What is Corning's PEG ratio?

Corning (GLW) reported PEG ratio of 0.2× in Q1 2026.

What does PEG ratio mean?

The P/E ratio adjusted for how fast earnings are growing.

How do you interpret PEG ratio?

Around 1.0 is often cited as fairly valued for the growth on offer; below 1.0 can flag a growth bargain. Highly sensitive to the growth input and meaningless when growth is zero or negative.

How does PEG ratio compare across companies?

A rough cross-company growth-adjusted screen; treat as directional given its sensitivity to the (trailing) growth basis.

Corning GLW PEG ratio

PEG ratio at other companies

Thermo Fisher ScientificTMO

5.2×+1.6×

AmphenolAPH

0.5×-0.6×

Amkor TechnologyAMKR

0.7×—

EntegrisENTG

1.8×-3.4×

CienaCIEN

0.5×—

CelesticaCLS

0.3×-0.1×

Other financials

Income statement

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Revenue$4.1B+20.1%

Gross profit$1.5B+25.9%

Operating income$639.0M+43.6%

Net income$371.0M+136%

EPS (diluted)$0.43+139%

Balance sheet

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Cash & equivalents$1.8B+29.1%

Total debt$248.0M-96.6%

Total equity$11.8B+10.2%

Total assets$31.3B+14.1%

Cash flow

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Operating cash flow$362.0M+140%

CapEx$332.0M+59.6%

Free cash flow$30.0M+153%

Valuation

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Market cap$150.96B+198%

Enterprise value$149.45B+155%

P/E83.4×-28.3×

P/S9.3×+5.5×

Profitability

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Gross margin36.4%+3.3pp

Operating margin15.2%+5.4pp

Net margin11.1%+7.8pp

Returns & leverage

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Return on equity16.1%+11.9pp

Debt / equity0×-0.7×

Current ratio1.6×-0.1×

Where this comes from

Calculated from Corning’s reported figures.

market cap/net income=0.2×

Based on the most recent quarter.

The official record: Corning’s 10-Q, filed May 1, 2026, on SEC EDGAR. View the filing →

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Questions, answered.

What is Corning's PEG ratio?: Corning (GLW) reported PEG ratio of 0.2× in Q1 2026.
What does PEG ratio mean?: The P/E ratio adjusted for how fast earnings are growing.
How do you interpret PEG ratio?: Around 1.0 is often cited as fairly valued for the growth on offer; below 1.0 can flag a growth bargain. Highly sensitive to the growth input and meaningless when growth is zero or negative.
How does PEG ratio compare across companies?: A rough cross-company growth-adjusted screen; treat as directional given its sensitivity to the (trailing) growth basis.