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Research Frontiers Incorporated (REFR)
NASDAQ: REFR · Real-Time Price · USD
0.937
-0.013 (-1.37%)
At close: Apr 28, 2026, 4:00 PM EDT
0.937
0.00 (0.00%)
After-hours: Apr 28, 2026, 5:02 PM EDT

Research Frontiers Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Apr 28, 20260.930.980.930.940.94-1.37%25,242
Apr 27, 20260.990.990.940.950.95-1.04%7,894
Apr 24, 20261.011.020.930.960.96-3.96%26,940
Apr 23, 20260.991.020.991.001.002.65%10,856
Apr 22, 20260.971.020.970.970.97-1.64%6,618
Apr 21, 20261.001.020.980.990.99-0.98%37,680
Apr 20, 20260.931.000.931.001.007.49%23,447
Apr 17, 20260.950.950.930.930.93-0.66%4,913
Apr 16, 20260.910.950.910.940.942.60%17,265
Apr 15, 20261.011.010.910.910.91-10.09%39,991
Apr 14, 20260.911.020.911.021.029.15%94,123
Apr 13, 20260.950.970.920.930.93-3.13%17,685
Apr 10, 20260.970.970.960.960.962.12%4,644
Apr 9, 20260.930.970.910.940.942.01%35,901
Apr 8, 20260.980.980.920.920.92-0.91%35,260
Apr 7, 20260.920.970.910.930.93-0.79%20,741
Apr 6, 20260.930.970.900.940.941.33%6,200
Apr 2, 20260.930.930.900.930.93-3.07%2,450
Apr 1, 20260.940.970.940.950.953.74%8,537
Mar 31, 20260.870.960.870.920.921.10%16,817
Mar 30, 20260.890.940.880.910.912.10%6,654
Mar 27, 20260.870.940.870.890.89-1.13%9,341
Mar 26, 20260.860.910.860.900.908.48%31,698
Mar 25, 20260.870.970.820.830.83-2.25%91,904
Mar 24, 20260.860.900.850.850.85-1.68%20,468
Mar 23, 20260.860.900.860.860.868.08%36,474
Mar 20, 20261.021.030.800.800.80-21.57%173,128
Mar 19, 20261.011.021.001.021.022.00%13,769
Mar 18, 20261.021.031.001.001.00-22,347
Mar 17, 20261.001.031.001.001.00-0.99%10,259
Mar 16, 20261.001.031.001.011.01-30,630
Mar 13, 20261.011.011.001.011.01-0.98%29,985
Mar 12, 20260.931.020.921.021.0212.86%27,944
Mar 11, 20260.930.950.900.900.90-2.40%26,205
Mar 10, 20260.970.970.920.930.93-1.49%40,086
Mar 9, 20260.960.970.940.940.94-4.08%20,837
Mar 6, 20260.991.010.960.980.98-1.01%48,034
Mar 5, 20261.051.050.990.990.99-1.98%41,034
Mar 4, 20261.001.051.001.011.01-13,124
Mar 3, 20261.011.100.981.011.01-1.94%23,057
Mar 2, 20261.021.101.021.031.033.50%20,478
Feb 27, 20261.031.050.981.001.001.14%87,288
Feb 26, 20261.141.140.980.980.98-11.35%75,996
Feb 25, 20261.131.131.111.111.110.91%5,491
Feb 24, 20261.121.121.071.101.10-0.90%13,603
Feb 23, 20261.131.131.101.111.11-15,671
Feb 20, 20261.031.131.031.111.117.77%48,027
Feb 19, 20261.021.051.021.031.031.98%18,649
Feb 18, 20261.041.091.001.011.01-0.98%33,770
Feb 17, 20261.021.121.021.021.022.00%8,242
Feb 13, 20261.041.090.981.001.00-2.91%72,501
Feb 12, 20261.051.081.011.031.03-0.96%33,926
Feb 11, 20261.051.061.021.041.04-46,390
Feb 10, 20261.021.081.021.041.040.97%14,397
Feb 9, 20261.111.171.001.031.03-8.04%134,283
Feb 6, 20261.111.251.111.121.12-0.88%26,547
Feb 5, 20261.131.141.091.131.13-30,868
Feb 4, 20261.151.181.111.131.13-2.59%17,982
Feb 3, 20261.151.201.151.161.161.75%26,089
Feb 2, 20261.181.211.141.141.14-5.00%50,173
Jan 30, 20261.201.231.141.201.20-83,044
Jan 29, 20261.251.321.201.201.20-5.51%75,183
Jan 28, 20261.271.291.231.271.27-0.78%17,488
Jan 27, 20261.291.301.251.281.28-1.54%46,450
Jan 26, 20261.291.311.211.301.302.36%64,846
Jan 23, 20261.271.321.261.271.27-29,585
Jan 22, 20261.221.311.211.271.272.42%111,202
Jan 21, 20261.231.301.211.241.24-2.36%70,042
Jan 20, 20261.321.341.251.271.27-4.51%41,224
Jan 16, 20261.331.381.301.331.330.76%43,044
Jan 15, 20261.351.401.301.321.32-2.94%19,328
Jan 14, 20261.341.371.321.361.362.26%21,387
Jan 13, 20261.311.341.311.331.333.91%14,629
Jan 12, 20261.281.341.281.281.282.40%22,331
Jan 9, 20261.271.351.201.251.25-1.57%85,880
Jan 8, 20261.311.341.271.271.27-1.55%55,233
Jan 7, 20261.351.431.271.291.29-2.27%23,254
Jan 6, 20261.311.351.311.321.32-22,567
Jan 5, 20261.281.441.271.321.323.13%41,952
Jan 2, 20261.311.311.261.281.28-2.29%46,861
Dec 31, 20251.311.341.261.311.31-0.76%85,203
Dec 30, 20251.361.361.301.321.32-3.65%48,522
Dec 29, 20251.361.451.311.371.37-0.72%148,715
Dec 26, 20251.411.491.301.381.38-0.72%96,016
Dec 24, 20251.401.421.361.391.39-1.42%16,656
Dec 23, 20251.501.501.361.411.41-2.76%62,823
Dec 22, 20251.501.541.411.451.45-0.68%77,117
Dec 19, 20251.521.531.421.461.46-1.35%100,126
Dec 18, 20251.461.481.271.481.482.78%101,961
Dec 17, 20251.491.531.421.441.44-2.70%36,616
Dec 16, 20251.501.521.441.481.48-5.13%51,024
Dec 15, 20251.521.591.501.561.561.30%60,885
Dec 12, 20251.591.591.521.541.54-1.28%30,287
Dec 11, 20251.571.621.541.561.56-1.27%32,105
Dec 10, 20251.591.631.571.581.58-0.63%48,552
Dec 9, 20251.581.691.561.591.59-41,530
Dec 8, 20251.641.651.551.591.59-1.85%60,212
Dec 5, 20251.631.651.521.621.623.18%66,495
Dec 4, 20251.641.651.561.571.57-4.85%34,793
Dec 3, 20251.621.711.561.651.651.23%46,304