Energy Recovery, Inc. (ERII)
NASDAQ: ERII · Real-Time Price · USD
6.84
0.00 (0.00%)
At close: Oct 9, 2026, 4:00 PM EDT
6.97
+0.13 (1.90%)
After-hours: Oct 9, 2026, 7:53 PM EDT
Energy Recovery Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 9, 2026 | 6.84 | 6.88 | 6.73 | 6.84 | 6.84 | - | 461,451 |
| Oct 8, 2026 | 6.76 | 6.92 | 6.69 | 6.84 | 6.84 | 1.63% | 1,149,120 |
| Oct 7, 2026 | 6.94 | 6.95 | 6.63 | 6.73 | 6.73 | -4.94% | 688,976 |
| Oct 6, 2026 | 6.90 | 7.15 | 6.87 | 7.08 | 7.08 | 3.66% | 1,386,152 |
| Oct 5, 2026 | 6.75 | 6.84 | 6.63 | 6.83 | 6.83 | 0.89% | 872,148 |
| Oct 2, 2026 | 6.81 | 6.83 | 6.71 | 6.77 | 6.77 | 1.04% | 618,150 |
| Oct 1, 2026 | 6.68 | 6.77 | 6.60 | 6.70 | 6.70 | 0.45% | 725,468 |
| Sep 30, 2026 | 6.75 | 6.78 | 6.66 | 6.67 | 6.67 | -1.19% | 824,622 |
| Sep 29, 2026 | 6.75 | 6.82 | 6.70 | 6.75 | 6.75 | 0.45% | 689,491 |
| Sep 28, 2026 | 6.78 | 6.79 | 6.60 | 6.72 | 6.72 | -1.32% | 931,276 |
| Sep 25, 2026 | 6.83 | 6.90 | 6.77 | 6.81 | 6.81 | -0.29% | 681,666 |
| Sep 24, 2026 | 6.76 | 6.84 | 6.69 | 6.83 | 6.83 | 0.44% | 800,471 |
| Sep 23, 2026 | 7.06 | 7.06 | 6.78 | 6.80 | 6.80 | -4.49% | 777,804 |
| Sep 22, 2026 | 7.06 | 7.14 | 6.95 | 7.12 | 7.12 | 1.28% | 754,236 |
| Sep 21, 2026 | 7.00 | 7.07 | 6.91 | 7.03 | 7.03 | 0.57% | 985,904 |
| Sep 18, 2026 | 6.97 | 7.06 | 6.89 | 6.99 | 6.99 | -0.85% | 1,947,844 |
| Sep 17, 2026 | 7.19 | 7.20 | 6.96 | 7.05 | 7.05 | -0.70% | 656,437 |
| Sep 16, 2026 | 7.08 | 7.33 | 7.05 | 7.10 | 7.10 | 0.57% | 913,482 |
| Sep 15, 2026 | 7.11 | 7.12 | 6.90 | 7.06 | 7.06 | -0.42% | 1,293,406 |
| Sep 14, 2026 | 7.18 | 7.27 | 6.93 | 7.09 | 7.09 | -6.09% | 2,016,328 |
| Sep 11, 2026 | 7.39 | 7.59 | 7.33 | 7.55 | 7.55 | 3.85% | 929,289 |
| Sep 10, 2026 | 7.35 | 7.42 | 7.25 | 7.27 | 7.27 | -1.49% | 810,721 |
| Sep 9, 2026 | 7.64 | 7.68 | 7.33 | 7.38 | 7.38 | -4.16% | 922,804 |
| Sep 8, 2026 | 7.57 | 7.79 | 7.49 | 7.70 | 7.70 | 0.92% | 1,140,833 |
| Sep 4, 2026 | 7.62 | 7.75 | 7.60 | 7.63 | 7.63 | -0.26% | 642,916 |
| Sep 3, 2026 | 7.64 | 7.72 | 7.53 | 7.65 | 7.65 | 0.92% | 802,475 |
| Sep 2, 2026 | 7.75 | 7.76 | 7.53 | 7.58 | 7.58 | -1.94% | 947,745 |
| Sep 1, 2026 | 7.65 | 7.77 | 7.60 | 7.73 | 7.73 | 0.26% | 1,293,399 |
| Aug 31, 2026 | 7.73 | 7.80 | 7.63 | 7.71 | 7.71 | -0.77% | 3,244,517 |
| Aug 28, 2026 | 7.92 | 8.05 | 7.76 | 7.77 | 7.77 | -1.65% | 683,899 |
| Aug 27, 2026 | 7.90 | 7.96 | 7.76 | 7.90 | 7.90 | -0.50% | 567,145 |
| Aug 26, 2026 | 7.86 | 8.02 | 7.82 | 7.94 | 7.94 | 1.15% | 684,123 |
| Aug 25, 2026 | 7.84 | 7.90 | 7.74 | 7.85 | 7.85 | 0.64% | 584,442 |
| Aug 24, 2026 | 7.90 | 7.90 | 7.63 | 7.80 | 7.80 | -1.27% | 811,467 |
| Aug 21, 2026 | 7.82 | 7.94 | 7.76 | 7.90 | 7.90 | 1.94% | 506,159 |
| Aug 20, 2026 | 7.79 | 7.86 | 7.58 | 7.75 | 7.75 | -1.96% | 1,019,220 |
| Aug 19, 2026 | 7.86 | 8.00 | 7.78 | 7.91 | 7.91 | 0.32% | 889,931 |
| Aug 18, 2026 | 8.06 | 8.12 | 7.74 | 7.88 | 7.88 | -3.19% | 1,003,799 |
| Aug 17, 2026 | 8.35 | 8.38 | 8.09 | 8.14 | 8.14 | -2.51% | 1,177,645 |
| Aug 14, 2026 | 7.91 | 8.39 | 7.76 | 8.35 | 8.35 | 6.78% | 1,353,847 |
| Aug 13, 2026 | 7.76 | 7.84 | 7.51 | 7.82 | 7.82 | 0.51% | 1,276,569 |
| Aug 12, 2026 | 7.77 | 7.93 | 7.74 | 7.78 | 7.78 | 0.78% | 714,916 |
| Aug 11, 2026 | 7.99 | 8.05 | 7.71 | 7.72 | 7.72 | -3.38% | 1,164,412 |
| Aug 10, 2026 | 8.70 | 8.73 | 7.87 | 7.99 | 7.99 | -7.95% | 913,829 |
| Aug 7, 2026 | 8.86 | 8.92 | 8.57 | 8.68 | 8.68 | -0.57% | 976,275 |
| Aug 6, 2026 | 8.36 | 8.81 | 8.31 | 8.73 | 8.73 | -1.47% | 1,334,061 |
| Aug 5, 2026 | 9.11 | 9.34 | 8.80 | 8.86 | 8.86 | -2.85% | 914,835 |
| Aug 4, 2026 | 9.03 | 9.17 | 8.87 | 9.12 | 9.12 | 2.36% | 951,169 |
| Aug 3, 2026 | 8.79 | 8.92 | 8.56 | 8.91 | 8.91 | 3.01% | 1,278,502 |
| Jul 31, 2026 | 8.50 | 8.66 | 8.31 | 8.65 | 8.65 | 2.61% | 1,452,149 |