Energy Recovery (ERII) vs NN (NNBR)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 9, 2026.
Summary
NN (NNBR) has outperformed Energy Recovery (ERII) over the past year, gaining 108.9% versus a loss of 55.7%. Over five years, NNBR leads with a -21.4% price change compared with -65.7% for ERII. NN is the larger company by market cap ($375.9 million vs $349.1 million), about 1.1 times the size.
On valuation, NN trades at a lower forward P/E (20.4x vs 20.4x for Energy Recovery).
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | ERII | NNBR |
|---|---|---|
| Share price | $6.84 | $4.01 |
| Market cap | $349.15M | $375.91M |
| 1-day change | +1.63% | -0.25% |
| YTD return | -49.30% | +213.28% |
| 1-year return | -55.70% | +108.85% |
| 5-year return | -65.70% | -21.37% |
| P/E ratio (TTM) | 26.31 | — |
| Forward P/E | 20.42 | 20.39 |
| EPS (TTM) | $0.26 | $-0.96 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| 52-week high | $18.32 | $4.79 |
| 52-week low | $6.60 | $1.10 |
| Distance from 52-week high | -62.66% | -16.28% |
| Analyst consensus | none | strong_buy |
| Avg. price target upside | +16.96% | +66.33% |
| Average volume | 943.83K | 2.41M |
| Shares outstanding | 51.04M | 93.74M |
| Employees | 230 | 2,300 |
| Sector | Technology | Industrials |
| Industry | Industrial Machinery/Components | Industrial Machinery/Components |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- NNBR has outperformed ERII by 164.6 percentage points over the past year.
- The two companies sit in different sectors: Energy Recovery in Technology and NN in Industrials.
About Energy Recovery
ERII stock →Energy Recovery, Inc., together with its subsidiaries, designs, manufactures, and sells energy efficiency technology solutions in the United States, North, South and Latin America, the Middle East, Northern Africa, Asia, and Europe. It operates through Water and Emerging Technologies segments.
Technology · Industrial Machinery/Components · 230 employees
About NN
NNBR stock →NN, Inc., together with its subsidiaries, designs, manufactures, and sells high-precision components and assemblies for various end markets in the United States, China, Brazil, Mexico, Germany, Poland, and internationally. The company operates through two segments, Mobile Solutions and Power Solutions.
Industrials · Industrial Machinery/Components · 2,300 employees
ERII vs NNBR FAQ
Which is bigger, Energy Recovery or NN?
NN (NNBR) is larger, with a market capitalization of $375.91M compared with $349.15M for Energy Recovery (ERII).
Which stock has performed better over the past year, ERII or NNBR?
NNBR returned +108.85% over the past 12 months, compared with -55.70% for ERII (price return, excluding dividends). Past performance does not predict future results.
Are Energy Recovery and NN in the same industry?
Yes. Both are classified in the Industrial Machinery/Components industry within the Technology sector.