OC
Owens CorningBasic Materials · $9.5B market cap
Verdict
Share price
$118.36
close of Oct 3, 2026
Fair value
$68.60
Sticker Price
Payback Price
$27.44
buy price
OC is Overpriced: at $118.36 it trades 73% above its fair value of $68.60. Its buy price (Payback Price) is $27.44, 77% below today's price. Business quality is mixed: 2 of 5 key numbers clear the 10% bar.
How we valued it
Free Cash Flow. Sales grew 1% a year over the last 3 years, below the 15% we look for in a fast grower, so we value it on its free cash flow instead of an earnings forecast.
Business quality
2 of 5 clear the 10% bar. What are the Big Five?
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2 of the investors we track hold OC. In Q2 2026, 1 added. Who we track
Bill Nygren
Oakmark Funds · as of Q2 2026
$174.1M
1,095,517 shares
Harry Burn
Sound Shore · as of Q2 2026
$92.9M
584,629 shares
Moves in Q2 2026
Added: Bill Nygren
Insider activity
Since Jul 28, 2026: no open-market purchases, 1 sale worth $130K and 21 other filings (stock awards, tax withholding and similar). Why purchases matter
Sales
Other filings
Canovas De La Nuez Jose Manuel
President, Insulation · 2026-08-10
Award
$500K
Del Monaco Nicolas
President, Roofing · 2026-08-10
Award
$1,000K
Collins Jonathan Mark
EVP & Chief Financial Officer · 2026-08-10
Award
$3.0M
Marcon Rachel Barthelemy
President, Doors · 2026-08-10
Award
$1,000K
Elsner Adrienne
director · 2026-08-07
Award
$49K
Show all 21 other filingsShow fewer
FESTA ALFRED E
director · 2026-08-07
Award
$49K
Collins Michelle T
director · 2026-08-07
Award
$58K
Lonergan Edward F
director · 2026-08-07
Award
$91K
Nimocks Suzanne P
director · 2026-08-07
Award
$50K
CORDEIRO EDUARDO E
director · 2026-08-07
Award
$50K
Martin Paul Edward
director · 2026-08-07
Award
$47K
Williams John David
director · 2026-08-07
Award
$47K
Elsner Adrienne
director · 2026-08-06
Award
$15K
FESTA ALFRED E
director · 2026-08-06
Award
$10K
Lonergan Edward F
director · 2026-08-06
Award
$41K
Mendez-Andino Jose
EVP, Chief Innovation Officer · 2026-08-06
Award
$12K
Nimocks Suzanne P
director · 2026-08-06
Award
$17K
CORDEIRO EDUARDO E
director · 2026-08-06
Award
$10K
Martin Paul Edward
director · 2026-08-06
Award
$6K
Williams John David
director · 2026-08-06
Award
$43K
Canovas De La Nuez Jose Manuel
President, Insulation · 2026-07-28
Tax withholding
$153K
About Owens Corning
Owens Corning provides residential and commercial building products in the United States, Europe, the Asia Pacific, and internationally. It operates through three segments: Roofing, Insulation, and Doors. The company offers laminate and strip asphalt roofing shingles, roofing components, and oxidized asphalt. It also provides high, mid, and low temperature products; thermal and acoustical batts, loosefill…
Construction Materials
Fair value and Payback Price are estimates from the company's reported financials, not investment advice. Prices as of the close of Oct 3, 2026. How the Payback Price works