If you invested $1000 in Proto Labs, Inc. (PRLB) 10 years ago, it would be worth $1,377.06 as of August 02, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $945.45, while $1000 invested 1 year ago would be worth $1,731.26. This corresponds to total returns of 37.71%, -5.45%, 73.13%, respectively, with annualized returns of 3.25%, -1.11%, 73.13%.
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 |
|---|---|---|---|---|---|---|
| July 31, 2026 | 80 | 75.05 | 75.05 | 83 | 73.47 | 286,605 |
| July 30, 2026 | 72.77 | 75.14 | 75.14 | 75.72 | 72.77 | 134,429 |
| July 29, 2026 | 74.4 | 71.35 | 71.35 | 74.83 | 71.29 | 223,244 |
| July 28, 2026 | 76.87 | 74.88 | 74.88 | 77.75 | 74.79 | 166,676 |
| July 27, 2026 | 78.75 | 77.64 | 77.64 | 79.45 | 76.8 | 140,542 |
| July 23, 2026 | 78.47 | 78.62 | 78.62 | 80.36 | 77.96 | 134,608 |
| July 22, 2026 | 79.74 | 79.73 | 79.73 | 81.7 | 79 | 129,529 |
| July 21, 2026 | 78.57 | 80.85 | 80.85 | 80.93 | 78 | 125,882 |
| July 20, 2026 | 78.52 | 77.11 | 77.11 | 79.15 | 77.08 | 124,013 |
| July 17, 2026 | 75.03 | 77.62 | 77.62 | 78.56 | 74.28 | 192,795 |
| July 16, 2026 | 76.18 | 77.36 | 77.36 | 78.81 | 75.98 | 179,495 |
| July 15, 2026 | 77.21 | 77.16 | 77.16 | 77.88 | 75.5 | 210,232 |
| July 14, 2026 | 75.9 | 76.98 | 76.98 | 77.09 | 74.8 | 200,261 |
| July 13, 2026 | 73.65 | 74.72 | 74.72 | 75.02 | 73.45 | 186,181 |
| July 10, 2026 | 75.12 | 74.4 | 74.4 | 76.19 | 73.88 | 164,961 |
| July 09, 2026 | 74.32 | 75.18 | 75.18 | 76.06 | 73 | 384,970 |
| July 08, 2026 | 73.34 | 72.96 | 72.96 | 74.29 | 71.01 | 325,502 |
| July 07, 2026 | 77.04 | 74.36 | 74.36 | 77.04 | 73.47 | 295,270 |
| July 06, 2026 | 76.74 | 77.14 | 77.14 | 77.16 | 75.92 | 293,656 |
| July 02, 2026 | 78.95 | 76.4 | 76.4 | 79.17 | 75.38 | 181,151 |
| July 01, 2026 | 80.62 | 78.74 | 78.74 | 81.26 | 78.39 | 172,522 |
| June 30, 2026 | 79.95 | 81.51 | 81.51 | 82.19 | 79.95 | 214,057 |
| June 29, 2026 | 79.88 | 79.79 | 79.79 | 81.3 | 79.43 | 193,972 |
| June 26, 2026 | 80.56 | 80.69 | 80.69 | 80.79 | 78.63 | 809,669 |
| June 25, 2026 | 80.86 | 81.22 | 81.22 | 82.37 | 80.42 | 190,132 |
| June 24, 2026 | 79.84 | 79.83 | 79.83 | 81.44 | 78.31 | 220,575 |
| June 23, 2026 | 79.87 | 79.81 | 79.81 | 81 | 79.23 | 197,393 |
| June 22, 2026 | 81.5 | 81.68 | 81.68 | 82.15 | 80.53 | 214,173 |
| June 18, 2026 | 81.29 | 81.06 | 81.06 | 82.09 | 79.6 | 455,900 |
| June 17, 2026 | 79.18 | 79.57 | 79.57 | 80.49 | 77.58 | 354,400 |
| June 16, 2026 | 79.32 | 78.74 | 78.74 | 83.15 | 78.66 | 212,258 |
| June 15, 2026 | 80.51 | 78.53 | 78.53 | 81.29 | 78.33 | 185,619 |
| June 12, 2026 | 78.2 | 78.94 | 78.94 | 79.48 | 77.11 | 179,069 |
| June 11, 2026 | 75.09 | 77.96 | 77.96 | 78 | 73.19 | 232,942 |
| June 10, 2026 | 75 | 73.78 | 73.78 | 76.42 | 73.77 | 254,734 |
| June 09, 2026 | 77.16 | 75.48 | 75.48 | 78.68 | 72.9 | 216,690 |
| June 08, 2026 | 73.65 | 76.14 | 76.14 | 76.36 | 73.49 | 284,547 |
| June 05, 2026 | 73.96 | 72.64 | 72.64 | 75.47 | 72.17 | 191,552 |
| June 04, 2026 | 74.67 | 74.8 | 74.8 | 75.5 | 73.69 | 157,100 |
| June 03, 2026 | 77.9 | 74.67 | 74.67 | 78.44 | 74.01 | 243,164 |
| June 02, 2026 | 76.14 | 78.25 | 78.25 | 78.41 | 76.14 | 179,394 |
| June 01, 2026 | 74.68 | 75.84 | 75.84 | 76.3 | 73.81 | 182,582 |
| May 29, 2026 | 74.99 | 75.76 | 75.76 | 76.4 | 74.73 | 227,199 |
| May 28, 2026 | 72.63 | 74.73 | 74.73 | 75.57 | 72.33 | 215,834 |
| May 27, 2026 | 74.41 | 74.39 | 74.39 | 74.75 | 73.54 | 123,505 |
| May 26, 2026 | 71.93 | 73.94 | 73.94 | 74.98 | 71.93 | 172,047 |
| May 22, 2026 | 70.23 | 71.36 | 71.36 | 71.83 | 70.23 | 27,125 |
| May 21, 2026 | 70.46 | 69.75 | 69.75 | 70.85 | 68.08 | 188,018 |
| May 20, 2026 | 70.98 | 71.13 | 71.13 | 72.64 | 70.45 | 203,817 |
| May 19, 2026 | 71.26 | 70.16 | 70.16 | 71.64 | 69.37 | 185,810 |
| May 18, 2026 | 72.27 | 72.24 | 72.24 | 72.99 | 71.42 | 159,950 |
| May 15, 2026 | 71.25 | 72.01 | 72.01 | 72.73 | 69.87 | 270,379 |
| May 14, 2026 | 72.49 | 72.57 | 72.57 | 73.11 | 71.14 | 157,336 |
| May 13, 2026 | 71.18 | 71.85 | 71.85 | 72.53 | 70.37 | 210,665 |
| May 12, 2026 | 70.12 | 71.02 | 71.02 | 71.55 | 67.06 | 231,712 |
| May 11, 2026 | 69.19 | 70.95 | 70.95 | 71.36 | 68.05 | 227,965 |
| May 08, 2026 | 68.51 | 69.3 | 69.3 | 69.42 | 67.58 | 141,543 |
| May 07, 2026 | 69.74 | 68.18 | 68.18 | 70 | 67.33 | 123,878 |
| May 06, 2026 | 69 | 68.89 | 68.89 | 69.18 | 67.07 | 169,976 |
| May 05, 2026 | 64.94 | 67.69 | 67.69 | 68.49 | 64.39 | 207,888 |