Research Frontiers Incorporated (REFR)
NASDAQ: REFR · Real-Time Price · USD
1.500
-0.020 (-1.32%)
At close: Aug 15, 2025, 4:00 PM
1.470
-0.030 (-2.00%)
After-hours: Aug 15, 2025, 4:04 PM EDT
Research Frontiers Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Aug 15, 2025 | 1.56 | 1.56 | 1.47 | 1.47 | 1.47 | -3.29% | 28,371 |
| Aug 14, 2025 | 1.53 | 1.53 | 1.50 | 1.52 | 1.52 | 0.66% | 9,123 |
| Aug 13, 2025 | 1.50 | 1.57 | 1.50 | 1.51 | 1.51 | 0.67% | 17,800 |
| Aug 12, 2025 | 1.50 | 1.57 | 1.50 | 1.50 | 1.50 | - | 20,000 |
| Aug 11, 2025 | 1.51 | 1.54 | 1.50 | 1.50 | 1.50 | -1.96% | 18,837 |
| Aug 8, 2025 | 1.50 | 1.62 | 1.49 | 1.53 | 1.53 | -2.55% | 49,900 |
| Aug 7, 2025 | 1.54 | 1.61 | 1.52 | 1.57 | 1.57 | 2.61% | 51,657 |
| Aug 6, 2025 | 1.52 | 1.63 | 1.52 | 1.53 | 1.53 | -2.55% | 28,828 |
| Aug 5, 2025 | 1.53 | 1.65 | 1.53 | 1.57 | 1.57 | -0.63% | 10,420 |
| Aug 4, 2025 | 1.58 | 1.70 | 1.52 | 1.58 | 1.58 | -1.25% | 63,931 |
| Aug 1, 2025 | 1.61 | 1.65 | 1.53 | 1.60 | 1.60 | 1.27% | 34,511 |
| Jul 31, 2025 | 1.64 | 1.71 | 1.58 | 1.58 | 1.58 | -4.24% | 94,905 |
| Jul 30, 2025 | 1.60 | 1.66 | 1.60 | 1.65 | 1.65 | 1.85% | 8,900 |
| Jul 29, 2025 | 1.69 | 1.69 | 1.62 | 1.62 | 1.62 | -5.26% | 52,657 |
| Jul 28, 2025 | 1.85 | 1.93 | 1.71 | 1.71 | 1.71 | -7.07% | 17,515 |
| Jul 25, 2025 | 1.77 | 1.89 | 1.71 | 1.84 | 1.84 | 1.66% | 93,293 |
| Jul 24, 2025 | 1.80 | 1.95 | 1.78 | 1.81 | 1.81 | -0.82% | 24,660 |
| Jul 23, 2025 | 1.77 | 1.97 | 1.76 | 1.83 | 1.83 | 1.96% | 12,341 |
| Jul 22, 2025 | 1.79 | 1.93 | 1.78 | 1.79 | 1.79 | 4.07% | 47,835 |
| Jul 21, 2025 | 1.81 | 1.85 | 1.72 | 1.72 | 1.72 | -4.44% | 17,824 |
| Jul 18, 2025 | 1.83 | 1.83 | 1.72 | 1.80 | 1.80 | 0.56% | 9,987 |
| Jul 17, 2025 | 1.78 | 1.95 | 1.71 | 1.79 | 1.79 | 1.70% | 58,456 |
| Jul 16, 2025 | 1.70 | 1.82 | 1.65 | 1.76 | 1.76 | 6.02% | 75,912 |
| Jul 15, 2025 | 1.62 | 1.68 | 1.60 | 1.66 | 1.66 | 3.75% | 20,543 |
| Jul 14, 2025 | 1.61 | 1.71 | 1.56 | 1.60 | 1.60 | 1.27% | 51,802 |
| Jul 11, 2025 | 1.59 | 1.71 | 1.57 | 1.58 | 1.58 | -0.63% | 12,016 |
| Jul 10, 2025 | 1.53 | 1.66 | 1.53 | 1.59 | 1.59 | 5.30% | 11,423 |
| Jul 9, 2025 | 1.48 | 1.55 | 1.48 | 1.51 | 1.51 | 1.34% | 25,713 |
| Jul 8, 2025 | 1.59 | 1.59 | 1.49 | 1.49 | 1.49 | -5.10% | 68,297 |
| Jul 7, 2025 | 1.70 | 1.71 | 1.52 | 1.57 | 1.57 | -4.27% | 46,541 |
| Jul 3, 2025 | 1.60 | 1.70 | 1.60 | 1.64 | 1.64 | 1.86% | 12,228 |
| Jul 2, 2025 | 1.59 | 1.70 | 1.58 | 1.61 | 1.61 | 3.87% | 10,203 |
| Jul 1, 2025 | 1.62 | 1.63 | 1.54 | 1.55 | 1.55 | -5.49% | 16,005 |
| Jun 30, 2025 | 1.60 | 1.72 | 1.57 | 1.64 | 1.64 | -0.61% | 41,723 |
| Jun 27, 2025 | 1.67 | 1.78 | 1.64 | 1.65 | 1.65 | -1.79% | 24,869 |
| Jun 26, 2025 | 1.76 | 1.78 | 1.67 | 1.68 | 1.68 | 0.60% | 14,535 |
| Jun 25, 2025 | 1.84 | 1.84 | 1.66 | 1.67 | 1.67 | -7.73% | 13,651 |
| Jun 24, 2025 | 1.69 | 1.81 | 1.60 | 1.81 | 1.81 | 7.74% | 41,872 |
| Jun 23, 2025 | 1.69 | 1.82 | 1.60 | 1.68 | 1.68 | -3.45% | 34,052 |
| Jun 20, 2025 | 1.75 | 1.75 | 1.65 | 1.74 | 1.74 | -0.57% | 33,089 |
| Jun 18, 2025 | 1.72 | 1.77 | 1.67 | 1.75 | 1.75 | -1.69% | 43,149 |
| Jun 17, 2025 | 1.82 | 1.82 | 1.72 | 1.78 | 1.78 | -2.20% | 49,890 |
| Jun 16, 2025 | 1.87 | 1.92 | 1.80 | 1.82 | 1.82 | -2.67% | 32,777 |
| Jun 13, 2025 | 1.91 | 1.94 | 1.85 | 1.87 | 1.87 | -1.58% | 22,412 |
| Jun 12, 2025 | 1.89 | 1.95 | 1.82 | 1.90 | 1.90 | -0.84% | 19,335 |
| Jun 11, 2025 | 1.90 | 1.97 | 1.90 | 1.92 | 1.92 | 0.31% | 19,350 |
| Jun 10, 2025 | 2.00 | 2.00 | 1.89 | 1.91 | 1.91 | -4.50% | 33,412 |
| Jun 9, 2025 | 2.01 | 2.05 | 1.99 | 2.00 | 2.00 | - | 29,834 |
| Jun 6, 2025 | 2.02 | 2.04 | 1.96 | 2.00 | 2.00 | -0.99% | 27,474 |
| Jun 5, 2025 | 1.95 | 2.04 | 1.92 | 2.02 | 2.02 | 1.00% | 22,843 |