Energy Recovery's book value per share for the quarter that ended in Mar. 2026 was $3.54.
During the past 12 months, Energy Recovery's average Book Value Per Share Growth Rate was -2.00% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 5.70% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 5.90% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 13.60% per year.
Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the book value growth rate using book value per share data.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Energy Recovery was 171.70% per year. The lowest was -10.90% per year. And the median was 8.30% per year.
Energy Recovery's current price is $8.85. Its book value per share for the quarter that ended in Mar. 2026 was $3.54. Hence, today's PB Ratio of Energy Recovery is 2.50.
During the past 13 years, the highest P/B Ratio of Energy Recovery was 14.31. The lowest was 2.26. And the median was 4.78.
Good Sign:
Energy Recovery Inc stock PB Ratio (=2.5) is close to 10-year low of 2.26.
Energy Recovery (NAS:ERII) Book Value per Share Explanation
Usually a company's book value and Tangible Book per Share may not reflect its true value. The assets may be carried on the balance sheets at the original cost minus depreciation. This may underestimate the true economic values of the assets. It also may over-estimate their true economic value because the assets can become obsolete.
For financial companies such as banks and insurance companies, their assets may be reported in current market value of the assets owned. Book values of financial companies are more accurate indicator of the economic value of the company.
Energy Recovery Book Value per Share Related Terms
Energy Recovery Book Value per Share Historical Data
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The historical data trend for Energy Recovery's Book Value per Share can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
ERII vs ARQ, FTEK, BCHT: Book Value per Share Comparison
For the Pollution & Treatment Controls subindustry, Energy Recovery's PB Ratio, along with its competitors' market caps and PB Ratio data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Energy Recovery PB Ratio vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Energy Recovery's PB Ratio distribution charts can be found below:
* The bar in red indicates where Energy Recovery's PB Ratio falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Energy Recovery (ERII) has a Book Value per Share of $3.54 as of Mar. 2026. Book value per share gives the per-share value of a company's stockholder equity. View historical data on Energy Recovery and its competitors.
Is Energy Recovery's Book Value per Share too high?
Energy Recovery's current Book Value per Share is $3.54. Overall, Energy Recovery has a GF Score™ of 66/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Energy Recovery's Book Value per Share compare to ARQ and FTEK?
Energy Recovery's Book Value per Share of $3.54 can be compared against companies in the Industrial Products industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Book Value per Share for an Industrial Products company?
A good Book Value per Share depends on the Industrial Products industry context. However, Book Value per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Book Value per Share mean?
A high Book Value per Share can signal that a stock is expensive relative to its fundamentals. Book value per share gives the per-share value of a company's stockholder equity. View historical data on Energy Recovery and its competitors. Energy Recovery's current Book Value per Share is $3.54. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Energy Recovery stock overvalued right now?
Based on GuruFocus' analysis, Energy Recovery (ERII) is currently considered Significantly Undervalued. The stock's GF Value™ is $14.64, compared to a current price of $8.85 — trading 39.5% below its estimated fair value. The current Book Value per Share is $3.54. Energy Recovery's overall GF Score™ is 66/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Book Value per Share calculated?
Book Value per Share is calculated from a company's financial statements. For Energy Recovery (ERII), the current Book Value per Share is $3.54 as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Energy Recovery (ERII) Overvalued in 2026?
Based on GuruFocus' analysis, Energy Recovery stock appears to be undervalued.
The current stock price of $8.85 is trading 39.5% below its estimated GF Value™ of $14.64.
GuruFocus considers Energy Recovery to be Significantly Undervalued.
Key valuation signals for ERII:
Book Value per Share: $3.54
GF Value™: $14.64 vs. price of $8.85 (39.5% below fair value)
No single metric tells the full story. See the ERII stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Energy Recovery Inc designs and manufactures energy-saving technologies. The firm uses its proprietary pressure exchanger technology to help customers in multiple industries improve their operations and lower their emissions. Using its proprietary technology, it offers energy recovery devices, including pressure exchangers, pumps, and turbochargers, mainly used for seawater desalination and wastewater treatment. Additionally, the company is involved in the development of emerging technologies, such as the PX G1300 used in industrial and commercial refrigeration applications. The firm's reportable operating segments are: Water, which generates maximum revenue, and Emerging Technologies. Geographically, it generates maximum revenue from the Middle East, and the rest from other markets.
66GF Score
Get the complete analysis for ERII
Book Value per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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