Energy Recovery Inc. (ERII)
Showing Closing Date Range from Oct 8 to Nov 5, 2026 compared to Sep 9 to Oct 7, 2026.
Compare Last 28 Days with Previous Period
Investor Relations:ir.energyrecovery.com
Current Period Close
$7.17
Oct 08, 2026 - Nov 05, 2026
Previous Period Close
$6.73
Sep 09, 2026 - Oct 07, 2026
Net Comparison Delta
+$0.44 (+6.54%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(20 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Nov 04, 2026 | $7.17 | - | - | - |
| Nov 03, 2026 | $7.17 | - | - | - |
| Nov 02, 2026 | $7.18 | - | - | - |
| Oct 30, 2026 | $6.96 | Oct 07, 2026 | $6.73 | +3.42% |
| Oct 29, 2026 | $7.12 | Oct 06, 2026 | $7.08 | +0.56% |
| Oct 28, 2026 | $6.95 | Oct 05, 2026 | $6.83 | +1.76% |
| Oct 27, 2026 | $6.86 | Oct 02, 2026 | $6.77 | +1.33% |
| Oct 26, 2026 | $6.79 | Sep 25, 2026 | $6.81 | -0.29% |
| Oct 23, 2026 | $6.68 | Sep 24, 2026 | $6.83 | -2.20% |
| Oct 22, 2026 | $6.67 | Sep 23, 2026 | $6.80 | -1.91% |
| Oct 21, 2026 | $6.65 | Sep 22, 2026 | $7.12 | -6.60% |
| Oct 20, 2026 | $6.64 | Sep 21, 2026 | $7.03 | -5.55% |
| Oct 19, 2026 | $6.66 | Sep 18, 2026 | $6.99 | -4.72% |
| Oct 16, 2026 | $6.65 | Sep 17, 2026 | $7.05 | -5.67% |
| Oct 15, 2026 | $6.64 | Sep 16, 2026 | $7.10 | -6.48% |
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