Observatory · observe first
Valero Energy
VLO · United States · Oil & Gas Refining & Marketing · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.157%
12M weight contribution
+0.067 pp
3M weight contribution
+0.056 pp
12M price return
+132.7%
Share of matched S&P 500 members
Monthly observations through Jul 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 |
|---|---|---|---|---|---|
| Jul 2026 | $90.1bn | 0.157% | +0.067 pp | +132.7% | Yes |
| Jun 2026 | $77.3bn | 0.134% | +0.044 pp | +98.7% | Yes |
| May 2026 | $72.7bn | 0.126% | +0.034 pp | +94.7% | Yes |
| Apr 2026 | $75.0bn | 0.102% | +0.014 pp | +124.0% | Yes |
| Mar 2026 | $73.9bn | 0.108% | +0.009 pp | +92.6% | Yes |
| Feb 2026 | $61.2bn | 0.084% | -0.008 pp | +61.1% | No |
| Jan 2026 | $55.3bn | 0.106% | +0.012 pp | +39.6% | Yes |
| Dec 2025 | $49.7bn | 0.097% | +0.009 pp | +37.0% | No |
| Nov 2025 | $53.9bn | 0.106% | +0.009 pp | +31.1% | Yes |
| Oct 2025 | $51.7bn | 0.101% | +0.005 pp | +35.0% | Yes |
| Sep 2025 | $52.9bn | 0.106% | +0.005 pp | +30.2% | Yes |
| Aug 2025 | $47.2bn | 0.098% | -0.016 pp | +7.0% | Yes |
| Jul 2025 | $42.7bn | 0.090% | -0.003 pp | -11.7% | No |
| Jun 2025 | $42.1bn | 0.091% | -0.005 pp | -11.6% | No |
| May 2025 | $40.4bn | 0.092% | -0.007 pp | -15.4% | No |
| Apr 2025 | $36.4bn | 0.087% | -0.064 pp | -25.2% | No |
| Mar 2025 | $41.6bn | 0.099% | -0.059 pp | -20.3% | Yes |
| Feb 2025 | $41.2bn | 0.092% | -0.043 pp | -4.8% | No |
| Jan 2025 | $42.1bn | 0.094% | -0.047 pp | -1.4% | No |
| Dec 2024 | $38.8bn | 0.088% | -0.044 pp | -3.0% | No |
| Nov 2024 | $44.0bn | 0.097% | -0.036 pp | +14.2% | No |
| Oct 2024 | $41.1bn | 0.097% | -0.050 pp | +5.2% | No |
| Sep 2024 | $43.3bn | 0.101% | -0.066 pp | -1.9% | No |
| Aug 2024 | $47.0bn | 0.114% | -0.033 pp | +16.3% | 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.