MBC vs OC: Correlation
How closely do MasterBrand, Inc. (MBC) and Owens Corning Inc (OC) trade together? Their weekly returns over three years give a correlation of 0.73, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MBC and OC?
Across a 3-year window, the weekly returns of MBC and OC correlate at 0.73, strong. Recent behaviour matches the longer record: 0.79 over 1 year against 0.73 over 3. Stretching to 5 years gives 0.68, with an annualized covariance of 1126.0 %².
OC is one of the assets that tracks MBC most closely: it ranks #1 out of the 19 assets we track against MBC. Correlation aside, the last 12 months split them widely, with OC ahead by 30.2 points (-33.8% versus -3.6%).
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
MBC vs OC: side by side
| MBC (MasterBrand, Inc.) | OC (Owens Corning Inc) | |
|---|---|---|
| 1-year return | -33.8% | -3.6% |
| 5-year return | n/a | +60.3% |
| Volatility (ann.) | 43.7% | 35.1% |
| Beta vs S&P 500 | 1.16 | 1.41 |
| Max drawdown (3Y) | -64.7% | -52.5% |
| Market cap | $1.8B | $11.4B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 2.10% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | MBC | OC |
|---|---|---|
| 2022 | – | -4.2% |
| 2023 | +96.7% | +77.2% |
| 2024 | -1.6% | +16.6% |
| 2025 | -24.4% | -33.0% |
| 2026 | -21.6% | +30.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MBC and OC good diversifiers for each other?
To a limited degree. At 0.73 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between MBC and OC?
Using weekly returns as of 2026-08-27: 0.73 over 3 years, with 0.79 over the last year and 0.68 over 5 years.
Is OC a good diversifier for MBC?
To a limited degree. At 0.73 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.73 mean?
A reading of 0.73 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/mbc-vs-oc.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/mbc-vs-oc/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: MBC correlations · OC correlations
