Owens Corning

Construction Materials · Basic Materials

Winston Score

Winston is worried

Weak fundamentals across most pillars.

Data as of Aug 23, 2026 · filings through Jun 30, 2026

How the score breaks down

Quality

Mixed

Growth

Weak

Cash Flow

Weak

Stability

Mixed

Valuation

Data not available

Dividends

Strong

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Winston Score History

The full picture

Owens Corning makes building materials used in homes and commercial buildings. Its main products are insulation, roofing shingles, and composite materials made from fiberglass. The company sells to contractors, builders, and home improvement retailers across North America and beyond. It is one of the largest producers of residential roofing and insulation products in the United States.

The company earns money by selling these materials directly to distributors, retailers like Home Depot, and professional contractors. Most revenue comes from North America, though it also operates in Europe and Asia. Owens Corning completed a large acquisition of Masonite, a door manufacturer, in 2024, which expanded its product lineup. Its competitive position comes from scale, brand recognition, and a wide distribution network. The main risk is that demand for its products is closely tied to housing construction and renovation activity, which slows sharply when interest rates rise and new home building declines.

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Growth Profile

For growth stock investors

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

Revenue Growth

+0.3% YoY

YoY Growth Rate

Slow revenue growth

EPS Growth

-34.2% YoY

YoY Growth Rate

Earnings declining

Insider Activity

1.0%ownership

→ Flat

Insider ownership roughly steady over the past year

Cash Runway

~4 months

$271M cash & investments

Quarterly Free Cash Flow

↓ Burn rate worsening

Short runway — potential dilution ahead through share issuance

Cash watch

Owens Corning has less than a year of cash at its current burn rate. Growth investors should watch for potential share dilution from future fundraising — that directly reduces your ownership.

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

Every number that matters to educated investors.

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Quality

Profit per sale

Gross Margin

28.8%

Modest — 28.8% gross margin

Profit after running costs

Operating Margin

17.5%

Healthy — 17.5% operating margin

Return on the money invested

ROCE

6.8%

Weak — 6.8% return on capital

ROIC between 5% and 15%. They earn 5 to 15 cents back per year on every dollar invested.

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Growth

Sales growth

Sales YoY

-11.8%

Shrinking sales (-11.8% YoY)

Profit growth

EPS YoY

-308.2%

Earnings shrinking (-308.2% YoY)

Earnings per share down more than 10%. Either a bad year, or a real decline.

How steady the profit is

EPS Consistency

1/8 quarters

Earnings rarely grow — volatile business

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Cash Flow

Profit that turns into cash

Cash Conversion

N/A

Data not available

Spare cash per sale

FCF Margin

1.7%

Thin free cash flow (1.7%)

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

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Stability

What it owes vs what it owns

Debt / Equity

1.38

Elevated debt (1.38)

Covers its interest

Interest Cover

2.31x

Tight — interest eats into profit (2.3x)

Interest coverage between 1 and 3. Profits cover interest, but with little room to spare.

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Valuation

Price vs profit

P/E Ratio (TTM)

N/M

no trend

Negative earnings — P/E not meaningful

Cheaper or dearer next year

P/E vs Forward

N/A

not available

Data not available

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Dividends

Dividend

Dividend Yield

2.20%

no trend

Moderate income — 2.20% yield

Standard yield zone for stable dividend payers. A meaningful piece of total return.

Dividend record

Dividend Growth

+14.6%

no trend

Dividend growing fast (14.6% YoY)

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