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Corning

0R2X.L
59
Hardware, Equipment & Parts · Technology
Price
155.20 GBp
-0.49 (-0.31%)
Market Cap
£133.58B
Exchange
London Stock Exchange
Winston Score
59
Winston is curious
A decent business — some strong pillars, some weaker.

Share count rising — dilution

+3.2% over 4y

The company has issued more shares over this period, which dilutes each existing shareholder’s stake.

Diluted shares outstanding: 844.0M (2021) → 871.0M (2025)

Corning makes specialty glass and materials that go inside everyday technology products. Its most well-known product is Gorilla Glass, the tough screen cover used on smartphones made by Apple, Samsung, and others. The company also makes fiber optic cables for internet networks, glass for TV screens, and lab equipment used in drug research.

Corning earns money by selling these materials to large manufacturers around the world. It operates globally, with major customers in the United States, Asia, and Europe, and generates roughly $14 billion in annual revenue. Its main competitive advantage is deep technical expertise in glass science that is very hard for competitors to copy. The biggest growth driver is demand for fiber optic cables, as telecom companies and governments spend heavily to expand broadband internet infrastructure — though a slowdown in smartphone sales or capital spending by telecom companies could weigh on results.

Winston Score History

Growth Profile

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

+20.0% YoY

YoY Growth Rate

Steady revenue growth

EPS Growth

+138.9% YoY

YoY Growth Rate

Strong earnings growth

R&D Spend

$1.1B/ year

Flat (+2% vs prior year)

7.1% of revenue

Below sector average (15%)

Steady R&D investment year-over-year

Insider Activity

8.2%ownership

Insiders own a meaningful stake in the company

Cash Position

Cash flow positive

$1.8B cash & investments

Quarterly Free Cash Flow

→ Burn rate stable

Company generates more cash than it spends — no dilution risk from fundraising

Growth + cash flow

Corning is a rare growth stock that's already generating positive cash flow while growing at 20%. The Winston Score doesn't fully credit this transition from "burner" to "earner."

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Score breakdown

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Quality

Gross Margin
36.6%
Modest — 36.6% gross margin
Operating Margin
15.1%
Healthy — 15.1% operating margin
ROCE
3.0%
Weak — 3.0% return on capital

ROIC between 0% and 5%. They earn a few cents back per dollar invested in the business.

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Growth

Sales YoY
+20.1%
Fast-growing sales (20.1% YoY)
EPS YoY
+305.8%
Earnings growing fast (305.8% YoY)

Earnings growing 25%+ a year. The compounder zone.

EPS Consistency
8/8 quarters
Every recent quarter grew earnings vs last year

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Cash Flow

Cash Conversion
161%
Turns 161% of profit into real cash
FCF Margin
9.2%
Modest free cash flow (9.2%)

FCF margin between 0% and 10%. Some cash from sales, but not a lot.

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Stability

Debt / Equity
0.77
Moderate — manageable debt (0.77)
Interest Cover
7.18x
Adequate interest coverage (7.2x)

Interest coverage between 3 and 8. Profits cover interest several times over.

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Valuation

P/E Ratio (TTM)
73.6x
Expensive — P/E 73.6

P/E over 35. The market is pricing in heavy, sustained growth.

P/E vs Forward
+27.6
GROWING
Earnings expected to grow meaningfully — cheaper on forward P/E (73.6 → 46.0)

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Dividends

Dividend Yield
0.57%
Small dividend — 0.57% yield

Modest yield. The bulk of any return needs to come from price appreciation.

Dividend Growth
+0.0%
Dividend flat

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