Which is better, PAYX or PSIX?

On the Buffett-Fit framework, Paychex, Inc. (PAYX) currently grades higher than PSIX — 74/100 (B grade) vs 41/100 (D). That said, "better" depends on which framework you trust — PAYX wins on Warren Buffett, Benjamin Graham, Philip Fisher, Charlie Munger, and Terry Smith; PSIX wins on Peter Lynch and Joel Greenblatt. The full pillar breakdown is on this page.

Should I buy PAYX or PSIX?

This page is an educational comparison, not investment advice. Both PAYX and PSIX are graded against the same Buffett 5-pillar framework (moat, earnings durability, management quality, financial health, valuation) plus six other documented investor frameworks. Read the side-by-side breakdown to see which one matches the criteria you care about most — and always do your own research before making any investment decision.

Is PAYX better than PSIX for value investing?

On the Buffett-style value-investing framework, PAYX currently grades higher — 74/100 vs 41/100, a 33-point gap. The gap is driven by which pillars each stock passes; the table on this page shows moat, durability, management, financial health, and valuation side-by-side.

What's the difference between PAYX and PSIX on Warren Buffett's framework?

Both stocks are evaluated on the same five pillars: economic moat (durable competitive advantage), earnings durability (consistent profitability), management quality (capital allocation), financial health (conservative balance sheet), and valuation (margin of safety). PAYX currently scores 74/100 (B grade); PSIX scores 41/100 (D grade). The "Where each wins" section on this page breaks down which pillar each stock dominates.

Which has the stronger moat, PAYX or PSIX?

Moat strength is one of the five pillars in the Buffett-Fit score on this page. PAYX and PSIX are each scored on ROIC sustainability, gross-margin durability, and qualitative signals like brand strength, switching costs, network effects, and regulatory barriers. The pillar breakdown on this page shows the moat sub-score side-by-side so you can see which one has the more durable competitive advantage.

Which is more undervalued, PAYX or PSIX?

Valuation is one of the five Buffett-Fit pillars on this page. Both stocks are scored on owner-earnings yield, price-to-intrinsic-value vs the underlying compounding rate, and the margin of safety relative to a conservative DCF. The valuation sub-score in the table below tells you which one currently trades at a more attractive price relative to its underlying business quality.

Are PAYX and PSIX both Industrials stocks?

Yes — both Paychex, Inc. (PAYX) and Power Solutions International, Inc. (PSIX) operate in the Industrials sector. That makes this a direct sector-peer comparison, which is the apples-to-apples way to use the Buffett-Fit framework: the score weighs each stock against its sector's specific quality and valuation benchmarks (sector-relative bonus), so the cross-stock comparison isn't distorted by inter-sector base-rate differences.

Is this PAYX vs PSIX comparison investment advice?

No. This page is an educational pattern-match against documented public frameworks (Buffett, Graham, Fisher, Lynch, Greenblatt, Munger, Smith), not personalised investment advice. The scores reflect how closely each stock matches each framework's documented criteria — they are not buy/hold/sell recommendations. Always do your own research and consult a licensed financial adviser for personalised advice.

Stock comparison

Paychex

Power Solutions International

Scored across Buffett, Graham, Lynch and Greenblatt - plus a side-by-side metric table covering valuation, quality, growth and balance sheet.

PAYX

Paychex

Market cap

$34.75B

Sector

Industrials

PSIX

Power Solutions International

Market cap

$895.97M

Sector

Industrials

Overall winner

Paychex PAYX

Wins on the combined sum of fit scores across all four strategies. Per-strategy breakdown below.

Fit scores by strategy

Strategy	PAYX	PSIX	Winner
Warren Buffett	74B	41D	PAYX
Benjamin Graham	72B	56D	PAYX
Philip Fisher	71B	33F	PAYX
Peter Lynch	58C	59C	PSIX
Joel Greenblatt	44D	48D	PSIX
Charlie Munger	81A	45D	PAYX
Terry Smith	81A	35D	PAYX

Side-by-side metrics

Metric	PAYX	PSIX
Market cap	$34.75B	$895.97M
P/E (TTM)	19.7x	14.1x
EV/EBIT	14.9x	14.2x
ROIC (TTM)	17.77%	26.81%
Gross margin	73.93%	29.44%
Net margin	25.84%	17.41%
Revenue CAGR 5y	8.26%	12.17%
EPS CAGR 5y	10.82%	-
Debt / Equity	1.2x	0.9x
Dividend yield	4.93%	0.0%

Where each one wins

The metrics with the biggest gap between the two - sorted so the most decisive edges read first.

PAYX leads on

Dividend yield4.93%vs 0.0%+100%
Market cap$34.75Bvs $895.97M+97%
Gross margin73.93%vs 29.44%+60%
Net margin25.84%vs 17.41%+33%

PSIX leads on

ROIC (TTM)26.81%vs 17.77%+34%
Revenue CAGR 5y12.17%vs 8.26%+32%
Debt / Equity0.9xvs 1.2x+30%
P/E (TTM)14.1xvs 19.7x+29%

Educational tool. Fit scores are deterministic projections from public financials onto each investor's published criteria - not personal recommendations or advice.

Paychex

Power Solutions International

Fit scores by strategy

Side-by-side metrics

Where each one wins

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Key terms in this analysis