Which is better, KLAC or ONTO?

On the Buffett-Fit framework, KLA Corporation (KLAC) currently grades higher than ONTO — 80/100 (A grade) vs 45/100 (D). That said, "better" depends on which framework you trust — KLAC wins on Warren Buffett, Benjamin Graham, Philip Fisher, Peter Lynch, Joel Greenblatt, Charlie Munger, and Terry Smith; ONTO wins on none. The full pillar breakdown is on this page.

Should I buy KLAC or ONTO?

This page is an educational comparison, not investment advice. Both KLAC and ONTO 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 KLAC better than ONTO for value investing?

On the Buffett-style value-investing framework, KLAC currently grades higher — 80/100 vs 45/100, a 35-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 KLAC and ONTO 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). KLAC currently scores 80/100 (A grade); ONTO scores 45/100 (D grade). The "Where each wins" section on this page breaks down which pillar each stock dominates.

Which has the stronger moat, KLAC or ONTO?

Moat strength is one of the five pillars in the Buffett-Fit score on this page. KLAC and ONTO 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, KLAC or ONTO?

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 KLAC and ONTO both Technology stocks?

Yes — both KLA Corporation (KLAC) and Onto Innovation Inc. (ONTO) operate in the Technology 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 KLAC vs ONTO 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

KLA

Onto Innovation

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

KLAC

KLA

Market cap

$246.68B

Sector

Technology

ONTO

Onto Innovation

Market cap

$13.05B

Sector

Technology

Overall winner

KLA KLAC

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

Fit scores by strategy

Strategy	KLAC	ONTO	Winner
Warren Buffett	80A	45D	KLAC
Benjamin Graham	94A	80A	KLAC
Philip Fisher	90A	41D	KLAC
Peter Lynch	78B	15F	KLAC
Joel Greenblatt	78C	41D	KLAC
Charlie Munger	93A	37D	KLAC
Terry Smith	94A	40D	KLAC

Side-by-side metrics

Metric	KLAC	ONTO
Market cap	$246.68B	$13.05B
P/E (TTM)	51.8x	134.4x
EV/EBIT	46.9x	105.7x
ROIC (TTM)	36.29%	4.09%
Gross margin	61.75%	48.8%
Net margin	35.66%	10.33%
Revenue CAGR 5y	15.13%	6.25%
EPS CAGR 5y	22.65%	-0.97%
Debt / Equity	1.1x	-
Dividend yield	0.43%	0.0%

Where each one wins

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

KLAC leads on

EPS CAGR 5y22.65%vs -0.97%+104%
Dividend yield0.43%vs 0.0%+100%
Market cap$246.68Bvs $13.05B+95%
ROIC (TTM)36.29%vs 4.09%+89%

ONTO leads on

Debt / Equity-vs 1.1x+100%

More like KLAC

KLAC vs FICO KLAC vs FTNT KLAC vs CDNS KLAC vs NP KLAC vs 6920.T KLAC vs APP

More like ONTO

ONTO vs FICO ONTO vs FTNT ONTO vs CDNS ONTO vs NP ONTO vs 6920.T ONTO vs APP

Read the full Buffett-Brain analysis for KLAC Read the full Buffett-Brain analysis for ONTO

Related on invest-like

Strongest Moat Highest ROIC Warren Buffett strategy Economic Moat

Key terms in this analysis

ROIC Free Cash Flow (FCF)Economic Moat P/E Ratio Margin of Safety Quality Score

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

Stock comparison

KLA

Onto Innovation

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

KLAC

KLA

Market cap

$246.68B

Sector

Technology

ONTO

Onto Innovation

Market cap

$13.05B

Sector

Technology

Overall winner

KLA KLAC

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

Fit scores by strategy

Strategy	KLAC	ONTO	Winner
Warren Buffett	80A	45D	KLAC
Benjamin Graham	94A	80A	KLAC
Philip Fisher	90A	41D	KLAC
Peter Lynch	78B	15F	KLAC
Joel Greenblatt	78C	41D	KLAC
Charlie Munger	93A	37D	KLAC
Terry Smith	94A	40D	KLAC

Side-by-side metrics

Metric	KLAC	ONTO
Market cap	$246.68B	$13.05B
P/E (TTM)	51.8x	134.4x
EV/EBIT	46.9x	105.7x
ROIC (TTM)	36.29%	4.09%
Gross margin	61.75%	48.8%
Net margin	35.66%	10.33%
Revenue CAGR 5y	15.13%	6.25%
EPS CAGR 5y	22.65%	-0.97%
Debt / Equity	1.1x	-
Dividend yield	0.43%	0.0%

Where each one wins

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

KLAC leads on

EPS CAGR 5y22.65%vs -0.97%+104%
Dividend yield0.43%vs 0.0%+100%
Market cap$246.68Bvs $13.05B+95%
ROIC (TTM)36.29%vs 4.09%+89%

ONTO leads on

Debt / Equity-vs 1.1x+100%

More like KLAC

KLAC vs FICO KLAC vs FTNT KLAC vs CDNS KLAC vs NP KLAC vs 6920.T KLAC vs APP

More like ONTO

ONTO vs FICO ONTO vs FTNT ONTO vs CDNS ONTO vs NP ONTO vs 6920.T ONTO vs APP

Read the full Buffett-Brain analysis for KLAC Read the full Buffett-Brain analysis for ONTO

Related on invest-like

Strongest Moat Highest ROIC Warren Buffett strategy Economic Moat

Key terms in this analysis

ROIC Free Cash Flow (FCF)Economic Moat P/E Ratio Margin of Safety Quality Score

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