Universe›Energy›Oil & Gas Storage & Transportation›Oil & Gas Storage & Transportation›Williams Companies
Observatory · observe first
Williams Companies
WMB · United States · Oil & Gas Storage & Transportation · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.200%
12M weight contribution
+0.074 pp
3M weight contribution
+0.104 pp
12M price return
+21.8%
Share of matched S&P 500 members
Monthly observations through Mar 2019
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 |
|---|---|---|---|---|---|
| Mar 2019 | $34.8bn | 0.200% | +0.074 pp | +21.8% | Yes |
| Feb 2019 | $32.3bn | 0.187% | +0.050 pp | +1.2% | Yes |
| Jan 2019 | $32.6bn | 0.108% | -0.041 pp | -9.7% | Yes |
| Dec 2018 | $26.7bn | 0.095% | -0.053 pp | -26.1% | Yes |
| Nov 2018 | $30.7bn | 0.102% | -0.046 pp | -16.3% | Yes |
| Oct 2018 | $20.1bn | 0.068% | -0.080 pp | -19.6% | No |
| Sep 2018 | $22.5bn | 0.072% | -0.076 pp | -10.1% | No |
| Aug 2018 | $24.5bn | 0.079% | -0.069 pp | -3.3% | No |
| Jul 2018 | $24.6bn | 0.144% | -0.004 pp | -2.8% | Yes |
| Jun 2018 | $22.4bn | 0.136% | -0.012 pp | -11.4% | Yes |
| May 2018 | $22.2bn | 0.135% | -0.013 pp | -13.4% | No |
| Apr 2018 | $21.3bn | 0.131% | -0.017 pp | -17.0% | No |
| Mar 2018 | $20.6bn | 0.126% | -0.022 pp | -19.8% | No |
| Feb 2018 | $23.0bn | 0.138% | -0.010 pp | -11.6% | No |
| Jan 2018 | $26.0bn | 0.148% | +0.000 pp | +0.0% | No |
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.