Observatory · observe first
Masco
MAS · United States · Building Products · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.026%
12M weight contribution
-0.012 pp
3M weight contribution
-0.000 pp
12M price return
-15.1%
Share of matched S&P 500 members
Monthly observations through Jan 2026
Company price index
A separate dimension from market allocation
Historical observations
Most recent 24 observations at or before the selected month
| Month | Market cap | Universe weight | 12M weight change | 12M return | Above 6M weight average |
|---|---|---|---|---|---|
| Jan 2026 | $13.7bn | 0.026% | -0.012 pp | -15.1% | No |
| Dec 2025 | $13.2bn | 0.026% | -0.010 pp | -10.9% | No |
| Nov 2025 | $13.5bn | 0.026% | -0.012 pp | -18.0% | No |
| Oct 2025 | $13.5bn | 0.026% | -0.014 pp | -17.6% | No |
| Sep 2025 | $14.7bn | 0.030% | -0.013 pp | -14.7% | No |
| Aug 2025 | $15.4bn | 0.032% | -0.010 pp | -6.2% | Yes |
| Jul 2025 | $14.3bn | 0.030% | -0.000 pp | -11.0% | No |
| Jun 2025 | $13.6bn | 0.029% | +0.002 pp | -1.9% | No |
| May 2025 | $13.2bn | 0.030% | +0.000 pp | -9.2% | No |
| Apr 2025 | $12.8bn | 0.031% | -0.013 pp | -10.1% | No |
| Mar 2025 | $14.7bn | 0.035% | -0.013 pp | -10.4% | No |
| Feb 2025 | $15.9bn | 0.036% | -0.013 pp | -0.5% | No |
| Jan 2025 | $17.1bn | 0.038% | -0.007 pp | +19.7% | No |
| Dec 2024 | $15.7bn | 0.036% | -0.009 pp | +10.0% | No |
| Nov 2024 | $17.4bn | 0.038% | -0.004 pp | +35.1% | Yes |
| Oct 2024 | $17.2bn | 0.041% | +0.001 pp | +56.0% | Yes |
| Sep 2024 | $18.3bn | 0.043% | +0.002 pp | +59.7% | Yes |
| Aug 2024 | $17.4bn | 0.042% | -0.000 pp | +37.1% | Yes |
| Jul 2024 | $17.0bn | 0.030% | +0.001 pp | +30.6% | No |
| Jun 2024 | $14.7bn | 0.028% | -0.002 pp | +18.3% | No |
| May 2024 | $15.4bn | 0.029% | +0.003 pp | +47.3% | No |
| Apr 2024 | $15.1bn | 0.044% | +0.003 pp | +30.4% | No |
| Mar 2024 | $17.3bn | 0.048% | +0.010 pp | +61.8% | Yes |
| Feb 2024 | $16.9bn | 0.048% | +0.007 pp | +49.3% | Yes |
Its weight is estimated market cap divided by the total estimated market cap of matched S&P 500 members for the month. This is not an official float-adjusted S&P index weight.