If you invested $1000 in Kopin Corporation (KOPN) 10 years ago, it would be worth $2,130.84 as of September 12, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $786.21, while $1000 invested 1 year ago would be worth $1,802.37. This corresponds to total returns of 113.08%, -21.38%, 80.24%, respectively, with annualized returns of 7.85%, -4.7%, 80.24%.
Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.
Date Range:
| Date | Open | Close | Adj Close | High | Low | Volume |
|---|---|---|---|---|---|---|
| September 11, 2026 | 4.39 | 4.56 | 4.56 | 4.66 | 4.39 | 3.32M |
| September 10, 2026 | 4.17 | 4.39 | 4.39 | 4.43 | 4.14 | 3.19M |
| September 09, 2026 | 4.54 | 4.26 | 4.26 | 4.56 | 4.2 | 3.25M |
| September 08, 2026 | 4.4 | 4.56 | 4.56 | 4.62 | 4.37 | 3.81M |
| September 04, 2026 | 4.3 | 4.28 | 4.28 | 4.36 | 4.22 | 1.91M |
| September 03, 2026 | 4.35 | 4.27 | 4.27 | 4.37 | 4.19 | 3.19M |
| September 02, 2026 | 4.19 | 4.29 | 4.29 | 4.34 | 4.14 | 3.44M |
| September 01, 2026 | 4.25 | 4.21 | 4.21 | 4.29 | 4.16 | 2.77M |
| August 31, 2026 | 4.48 | 4.44 | 4.44 | 4.56 | 4.32 | 2.78M |
| August 28, 2026 | 4.77 | 4.48 | 4.48 | 4.91 | 4.45 | 4.97M |
| August 27, 2026 | 4.78 | 4.82 | 4.82 | 4.96 | 4.75 | 2.89M |
| August 26, 2026 | 4.86 | 4.73 | 4.73 | 5.01 | 4.67 | 3.87M |
| August 25, 2026 | 4.86 | 4.83 | 4.83 | 4.93 | 4.78 | 2.4M |
| August 24, 2026 | 4.93 | 4.74 | 4.74 | 4.93 | 4.7 | 3.07M |
| August 21, 2026 | 4.96 | 5.04 | 5.04 | 5.13 | 4.91 | 3.07M |
| August 20, 2026 | 4.87 | 4.89 | 4.89 | 4.96 | 4.72 | 3.6M |
| August 19, 2026 | 5.14 | 4.93 | 4.93 | 5.21 | 4.78 | 4.14M |
| August 18, 2026 | 5.03 | 5.04 | 5.04 | 5.31 | 5 | 3.78M |
| August 17, 2026 | 5.43 | 5.32 | 5.32 | 5.53 | 5.31 | 3.7M |
| August 14, 2026 | 4.92 | 5.5 | 5.5 | 5.5 | 4.91 | 5.91M |
| August 13, 2026 | 4.84 | 4.83 | 4.83 | 5.04 | 4.78 | 3.77M |
| August 12, 2026 | 5.31 | 5.02 | 5.02 | 5.41 | 4.84 | 7.13M |
| August 11, 2026 | 4.79 | 5.2 | 5.2 | 5.51 | 4.67 | 0 |
| August 10, 2026 | 4.25 | 4.21 | 4.21 | 4.38 | 4.19 | 3.6M |
| August 07, 2026 | 4.2 | 4.27 | 4.27 | 4.35 | 4.15 | 2.72M |
| August 06, 2026 | 3.85 | 4.08 | 4.08 | 4.21 | 3.79 | 3.11M |
| August 05, 2026 | 4.11 | 3.95 | 3.95 | 4.16 | 3.94 | 3.04M |
| August 04, 2026 | 3.92 | 4.15 | 4.15 | 4.26 | 3.92 | 5.01M |
| August 03, 2026 | 3.55 | 3.74 | 3.74 | 3.78 | 3.44 | 2.92M |
| July 31, 2026 | 3.67 | 3.52 | 3.52 | 3.71 | 3.42 | 3.15M |
| July 30, 2026 | 3.32 | 3.58 | 3.58 | 3.62 | 3.31 | 3.52M |
| July 29, 2026 | 3.48 | 3.16 | 3.16 | 3.55 | 3.15 | 6M |
| July 28, 2026 | 3.53 | 3.53 | 3.53 | 3.55 | 3.35 | 4.27M |
| July 27, 2026 | 3.63 | 3.71 | 3.71 | 3.84 | 3.5 | 3.37M |
| July 24, 2026 | 3.76 | 3.58 | 3.58 | 3.82 | 3.57 | 3.57M |
| July 23, 2026 | 3.73 | 3.8 | 3.8 | 3.83 | 3.59 | 4.7M |
| July 22, 2026 | 3.98 | 3.75 | 3.75 | 4.07 | 3.7 | 3.04M |
| July 21, 2026 | 3.87 | 4.06 | 4.06 | 4.14 | 3.87 | 4.73M |
| July 20, 2026 | 3.87 | 3.77 | 3.77 | 3.94 | 3.76 | 3.69M |
| July 17, 2026 | 3.61 | 3.81 | 3.81 | 3.99 | 3.38 | 6M |
| July 16, 2026 | 4.09 | 3.69 | 3.69 | 4.1 | 3.62 | 4.9M |
| July 15, 2026 | 4.2 | 4.23 | 4.23 | 4.43 | 4.1 | 7.57M |
| July 14, 2026 | 3.81 | 3.76 | 3.76 | 3.9 | 3.74 | 3.83M |
| July 13, 2026 | 3.78 | 3.63 | 3.63 | 3.81 | 3.56 | 3.49M |
| July 10, 2026 | 4.03 | 3.9 | 3.9 | 4.05 | 3.88 | 2.21M |
| July 09, 2026 | 4.06 | 4.09 | 4.09 | 4.2 | 4.02 | 2.87M |
| July 08, 2026 | 3.75 | 3.94 | 3.94 | 3.99 | 3.73 | 2.87M |
| July 07, 2026 | 4 | 3.79 | 3.79 | 4 | 3.7 | 3.78M |
| July 06, 2026 | 3.96 | 4.13 | 4.13 | 4.26 | 3.91 | 4.05M |
| July 02, 2026 | 4.28 | 3.9 | 3.9 | 4.53 | 3.87 | 5.85M |
| July 01, 2026 | 4.39 | 4.22 | 4.22 | 4.52 | 4.2 | 5.11M |
| June 30, 2026 | 4.32 | 4.48 | 4.48 | 4.62 | 4.31 | 4.82M |
| June 29, 2026 | 4.02 | 4.32 | 4.32 | 4.33 | 3.9 | 6.51M |
| June 26, 2026 | 3.71 | 3.82 | 3.82 | 3.92 | 3.65 | 10.81M |
| June 25, 2026 | 4.01 | 3.79 | 3.79 | 4.01 | 3.64 | 6.31M |
| June 24, 2026 | 4.1 | 3.85 | 3.85 | 4.23 | 3.73 | 7.41M |
| June 23, 2026 | 4.35 | 4.05 | 4.05 | 4.43 | 4.04 | 8.31M |
| June 22, 2026 | 4.92 | 4.57 | 4.57 | 4.96 | 4.53 | 6.39M |
| June 18, 2026 | 5.11 | 4.93 | 4.93 | 5.16 | 4.74 | 15.62M |
| June 17, 2026 | 4.95 | 4.86 | 4.86 | 5.2 | 4.83 | 5.08M |