ERII
Energy Recovery
PE ratio, current and historical analysis
- Stocks
- Industrials
- NASDAQ: ERII
- PE Ratio
As of Oct 1, 2026, the Energy Recovery stock's P/E ratio is 23.93. This takes into account the latest EPS of $0.28 and stock price of $6.7. The PE ratio has decreased by 29% from its last 4 quarters average of 33.9.
ERII PE ratio history
The PE ratio of Energy Recovery has averaged 51.62 over the last ten years. The current price-to-earnings ratio of 23.93 is 54% less than the historical average. Analyzing the last ten years, ERII's PE ratio reached its highest point in the Dec 2016 quarter at 147.86, when the price was $10.35 and the EPS was $0.07. The lowest point was recorded in the Jun 2018 quarter, when it reached 13.69 with a price of $8.08 and an EPS of $0.59.
Energy Recovery PE ratio by year
Maximum annual increase: 198.29% in 2019
Maximum annual decrease: -82.59% in 2017
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| 2025 | 31.37 | -14.64% | $13.49 | $0.43 |
| 2024 | 36.75 | -25.88% | $14.7 | $0.4 |
| 2023 | 49.58 | 4.05% | $18.84 | $0.38 |
| 2022 | 47.65 | -44.57% | $20.49 | $0.43 |
| 2021 | 85.96 | 196.21% | $21.49 | $0.25 |
| 2020 | 29.02 | -40.72% | $13.64 | $0.47 |
| 2019 | 48.95 | 198.29% | $9.79 | $0.2 |
| 2018 | 16.41 | -36.25% | $6.73 | $0.41 |
| 2017 | 25.74 | -82.59% | $8.75 | $0.34 |
| 2016 | 147.86 | N/A | $10.35 | $0.07 |
| 2015 | N/A | N/A | $7.07 | -$0.22 |
| 2014 | N/A | N/A | $5.27 | -$0.36 |
| 2013 | N/A | N/A | $5.55 | -$0.06 |
| 2012 | N/A | N/A | $3.4 | -$0.16 |
| 2011 | N/A | N/A | $2.58 | -$0.5 |
Energy Recovery PE ratio by quarter (TTM)
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| Jun 2026 | 32.21 | 21.55% | $9.02 | $0.28 |
| Mar 2026 | 26.5 | -15.52% | $10.07 | $0.38 |
| Dec 2025 | 31.37 | -30.83% | $13.49 | $0.43 |
| Sep 2025 | 45.35 | 49.03% | $15.42 | $0.34 |
| Jun 2025 | 30.43 | -29.15% | $12.78 | $0.42 |
| Mar 2025 | 42.95 | 16.87% | $15.89 | $0.37 |
| Dec 2024 | 36.75 | -26.04% | $14.7 | $0.4 |
| Sep 2024 | 49.69 | 38.34% | $17.39 | $0.35 |
| Jun 2024 | 35.92 | -20.37% | $13.29 | $0.37 |
| Mar 2024 | 45.11 | -9.02% | $15.79 | $0.35 |
| Dec 2023 | 49.58 | -34.55% | $18.84 | $0.38 |
| Sep 2023 | 75.75 | -45.8% | $21.21 | $0.28 |
| Jun 2023 | 139.75 | 15.19% | $27.95 | $0.2 |
| Mar 2023 | 121.32 | 154.61% | $23.05 | $0.19 |
| Dec 2022 | 47.65 | -38.63% | $20.49 | $0.43 |
ERII Price vs fair value
ERII average PE ratio chart
What this chart measures
The Historical Valuation Regime chart shows where the stock's current valuation sits relative to its own historical valuation range over the selected lookback period.
This is a history-relative tool, not a market-relative percentile. It does not compare the stock to other companies. Instead, it compares each historical valuation reading to the stock's own past readings.
Percentile logic
The threshold lines are calculated them from the stock's real historical values using percentile interpolation. That is why some colored bands are narrow while others are wide: the band widths reflect how the stock actually traded through time.
Regime map
| Historical percentile | Regime | Chart meaning |
|---|---|---|
| 0-10 | Historically Low | Deep cheap zone |
| >10-25 | Below Average | Cheap relative to history |
| >25-75 | Average | Within the normal historical range |
| >75-90 | Above Average | Expensive relative to history |
| >90-100 | Historically High | Extreme or stretched valuation |
How to read each part
| Chart element | What it tells you |
|---|---|
| Main line | The actual historical valuation values over time for the selected metric. |
| Dashed horizontal lines | The stock's computed P10, P25, Median, P75, and P90 thresholds for the selected period. |
| Colored bands | The historical valuation zones between those thresholds. |
| Metric boxes | Current ratio, historical median, current percentile, and current regime. |
| Timeline strip | A condensed regime history showing how the stock moved between cheap, fair, and expensive states across each observation. |
Important metric definitions
Current Percentile is the percentile rank of the latest valid historical observation within the selected lookback range.
Current Regime is assigned directly from the latest observation's percentile bucket using the fixed 10 / 25 / 75 / 90 cutoffs shown above.
How to use it well
This chart is most useful for answering a narrow question: Is this stock trading high, low, or normal relative to its own history? It works best alongside growth, profitability, and forward-looking business analysis, because a stock can deserve a higher or lower regime if its business quality has changed.
ERII's current PE ratio is under its 3, 5 and 10-year averages.
PE comparison
With a price to earnings (P/E) of 23.93, ERII stands higher than the industry average but lower than the Industrials sector and its peers average. But when looking at the Industrials sector average of 24.94, Energy Recovery's price to earnings (P/E) is only 4% lower.
ERII PE vs peers
Frequently asked questions
What is Energy Recovery's PE ratio?
ERII's price to earnings ratio is 23.93 as of Oct 1, 2026.
What is the 3-year average PE ratio for Energy Recovery (ERII)?
As an average over the last 3 years, ERII stock has a PE ratio of 38.71.
What is the 5-year average PE ratio for Energy Recovery (ERII)?
As an average over the last 5 years, ERII stock has a PE ratio of 60.05.
What is the highest PE ratio for ERII?
Over the last ten years, the Dec 2016 quarter recorded the highest quarterly PE ratio at 147.86.
How does the current PE ratio for ERII compare to its historical average?
ERII's price to earnings ratio is currently 54% below its 10-year historical average.
How is ERII's PE ratio calculated (Energy Recovery PE ratio formula)?
You can calculate the P/E ratio by dividing the most recent stock price by the trailing twelve months earnings per share(EPS). As of today (Oct 1, 2026), Energy Recovery's share price is $6.7. The company's earnings per share for the trailing twelve months (TTM) ending Jun 2026 is $0.28. Therefore, Energy Recovery's price to earnings ratio for today is 23.93. PE RATIO(23.93) = STOCK PRICE($6.7) / TTM EPS($0.28)
All PE ratio stats are based on quarterly TTM periods, unless otherwise specified.