Research Frontiers Incorporated (REFR)
NASDAQ: REFR · Real-Time Price · USD
0.80495
+0.0293 (3.77%)
At close: May 13, 2026, 4:00 PM EDT
0.7901
-0.0149 (-1.84%)
After-hours: May 13, 2026, 4:00 PM EDT
Research Frontiers Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| May 13, 2026 | 0.81 | 0.86 | 0.79 | 0.79 | 0.79 | 1.86% | 67,033 |
| May 12, 2026 | 0.79 | 0.79 | 0.76 | 0.78 | 0.78 | 2.05% | 27,593 |
| May 11, 2026 | 0.90 | 0.90 | 0.76 | 0.76 | 0.76 | 0.78% | 80,261 |
| May 8, 2026 | 0.89 | 0.89 | 0.75 | 0.75 | 0.75 | -9.48% | 74,901 |
| May 7, 2026 | 0.87 | 0.99 | 0.83 | 0.83 | 0.83 | -4.89% | 90,718 |
| May 6, 2026 | 0.99 | 0.99 | 0.88 | 0.88 | 0.88 | 0.69% | 27,534 |
| May 5, 2026 | 0.87 | 0.95 | 0.86 | 0.87 | 0.87 | 0.05% | 28,587 |
| May 4, 2026 | 0.88 | 0.94 | 0.83 | 0.87 | 0.87 | -0.96% | 95,520 |
| May 1, 2026 | 0.92 | 0.92 | 0.87 | 0.88 | 0.88 | -4.55% | 57,889 |
| Apr 30, 2026 | 0.95 | 0.96 | 0.91 | 0.92 | 0.92 | -2.14% | 56,730 |
| Apr 29, 2026 | 0.93 | 0.95 | 0.93 | 0.94 | 0.94 | 0.32% | 2,471 |
| Apr 28, 2026 | 0.93 | 0.98 | 0.93 | 0.94 | 0.94 | -1.37% | 25,242 |
| Apr 27, 2026 | 0.99 | 0.99 | 0.94 | 0.95 | 0.95 | -1.04% | 7,894 |
| Apr 24, 2026 | 1.01 | 1.02 | 0.93 | 0.96 | 0.96 | -3.96% | 26,940 |
| Apr 23, 2026 | 0.99 | 1.02 | 0.99 | 1.00 | 1.00 | 2.65% | 10,856 |
| Apr 22, 2026 | 0.97 | 1.02 | 0.97 | 0.97 | 0.97 | -1.64% | 6,618 |
| Apr 21, 2026 | 1.00 | 1.02 | 0.98 | 0.99 | 0.99 | -0.98% | 37,680 |
| Apr 20, 2026 | 0.93 | 1.00 | 0.93 | 1.00 | 1.00 | 7.49% | 23,447 |
| 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 |