Is ERII or SERV more profitable?

ERII runs the higher net margin — ERII at 12.75% versus SERV at -2315.96%.

Energy Recovery, Inc. (ERII) vs Serve Robotics Inc. (SERV)

A side-by-side comparison of Energy Recovery, Inc. and Serve Robotics 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.

$365M

$7.08IndustrialsDelayed quote: Oct 6, 2026, 4:00 PM EDT

SERV

Serve Robotics Inc.

$369M

$4.77IndustrialsDelayed quote: Oct 6, 2026, 4:00 PM EDT

Total return — ERII vs SERV

growth of $100 · dividends reinvested · last 3y

ERII -55.8% (-23.8%/yr)SERV -8.3% (-2.8%/yr)SERV compounded faster over this window

ERII SERV

ERII vs SERV: by the numbers

•SERV is the larger company ($369M vs $365M market cap).
•ERII is profitable (12.75% net margin) while SERV runs a net loss (-2315.96%).

Metrics side by side

Valuation

Metric	ERII	SERV
P/E ratio	25.06	N/A
P/S ratio	3.03	47.37
P/B ratio	2.12	1.05
EV / EBITDA	10.09	N/A
FCF yield	10.58%	N/A

Profitability

Metric	ERII	SERV
Gross margin	65.39%	-580.23%
Operating margin	16.40%	-4253.83%
Net margin	12.75%	-2315.96%
ROE	8.89%	-51.29%
ROIC	9.61%	-53.70%

Growth (annualized)

Metric	ERII	SERV
Revenue CAGR (5Y)	3.08%	N/A
EPS CAGR (5Y)	-1.76%	N/A
FCF CAGR (5Y)	10.08%	N/A
Total return CAGR (5Y)	-18.87%	N/A

Frequently asked

Is ERII or SERV more profitable?: ERII runs the higher net margin — ERII at 12.75% versus SERV at -2315.96%.

Go deeper

Full ERII analysis Full SERV analysis Interactive comparison tool

Dig into the metrics

Energy Recovery P/E ratio Energy Recovery ROE Serve Robotics ROE Energy Recovery operating margin Serve Robotics operating margin Energy Recovery revenue growth Serve Robotics revenue growth Energy Recovery free cash flow Serve Robotics free cash flow

Energy Recovery & Serve Robotics appear in these rankings

Highest FCF Yield Stocks

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.