Energy Recovery [ERII] vs Zurn Elkay Water [ZWS] Detailed Stock Comparison
TLDR: Quick Comparison Summary
Based on 21 vital metrics comparison: Energy Recovery Inc. wins in 11 metrics, Zurn Elkay Water Solutions Corporation wins in 9 metrics, with 0 ties. Energy Recovery Inc. appears stronger overall.
View Metrics Details
Vital Metrics Comparison
| Metric | Energy Recovery Inc. | Zurn Elkay Water Solutions Corporation | Better |
|---|---|---|---|
| P/E Ratio (TTM) | 24.69 | 42.63 | Energy Recovery Inc. |
| Price-to-Book Ratio | 2.66 | 4.97 | Energy Recovery Inc. |
| Debt-to-Equity Ratio | 4.57 | 34.50 | Energy Recovery Inc. |
| PEG Ratio | 1.01 | 2.24 | Energy Recovery Inc. |
| EV/EBITDA | 17.02 | 21.89 | Energy Recovery Inc. |
| Profit Margin (TTM) | 17.01% | 11.68% | Energy Recovery Inc. |
| Operating Margin (TTM) | 46.49% | 15.94% | Energy Recovery Inc. |
| EBITDA Margin (TTM) | 46.49% | 15.94% | Energy Recovery Inc. |
| Return on Equity | 11.03% | 12.06% | Zurn Elkay Water Solutions Corporation |
| Return on Assets (TTM) | 6.47% | 6.72% | Zurn Elkay Water Solutions Corporation |
| Free Cash Flow (TTM) | $17.44M | $316.60M | Zurn Elkay Water Solutions Corporation |
| Dividend Yield | N/A | 1.14% | N/A |
| 1-Year Return | -32.61% | 37.43% | Zurn Elkay Water Solutions Corporation |
| Price-to-Sales Ratio (TTM) | 4.06 | 4.72 | Energy Recovery Inc. |
| Enterprise Value | $482.01M | $8.22B | Zurn Elkay Water Solutions Corporation |
| EV/Revenue Ratio | 3.57 | 4.84 | Energy Recovery Inc. |
| Gross Profit Margin (TTM) | 67.24% | 44.40% | Energy Recovery Inc. |
| Revenue per Share (TTM) | $3 | $10 | Zurn Elkay Water Solutions Corporation |
| Earnings per Share (Diluted) | $0.42 | $1.12 | Zurn Elkay Water Solutions Corporation |
| Beta (Stock Volatility) | 1.08 | 0.81 | Zurn Elkay Water Solutions Corporation |
| Short % of Float | 4.10% | 4.08% | Zurn Elkay Water Solutions Corporation |
Energy Recovery Inc. vs Zurn Elkay Water Solutions Corporation Stock Performance Analysis
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Performance Comparison
Short-term Returns
| Stock | 1D | 1W | 1M | 3M | 6M | YTD |
|---|---|---|---|---|---|---|
| Energy Recovery Inc. | 5.16% | 9.91% | 4.16% | -14.62% | -39.67% | -36.15% |
| Zurn Elkay Water Solutions Corporation | -2.30% | 2.15% | -2.77% | 5.52% | 2.65% | 3.29% |
Long-term Returns
| Stock | 1Y | 3Y | 5Y | 10Y | 15Y | 20Y |
|---|---|---|---|---|---|---|
| Energy Recovery Inc. | -32.61% | -69.59% | -58.41% | -4.47% | 188.24% | -15.26% |
| Zurn Elkay Water Solutions Corporation | 37.43% | 88.80% | 1.47% | 125.59% | 129.34% | 129.34% |
Performance & Financial Health Analysis: Energy Recovery Inc. vs Zurn Elkay Water Solutions Corporation
| Metric | ERII | ZWS |
|---|---|---|
| Market Information | ||
| Market Cap | $581.64M | $8.00B |
| Market Cap Category | Small cap | Mid cap |
| 10 Day Avg. Volume | 824,155 | 753,500 |
| 90 Day Avg. Volume | 835,868 | 906,410 |
| Last Close | $8.76 | $35.21 |
| 52 Week Range | $7.83 - $18.32 | $27.74 - $41.15 |
| % from 52W High | -52.18% | -14.43% |
| All-Time High | $30.76 (Jul 17, 2023) | $65.68 (Sep 27, 2021) |
| % from All-Time High | -71.52% | -46.39% |
| Growth Metrics | ||
| Quarterly Revenue Growth | 0.00% | 0.10% |
| Quarterly Earnings Growth | 0.15% | 0.16% |
| Financial Health | ||
| Profit Margin (TTM) | 0.17% | 0.12% |
| Operating Margin (TTM) | 0.46% | 0.16% |
| Return on Equity (TTM) | 0.11% | 0.12% |
| Debt to Equity (MRQ) | 4.57 | 34.50 |
| Cash & Liquidity | ||
| Book Value per Share (MRQ) | $3.91 | $9.60 |
| Cash per Share (MRQ) | $1.42 | $1.80 |
| Operating Cash Flow (TTM) | $18.77M | $346.50M |
| Levered Free Cash Flow (TTM) | $8.59M | $283.05M |
| Dividends | ||
| Last 12-Month Dividend Yield | N/A | 1.14% |
| Last 12-Month Dividend | N/A | $0.40 |
Valuation & Enterprise Metrics Analysis: Energy Recovery Inc. vs Zurn Elkay Water Solutions Corporation
| Metric | ERII (Apr 24, 2026) | ZWS (Apr 13, 2026) |
|---|---|---|
| Price Ratios | ||
| P/E Ratio (TTM) | 24.69 | 42.63 |
| Forward P/E | 11.19 | 26.20 |
| PEG Ratio | 1.01 | 2.24 |
| Price to Sales (TTM) | 4.06 | 4.72 |
| Price to Book (MRQ) | 2.66 | 4.97 |
| Market Capitalization | ||
| Market Capitalization | $581.64M | $8.00B |
| Enterprise Value | $482.01M | $8.22B |
| Enterprise Value Metrics | ||
| Enterprise to Revenue | 3.57 | 4.84 |
| Enterprise to EBITDA | 17.02 | 21.89 |
| Risk & Other Metrics | ||
| Beta | 1.08 | 0.81 |
| Book Value per Share (MRQ) | $3.91 | $9.60 |
Financial Statements Comparison: Energy Recovery Inc. vs Zurn Elkay Water Solutions Corporation
Financial Metrics
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Revenue
Operating Margin
Profit Margin
Long Term Debt
Income Flow Analysis
Financial Statements Comparison
Income Statement
| Metric | ERII (2025) | ZWS (2025) |
|---|---|---|
| Revenue/Sales | 134.99M | 1.70B |
| Cost of Goods Sold | 47.06M | 931.10M |
| COGS % of Revenue | 34.9% | 54.9% |
| Gross Profit | 87.93M | 764.80M |
| Gross Margin | 65.1% | 45.1% |
| Research & Development | 13.03M | N/A |
| Operating Income (EBIT) | 24.20M | 288.50M |
| Operating Margin | 17.9% | 17.0% |
| EBITDA | 28.28M | 383.20M |
| EBITDA Margin | 20.9% | 22.6% |
| Pre-Tax Income | 27.60M | 256.30M |
| Pre-Tax Income % of Revenue | 20.4% | 15.1% |
| Income Tax | 4.63M | 63.90M |
| Income Tax % of Revenue | 3.4% | 3.8% |
| Net Income (Profit) | 22.96M | 198.00M |
| Profit Margin | 17.0% | 11.7% |
Balance Sheet & Liquidity Metrics
| Metric | ERII (2025) | ZWS (2025) |
|---|---|---|
| Cash & Equivalents | 48.08M | 300.50M |
| Total Current Assets | 181.21M | 811.70M |
| Total Current Assets % of Revenue | 134.2% | 47.9% |
| Total Current Liabilities | 17.35M | 259.40M |
| Total Current Liabilities % of Revenue | 12.9% | 15.3% |
| Long-Term Debt | 6.90M | 537.60M |
| Long-Term Debt % of Revenue | 5.1% | 31.7% |
| Total Shareholders Equity | 206.19M | 1.60B |
| Retained Earnings | 128.67M | -1.13B |
| Retained Earnings % of Revenue | 95.3% | -66.7% |
| Property, Plant & Equipment | 7.70M | 0 |
Cash Flow Statement Comparison
| Metric | ERII (2025) | ZWS (2025) |
|---|---|---|
| Operating Cash Flow | 21.86M | 345.80M |
| Operating Cash Flow % of Revenue | 16.2% | 20.4% |
| Capital Expenditures | 10,000 | 0 |
| Free Cash Flow | 17.44M | 316.60M |
| FCF Margin | 12.9% | 18.7% |
| Debt Repayment | N/A | -800,000 |
| Common Stock Repurchase | -35.62M | -159.90M |
Short Interest & Institutional Ownership Analysis
| Metric | ERII | ZWS |
|---|---|---|
| Shares Short | 2.12M | 5.06M |
| Short Ratio | 2.22 | 5.24 |
| Short % of Float | 4.10% | 4.08% |
| Shares Outstanding | 52.81M | 166.98M |
| Float Shares | 50.96M | 148.06M |
| % Held by Insiders | 2.08% | 11.75% |
| % Held by Institutions | 95.76% | 92.01% |
| % Held by Public | 2.16% | -3.76% |
Dividend Analysis & Yield Comparison: Energy Recovery Inc. vs Zurn Elkay Water Solutions Corporation
| Metric | ERII | ZWS |
|---|---|---|
| Last 12-Month Dividend | N/A | $0.40 |
| Last 12-Month Dividend Yield | N/A | 1.14% |
| 3-Year Avg Annual Dividend | N/A | $0.35 |
| 3-Year Avg Dividend Yield | N/A | 0.25% |
| 3-Year Total Dividends | N/A | $1.04 |
| Ex-Dividend Date | N/A | Feb 20, 2026 |