price
ER
NASDAQ · ERII
Energy Recovery, Inc.
Industrials · Industrial - Pollution & Treatment Controls
$7.27
Up+$0.28 (+3.85%)
Updated Sep 11, 2026, 10:46 PM
SID Score
3.4/10
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
- $7.25 – $11.72
- Volume
- 810.72K
- Avg. volume
- 512.62K
Price performance
ERII price history
1M range · 20 trading sessions · Daily adjusted prices
ERII closed at $7.27 after 20 trading sessions, down 7.03% for the selected period.
- Last close
- $7.27
- Period change
- -7.03%
- Period low
- $7.27
- Period high
- $8.35
Daily close
View OHLC price history
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| 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 |
| Sep 8, 2026 | $7.57 | $7.79 | $7.49 | $7.70 | 1.14M |
| Sep 4, 2026 | $7.62 | $7.75 | $7.60 | $7.63 | 642.92K |
| Sep 3, 2026 | $7.64 | $7.72 | $7.53 | $7.65 | 802.48K |
| Sep 2, 2026 | $7.75 | $7.76 | $7.53 | $7.58 | 947.75K |
| Sep 1, 2026 | $7.65 | $7.77 | $7.60 | $7.73 | 1.29M |
| Aug 31, 2026 | $7.73 | $7.80 | $7.625 | $7.71 | 3.24M |
| Aug 28, 2026 | $7.92 | $8.05 | $7.76 | $7.77 | 683.9K |
| Aug 27, 2026 | $7.90 | $7.955 | $7.76 | $7.90 | 567.15K |
| Aug 26, 2026 | $7.86 | $8.015 | $7.82 | $7.94 | 684.12K |
| Aug 25, 2026 | $7.84 | $7.895 | $7.74 | $7.85 | 584.44K |
| Aug 24, 2026 | $7.90 | $7.90 | $7.6301 | $7.80 | 811.47K |
| Aug 21, 2026 | $7.82 | $7.94 | $7.76 | $7.90 | 506.16K |
| Aug 20, 2026 | $7.79 | $7.8563 | $7.58 | $7.75 | 1.02M |
| Aug 19, 2026 | $7.86 | $8.00 | $7.78 | $7.905 | 889.93K |
| Aug 18, 2026 | $8.06 | $8.12 | $7.735 | $7.88 | 1M |
| Aug 17, 2026 | $8.35 | $8.375 | $8.09 | $8.14 | 1.18M |
| Aug 14, 2026 | $7.91 | $8.39 | $7.755 | $8.35 | 1.35M |
| Aug 13, 2026 | $7.76 | $7.84 | $7.51 | $7.82 | 1.28M |
Latest ERII news
The latest Smart Investors Daily articles mentioning ERII.
Stock researchMarket Activity · Institutional Ownership
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