price
ER
NASDAQ · ERII
Energy Recovery, Inc.
Industrials · Industrial - Pollution & Treatment Controls
$6.73
Down-$0.35 (-4.94%)
Updated Oct 8, 2026, 4:08 AM
SID Score
3.5/10
Composite research score
Smart Money
—
Institutional and insider signal
- Market cap
- 773.39M
- P/E ratio
- 39.76
- Dividend yield
- 0.00%
- 52-week range
- $6.60 – $11.72
- Volume
- 688.98K
- Avg. volume
- 512.62K
Price performance · ERII
ERII price history
1M range · 21 trading sessions · Daily adjusted prices
Prices through Oct 7, 2026
ERII closed at $6.73 after 21 trading sessions, down 8.81% for the selected period.
- Last close
- $6.73
- Period change
- -8.81%
- Period low
- $6.67
- Period high
- $7.55
Daily close
View OHLC price history
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 7, 2026 | $6.94 | $6.945 | $6.6316 | $6.73 | 688.98K |
| Oct 6, 2026 | $6.90 | $7.145 | $6.87 | $7.08 | 1.39M |
| Oct 5, 2026 | $6.75 | $6.84 | $6.63 | $6.83 | 872.15K |
| Oct 2, 2026 | $6.81 | $6.825 | $6.71 | $6.77 | 618.16K |
| Oct 1, 2026 | $6.68 | $6.765 | $6.60 | $6.70 | 725.71K |
| Sep 30, 2026 | $6.75 | $6.775 | $6.66 | $6.67 | 824.64K |
| Sep 29, 2026 | $6.75 | $6.82 | $6.70 | $6.75 | 689.56K |
| Sep 28, 2026 | $6.78 | $6.79 | $6.60 | $6.72 | 931.38K |
| Sep 25, 2026 | $6.83 | $6.895 | $6.77 | $6.81 | 681.67K |
| Sep 24, 2026 | $6.76 | $6.84 | $6.69 | $6.83 | 800.54K |
| Sep 23, 2026 | $7.06 | $7.06 | $6.775 | $6.80 | 777.8K |
| Sep 22, 2026 | $7.06 | $7.135 | $6.95 | $7.12 | 754.24K |
| Sep 21, 2026 | $7.00 | $7.07 | $6.91 | $7.03 | 985.9K |
| Sep 18, 2026 | $6.97 | $7.06 | $6.885 | $6.99 | 1.95M |
| Sep 17, 2026 | $7.19 | $7.204 | $6.955 | $7.05 | 656.44K |
| Sep 16, 2026 | $7.08 | $7.325 | $7.05 | $7.10 | 913.48K |
| Sep 15, 2026 | $7.11 | $7.1194 | $6.895 | $7.06 | 1.29M |
| Sep 14, 2026 | $7.18 | $7.27 | $6.93 | $7.09 | 2.02M |
| Sep 11, 2026 | $7.39 | $7.59 | $7.325 | $7.55 | 929.29K |
| Sep 10, 2026 | $7.35 | $7.415 | $7.25 | $7.27 | 810.72K |
| Sep 9, 2026 | $7.64 | $7.68 | $7.33 | $7.38 | 922.8K |
Latest ERII news
The latest Smart Investors Daily articles mentioning ERII.
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