Skip to main content
Energy Recovery, Inc. (ERII)
NASDAQ: ERII · Real-Time Price · USD
8.82
+0.03 (0.34%)
At close: Jun 26, 2026, 4:00 PM EDT
8.93
+0.11 (1.25%)
After-hours: Jun 26, 2026, 7:57 PM EDT

Energy Recovery Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Jun 26, 20268.709.058.688.828.820.34%1,588,587
Jun 25, 20268.898.958.738.798.790.23%710,100
Jun 24, 20268.939.118.758.778.77-1.02%925,136
Jun 23, 20268.609.028.548.868.86-0.45%621,385
Jun 22, 20269.429.428.858.908.90-5.52%1,374,033
Jun 18, 20269.549.919.169.429.424.78%3,558,242
Jun 17, 20268.609.678.578.998.994.78%2,479,981
Jun 16, 20268.769.078.548.588.58-2.05%1,535,699
Jun 15, 20268.529.068.438.768.765.16%2,072,791
Jun 12, 20268.198.418.158.338.331.71%720,085
Jun 11, 20267.978.247.838.198.193.41%839,568
Jun 10, 20268.098.117.897.927.92-2.46%523,224
Jun 9, 20268.078.307.968.128.121.88%689,807
Jun 8, 20268.038.157.837.977.97-0.50%669,483
Jun 5, 20268.298.308.008.018.01-3.38%584,578
Jun 4, 20268.158.398.068.298.293.11%753,656
Jun 3, 20268.138.358.008.048.04-1.71%1,098,078
Jun 2, 20268.068.308.068.188.182.25%725,344
Jun 1, 20268.128.207.948.008.00-2.08%984,950
May 29, 20268.438.528.098.178.17-5.33%892,124
May 28, 20268.598.718.508.638.63-0.58%557,474
May 27, 20268.818.818.578.688.68-1.03%493,418
May 26, 20268.929.008.718.778.77-0.90%806,924
May 22, 20268.678.868.618.858.852.67%825,755
May 21, 20268.558.728.378.628.62-0.35%648,302
May 20, 20268.488.738.398.658.652.25%916,782
May 19, 20269.009.088.448.468.46-6.62%933,493
May 18, 20268.639.278.619.069.067.73%1,335,538
May 15, 20268.458.648.208.418.41-2.44%1,247,806
May 14, 20268.408.648.188.628.623.73%4,776,151
May 13, 20268.738.778.148.318.31-4.81%3,479,848
May 12, 20268.708.828.538.738.730.34%1,391,431
May 11, 20269.219.338.628.708.70-4.71%1,588,861
May 8, 20269.679.679.039.139.13-3.18%1,548,704
May 7, 202611.1311.139.309.439.43-18.78%3,622,287
May 6, 202611.5111.7211.4811.6111.612.65%726,935
May 5, 202611.1111.4811.0711.3111.312.82%586,264
May 4, 202611.0211.1910.9711.0011.00-0.36%596,689
May 1, 202611.1111.1710.8511.0411.04-0.27%858,673
Apr 30, 202610.8411.1310.7511.0711.073.46%1,194,126
Apr 29, 202611.0711.1110.6210.7010.70-3.52%641,991
Apr 28, 202611.0011.1210.8111.0911.090.36%720,243
Apr 27, 202611.3011.4711.0311.0511.05-2.04%850,202
Apr 24, 202611.0011.3910.9511.2811.282.45%1,679,267
Apr 23, 202610.9011.1410.7511.0111.011.85%830,468
Apr 22, 202610.4610.8910.4610.8110.814.24%1,302,357
Apr 21, 202610.7410.8610.2310.3710.37-0.86%710,754
Apr 20, 202610.5010.6910.4310.4610.46-1.13%748,701
Apr 17, 202610.6610.7910.5110.5810.581.24%1,744,964
Apr 16, 202610.6210.7010.2810.4510.45-1.60%785,274
Apr 15, 202610.4810.8910.4810.6210.62-5.93%929,417
Apr 14, 202611.4111.5311.2711.2911.29-1.05%550,417
Apr 13, 202611.0911.5011.0511.4111.412.70%820,888
Apr 10, 202611.0011.2711.0011.1111.110.45%381,127
Apr 9, 202610.7211.1210.6711.0611.063.17%855,985
Apr 8, 202610.8110.9110.6110.7210.723.78%714,269
Apr 7, 202610.2810.4510.2510.3310.33-0.86%486,117
Apr 6, 202610.3410.4410.2010.4210.422.16%514,954
Apr 2, 202610.0210.419.8510.2010.20-0.20%1,097,921
Apr 1, 202610.3010.3110.0710.2210.221.49%695,211
Mar 31, 20269.9710.179.8210.0710.072.65%871,970
Mar 30, 202610.0010.029.769.819.81-0.61%655,348
Mar 27, 20269.879.989.769.879.87-0.70%549,190
Mar 26, 202610.0910.219.869.949.94-1.97%445,062
Mar 25, 202610.3610.439.9910.1410.14-0.29%493,272
Mar 24, 202610.0210.519.9710.1710.170.49%1,115,446
Mar 23, 20269.7710.169.5110.1210.126.98%1,996,436
Mar 20, 20269.799.869.359.469.46-2.77%1,899,113
Mar 19, 20269.769.919.659.739.73-1.82%797,460
Mar 18, 202610.1010.269.899.919.91-2.75%698,585
Mar 17, 202610.3210.3910.1010.1910.19-0.68%599,184
Mar 16, 202610.2410.3710.1210.2610.262.09%604,896
Mar 13, 202610.2810.469.8910.0510.05-1.86%813,713
Mar 12, 202610.5310.6410.1310.2410.24-5.01%831,214
Mar 11, 202610.8210.8910.6010.7810.78-0.83%656,839
Mar 10, 202611.1211.2210.7710.8710.87-2.25%1,013,844
Mar 9, 202610.8711.6110.3511.1211.124.81%1,763,144
Mar 6, 202610.6710.8110.3810.6110.61-1.12%905,456
Mar 5, 202610.6010.7810.5410.7310.730.09%870,179
Mar 4, 202610.4010.8110.2110.7210.724.89%928,411
Mar 3, 202610.0110.249.5910.2210.22-0.39%1,702,701
Mar 2, 202610.2910.369.8510.2610.26-1.63%940,752
Feb 27, 202610.4610.7910.0310.4310.43-1,196,606
Feb 26, 202611.4511.9710.2210.4310.43-35.30%4,519,644
Feb 25, 202616.1816.1815.7716.1216.120.31%459,531
Feb 24, 202616.1116.1615.8016.0716.070.06%299,907
Feb 23, 202616.1316.2715.7116.0616.06-1.11%369,146
Feb 20, 202616.0316.3015.8916.2416.241.18%272,239
Feb 19, 202615.7616.1215.7416.0516.051.90%279,699
Feb 18, 202615.8816.0015.6615.7515.75-0.88%291,434
Feb 17, 202615.5616.1015.4415.8915.891.86%333,370
Feb 13, 202615.4315.8115.4215.6015.601.50%309,264
Feb 12, 202615.6315.8915.3115.3715.37-0.45%235,113
Feb 11, 202615.7115.9015.3115.4415.44-0.96%246,764
Feb 10, 202615.7515.8315.5215.5915.59-1.39%286,396
Feb 9, 202615.5115.9015.2915.8115.812.20%273,755
Feb 6, 202615.1415.5815.1415.4715.472.38%304,475
Feb 5, 202614.9115.2814.8715.1115.110.87%233,231
Feb 4, 202615.0015.0714.7914.9814.981.15%211,591
Feb 3, 202614.9815.2014.5414.8114.81-0.94%381,049