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NASDAQ · Pollution & Treatment Controls · USD

Energy Recovery, Inc. (ERII) Stock Analysis

Energy Recovery, Inc. (ERII) is a Pollution & Treatment Controls stock listed on NASDAQ and quoted in US Dollar.

Last Updated: October 21, 2026

ERII

$6.65

+$0.01 (+0.15%)

Oct 21, 2026 · Market close

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Price History

Hover for the daily close. The dotted line marks the period open.

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ERII Key Statistics

As of Oct 21, 2026
Trading
Open
$6.72
Previous Close
$6.64
Day's Range
6.60–6.76
52-Week Range
6.58–18.32
Volume
616.29K
BetaHow much the share price moves relative to the wider market. 1.0 moves in line with it; above 1.0 swings more, below 1.0 less.
0.91
Valuation
Market Cap
$339.45M
P/E Ratio
25.58
Forward P/EShare price divided by forecast earnings for the year ahead, rather than the year just past.
19.85
PEG RatioThe P/E ratio divided by the expected earnings growth rate. It puts a high P/E in the context of how fast profits are growing.
3.33
P/S ratioMarket value divided by annual revenue. Useful for companies that are not yet profitable, where a P/E cannot be calculated.
2.82
EPS (ttm)Profit attributable to each share over the last twelve months.
0.26
Financials (FY)
Revenue (FY)
$134.99M−6.87%
Net Income (FY)
$22.96M−0.38%
Profit marginThe share of revenue left as profit after all costs and taxes.
12.72%
Shares OutstandingThe total number of shares held by all investors. Market value is this figure multiplied by the share price.
51.04M
1-Year Return
−61.25%
Dividend and dates
Earnings Date
November 4, 2026
Avg Volume
942.32K

Only metrics the company reports are shown. Data provided by Yahoo Finance via yfinance. Updated daily.

Key facts

As of October 21, 2026, ERII closed at $6.65, −61.25% over 1 year.

Energy Recovery, Inc. (ERII) has a market capitalization of $339.45M.

In fiscal 2025, ERII reported revenue of $134.99M.

ERII Stock Return by Calendar Year

Energy Recovery, Inc. (ERII) 10-year return: what $10,000 became

1 year
$10,000 $3,875
−61.25%
5 years
$10,000 $3,528
−64.72%
10 years
$10,000 $4,730
−52.70%

If you had invested $10,000 in Energy Recovery, Inc. (ERII) 10 years ago, at the close on October 21, 2016, it would have been worth $4,730 at the close on October 21, 2026: −52.70% in total, −7.21% a year. A historical calculation from closing prices adjusted for splits and dividends, before fees and taxes.

Calendar-year returns computed from daily closing prices. Partial years are shown muted and marked with an asterisk.

YearReturn
2026 (partial year)−50.70%
2025−8.23%
2024−21.97%
2023−8.05%
2022−4.65%
2021+57.55%
2020+39.33%
2019+45.47%
2018−23.09%
2017−15.46%
2016 (partial year)−19.20%

As of October 21, 2026.

ERII Revenue and Earnings by Fiscal Year

FY ends December
Fiscal yearRevenueNet incomeNet margin
2025$134.99M$22.96M17.0%
2024$144.95M$23.05M15.9%
2023$128.35M$21.50M16.8%
2022$125.59M$24.05M19.1%
Fiscal yearRevenueGross profitOperating incomeNet incomeNet margin
2025$134.99M$87.93M$24.20M$22.96M17.0%
2024$144.95M$96.93M$22.20M$23.05M15.9%
2023$128.35M$87.08M$19.05M$21.50M16.8%
2022$125.59M$87.36M$24.83M$24.05M19.1%

Annual figures as reported, in the company's reporting currency. As of December 31, 2025.

ERII Valuation vs Pollution & Treatment Controls Median

Median of 16 stocks
MetricERIIPollution & Treatment Controls medianvs median
P/E25.5827.818% below
P/S ratio2.823.9729% below
Profit margin12.72%−12.75%25.5 pts above

Medians across 16 Pollution & Treatment Controls stocks that report the metric. Medians, not averages, so one outlier cannot move them. As of October 21, 2026.

Recent News

All 13 articles ↓

News provided by third-party sources. Not financial advice.

Analysis

Data-derived

Company Overview

Energy Recovery, Inc. (ERII) is capitalised at $339.45M on the latest close. The company sits in the Industrials sector, in the Pollution & Treatment Controls industry. Headcount on file is 230.

ERII last closed at $6.65 on October 21, 2026. That is +$0.01 (+0.15%) against the previous close. The 52-week range on file runs from $6.58 to $18.32. The latest close sits 1.06% above that 52-week low.

Financial Health

Fiscal 2025 revenue came to $134.99M. Against the prior fiscal year total of $144.95M, that is a change of −6.87%. The same year closed with net income of $22.96M. That is −0.38% against the prior fiscal year. Profit margin runs at 12.72%. That is 25.5 percentage points above the Pollution & Treatment Controls median of −12.75%. Earnings per share on a trailing basis come to 0.26.

Across the 4 fiscal years on file, revenue moves from $125.59M in 2022 to $134.99M in 2025. Of those 4 years, 4 report positive net income.

Valuation Assessment

ERII trades at a trailing price-to-earnings ratio of 25.58. That is 8.04% below the Pollution & Treatment Controls median of 27.81. On forward earnings the ratio is 19.85. The PEG ratio, which sets the P/E against expected earnings growth, reads 3.33. Measured against sales, the shares trade at 2.82 times revenue. On price-to-sales that is 29.02% below the Pollution & Treatment Controls median of 3.97. 16 Pollution & Treatment Controls companies report these metrics, and the medians quoted come from that group.

Over the trailing twelve months the total return is −61.25%. Across 10 years the annualized return works out at −7.21%. Beta against the wider market is reported at 0.91. Daily returns over the trailing 10 years annualize to a volatility of 49.29%.

Growth & Income

The record shows no dividend for ERII.

Across the complete calendar years on file, 2021 returned +57.55% and 2018 returned −23.09%. Of the 9 complete calendar years on file, 3 finished higher. 2026 is still running; the total return is −50.70% year to date.

Peer Comparison

Energy Recovery, Inc. (ERII) operates in the Pollution & Treatment Controls industry. Here is how it compares to its closest peers by market capitalization:

Company Ticker Market Cap P/E Ratio
Energy Recovery, Inc. ERII $339.45M 25.6
Veralto Corporation VLTO $24.70B 25.5
Zurn Elkay Water Solutions Corporation ZWS $8.02B 30.1
CECO Environmental Corp. CECO $3.94B —

The Pollution & Treatment Controls industry average P/E ratio is 27.8x. Energy Recovery, Inc. trades at a P/E of 25.6.

Every figure above is read from this page's own data on each daily rebuild. Informational only, not financial advice. As of October 21, 2026.

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About Energy Recovery, Inc.

Energy Recovery, Inc., together with its subsidiaries, designs, manufactures, and sells energy efficiency technology solutions in the United States, North, South and Latin America, the Middle East, Northern Africa, Asia, and Europe. It operates through Water and Emerging Technologies segments. The company offers high and low pressure, and ultra high-pressure exchangers; AT and LPT hydraulic turbochargers; and high-pressure feed and circulation pumps for use in water treatment industries, including seawater and brackish desalination, and wastewater treatment. It also provides PX G1300, which reduces energy consumption and operating costs of carbon dioxide-based refrigeration systems; and spare parts, as well as repair, field, and commissioning services. The company sells its products under the ERI, PX, PX Pressure Exchanger, Pressure Exchanger, Ultra High-Pressure PX, PX G1300, PX PowerTrain, PX G, AT, and Aquabold brands to supermarket chains, cold storage facilities, refrigeration system installers or OEMs, and other industrial users; and aftermarket customers consisting of desalination plant owners and operators. Energy Recovery, Inc. was incorporated in 1992 and is headquartered in San Leandro, California.

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