CluenexOwens Corning OC
Owens Corning scores weak on business quality (3.8 of 10). Here is why, in plain words, and what our sealed record shows.
Why it matters
- What Owens Corning does
Owens Corning manufactures building products, specializing in insulation, roofing, and fiberglass composites. Contractors and builders pay for these materials to insulate and protect residential and commercial structures.
- What it does best
Owens Corning dominates insulation and roofing supply chains through unmatched scale. Its gross margin sits at 26.5%, comparing with peer CSL at 35.3% but backed by massive manufacturing footprints that smaller rivals cannot easily replicate.
- The main risk
Net debt stands at $4.8 billion with a debt-to-equity ratio of 1.3. This heavy leverage leaves little margin for error if housing demand slows further and squeezes free cash flow.
Quality, check by check
Scored against its own industry, from company filings.
Operating margin stands at 13.4% while net margin dips to -6.8% due to a net loss of $671M. Profitability is compressing as costs outpace revenue gains during this cycle.
The moat relies on massive distribution networks locking in contractors. Its gross margin ranks in the bottom quartile at 25th percentile, limiting pricing power against rivals.
Revenue grew 2.6% to reach $9.8B over the latest period. This rate sits in the 38th percentile of its sector, showing a slowing pace compared to prior years.
Total debt of $5.2B outweighs cash of $345M, pushing net debt to $4.8B. Free cash flow came in at $897M. The balance sheet is softening under heavier debt loads.
Insiders
Executives and directors, from SEC Form 4 filings we read ourselves. Open market trades only; grants, option exercises and pre-planned sales left out.
No open market buys or unplanned sales by executives or directors.
Our sealed record on OC
Verdicts appear here 30 days after we publish them; members see today's. Each one is in the nightly ledger, fingerprinted the night it was made.
The first sealed verdicts appear here on Oct 11, 2026.
Questions
Owens Corning scores weak on the Cluenex quality check (3.8 of 10), measured against its own industry. Profitability is weak, moat fair, growth slow and financial health weak.
In the last 90 days of SEC Form 4 filings: No open market buys or unplanned sales by executives or directors.
Oct 28, 2026.
See OC today
- Today's verdict on OC, and why
- Fair value with cautious, base and optimistic cases
- The exact price that would change the verdict
- Which stocks each signal names, the night it fires
Cite this page: Cluenex, “Owens Corning (OC)”, https://cluenex.com/stocks/oc/, data as of Oct 10, 2026.