06-01$5.50$5.50110,900
2015-05-29$5.90$5.9049,800
2015-05-28$5.90$5.9015,000
2015-05-27$5.92$5.9298,300
2015-05-26$5.92$5.9226,300
2015-05-22$5.99$5.9978,100
2015-05-21$6.00$6.0048,100
2015-05-20$6.08$6.0855,300
2015-05-19$6.18$6.1851,400
2015-05-18$6.24$6.2488,400
2015-05-15$6.24$6.2445,100
2015-05-14$6.17$6.1743,300
2015-05-13$6.11$6.1184,900
2015-05-12$6.18$6.1868,900
2015-05-11$6.05$6.0565,300
2015-05-08$5.85$5.8513,200
2015-05-07$5.78$5.7845,300
2015-05-06$5.67$5.6736,700
2015-05-05$5.73$5.7337,300
2015-05-04$5.81$5.8128,800
2015-05-01$5.74$5.7434,300
2015-04-30$5.67$5.6763,400
2015-04-29$5.83$5.8377,900
2015-04-28$5.85$5.8552,100
2015-04-27$5.97$5.9737,900
2015-04-24$6.09$6.09124,200
2015-04-23$6.20$6.2055,100
2015-04-22$6.30$6.30181,500
2015-04-21$6.30$6.3031,500
2015-04-20$6.31$6.3169,900
2015-04-17$6.32$6.3228,900
2015-04-16$6.31$6.3191,200
2015-04-15$6.30$6.3087,000
2015-04-14$6.22$6.22192,500
2015-04-13$5.99$5.99105,200
2015-04-10$5.89$5.8930,200
2015-04-09$5.91$5.9158,200
2015-04-08$5.84$5.8460,300
2015-04-07$5.81$5.8153,400
2015-04-06$5.71$5.71178,000
2015-04-02$5.91$5.91146,800
2015-04-01$6.05$6.05206,600
2015-03-31$6.10$6.10750,900
2015-03-30$6.53$6.531,495,200
2015-03-27$5.19$5.1937,400
2015-03-26$5.08$5.0829,700
2015-03-25$5.16$5.1626,600
2015-03-24$5.25$5.2534,400
2015-03-23$5.30$5.3038,400
2015-03-20$5.23$5.2323,200
2015-03-19$5.29$5.2951,100
2015-03-18$5.38$5.3821,600
2015-03-17$5.30$5.3063,700
2015-03-16$5.48$5.4828,700
2015-03-13$5.42$5.4238,900
2015-03-12$5.31$5.3135,500
2015-03-11$5.25$5.2536,400
2015-03-10$5.26$5.2617,800
2015-03-09$5.26$5.2624,300
2015-03-06$5.37$5.3715,600
2015-03-05$5.32$5.3212,400
2015-03-04$5.28$5.2848,700
2015-03-03$5.33$5.3317,900
2015-03-02$5.33$5.3348,800
2015-02-27$5.42$5.4241,700
2015-02-26$5.50$5.5046,900
2015-02-25$5.58$5.5863,000
2015-02-24$5.54$5.5481,800
2015-02-23$5.12$5.1262,500
2015-02-20$5.07$5.0731,900
2015-02-19$5.05$5.0515,400
2015-02-18$5.06$5.069,900
2015-02-17$5.08$5.0820,600
2015-02-13$5.06$5.0613,200
2015-02-12$5.04$5.0418,000
2015-02-11$5.13$5.1312,100
2015-02-10$5.09$5.0926,200
2015-02-09$5.04$5.0430,000
2015-02-06$5.05$5.059,300
2015-02-05$5.03$5.0322,600
2015-02-04$5.01$5.0114,900
2015-02-03$5.04$5.046,900
2015-02-02$5.01$5.017,200
2015-01-30$5.03$5.0310,800
2015-01-29$5.04$5.0418,700
2015-01-28$5.04$5.049,900
2015-01-27$5.09$5.096,600
2015-01-26$5.05$5.0523,800
2015-01-23$4.95$4.9532,600
2015-01-22$5.00$5.0030,200
2015-01-21$5.03$5.0332,300
2015-01-20$5.08$5.0824,700
2015-01-16$5.00$5.0018,900
2015-01-15$5.01$5.0129,700
2015-01-14$5.08$5.0819,300
2015-01-13$5.14$5.1417,600
2015-01-12$5.14$5.1410,500
2015-01-09$5.08$5.0811,300
2015-01-08$5.03$5.0320,000
2015-01-07$4.97$4.977,500
2015-01-06$5.01$5.0153,800
2015-01-05$5.12$5.1229,500
2015-01-02$5.13$5.1317,600