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 — 2000

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2000-12-29$17.50$17.5094,100
2000-12-28$18.00$18.0059,700
2000-12-27$16.94$16.9457,500
2000-12-26$16.69$16.69106,900
2000-12-22$16.94$16.9440,600
2000-12-21$15.25$15.2557,900
2000-12-20$16.25$16.2532,600
2000-12-19$18.38$18.3881,000
2000-12-18$16.94$16.9425,200
2000-12-15$18.00$18.0037,300
2000-12-14$18.69$18.6910,500
2000-12-13$19.00$19.0031,800
2000-12-12$19.25$19.2546,600
2000-12-11$19.38$19.3851,200
2000-12-08$18.06$18.0636,900
2000-12-07$17.00$17.0017,300
2000-12-06$17.13$17.1335,600
2000-12-05$17.00$17.0025,100
2000-12-04$16.19$16.1918,400
2000-12-01$16.75$16.7544,100
2000-11-30$15.94$15.9446,300
2000-11-29$17.25$17.2516,100
2000-11-28$17.88$17.8817,600
2000-11-27$17.38$17.3816,100
2000-11-24$18.00$18.0012,600
2000-11-22$17.13$17.1332,100
2000-11-21$17.75$17.7520,100
2000-11-20$17.88$17.8821,200
2000-11-17$16.81$16.8151,100
2000-11-16$18.06$18.0616,900
2000-11-15$18.75$18.7523,900
2000-11-14$18.75$18.7550,200
2000-11-13$18.25$18.25106,700
2000-11-10$17.38$17.3817,400
2000-11-09$17.50$17.5039,000
2000-11-08$18.00$18.0052,800
2000-11-07$18.25$18.2546,500
2000-11-06$18.55$18.5514,800
2000-11-03$19.00$19.0020,500
2000-11-02$19.25$19.2533,200
2000-11-01$19.81$19.8122,500
2000-10-31$19.25$19.2523,500
2000-10-30$19.19$19.1919,200
2000-10-27$18.63$18.6355,900
2000-10-26$18.94$18.9440,400
2000-10-25$19.19$19.1943,700
2000-10-24$19.94$19.9463,200
2000-10-23$20.00$20.0051,200
2000-10-20$19.06$19.0640,200
2000-10-19$19.06$19.0653,300
2000-10-18$19.25$19.2532,500
2000-10-17$19.88$19.88158,000
2000-10-16$18.88$18.8876,500
2000-10-13$17.13$17.1347,900
2000-10-12$14.50$14.5030,000
2000-10-11$14.25$14.2581,700
2000-10-10$15.25$15.2561,700
2000-10-09$16.69$16.6910,200
2000-10-06$16.81$16.8120,800
2000-10-05$17.38$17.3849,300
2000-10-04$16.63$16.6324,500
2000-10-03$16.63$16.6355,600
2000-10-02$17.00$17.0065,200
2000-09-29$19.19$19.1956,500
2000-09-28$17.75$17.7519,400
2000-09-27$16.31$16.3182,300
2000-09-26$18.56$18.5637,700
2000-09-25$19.00$19.0012,500
2000-09-22$18.75$18.7532,400
2000-09-21$18.81$18.8130,100
2000-09-20$19.13$19.1321,600
2000-09-19$19.00$19.0021,400
2000-09-18$19.00$19.0022,900
2000-09-15$19.44$19.4422,000
2000-09-14$20.25$20.2544,000
2000-09-13$19.03$19.0322,700
2000-09-12$19.50$19.5022,500
2000-09-11$19.44$19.4418,900
2000-09-08$19.56$19.5620,500
2000-09-07$20.00$20.0028,000
2000-09-06$19.56$19.5638,700
2000-09-05$18.88$18.8845,000
2000-09-01$19.50$19.5074,300
2000-08-31$19.13$19.1347,700
2000-08-30$19.13$19.1354,300
2000-08-29$19.13$19.1370,400
2000-08-28$20.06$20.06135,100
2000-08-25$19.00$19.00375,000
2000-08-24$15.63$15.63274,000
2000-08-23$17.13$17.13187,800
2000-08-22$18.13$18.1369,800
2000-08-21$18.63$18.6370,800
2000-08-18$19.31$19.3159,100
2000-08-17$20.38$20.3874,600
2000-08-16$21.44$21.4420,300
2000-08-15$22.00$22.0020,300
2000-08-14$22.00$22.0036,600
2000-08-11$22.50$22.5041,100
2000-08-10$22.00$22.0022,900
2000-08-09$22.50$22.5025,200
2000-08-08$22.69$22.6918,900
2000-08-07$22.25$22.2535,300
2000-08-04$23.75$23.7578,300
2000-08-03$22.63$22.6355,200
2000-08-02$23.06$23.0689,900
2000-08-01$24.88$24.88107,600
2000-07-31$26.44$26.4485,100
2000-07-28$25.06$25.0668,700
2000-07-27$26.88$26.8838,100
2000-07-26$27.50$27.5070,400
2000-07-25$27.00$27.0039,700
2000-07-24$25.50$25.5035,400
2000-07-21$26.33$26.3336,900
2000-07-20$26.75$26.7564,800
2000-07-19$27.38$27.3858,500
2000-07-18$28.31$28.3156,100
2000-07-17$28.19$28.1963,600
2000-07-14$28.00$28.00105,800
2000-07-13$29.31$29.3149,800
2000-07-12$30.06$30.0633,300
2000-07-11$30.69$30.6931,800
2000-07-10$30.38$30.3822,400
2000-07-07$31.13$31.1343,100
2000-07-06$31.31$31.3164,200
2000-07-05$30.69$30.6937,700
2000-07-03$30.75$30.7529,900
2000-06-30$30.00$30.00236,300
2000-06-29$30.50$30.5076,500
2000-06-28$30.75$30.7559,200
2000-06-27$31.13$31.1347,300
2000-06-26$30.38$30.3878,400
2000-06-23$29.00$29.0045,500
2000-06-22$29.38$29.3850,000
2000-06-21$29.50$29.5062,200
2000-06-20$28.13$28.1327,200
2000-06-19$27.50$27.5054,900
2000-06-16$29.38$29.3862,500
2000-06-15$28.31$28.3149,600
2000-06-14$26.69$26.6936,400
2000-06-13$27.19$27.1973,700
2000-06-12$25.38$25.3877,200
2000-06-09$22.91$22.9134,500
2000-06-08$24.00$24.0018,900
2000-06-07$24.38$24.3821,900
2000-06-06$24.50$24.5054,600
2000-06-05$23.75$23.7581,600
2000-06-02$22.00$22.0036,600
2000-06-01$20.50$20.5037,800
2000-05-31$20.19$20.1935,100
2000-05-30$20.63$20.6333,600
2000-05-26$20.00$20.0030,400
2000-05-25$20.50$20.5066,500
2000-05-24$20.50$20.50148,500
2000-05-23$21.50$21.50116,700
2000-05-22$19.38$19.3834,300
2000-05-19$19.50$19.5037,400
2000-05-18$19.44$19.4462,000
2000-05-17$19.63$19.6336,600
2000-05-16$20.69$20.6936,600
2000-05-15$20.00$20.0043,400
2000-05-12$21.63$21.6327,400
2000-05-11$20.44$20.4448,500
2000-05-10$19.06$19.0669,900
2000-05-09$22.75$22.7535,900
2000-05-08$23.50$23.5035,900
2000-05-05$23.00$23.0041,200
2000-05-04$22.56$22.5624,700
2000-05-03$21.75$21.7567,500
2000-05-02$22.75$22.7568,700
2000-05-01$21.13$21.1393,700
2000-04-28$19.25$19.2539,000
2000-04-27$18.31$18.3197,400
2000-04-26$17.25$17.25124,600
2000-04-25$19.13$19.1365,800
2000-04-24$19.81$19.8197,500
2000-04-20$21.50$21.5062,900
2000-04-19$21.88$21.8892,800
2000-04-18$20.63$20.63252,300
2000-04-17$16.00$16.00566,800
2000-04-14$17.13$17.13349,600
2000-04-13$22.13$22.13210,800
2000-04-12$24.13$24.1382,500
2000-04-11$26.00$26.0045,600
2000-04-10$27.25$27.2531,800
2000-04-07$27.75$27.7568,900
2000-04-06$26.94$26.9443,900
2000-04-05$26.75$26.75119,500
2000-04-04$24.81$24.81320,500
2000-04-03$28.75$28.7555,900
2000-03-31$29.50$29.50121,600
2000-03-30$31.50$31.50119,800
2000-03-29$33.88$33.88120,900
2000-03-28$34.50$34.50121,900
2000-03-27$33.63$33.63142,700
2000-03-24$30.75$30.7557,700
2000-03-23$29.88$29.8865,600
2000-03-22$30.38$30.38209,200
2000-03-21$27.00$27.0051,100
2000-03-20$26.75$26.7566,400
2000-03-17$27.50$27.5062,600
2000-03-16$26.50$26.50107,600
2000-03-15$27.06$27.0669,900
2000-03-14$28.00$28.0066,800
2000-03-13$29.94$29.9448,500
2000-03-10$30.50$30.5053,500
2000-03-09$29.63$29.63162,200
2000-03-08$28.88$28.88372,900
2000-03-07$28.50$28.50265,800
2000-03-06$32.88$32.8841,500
2000-03-03$33.44$33.4490,400
2000-03-02$32.31$32.3172,700
2000-03-01$32.00$32.00136,300
2000-02-29$34.94$34.9488,500
2000-02-28$33.00$33.00148,400
2000-02-25$33.63$33.63275,200
2000-02-24$34.81$34.81193,000
2000-02-23$36.88$36.88108,500
2000-02-22$37.00$37.0086,600
2000-02-18$35.69$35.69237,900
2000-02-17$38.63$38.63386,500
2000-02-16$35.19$35.19420,700
2000-02-15$30.81$30.81106,400
2000-02-14$29.00$29.0062,700
2000-02-11$28.75$28.75112,300
2000-02-10$28.38$28.3859,000
2000-02-09$27.75$27.7584,100
2000-02-08$28.19$28.1959,900
2000-02-07$28.38$28.38108,300
2000-02-04$27.38$27.38123,900
2000-02-03$26.81$26.81102,600
2000-02-02$25.75$25.75116,000
2000-02-01$27.25$27.2592,400
2000-01-31$26.50$26.50264,900
2000-01-28$23.88$23.88247,700
2000-01-27$24.88$24.88490,000
2000-01-26$30.50$30.50407,500
2000-01-25$28.50$28.50503,500
2000-01-24$24.13$24.13427,400
2000-01-21$20.81$20.81158,600
2000-01-20$19.88$19.8842,500
2000-01-19$19.81$19.8195,000
2000-01-18$19.63$19.63100,600
2000-01-14$18.75$18.75105,300
2000-01-13$19.00$19.00114,100
2000-01-12$19.69$19.69118,700
2000-01-11$18.50$18.50255,900
2000-01-10$20.19$20.19394,300
2000-01-07$17.50$17.5085,300
2000-01-06$17.25$17.25199,000
2000-01-05$16.25$16.25233,700
2000-01-04$15.75$15.75289,400
2000-01-03$17.94$17.94243,300