Observatory · observe first
Vistra Corp.
VST · United States · Electric Utilities · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.077%
12M weight contribution
-0.056 pp
3M weight contribution
-0.017 pp
12M price return
-27.0%
Share of matched S&P 500 members
Monthly observations through Aug 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 |
|---|---|---|---|---|---|
| Aug 2026 | $46.1bn | 0.077% | -0.056 pp | -27.0% | No |
| Jul 2026 | $50.0bn | 0.087% | -0.062 pp | -28.6% | Yes |
| Jun 2026 | $53.5bn | 0.093% | -0.049 pp | -17.7% | Yes |
| May 2026 | $54.0bn | 0.094% | -0.030 pp | +0.3% | Yes |
| Apr 2026 | $53.2bn | 0.072% | -0.033 pp | +22.4% | No |
| Mar 2026 | $50.7bn | 0.074% | -0.021 pp | +28.7% | No |
| Feb 2026 | $58.6bn | 0.080% | -0.021 pp | +30.8% | No |
| Jan 2026 | $53.7bn | 0.103% | -0.024 pp | -5.2% | No |
| Dec 2025 | $54.7bn | 0.107% | +0.001 pp | +17.7% | No |
| Nov 2025 | $60.6bn | 0.119% | -0.001 pp | +12.5% | No |
| Oct 2025 | $63.8bn | 0.125% | +0.024 pp | +51.5% | No |
| Sep 2025 | $66.4bn | 0.133% | +0.038 pp | +66.2% | Yes |
| Aug 2025 | $64.1bn | 0.133% | +0.062 pp | +122.9% | Yes |
| Jul 2025 | $70.8bn | 0.149% | +0.100 pp | +165.1% | Yes |
| Jun 2025 | $65.8bn | 0.142% | +0.086 pp | +127.0% | Yes |
| May 2025 | $54.5bn | 0.123% | +0.058 pp | +63.4% | Yes |
| Apr 2025 | $43.9bn | 0.106% | +0.106 pp | +72.4% | No |
| Mar 2025 | $39.8bn | 0.095% | +0.095 pp | +70.0% | No |
| Feb 2025 | $45.3bn | 0.101% | +0.101 pp | +147.5% | No |
| Jan 2025 | $57.2bn | 0.127% | +0.127 pp | +313.7% | Yes |
| Dec 2024 | $46.9bn | 0.106% | +0.106 pp | +261.5% | Yes |
| Nov 2024 | $54.4bn | 0.120% | +0.120 pp | +357.8% | Yes |
| Oct 2024 | $42.9bn | 0.101% | +0.101 pp | +287.3% | Yes |
| Sep 2024 | $40.7bn | 0.095% | +0.095 pp | +262.3% | 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.