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Energy Recovery (ERII) Stock Price, News & Analysis

ERII NASDAQ
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Price Move History

Daily moves over 5%
16 252 sessions, November 6, 2025 to November 6, 2026
Largest daily move
-35.3% close of February 26, 2026
1-year change
-50.7% closing prices, November 6, 2025 to November 6, 2026
1-month change
+1% closing prices, October 6, 2026 to November 6, 2026

Company Description

Energy Recovery, Inc. (Nasdaq: ERII) is an engineering-driven technology company focused on energy efficiency and sustainability. According to the company’s public disclosures, Energy Recovery designs and manufactures energy-saving technology for critical infrastructure that communities rely on every day. The company highlights more than 30 years of leadership in the desalination industry and uses a proprietary pressure exchanger technology platform to improve operations and lower emissions for customers across multiple industries.

Energy Recovery states that it is headquartered in the San Francisco Bay Area and operates manufacturing and research and development facilities in California, with some disclosures also noting facilities in Texas. The company reports that it provides sales and on-site technical support globally, positioning its technology in markets where energy efficiency and operational reliability are central concerns.

Business focus and technology platform

In its descriptions, Energy Recovery characterizes itself as a trusted global leader in energy efficiency technology. The company’s platform is built on its pressure exchanger technology, which it describes as the basis for reliable, high-performance solutions that generate cost savings, increase energy efficiency, and reduce carbon emissions in several industries. The firm emphasizes a strong foundation in desalination, where it has delivered solutions for more than three decades.

Energy Recovery’s earlier profile information notes that the company is engaged in engineering, designing, manufacturing, and supplying solutions that make industrial processes more efficient and sustainable. It has described its operations in terms of three segments: Water, Emerging Technologies, and Corporate. Within this framework, the company has indicated that it offers energy recovery devices and pumps, as well as related products and services, to the reverse osmosis desalination market, with a majority of revenue historically derived from the Water segment.

Water segment and desalination heritage

The Water segment is central to Energy Recovery’s identity as presented in its public materials. The company’s long-standing role in desalination is repeatedly cited, with references to more than 30 years of experience in this area. Through this segment, Energy Recovery reports that it delivers solutions that optimize operations and support environmental sustainability for customers worldwide. Historical disclosures also associate this segment with energy recovery devices and pumps used in reverse osmosis desalination processes.

Supplemental financial information released by the company breaks out revenue channels such as megaprojects, original equipment manufacturer (OEM) sales, and aftermarket activity. These channel disclosures appear within the context of the Water-focused business and illustrate how the company categorizes revenue sources within its overall water-related operations.

Emerging Technologies and corporate activities

Energy Recovery identifies an Emerging Technologies segment in its financial reporting. Segment tables in the company’s filings and press releases distinguish between Water, Emerging Technologies, and Corporate activities, with separate reporting of revenue, cost of revenue, operating expenses, and operating income or loss. While detailed product descriptions for Emerging Technologies are not provided in the supplied materials, the segment structure indicates that the company is investing in applications of its technology platform beyond its core desalination heritage.

The Corporate segment captures shared functions such as general and administrative activities, sales and marketing, and research and development that are not allocated solely to Water or Emerging Technologies. Segment disclosures in the company’s financial tables show how these costs and activities are distributed across the organization.

Geographic footprint and facilities

Energy Recovery states that it is headquartered in the San Francisco Bay Area. Across several news releases, the company explains that it has manufacturing and research and development facilities in California, and in one release it notes facilities across California and Texas. The company also reports that it maintains sales and on-site technical support capabilities available globally, indicating that its customer base and operational focus extend beyond the United States, even though specific countries are not listed in the provided materials.

Financial reporting and performance measures

Energy Recovery regularly publishes quarterly and annual financial results, including revenue, gross margin, operating margin, net income or loss, and cash flow information. The company’s press releases and related 8-K filings provide detailed tables of revenue by channel (megaproject, OEM, aftermarket) and by segment (Water, Emerging Technologies, Corporate). These disclosures show how management evaluates performance across different parts of the business.

In addition to GAAP metrics, Energy Recovery makes extensive use of non-GAAP financial measures. The company defines and reports adjusted operating margin, adjusted net income or loss, adjusted net income or loss per share, adjusted EBITDA, and free cash flow. It explains that these measures exclude items such as stock-based compensation, executive transition costs, restructuring charges, impairment of long-lived assets, and certain tax effects, as well as depreciation and amortization and other income or expense in the case of adjusted EBITDA. The company states that it uses these non-GAAP measures to analyze operating performance, develop internal budgets and financial goals, and facilitate period-to-period comparisons.

Capital allocation and share repurchase programs

Energy Recovery’s disclosures describe an active capital allocation approach that includes share repurchase programs. Press releases and an 8-K filing detail Board authorizations for repurchasing outstanding common stock over specified periods. The company notes that purchases may be made through open market trades, block trades, or privately negotiated transactions, subject to business, economic, market, regulatory, and pricing considerations. It also states that these programs do not obligate the company to acquire a specific number of shares and may be expanded, extended, modified, or discontinued without prior notice. The company has indicated that repurchases are expected to be funded with cash on hand.

Management, governance, and strategic focus

Energy Recovery’s public communications highlight a focus on technical, operational, and cultural excellence. In one announcement, the company describes leadership changes, including the appointment of a new Chief Technology Officer and a Vice President, Wastewater, with the stated goal of advancing strategy and accelerating revenue growth in specific application areas such as municipal and industrial wastewater treatment. The company also references a manufacturing transformation and cost management initiatives in the context of margin improvement.

Through these disclosures, Energy Recovery presents a strategic emphasis on profitable, sustained growth across multiple markets, supported by its pressure exchanger technology platform, ongoing research and development, and targeted leadership appointments. The company also notes recognition such as an award for innovation in desalination technology, which it attributes in part to internal product management and technical support capabilities.

Stock information and regulatory filings

Energy Recovery’s common stock trades on the Nasdaq exchange under the ticker symbol ERII. The company files periodic and current reports with the U.S. Securities and Exchange Commission (SEC), including Forms 10-K, 10-Q, and 8-K. For example, the provided 8-K filings report the release of quarterly earnings and the authorization of share repurchase programs. These filings, along with the company’s financial press releases, form the primary regulatory record of its financial condition, results of operations, and certain corporate actions.

Sector classification

The input data classifies Energy Recovery within the Manufacturing sector and the Iron and Steel Forging industry. At the same time, the company’s own descriptions characterize it as an energy efficiency and technology-focused manufacturer that designs and produces energy-saving equipment and related solutions for industrial and infrastructure applications, with a core presence in desalination and broader ambitions across multiple industries.

Stock Performance

$7.09
-0.84%
-0.06
After hoursChange vs the $7.15 closeLast updated: November 6, 2026 at 18:23
-50.7%
Performance 1 year
$359.9M

Energy Recovery (ERII) closed at $7.15 on November 6, 2026. Over the past 12 months, the price has lost 50.7%.

See what a $1,000 investment in ERII would be worth today

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ERII Metrics & Rankings

Price returns through November 6, 2026. Month and year figures include the first trading day. Ranking links may use different dates.

Financial Highlights

Energy Recovery generated $135.0M in revenue in FY2025, retaining a 65.1% gross margin, operating income reached $23.9M (17.7% operating margin), and net income was $23.0M, reflecting a 17.0% net profit margin. Diluted earnings per share stood at $0.42. The company generated $18.8M in operating cash flow. The current ratio was 10.44, measuring current assets divided by current liabilities.

$135.0M
Revenue (FY2025)
$23.0M
Net Income (FY2025)
$18.8M
Operating Cash Flow

Upcoming Events

YEAR
2027
2027 Operations

Dammam facility operational

3,750-m2 manufacturing facility near Dammam industrial area, Saudi Arabia; operated by Energy Recovery Co; operational in 2027.

Energy Recovery has 1 upcoming scheduled event. The next event, "Dammam facility operational", is expected in 2027. Investors can track these dates to stay informed about potential catalysts that may affect the ERII stock price.

Short Interest History

Last 12 Months

Short interest in Energy Recovery (ERII) currently stands at 3.2 million shares, down 3.6% from the previous reporting period, representing 6.4% of the float. Since November 2025, short interest has increased by 156.6%.

Days to Cover History

Last 12 Months

Days to cover for Energy Recovery (ERII) currently stands at 4.3 days, up 15.7% from the previous period. The ratio is the reported short interest divided by the average daily trading volume. Since November 2025, the figure has increased by 195.2%. Across the settlements charted above, it has ranged from 1.0 to 5.4 days.

ERII Company Profile & Sector Positioning

Energy Recovery (ERII) operates in the Pollution & Treatment Controls industry within the broader Industrials sector and is listed on the NASDAQ.

Investors comparing ERII often look at related companies in the same sector, including Aduro Clean Technologies Inc. (ADUR), CADIZ, Inc. (CDZI), PureCycle Technologies, Inc. (PCT), Arq, Inc. (ARQ), and CECO Environmental Corp (CECO). Comparing financial metrics, valuation ratios, and stock performance across these peers can help investors evaluate ERII's relative position within its industry.

Frequently Asked Questions

The current stock price of Energy Recovery (ERII) is $7.09 in after-hours trading as of November 6, 2026.

The market cap of Energy Recovery (ERII) is approximately $359.9M. Learn more about what market capitalization means .

The FY2025 revenue of Energy Recovery (ERII) is $135.0M, from its most recent completed fiscal year.

The FY2025 net income of Energy Recovery (ERII) is $23.0M, from its most recent completed fiscal year.

The diluted earnings per share (EPS) of Energy Recovery (ERII) is $0.42 for FY2025, its most recent completed fiscal year. Learn more about EPS .

The operating cash flow of Energy Recovery (ERII) is $18.8M for FY2025, its most recent completed fiscal year. Learn about cash flow.

The net profit margin of Energy Recovery (ERII) is 17.0% for FY2025, its most recent completed fiscal year. Learn about profit margins.

The operating profit margin of Energy Recovery (ERII) is 17.7% for FY2025, its most recent completed fiscal year. Learn about operating margins.

The gross profit margin of Energy Recovery (ERII) is 65.1% for FY2025, its most recent completed fiscal year. Learn about gross margins.

The current ratio of Energy Recovery (ERII), current assets divided by current liabilities, was 10.44 at the end of FY2025, its most recent completed fiscal year. Learn about liquidity ratios.

The gross profit of Energy Recovery (ERII) is $87.9M for FY2025, its most recent completed fiscal year.

The operating income of Energy Recovery (ERII) is $23.9M for FY2025, its most recent completed fiscal year. Learn about operating income.

Energy Recovery, Inc. designs and manufactures energy-saving technology for critical infrastructure. The company states that it builds reliable, high-performance solutions on a proprietary pressure exchanger technology platform, with a strong foundation in the desalination industry and applications across multiple industries.

Energy Recovery describes its core technology as a pressure exchanger platform. According to the company, this platform underpins solutions that generate cost savings, increase energy efficiency, and reduce carbon emissions for customers in several industries.

Energy Recovery has described its operations in three segments: Water, Emerging Technologies, and Corporate. Financial tables in the company’s disclosures show revenue, cost of revenue, operating expenses, and operating income or loss for each of these segments.

The Water segment is closely tied to Energy Recovery’s long-standing presence in the desalination industry. The company notes more than 30 years of leadership in desalination and has historically associated this segment with energy recovery devices and pumps, as well as related products and services, for reverse osmosis desalination.

Energy Recovery states that it is headquartered in the San Francisco Bay Area. The company also reports that it operates manufacturing and research and development facilities in California, and in some disclosures notes facilities in both California and Texas.

Energy Recovery’s common stock trades on the Nasdaq exchange under the ticker symbol ERII, as indicated in the company’s press releases and SEC filings.

Energy Recovery reports several non-GAAP financial measures, including adjusted operating margin, adjusted net income or loss, adjusted net income or loss per share, adjusted EBITDA, and free cash flow. The company explains that these measures exclude items such as stock-based compensation, executive transition costs, restructuring charges, impairment of long-lived assets, certain tax effects, and, for adjusted EBITDA, depreciation and amortization and other income or expense.

The company states that it uses non-GAAP financial measures to analyze its operating performance and future prospects, develop internal budgets and financial goals, and facilitate period-to-period comparisons. It also notes that these measures should be considered as a supplement to, and not a substitute for, GAAP financial measures.

Energy Recovery reports that it has sales and on-site technical support available globally. While specific countries are not listed in the provided materials, the company’s descriptions emphasize worldwide customer reach and support for its energy efficiency technology.

Yes. Energy Recovery has announced Board-authorized share repurchase programs to buy back outstanding common stock. The company indicates that repurchases may be made through open market, block, or privately negotiated transactions, that they are funded with cash on hand, and that the programs may be expanded, extended, modified, or discontinued without prior notice.