Research Frontiers Incorporated (REFR)
NASDAQ: REFR · Real-Time Price · USD
0.9321
+0.0020 (0.22%)
Apr 20, 2026, 10:58 AM EDT - Market open
Research Frontiers Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Apr 17, 2026 | 0.95 | 0.95 | 0.93 | 0.93 | 0.93 | -0.66% | 4,913 |
| Apr 16, 2026 | 0.91 | 0.95 | 0.91 | 0.94 | 0.94 | 2.60% | 17,265 |
| Apr 15, 2026 | 1.01 | 1.01 | 0.91 | 0.91 | 0.91 | -10.09% | 39,991 |
| Apr 14, 2026 | 0.91 | 1.02 | 0.91 | 1.02 | 1.02 | 9.15% | 94,123 |
| Apr 13, 2026 | 0.95 | 0.97 | 0.92 | 0.93 | 0.93 | -3.13% | 17,685 |
| Apr 10, 2026 | 0.97 | 0.97 | 0.96 | 0.96 | 0.96 | 2.12% | 4,644 |
| Apr 9, 2026 | 0.93 | 0.97 | 0.91 | 0.94 | 0.94 | 2.01% | 35,901 |
| Apr 8, 2026 | 0.98 | 0.98 | 0.92 | 0.92 | 0.92 | -0.91% | 35,260 |
| Apr 7, 2026 | 0.92 | 0.97 | 0.91 | 0.93 | 0.93 | -0.79% | 20,741 |
| Apr 6, 2026 | 0.93 | 0.97 | 0.90 | 0.94 | 0.94 | 1.33% | 6,200 |
| Apr 2, 2026 | 0.93 | 0.93 | 0.90 | 0.93 | 0.93 | -3.07% | 2,450 |
| Apr 1, 2026 | 0.94 | 0.97 | 0.94 | 0.95 | 0.95 | 3.74% | 8,537 |
| Mar 31, 2026 | 0.87 | 0.96 | 0.87 | 0.92 | 0.92 | 1.10% | 16,817 |
| Mar 30, 2026 | 0.89 | 0.94 | 0.88 | 0.91 | 0.91 | 2.10% | 6,654 |
| Mar 27, 2026 | 0.87 | 0.94 | 0.87 | 0.89 | 0.89 | -1.13% | 9,341 |
| Mar 26, 2026 | 0.86 | 0.91 | 0.86 | 0.90 | 0.90 | 8.48% | 31,698 |
| Mar 25, 2026 | 0.87 | 0.97 | 0.82 | 0.83 | 0.83 | -2.25% | 91,904 |
| Mar 24, 2026 | 0.86 | 0.90 | 0.85 | 0.85 | 0.85 | -1.68% | 20,468 |
| Mar 23, 2026 | 0.86 | 0.90 | 0.86 | 0.86 | 0.86 | 8.08% | 36,474 |
| Mar 20, 2026 | 1.02 | 1.03 | 0.80 | 0.80 | 0.80 | -21.57% | 173,128 |
| Mar 19, 2026 | 1.01 | 1.02 | 1.00 | 1.02 | 1.02 | 2.00% | 13,769 |
| Mar 18, 2026 | 1.02 | 1.03 | 1.00 | 1.00 | 1.00 | - | 22,347 |
| Mar 17, 2026 | 1.00 | 1.03 | 1.00 | 1.00 | 1.00 | -0.99% | 10,259 |
| Mar 16, 2026 | 1.00 | 1.03 | 1.00 | 1.01 | 1.01 | - | 30,630 |
| Mar 13, 2026 | 1.01 | 1.01 | 1.00 | 1.01 | 1.01 | -0.98% | 29,985 |
| Mar 12, 2026 | 0.93 | 1.02 | 0.92 | 1.02 | 1.02 | 12.86% | 27,944 |
| Mar 11, 2026 | 0.93 | 0.95 | 0.90 | 0.90 | 0.90 | -2.40% | 26,205 |
| Mar 10, 2026 | 0.97 | 0.97 | 0.92 | 0.93 | 0.93 | -1.49% | 40,086 |
| Mar 9, 2026 | 0.96 | 0.97 | 0.94 | 0.94 | 0.94 | -4.08% | 20,837 |
| Mar 6, 2026 | 0.99 | 1.01 | 0.96 | 0.98 | 0.98 | -1.01% | 48,034 |
| Mar 5, 2026 | 1.05 | 1.05 | 0.99 | 0.99 | 0.99 | -1.98% | 41,034 |
| Mar 4, 2026 | 1.00 | 1.05 | 1.00 | 1.01 | 1.01 | - | 13,124 |
| Mar 3, 2026 | 1.01 | 1.10 | 0.98 | 1.01 | 1.01 | -1.94% | 23,057 |
| Mar 2, 2026 | 1.02 | 1.10 | 1.02 | 1.03 | 1.03 | 3.50% | 20,478 |
| Feb 27, 2026 | 1.03 | 1.05 | 0.98 | 1.00 | 1.00 | 1.14% | 87,288 |
| Feb 26, 2026 | 1.14 | 1.14 | 0.98 | 0.98 | 0.98 | -11.35% | 75,996 |
| Feb 25, 2026 | 1.13 | 1.13 | 1.11 | 1.11 | 1.11 | 0.91% | 5,491 |
| Feb 24, 2026 | 1.12 | 1.12 | 1.07 | 1.10 | 1.10 | -0.90% | 13,603 |
| Feb 23, 2026 | 1.13 | 1.13 | 1.10 | 1.11 | 1.11 | - | 15,671 |
| Feb 20, 2026 | 1.03 | 1.13 | 1.03 | 1.11 | 1.11 | 7.77% | 48,027 |
| Feb 19, 2026 | 1.02 | 1.05 | 1.02 | 1.03 | 1.03 | 1.98% | 18,649 |
| Feb 18, 2026 | 1.04 | 1.09 | 1.00 | 1.01 | 1.01 | -0.98% | 33,770 |
| Feb 17, 2026 | 1.02 | 1.12 | 1.02 | 1.02 | 1.02 | 2.00% | 8,242 |
| Feb 13, 2026 | 1.04 | 1.09 | 0.98 | 1.00 | 1.00 | -2.91% | 72,501 |
| Feb 12, 2026 | 1.05 | 1.08 | 1.01 | 1.03 | 1.03 | -0.96% | 33,926 |
| Feb 11, 2026 | 1.05 | 1.06 | 1.02 | 1.04 | 1.04 | - | 46,390 |
| Feb 10, 2026 | 1.02 | 1.08 | 1.02 | 1.04 | 1.04 | 0.97% | 14,397 |
| Feb 9, 2026 | 1.11 | 1.17 | 1.00 | 1.03 | 1.03 | -8.04% | 134,283 |
| Feb 6, 2026 | 1.11 | 1.25 | 1.11 | 1.12 | 1.12 | -0.88% | 26,547 |
| Feb 5, 2026 | 1.13 | 1.14 | 1.09 | 1.13 | 1.13 | - | 30,868 |