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 — 2001

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2001-12-31$16.76$16.7669,300
2001-12-28$17.60$17.6022,500
2001-12-27$18.15$18.1527,800
2001-12-26$18.00$18.0049,800
2001-12-24$17.18$17.1833,100
2001-12-21$16.55$16.5591,800
2001-12-20$14.44$14.4434,800
2001-12-19$14.15$14.1531,500
2001-12-18$14.40$14.4065,100
2001-12-17$13.95$13.95101,400
2001-12-14$15.05$15.0523,100
2001-12-13$15.39$15.3927,100
2001-12-12$15.90$15.9031,200
2001-12-11$16.15$16.1529,100
2001-12-10$16.30$16.3016,400
2001-12-07$16.60$16.6016,900
2001-12-06$17.00$17.0034,200
2001-12-05$17.71$17.7124,600
2001-12-04$17.80$17.8093,500
2001-12-03$17.29$17.2940,400
2001-11-30$16.92$16.9228,100
2001-11-29$17.95$17.9528,400
2001-11-28$17.46$17.4616,200
2001-11-27$17.30$17.3014,200
2001-11-26$18.00$18.0034,300
2001-11-23$16.48$16.4812,200
2001-11-21$16.45$16.4532,400
2001-11-20$17.09$17.0914,500
2001-11-19$17.50$17.5024,600
2001-11-16$17.55$17.5516,200
2001-11-15$17.99$17.9933,300
2001-11-14$18.07$18.0725,700
2001-11-13$18.25$18.2515,500
2001-11-12$18.20$18.2027,600
2001-11-09$18.25$18.2528,100
2001-11-08$18.49$18.4938,900
2001-11-07$18.30$18.3038,600
2001-11-06$18.23$18.239,400
2001-11-05$18.10$18.1042,500
2001-11-02$17.65$17.6520,400
2001-11-01$18.20$18.2019,000
2001-10-31$17.81$17.8126,800
2001-10-30$17.56$17.5611,900
2001-10-29$17.81$17.8125,800
2001-10-26$17.91$17.9125,900
2001-10-25$18.00$18.0025,600
2001-10-24$17.50$17.5017,800
2001-10-23$18.06$18.0617,700
2001-10-22$18.00$18.0040,100
2001-10-19$17.39$17.3938,200
2001-10-18$17.29$17.2919,200
2001-10-17$17.85$17.85118,800
2001-10-16$18.32$18.32163,300
2001-10-15$17.71$17.7156,100
2001-10-12$17.30$17.3039,500
2001-10-11$18.24$18.2450,900
2001-10-10$17.05$17.0561,600
2001-10-09$17.25$17.2542,200
2001-10-08$17.37$17.3744,400
2001-10-05$18.42$18.42149,200
2001-10-04$18.31$18.31201,800
2001-10-03$16.39$16.3947,900
2001-10-02$15.25$15.2539,500
2001-10-01$15.05$15.0572,200
2001-09-28$16.25$16.2594,500
2001-09-27$14.44$14.4489,000
2001-09-26$14.44$14.4470,500
2001-09-25$13.86$13.86126,700
2001-09-24$11.65$11.65106,000
2001-09-21$10.00$10.00254,600
2001-09-20$11.20$11.20142,500
2001-09-19$13.49$13.49141,600
2001-09-18$14.67$14.6753,200
2001-09-17$14.41$14.41107,400
2001-09-10$16.00$16.00120,700
2001-09-07$15.21$15.21142,600
2001-09-06$14.90$14.90223,500
2001-09-05$16.88$16.88137,200
2001-09-04$19.00$19.0077,800
2001-08-31$19.50$19.5022,200
2001-08-30$19.50$19.5050,500
2001-08-29$20.50$20.5025,100
2001-08-28$19.60$19.6047,500
2001-08-27$19.70$19.7064,500
2001-08-24$19.54$19.54138,600
2001-08-23$19.00$19.00107,400
2001-08-22$20.80$20.8055,000
2001-08-21$20.67$20.6728,600
2001-08-20$21.95$21.9514,800
2001-08-17$21.90$21.9034,400
2001-08-16$22.23$22.23138,100
2001-08-15$21.31$21.31117,900
2001-08-14$20.45$20.4549,400
2001-08-13$21.05$21.05187,700
2001-08-10$21.04$21.04219,500
2001-08-09$22.05$22.05115,400
2001-08-08$24.81$24.8147,200
2001-08-07$25.55$25.5526,200
2001-08-06$25.59$25.5935,100
2001-08-03$25.96$25.9653,200
2001-08-02$26.25$26.2558,600
2001-08-01$26.75$26.7525,300
2001-07-31$26.00$26.0036,200
2001-07-30$26.49$26.4941,800
2001-07-27$25.99$25.99167,700
2001-07-26$26.38$26.3839,900
2001-07-25$26.40$26.4030,800
2001-07-24$26.55$26.5544,300
2001-07-23$27.11$27.11138,800
2001-07-20$28.28$28.28138,800
2001-07-19$25.98$25.9831,900
2001-07-18$25.51$25.5140,300
2001-07-17$26.85$26.8546,400
2001-07-16$26.16$26.1669,000
2001-07-13$26.00$26.0065,000
2001-07-12$27.40$27.4086,200
2001-07-11$27.57$27.5768,300
2001-07-10$27.56$27.5656,500
2001-07-09$27.79$27.7998,700
2001-07-06$26.24$26.2448,800
2001-07-05$26.75$26.7560,900
2001-07-03$28.25$28.2558,200
2001-07-02$28.25$28.25151,100
2001-06-29$27.00$27.0064,900
2001-06-28$25.00$25.0094,800
2001-06-27$24.90$24.9072,000
2001-06-26$24.85$24.85123,500
2001-06-25$23.73$23.7349,100
2001-06-22$22.60$22.6048,900
2001-06-21$23.86$23.8657,600
2001-06-20$23.65$23.6571,700
2001-06-19$22.14$22.14125,300
2001-06-18$22.73$22.73278,900
2001-06-15$24.38$24.38186,400
2001-06-14$27.90$27.90207,000
2001-06-13$24.11$24.1189,400
2001-06-12$25.56$25.5676,400
2001-06-11$23.90$23.9045,000
2001-06-08$23.65$23.6521,600
2001-06-07$24.00$24.00140,200
2001-06-06$24.74$24.7477,600
2001-06-05$25.44$25.4495,600
2001-06-04$24.50$24.50120,900
2001-06-01$27.00$27.0055,300
2001-05-31$27.75$27.7574,900
2001-05-30$26.21$26.21133,100
2001-05-29$28.02$28.0261,900
2001-05-25$29.41$29.4181,100
2001-05-24$28.41$28.41124,700
2001-05-23$27.96$27.9656,800
2001-05-22$27.80$27.8036,900
2001-05-21$27.30$27.30138,100
2001-05-18$27.86$27.8658,500
2001-05-17$28.45$28.4576,800
2001-05-16$27.38$27.3896,000
2001-05-15$26.22$26.2253,900
2001-05-14$26.95$26.95108,600
2001-05-11$27.25$27.25128,800
2001-05-10$28.67$28.67126,600
2001-05-09$28.25$28.2591,900
2001-05-08$29.00$29.00137,400
2001-05-07$28.25$28.25175,600
2001-05-04$26.80$26.80101,000
2001-05-03$25.00$25.0097,300
2001-05-02$25.13$25.13102,600
2001-05-01$24.59$24.59101,100
2001-04-30$23.65$23.65163,800
2001-04-27$21.90$21.9068,500
2001-04-26$20.99$20.9969,200
2001-04-25$20.95$20.9576,000
2001-04-24$19.52$19.5239,600
2001-04-23$19.70$19.7037,700
2001-04-20$19.69$19.6925,900
2001-04-19$19.95$19.9532,200
2001-04-18$20.05$20.0533,100
2001-04-17$19.91$19.9125,800
2001-04-16$19.81$19.8139,800
2001-04-12$19.94$19.9457,700
2001-04-11$19.20$19.2033,400
2001-04-10$18.04$18.0446,300
2001-04-09$17.96$17.9619,400
2001-04-06$18.31$18.3152,200
2001-04-05$18.50$18.5082,300
2001-04-04$19.00$19.00255,600
2001-04-03$18.00$18.0060,700
2001-04-02$18.75$18.7547,400
2001-03-30$18.25$18.2557,200
2001-03-29$17.50$17.5029,600
2001-03-28$17.31$17.3168,000
2001-03-27$18.31$18.3150,200
2001-03-26$17.44$17.4454,200
2001-03-23$15.56$15.5644,700
2001-03-22$14.63$14.6378,800
2001-03-21$14.50$14.5025,500
2001-03-20$14.44$14.4419,800
2001-03-19$14.25$14.2527,300
2001-03-16$14.50$14.5083,700
2001-03-15$15.88$15.8841,000
2001-03-14$12.75$12.7569,700
2001-03-13$12.00$12.0075,200
2001-03-12$13.06$13.0670,200
2001-03-09$14.69$14.6929,700
2001-03-08$16.13$16.1346,100
2001-03-07$15.88$15.8819,300
2001-03-06$15.50$15.5022,400
2001-03-05$15.00$15.0049,700
2001-03-02$14.25$14.2570,900
2001-03-01$14.25$14.25134,100
2001-02-28$16.00$16.0098,800
2001-02-27$16.00$16.0024,700
2001-02-26$16.38$16.3875,900
2001-02-23$15.75$15.75110,600
2001-02-22$16.06$16.0638,800
2001-02-21$16.63$16.6331,900
2001-02-20$17.81$17.8139,400
2001-02-16$17.69$17.6917,400
2001-02-15$18.13$18.1317,700
2001-02-14$17.94$17.9422,600
2001-02-13$18.06$18.0620,400
2001-02-12$18.06$18.0638,300
2001-02-09$18.42$18.4228,800
2001-02-08$19.50$19.5024,500
2001-02-07$19.75$19.7521,300
2001-02-06$19.81$19.8117,500
2001-02-05$19.75$19.7511,500
2001-02-02$19.63$19.6355,500
2001-02-01$20.56$20.5682,500
2001-01-31$20.69$20.6950,900
2001-01-30$20.69$20.6969,000
2001-01-29$19.25$19.2531,100
2001-01-26$19.06$19.0646,500
2001-01-25$19.06$19.0670,700
2001-01-24$20.00$20.0057,900
2001-01-23$20.13$20.1371,600
2001-01-22$19.56$19.5648,800
2001-01-19$20.00$20.0059,900
2001-01-18$21.38$21.3858,700
2001-01-17$22.13$22.13112,900
2001-01-16$23.50$23.5085,300
2001-01-12$23.63$23.6380,300
2001-01-11$22.00$22.00104,600
2001-01-10$19.38$19.3877,500
2001-01-09$18.75$18.7557,900
2001-01-08$18.00$18.0097,100
2001-01-05$16.25$16.2526,400
2001-01-04$16.56$16.5621,500
2001-01-03$16.56$16.5625,600
2001-01-02$15.50$15.5072,200