Energy Recovery ERII
NASDAQ ERII
$6.77 +0.07 (+1.04%)
At close: Oct 2, 2026 · 4:00 PM EDT

Energy Recovery (ERII) Shares Outstanding (Diluted) (2010 - 2026)

Updated

Energy Recovery (ERII) reported Shares Outstanding (Diluted) of 51.46 million for Q2 2026, down 5.5% from 54.49 million a year earlier and down 2.3% from the prior quarter.

Analysis

Energy Recovery (ERII) Shares Outstanding (Diluted) (2010 - 2026) Analysis & Trends

For FY2025, Energy Recovery posted Shares Outstanding (Diluted) of 54.16 million, down 6.3% from FY2024.

  • Shares Outstanding (Diluted) has a five-year compound annual growth rate of -0.9% (FY2020 to FY2025).
  • By year, Shares Outstanding (Diluted) came in at 57.82 million in FY2024 (+0.1%), 57.74 million in FY2023 (+0.2%), 57.64 million in FY2022 (-1.8%) and 58.72 million in FY2021 (+3.7%).
  • The Q2 2026 figure ranks as the lowest quarterly Shares Outstanding (Diluted) since Q3 2014.
  • Year over year, Shares Outstanding (Diluted) has now declined in each of the last six quarters, with an average decline of 4.1% over the last eight quarters.
  • The high point for year-over-year Shares Outstanding (Diluted) in five years was Q3 2021 (growth of 4.0%); the low point was Q3 2025 (a decline of 8.3%).
  • Per Business Quant data, the three quarters before Q2 2026 came in at 52.66 million (Q1 2026), 54.16 million (Q4 2025) and 53.47 million (Q3 2025).
Peer Set

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Shares Outstanding (Dil.) (Qtr)
1 Ecolab 76.01 Bn 67.78 Bn 1.95 Bn 282.20 Mn
2 Xylem 23.56 Bn 19.05 Bn 963.00 Mn 236.60 Mn
3 Veralto 23.10 Bn 15.75 Bn 902.00 Mn 245.80 Mn
4 Badger Meter 3.72 Bn 2.99 Bn 90.77 Mn 29.14 Mn
5 Ceco Environmental 3.11 Bn 2.95 Bn 86.47 Mn 43.31 Mn
6 NWPX Infrastructure 1.01 Bn 971.46 Mn 34.36 Mn 9.79 Mn
7 Energy Recovery 342.87 Mn 18.03 Mn 8.96 Mn 51.46 Mn
8 Cadiz 311.40 Mn 279.84 Mn -24,000.00 34,188.00
9 AirJoule Technologies 290.46 Mn 170.08 Mn - 69.74 Mn
10 LanzaTech Global 72.38 Mn -42.75 Mn 1.91 Mn 11.66 Mn
Historic Data

Historic Data

Download Data
DateValue
Jun 30, 2026 51.46 Mn
Mar 31, 2026 52.66 Mn
Dec 31, 2025 54.16 Mn
Sep 30, 2025 53.47 Mn
Jun 30, 2025 54.49 Mn
Mar 31, 2025 54.90 Mn
Dec 31, 2024 57.82 Mn
Sep 30, 2024 58.29 Mn
Jun 30, 2024 57.37 Mn
Mar 31, 2024 57.10 Mn
Dec 31, 2023 57.74 Mn
Sep 30, 2023 57.97 Mn
Jun 30, 2023 56.36 Mn
Mar 31, 2023 56.23 Mn
Dec 31, 2022 57.64 Mn
Sep 30, 2022 57.37 Mn
Jun 30, 2022 56.22 Mn
Mar 31, 2022 58.18 Mn
Dec 31, 2021 58.72 Mn
Sep 30, 2021 58.71 Mn
API Access

Energy Recovery Shares Outstanding (Diluted) API

Pull this series into your own models, spreadsheets and apps with the Business Quant Historical Metrics API. The request below matches the chart above — change the frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.

https://data.businessquant.com/historic?slug=shares-outstanding-diluted&ticker=ERII&period=max&api_key=YOUR_API_KEY