6.81
price down icon0.29%   -0.02
after-market After Hours: 6.81
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Energy Recovery Inc Stock (ERII) Price History

The historical daily chart and data for Energy Recovery Inc stock (ERII), show that the latest closing stock price as of September 25, 2026, is $6.81.
  • Energy Recovery Inc all-time high stock price is $30.76, occurred on July 19, 2023.
  • The lowest Energy Recovery Inc stock price recorded was $2.07 on September 30, 2015. Since then, Energy Recovery Inc's stock price has risen over 228.99% to $6.81 now.
  • The 52-week high stock price for ERII is $18.32, representing a 169.02% increase from the current share price, occurred on October 27, 2025.
  • The 52-week low stock price for ERII is $6.69, indicating a -1.76% decrease from the current share price, occurred on September 24, 2026.
  • The closing price of Energy Recovery Inc (ERII) stock in the beginning of 2025 was $21.51. The stock closed the year at $20.49, a loss of over -4.74% for the year.
The table below shows more information about ERII historical price data:
Date High Low High - Low Volume % Change
Sep 25, 2026 $6.89 $6.77 $0.125 681,666.0 -0.29%
Sep 24, 2026 $6.84 $6.69 $0.15 800,471.0 +0.44%
Sep 23, 2026 $7.06 $6.78 $0.285 777,236.0 -4.49%
Sep 22, 2026 $7.13 $6.95 $0.185 754,071.0 +1.28%
Sep 21, 2026 $7.07 $6.91 $0.16 977,121.0 +0.57%
Sep 18, 2026 $7.06 $6.88 $0.175 1,947,768.0 -0.85%
Sep 17, 2026 $7.20 $6.96 $0.249 656,420.0 -0.70%
Sep 16, 2026 $7.33 $7.05 $0.275 912,706.0 +0.57%
Sep 15, 2026 $7.12 $6.89 $0.2244 1,293,156.0 -0.42%
Sep 14, 2026 $7.27 $6.93 $0.34 2,002,715.0 -6.09%
Sep 11, 2026 $7.59 $7.33 $0.265 928,823.0 +3.85%
Sep 10, 2026 $7.42 $7.25 $0.165 810,715.0 -1.49%
Sep 09, 2026 $7.68 $7.33 $0.35 922,706.0 -4.16%
Sep 08, 2026 $7.79 $7.49 $0.30 1,140,371.0 +0.92%
Sep 04, 2026 $7.75 $7.60 $0.15 642,883.0 -0.26%
Sep 03, 2026 $7.72 $7.53 $0.19 802,366.0 +0.92%
Sep 02, 2026 $7.76 $7.53 $0.23 945,652.0 -1.94%
Sep 01, 2026 $7.77 $7.60 $0.17 1,293,223.0 +0.26%
Aug 31, 2026 $7.80 $7.62 $0.175 3,246,218.0 -0.77%

Energy Recovery Inc Stock (ERII) Year by Year Price History

In this detailed analysis, we present a comprehensive overview of the price movements of Energy Recovery Inc stock over the years. By exploring the year-by-year data, investors can gain valuable insights into the historical performance and volatility of ERII shares. From significant milestones and fluctuations to notable trends, this in-depth examination of Energy Recovery Inc stock price history provides a foundation for understanding how the company's stock has evolved over time.

Energy Recovery Inc Stock (ERII) Price History 2026

Month High Low High - Low Volume % Change
Sep, 2026 $7.79 $6.69 $1.10 18,971,735.0 -11.67%
Aug, 2026 $9.34 $7.51 $1.83 22,038,879.0 -10.87%
Jul, 2026 $9.23 $7.86 $1.38 16,141,572.0 -4.10%
Jun, 2026 $9.91 $7.83 $2.08 23,905,100.0 +10.40%
May, 2026 $11.72 $8.09 $3.63 27,718,886.0 -26.20%
Apr, 2026 $11.53 $9.85 $1.68 18,162,172.0 +9.93%
Mar, 2026 $11.61 $9.35 $2.26 21,187,536.0 -3.45%
Feb, 2026 $16.30 $10.03 $6.27 10,826,346.0 -28.51%
Jan, 2026 $14.96 $13.44 $1.52 6,250,112.0 +8.15%

Energy Recovery Inc Stock (ERII) Price History 2025

Month High Low High - Low Volume % Change
Dec, 2025 $15.00 $13.47 $1.53 9,293,015.0 -6.71%
Nov, 2025 $17.36 $13.27 $4.09 13,566,156.0 -15.55%
Oct, 2025 $18.32 $15.18 $3.14 8,852,320.0 +10.96%
Sep, 2025 $15.47 $13.92 $1.55 10,001,077.0 +8.52%
Aug, 2025 $15.24 $12.65 $2.58 8,568,331.0 +5.65%
Jul, 2025 $14.04 $12.54 $1.50 8,182,532.0 +5.24%
Jun, 2025 $13.02 $11.88 $1.14 8,726,127.0 +1.35%
May, 2025 $15.96 $10.86 $5.10 13,172,698.0 -18.38%
Apr, 2025 $16.05 $13.77 $2.28 9,379,652.0 -2.77%
Mar, 2025 $16.86 $14.90 $1.96 9,191,034.0 +6.22%
Feb, 2025 $16.03 $13.94 $2.09 5,165,276.0 +4.32%
Jan, 2025 $15.45 $13.80 $1.65 5,187,909.0 -2.45%

Energy Recovery Inc Stock (ERII) Price History 2024

Month High Low High - Low Volume % Change
Dec, 2024 $17.44 $14.50 $2.94 7,553,527.0 -5.40%
Nov, 2024 $20.27 $14.47 $5.80 14,199,330.0 -12.88%
Oct, 2024 $19.11 $16.19 $2.92 7,514,756.0 +2.70%
Sep, 2024 $17.74 $14.43 $3.31 6,365,495.0 +7.08%
Aug, 2024 $18.36 $15.23 $3.13 10,204,929.0 +11.39%
Jul, 2024 $15.73 $12.46 $3.27 7,107,253.0 +9.71%
Jun, 2024 $14.74 $12.26 $2.48 7,098,590.0 -1.56%
May, 2024 $14.99 $12.45 $2.54 9,078,482.0 -9.40%
Apr, 2024 $15.95 $13.41 $2.54 7,261,025.0 -5.64%
Mar, 2024 $16.62 $14.06 $2.56 8,833,368.0 +1.02%
Feb, 2024 $16.25 $13.95 $2.30 10,187,433.0 +0.77%
Jan, 2024 $19.19 $15.51 $3.68 10,580,998.0 -17.68%
$12.63
price up icon 0.56%
ARQ ARQ
$2.02
price up icon 0.50%
$1.715
price up icon 0.00%
$3.01
price down icon 2.59%
$3.4505
price down icon 0.27%
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