Which has grown faster, AP or PSIX?

Over the past five years, PSIX grew revenue faster — AP at a 6.21% CAGR versus PSIX at 11.64%.

Is AP or PSIX more profitable?

PSIX runs the higher net margin — AP at -15.53% versus PSIX at 14.28%.

Which has been the better investment, AP or PSIX?

Over the past 10-year, PSIX delivered the higher annualized total return — AP at -2.09% versus PSIX at 7.98%. Past performance doesn't predict future results.

Ampco-Pittsburgh Corp. (AP) vs Power Solutions International, Inc. (PSIX)

PSIX leads on 11 of 12 compared metrics.

A side-by-side comparison of Ampco-Pittsburgh Corp. and Power Solutions International, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of June 27, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

Ampco-Pittsburgh Corp.

$190M

$9.35Industrials

PSIX

Power Solutions International, Inc.

$876M

$37.99Industrials

Total return — AP vs PSIX

growth of $100 · last 14y

AP -52.3%PSIX +105.5%PSIX compounded faster

AP PSIX

AP vs PSIX: by the numbers

•PSIX is the larger company ($876M vs $190M market cap).
•PSIX is profitable (14.28% net margin) while AP runs a net loss (-15.53%).
•PSIX grew revenue faster over the past five years (11.64% vs 6.21% CAGR).

Which is better, AP or PSIX?

Metric tally: AP 1 · PSIX 11

It depends on what you're optimizing for:

GrowthPSIX(faster 5Y revenue CAGR)

QualityPSIX(higher ROIC)

Metrics side by side

Valuation

Metric	AP	PSIX
P/E ratio	—	8.56
Forward P/E	—	15.96
P/S ratio	0.43●	1.22
P/B ratio	6.04	4.72●
PEG ratio	—	0.18
EV / EBITDA	14.55	9.72●
FCF yield	—	2.96%

Profitability

Metric	AP	PSIX
Gross margin	14.54%	24.16%●
Operating margin	0.17%	13.48%●
Net margin	-15.53%	14.28%●
ROE	-217.33%	55.01%●
ROIC	1.59%	30.51%●

Growth (annualized)

Metric	AP	PSIX
Revenue CAGR (5Y)	6.21%	11.64%●
EPS CAGR (5Y)	-17.91%	53.38%●
FCF CAGR (5Y)	-46.19%	8.05%●
Total return CAGR (5Y)	8.81%	46.63%●

Frequently asked

Which is better, AP or PSIX?: It depends on your goal. growth: PSIX (faster 5Y revenue CAGR); quality: PSIX (higher ROIC). Across all compared metrics, PSIX leads 11 to 1.
Which has grown faster, AP or PSIX?: Over the past five years, PSIX grew revenue faster — AP at a 6.21% CAGR versus PSIX at 11.64%.
Is AP or PSIX more profitable?: PSIX runs the higher net margin — AP at -15.53% versus PSIX at 14.28%.
Which has been the better investment, AP or PSIX?: Over the past 10-year, PSIX delivered the higher annualized total return — AP at -2.09% versus PSIX at 7.98%. Past performance doesn't predict future results.

Go deeper

Full AP analysis Full PSIX analysis Interactive comparison tool

Dig into the metrics

Ampco-Pittsburgh P/E ratio Power Solutions International P/E ratio Ampco-Pittsburgh dividend yield Power Solutions International dividend yield Ampco-Pittsburgh ROE Power Solutions International ROE Ampco-Pittsburgh operating margin Power Solutions International operating margin Ampco-Pittsburgh revenue growth Power Solutions International revenue growth Ampco-Pittsburgh free cash flow Power Solutions International free cash flow

Ampco-Pittsburgh & Power Solutions International appear in these rankings

Highest ROE Stocks Highest ROIC Stocks Lowest P/E Ratio 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 June 27, 2026.