Observatory · observe first
Edison International
EIX · United States · Electric Utilities · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.042%
12M weight contribution
-0.033 pp
3M weight contribution
-0.001 pp
12M price return
-28.9%
Share of matched S&P 500 members
Monthly observations through Oct 2025
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 |
|---|---|---|---|---|---|
| Oct 2025 | $21.3bn | 0.042% | -0.033 pp | -28.9% | No |
| Sep 2025 | $21.3bn | 0.043% | -0.036 pp | -33.2% | No |
| Aug 2025 | $21.6bn | 0.045% | -0.036 pp | -32.1% | No |
| Jul 2025 | $20.1bn | 0.042% | -0.013 pp | -31.5% | No |
| Jun 2025 | $19.9bn | 0.043% | -0.009 pp | -24.8% | No |
| May 2025 | $21.4bn | 0.049% | -0.008 pp | -24.2% | No |
| Apr 2025 | $20.6bn | 0.049% | -0.030 pp | -21.2% | No |
| Mar 2025 | $22.7bn | 0.054% | -0.022 pp | -14.1% | No |
| Feb 2025 | $21.0bn | 0.047% | -0.028 pp | -16.5% | No |
| Jan 2025 | $20.9bn | 0.046% | -0.030 pp | -16.5% | No |
| Dec 2024 | $30.9bn | 0.070% | -0.012 pp | +15.2% | No |
| Nov 2024 | $34.0bn | 0.075% | -0.005 pp | +36.7% | Yes |
| Oct 2024 | $31.9bn | 0.075% | -0.007 pp | +36.3% | Yes |
| Sep 2024 | $33.6bn | 0.078% | -0.003 pp | +42.3% | Yes |
| Aug 2024 | $33.6bn | 0.081% | -0.003 pp | +32.2% | Yes |
| Jul 2024 | $30.9bn | 0.055% | -0.005 pp | +16.3% | No |
| Jun 2024 | $27.6bn | 0.052% | -0.010 pp | +8.1% | No |
| May 2024 | $29.6bn | 0.057% | -0.007 pp | +19.0% | No |
| Apr 2024 | $27.3bn | 0.079% | -0.016 pp | +0.9% | Yes |
| Mar 2024 | $27.2bn | 0.075% | -0.017 pp | +4.8% | No |
| Feb 2024 | $26.2bn | 0.075% | -0.014 pp | +7.3% | No |
| Jan 2024 | $25.9bn | 0.077% | -0.013 pp | +2.3% | No |
| Dec 2023 | $27.4bn | 0.082% | -0.006 pp | +17.4% | Yes |
| Nov 2023 | $25.7bn | 0.080% | -0.006 pp | +5.0% | 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.