Range Low Price High Price Comment
30 days $7.83 $9.91 Monday, 22nd Jun 2026 ERII stock ended at $8.90. This is 5.52% less than the trading day before Thursday, 18th Jun 2026. During the day the stock fluctuated 6.44% from a day low at $8.85 to a day high of $9.42.
90 days $7.83 $11.72
52 weeks $7.83 $18.32

Historical Energy Recovery prices

Date Open High Low Close Volume
Jun 22, 2026 $9.42 $9.42 $8.85 $8.90 1 273 525
Jun 18, 2026 $9.54 $9.91 $9.16 $9.42 2 848 305
Jun 17, 2026 $8.60 $9.67 $8.57 $8.99 2 254 364
Jun 16, 2026 $8.76 $9.07 $8.54 $8.58 1 432 340
Jun 15, 2026 $8.43 $9.06 $8.43 $8.76 2 044 234
Jun 12, 2026 $8.19 $8.41 $8.15 $8.33 720 085
Jun 11, 2026 $7.97 $8.24 $7.83 $8.19 820 176
Jun 10, 2026 $8.12 $8.12 $7.89 $7.92 482 822
Jun 09, 2026 $8.07 $8.30 $7.96 $8.12 663 259
Jun 08, 2026 $8.03 $8.15 $7.83 $7.97 660 910
Jun 05, 2026 $8.29 $8.30 $8.00 $8.01 584 045
Jun 04, 2026 $8.15 $8.39 $8.06 $8.29 753 656
Jun 03, 2026 $8.13 $8.35 $8.00 $8.04 1 026 985
Jun 02, 2026 $8.06 $8.30 $8.06 $8.18 710 826
Jun 01, 2026 $8.09 $8.20 $7.94 $8.00 968 773
May 29, 2026 $8.43 $8.46 $8.09 $8.17 891 810
May 28, 2026 $8.59 $8.71 $8.50 $8.63 530 828
May 27, 2026 $8.81 $8.81 $8.57 $8.68 465 008
May 26, 2026 $8.95 $9.00 $8.71 $8.77 701 003
May 22, 2026 $8.67 $8.86 $8.61 $8.85 825 634
May 21, 2026 $8.55 $8.72 $8.37 $8.62 646 703
May 20, 2026 $8.44 $8.73 $8.39 $8.65 898 287
May 19, 2026 $9.08 $9.08 $8.44 $8.46 908 715
May 18, 2026 $8.63 $9.26 $8.61 $9.06 1 321 682
May 15, 2026 $8.45 $8.64 $8.20 $8.41 1 239 708

FAQ

What are historical stock prices?
Historical stock prices refer to a stock’s recorded prices at various past points. These prices include several key figures that help investors and analysts evaluate a stock’s performance over time:
Open: Open price for the trading day.
High: Highest price for the trading day.
Low: Lowest price for the trading day.
Close: Close price for the trading day.

Additionally, historical prices often include:
Volume is the number of shares traded during the day. It indicates how actively a stock was traded and can provide insights into market sentiment and liquidity.

How can I use ERII stock historical prices to predict future price movements?
Trend Analysis: Examine the ERII stock’s historical trends to identify patterns that might continue.
Moving Averages: Use moving averages to detect potential reversal points.
Momentum Indicators: Apply indicators like RSI or MACD to assess the momentum and strength of price movements.
Volume Analysis: Analyze trading volume alongside price changes to gauge trend strength.
Statistical Methods: Use statistical tools such as regression analysis to model and forecast future prices based on past data.
These techniques can provide insights but should be used with risk management practices to mitigate potential losses.

What impact do stock splits have on historical price data?
When a company performs a stock split, it adjusts the historical price data to reflect the new, lower trading price as if it had always been that way.

This ensures consistency for anyone analyzing the stock’s past prices. The adjustment helps prevent misleading signals on charts, such as false sell signals or bearish trends that aren’t there. For instance, in a 2-for-1 stock split, the price per share is cut in half, which would otherwise appear as a dramatic drop on the chart. If someone didn’t know about the split, they might wrongly think something negative happened to the company. Most technical indicators would also react to this apparent drop by signaling to sell.

A stock split, while making the shares seem more affordable and potentially more attractive to investors, doesn’t alter the company’s fundamental value.

Why do the ERII stock historical prices show a range for periods like 30 days, 90 days, and 52 weeks?
The range provides the lowest and highest prices at which the stock has traded during the specified period. This helps investors understand the stock’s volatility and price variability within that timeframe.

How can I use historical price volatility to assess risk?
High price volatility historically indicates higher risk and potentially higher returns. Investors can gauge the stock’s risk level by examining the range between high and low prices over various periods.
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ABOUT ENERGY RECOVERY
Energy Recovery
Energy Recovery, Inc., together with its subsidiaries, designs, manufactures, and sells various solutions for the seawater reverse osmosis desalination and industrial wastewater treatment industries worldwide. The company operates through Water and Emerging Technologies segments. It offers a suite of products, including energy recovery devices, and high-pressure feed and recirculation pumps; hydraulic turbochargers and boosters; and spare parts, ...
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