Energy Recovery, Inc. (ERII) NASDAQ
Currency In USD
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Currency In USD
If you invested $1000 in Energy Recovery, Inc. (ERII) 10 years ago, it would be worth $583.01 as of September 13, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $351.65, while $1000 invested 1 year ago would be worth $518.9. This corresponds to total returns of -41.7%, -64.83%, -48.11%, respectively, with annualized returns of -5.25%, -18.85%, -48.11%.
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 | 7.33 | 7.55 | 7.55 | 7.59 | 7.33 | 928,823 |
| September 10, 2026 | 7.35 | 7.27 | 7.27 | 7.42 | 7.25 | 810,715 |
| September 09, 2026 | 7.64 | 7.38 | 7.38 | 7.68 | 7.33 | 922,706 |
| September 08, 2026 | 7.57 | 7.7 | 7.7 | 7.79 | 7.49 | 1.14M |
| September 04, 2026 | 7.62 | 7.63 | 7.63 | 7.75 | 7.6 | 642,883 |
| September 03, 2026 | 7.64 | 7.65 | 7.65 | 7.72 | 7.53 | 802,366 |
| September 02, 2026 | 7.75 | 7.58 | 7.58 | 7.76 | 7.53 | 945,731 |
| September 01, 2026 | 7.65 | 7.73 | 7.73 | 7.77 | 7.6 | 1.29M |
| August 31, 2026 | 7.73 | 7.71 | 7.71 | 7.8 | 7.63 | 3.24M |
| August 28, 2026 | 7.92 | 7.77 | 7.77 | 8.05 | 7.76 | 683,798 |
| August 27, 2026 | 7.9 | 7.9 | 7.9 | 7.96 | 7.76 | 566,859 |
| August 26, 2026 | 7.86 | 7.94 | 7.94 | 8.02 | 7.82 | 682,588 |
| August 25, 2026 | 7.84 | 7.85 | 7.85 | 7.9 | 7.74 | 583,654 |
| August 24, 2026 | 7.88 | 7.8 | 7.8 | 7.88 | 7.63 | 810,168 |
| August 21, 2026 | 7.82 | 7.9 | 7.9 | 7.94 | 7.76 | 505,783 |
| August 20, 2026 | 7.79 | 7.75 | 7.75 | 7.86 | 7.58 | 1.02M |
| August 19, 2026 | 7.86 | 7.91 | 7.91 | 8 | 7.78 | 0 |
| August 18, 2026 | 8.06 | 7.88 | 7.88 | 8.12 | 7.74 | 1M |
| August 17, 2026 | 8.35 | 8.14 | 8.14 | 8.38 | 8.09 | 1.18M |
| August 14, 2026 | 7.91 | 8.35 | 8.35 | 8.39 | 7.76 | 1.35M |
| August 13, 2026 | 7.76 | 7.82 | 7.82 | 7.84 | 7.51 | 1.28M |
| August 12, 2026 | 7.8 | 7.78 | 7.78 | 7.93 | 7.74 | 0 |
| August 11, 2026 | 7.99 | 7.72 | 7.72 | 8.05 | 7.71 | 0 |
| August 10, 2026 | 8.7 | 7.99 | 7.99 | 8.73 | 7.87 | 913,825 |
| August 07, 2026 | 8.86 | 8.68 | 8.68 | 8.91 | 8.57 | 976,273 |
| August 06, 2026 | 8.36 | 8.73 | 8.73 | 8.81 | 8.31 | 1.33M |
| August 05, 2026 | 9.11 | 8.86 | 8.86 | 9.34 | 8.8 | 909,828 |
| August 04, 2026 | 9.03 | 9.12 | 9.12 | 9.16 | 8.87 | 951,075 |
| August 03, 2026 | 8.79 | 8.91 | 8.91 | 8.92 | 8.56 | 1.28M |
| July 31, 2026 | 8.5 | 8.65 | 8.65 | 8.66 | 8.31 | 1.45M |
| July 30, 2026 | 8.28 | 8.43 | 8.43 | 8.46 | 8.16 | 847,260 |
| July 29, 2026 | 8.3 | 8.14 | 8.14 | 8.39 | 7.86 | 1.51M |
| July 28, 2026 | 8.56 | 8.4 | 8.4 | 8.73 | 8.35 | 688,119 |
| July 27, 2026 | 8.45 | 8.52 | 8.52 | 8.66 | 8.37 | 767,380 |
| July 24, 2026 | 8.46 | 8.42 | 8.42 | 8.56 | 8.36 | 514,134 |
| July 23, 2026 | 8.43 | 8.41 | 8.41 | 8.61 | 8.37 | 546,312 |
| July 22, 2026 | 8.62 | 8.54 | 8.54 | 8.68 | 8.47 | 608,112 |
| July 21, 2026 | 8.52 | 8.62 | 8.62 | 8.74 | 8.52 | 596,394 |
| July 20, 2026 | 8.65 | 8.48 | 8.48 | 8.68 | 8.46 | 558,451 |
| July 17, 2026 | 8.68 | 8.62 | 8.62 | 8.97 | 8.52 | 741,266 |
| July 16, 2026 | 8.56 | 8.7 | 8.7 | 8.73 | 8.5 | 594,321 |
| July 15, 2026 | 8.71 | 8.62 | 8.62 | 8.85 | 8.44 | 699,432 |
| July 14, 2026 | 8.68 | 8.66 | 8.66 | 8.75 | 8.59 | 570,228 |
| July 13, 2026 | 8.73 | 8.66 | 8.66 | 8.86 | 8.55 | 893,084 |
| July 10, 2026 | 8.91 | 8.73 | 8.73 | 8.91 | 8.67 | 676,658 |
| July 09, 2026 | 8.6 | 8.93 | 8.93 | 8.96 | 8.57 | 955,394 |
| July 08, 2026 | 8.61 | 8.62 | 8.62 | 8.72 | 8.56 | 660,002 |
| July 07, 2026 | 8.9 | 8.8 | 8.8 | 8.95 | 8.58 | 537,745 |
| July 06, 2026 | 8.87 | 9 | 9 | 9.04 | 8.8 | 415,546 |
| July 02, 2026 | 8.94 | 8.84 | 8.84 | 9.06 | 8.79 | 646,892 |
| July 01, 2026 | 8.98 | 8.9 | 8.9 | 9.23 | 8.89 | 668,896 |
| June 30, 2026 | 8.89 | 9.02 | 9.02 | 9.07 | 8.7 | 915,270 |
| June 29, 2026 | 8.96 | 8.81 | 8.81 | 9 | 8.75 | 873,563 |
| June 26, 2026 | 8.7 | 8.82 | 8.82 | 9.05 | 8.68 | 1.59M |
| June 25, 2026 | 8.89 | 8.79 | 8.79 | 8.95 | 8.73 | 709,567 |
| June 24, 2026 | 8.93 | 8.77 | 8.77 | 9.11 | 8.74 | 924,444 |
| June 23, 2026 | 8.6 | 8.86 | 8.86 | 9.02 | 8.54 | 621,208 |
| June 22, 2026 | 9.42 | 8.9 | 8.9 | 9.42 | 8.85 | 1.27M |
| June 18, 2026 | 9.54 | 9.42 | 9.42 | 9.91 | 9.16 | 3.55M |
| June 17, 2026 | 8.6 | 8.99 | 8.99 | 9.67 | 8.57 | 2.31M |