Energy Recovery, Inc. (ERII) vs NN, Inc. (NNBR)
A side-by-side comparison of Energy Recovery, Inc. and NN, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of October 6, 2026. Differences are shown without an overall score or investment verdict.
ERII
Energy Recovery, Inc.
$7.09IndustrialsDelayed quote: Oct 6, 2026, 2:45 PM EDT
NNBR
NN, Inc.
$4.03IndustrialsDelayed quote: Oct 6, 2026, 2:45 PM EDT
Total return — ERII vs NNBR
growth of $100 · dividends reinvested · last 10yERII -56.8% (-8.0%/yr)NNBR -76.4% (-13.4%/yr)ERII compounded faster over this window
ERII NNBR
ERII vs NNBR: by the numbers
- •ERII is the larger company ($365M vs $332M market cap).
- •ERII is profitable (12.75% net margin) while NNBR runs a net loss (-7.15%).
- •ERII grew revenue faster over the past five years (3.08% vs -1.14% CAGR).
Metrics side by side
Valuation
| Metric | ERII | NNBR |
|---|---|---|
| P/E ratio | 25.08 | N/A |
| Forward P/E | N/A | 32.64 |
| P/S ratio | 3.04 | 0.73 |
| P/B ratio | 2.12 | N/A |
| EV / EBITDA | 10.10 | 22.61 |
| FCF yield | 10.57% | 2.41% |
Profitability
| Metric | ERII | NNBR |
|---|---|---|
| Gross margin | 65.39% | 12.98% |
| Operating margin | 16.40% | -3.01% |
| Net margin | 12.75% | -7.15% |
| ROE | 8.89% | -153.66% |
| ROIC | 9.61% | -3.87% |
Growth (annualized)
| Metric | ERII | NNBR |
|---|---|---|
| Revenue CAGR (5Y) | 3.08% | -1.14% |
| EPS CAGR (5Y) | -1.76% | N/A |
| FCF CAGR (5Y) | 10.08% | N/A |
| Total return CAGR (5Y) | -18.87% | -4.40% |
Frequently asked
- Which has grown faster, ERII or NNBR?
- Over the past five years, ERII grew revenue faster — ERII at a 3.08% CAGR versus NNBR at -1.14%.
- Is ERII or NNBR more profitable?
- ERII runs the higher net margin — ERII at 12.75% versus NNBR at -7.15%.
- How have ERII and NNBR total returns compared?
- Over the past 10 years, ERII delivered -8.05% and NNBR delivered -13.73% annualized total return. Past performance doesn't predict future results.
Go deeper
Dig into the metrics
Energy Recovery P/E ratioEnergy Recovery ROENN ROEEnergy Recovery operating marginNN operating marginEnergy Recovery revenue growthNN revenue growthEnergy Recovery free cash flowNN free cash flow
Energy Recovery & NN appear in these rankings
Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified October 6, 2026.