What is Energy Recovery's book value per share?

Energy Recovery (ERII) reported book value per share of $3.50 in Q1 2026.

How has Energy Recovery's book value per share changed year-over-year?

Energy Recovery's book value per share decreased by 3.0% year-over-year, from $3.61 to $3.50.

What is the long-term trend for Energy Recovery's book value per share?

Over 5 years (2020 to 2025), Energy Recovery's book value per share has grown at a 4.7% compound annual growth rate (CAGR), from $3.03 to $3.81.

What does book value per share mean?

Shareholders' equity divided by diluted shares outstanding at the quarter end. The accounting (book) value attributable to each share.

Energy Recovery ERII Book value per share

Book value per share at other companies

Ceco EnvironmentalCECO

$8.75+12.3%

FlowserveFLS

$17.20+9.7%

PentairPNR

$23.27+6.5%

WBI

WaterBridge Infrastructure LLCWBI

$5.32—

Chart IndustriesGTLS

$65.98-0.5%

Matrix Service CompanyMTRX

$4.89-9.8%

Other financials

Income statement

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Revenue$9.7M+20.3%

Gross profit$2.7M-39.4%

Operating income-$14.9M-18.3%

Net income-$12.3M-24.0%

EPS (diluted)-$0.23-27.8%

Balance sheet

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Cash & equivalents$50.1M+1.7%

Total debt$8.8M-20.4%

Total equity$184.3M-7.0%

Total assets$209.0M-7.3%

Cash flow

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Operating cash flow$21.0M+97.0%

CapEx$814.0K+326%

Free cash flow$20.2M+92.8%

Valuation

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Market cap$453.08M-30.8%

Enterprise value$411.81M-33.2%

P/E22×-8.6×

P/S3.3×-1.3×

Profitability

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Gross margin63.1%-3.8pp

Operating margin15.8%+3.0pp

Net margin15.1%-0.1pp

FCF margin25%—

Returns & leverage

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Return on equity10.8%+0.4pp

Debt / equity0×0.0×

Current ratio9.3×+0.9×

Where this comes from

Calculated from Energy Recovery’s reported figures.

total stockholders equity/weighted shares diluted=$3.50

Based on the most recent quarter.

The official record: Energy Recovery’s 10-Q, filed May 6, 2026, on SEC EDGAR. View the filing →

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Questions, answered.

What is Energy Recovery's book value per share?: Energy Recovery (ERII) reported book value per share of $3.50 in Q1 2026.
How has Energy Recovery's book value per share changed year-over-year?: Energy Recovery's book value per share decreased by 3.0% year-over-year, from $3.61 to $3.50.
What is the long-term trend for Energy Recovery's book value per share?: Over 5 years (2020 to 2025), Energy Recovery's book value per share has grown at a 4.7% compound annual growth rate (CAGR), from $3.03 to $3.81.
What does book value per share mean?: Shareholders' equity divided by diluted shares outstanding at the quarter end. The accounting (book) value attributable to each share.