PB Ratio: 2.09

Basis: FMP quote market capitalization / book value attributable to common shareholders (matching reported total stockholders equity minus preferred stock). Source: stored company filings and market data; unavailable inputs remain N/A.

Is the P/B ratio high or low?

The P/B ratio of 2.09 is 60% below its estimated 5-year average of 5.24, near the low end of its estimated 5-year range (1.99–9.48).

As of 2026-10-06T14:36:55.984Z. 35.71% below its estimated 12-month average of 3.25.

ERII PB Ratio Metrics

P/B vs. estimated history

At 2.09, P/B is below its estimated 18-year median — higher than 16% of readings in its estimated 18-year history.

Historical values estimate market capitalization from statement-period weighted shares. Comparisons with the current quote-based value are approximate. Only filing versions delivered by FMP are available for the historical calculation.

Book Value Analysis

PB Ratio Formula & Definition

PB Ratio = Market Cap / (Total Shareholders' Equity − Preferred Stock)

The price-to-book ratio compares market capitalization to book value attributable to common shareholders (total equity minus preferred stock). Lower values can indicate a cheaper valuation relative to net assets.

Expanded definitions: Investopedia, Wikipedia, Corporate Finance Institute

PB Ratio FAQ

What is the P/B ratio for Energy Recovery, Inc. (ERII)?

The P/B ratio for ERII stock is 2.09.

Is Energy Recovery, Inc.'s P/B ratio high or low?

The P/B ratio of 2.09 is 60% below its estimated 5-year average of 5.24, near the low end of its estimated 5-year range (1.99–9.48).

What is the estimated TTM average P/B ratio for Energy Recovery, Inc. (ERII)?

The estimated TTM average P/B ratio for ERII stock is 3.25.

What is the estimated 3Y average P/B ratio for Energy Recovery, Inc. (ERII)?

The estimated 3Y average P/B ratio for ERII stock is 3.89.

What is the estimated 5Y average P/B ratio for Energy Recovery, Inc. (ERII)?

The estimated 5Y average P/B ratio for ERII stock is 5.24.

What is the estimated 10Y average P/B ratio for Energy Recovery, Inc. (ERII)?

The estimated 10Y average P/B ratio for ERII stock is 5.26.

What is the estimated 15Y average P/B ratio for Energy Recovery, Inc. (ERII)?

The estimated 15Y average P/B ratio for ERII stock is 4.57.

What is the estimated 20Y average P/B ratio for Energy Recovery, Inc. (ERII)?

The estimated 20Y average P/B ratio for ERII stock is 4.23.

Showing the most recent 260 of 4,563 data points. The chart above shows the full history.

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