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.

What symbol and exchange does Energy Recovery shares trade?

Energy Recovery trades on the NASDAQ stock market under the symbol ERII.

What is Energy Recovery stock price doing today?

As of November 4, 2026, ERII stock price was flat at $7.17 with 962,866 million shares trading.

What is Energy Recovery's Beta?

ERII has a beta of 0.98, meaning it tends to be less sensitive to market movements. ERII has a correlation of 0.04 to the broad based SPY ETF.

How much is Energy Recovery worth?

ERII has a market cap of $365.99 million. This is considered a Small Cap stock.

How much money does Energy Recovery make?

Last quarter Energy Recovery reported $12 million in Revenue and -$.03 earnings per share. This fell short of revenue expectation by $-6 million and exceeded earnings estimates by $.01.

What is the highest and lowest price Energy Recovery traded in the last 3 year period?

In the last 3 years, ERII traded as high as $20.27 and as low as $6.55.

What are the top ETFs holding Energy Recovery?

The top ETF exchange traded funds that ERII belongs to (by Net Assets): VTI, IWM, VXF, PHO, DFAT.

Is Energy Recovery (ERII) a good investment?

ERII has underperformed the market in the last year with a return of -57.3%, while the SPY ETF gained +13.3%. In the last 3 month period, ERII fell short of the market, returning -19.5%, while SPY returned +1.5%. However, in the most recent 2 weeks ERII has outperformed the stock market by returning +8.0%, while SPY returned -0.3%.

What are the support and resistance levels for Energy Recovery (ERII)?

ERII support price is $7.02 and resistance is $7.32 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that ERII shares will trade within this expected range on the day.