MAS vs WMS: Correlation
How closely do Masco (MAS) and Advanced Drainage Systems, Inc. (WMS) trade together? Their weekly returns over three years give a correlation of 0.67, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MAS and WMS?
Across a 3-year window, the weekly returns of MAS and WMS correlate at 0.67, strong. Little has changed lately, as the 1-year reading of 0.64 lands near the 3-year figure. Stretching to 5 years gives 0.59, with an annualized covariance of 735.7 %².
Within MAS's tracked universe of 61 assets, WMS comes in at #22 by 3-year correlation. Twelve-month performance is nearly a tie, at -0.5% for MAS and -4.4% for WMS.
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.
MAS vs WMS: side by side
| MAS (Masco) | WMS (Advanced Drainage Systems, Inc.) | |
|---|---|---|
| 1-year return | -0.5% | -4.4% |
| 5-year return | +29.1% | +22.1% |
| Volatility (ann.) | 29.6% | 37.1% |
| Beta vs S&P 500 | 0.95 | 1.31 |
| Max drawdown (3Y) | -30.9% | -45.8% |
| Market cap | $14.4B | $10.5B |
| P/E (trailing) | 17.0 | 23.6 |
| Dividend yield | 1.71% | 0.52% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | MAS | WMS |
|---|---|---|
| 2022 | -32.1% | -39.5% |
| 2023 | +46.6% | +72.4% |
| 2024 | +10.0% | -17.5% |
| 2025 | -10.9% | +26.0% |
| 2026 | +16.3% | -3.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MAS and WMS good diversifiers for each other?
To a limited degree. At 0.67 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 MAS and WMS?
Using weekly returns as of 2026-08-27: 0.67 over 3 years, with 0.64 over the last year and 0.59 over 5 years.
Is WMS a good diversifier for MAS?
To a limited degree. At 0.67 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 0.67 mean?
A reading of 0.67 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/mas-vs-wms.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/mas-vs-wms/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: MAS correlations · WMS correlations
