Observatory · observe first
Alliant Energy
LNT · United States · Electric Utilities · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.063%
12M weight contribution
+0.009 pp
3M weight contribution
+0.027 pp
12M price return
+22.5%
Share of matched S&P 500 members
Monthly observations through Feb 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 |
|---|---|---|---|---|---|
| Feb 2019 | $10.8bn | 0.063% | +0.009 pp | +22.5% | Yes |
| Jan 2019 | $10.5bn | 0.035% | -0.018 pp | +15.5% | Yes |
| Dec 2018 | $10.0bn | 0.036% | -0.017 pp | +8.8% | No |
| Nov 2018 | $10.7bn | 0.036% | -0.017 pp | +16.9% | No |
| Oct 2018 | $10.0bn | 0.034% | -0.018 pp | +10.7% | No |
| Sep 2018 | $10.0bn | 0.032% | -0.021 pp | +8.8% | No |
| Aug 2018 | $10.0bn | 0.032% | -0.020 pp | +9.5% | No |
| Jul 2018 | $9.9bn | 0.058% | +0.006 pp | +9.8% | No |
| Jun 2018 | $9.8bn | 0.059% | +0.007 pp | +7.3% | Yes |
| May 2018 | $9.6bn | 0.058% | +0.006 pp | +5.0% | Yes |
| Apr 2018 | $9.9bn | 0.061% | +0.009 pp | +8.9% | Yes |
| Mar 2018 | $9.5bn | 0.058% | +0.006 pp | +2.8% | Yes |
| Feb 2018 | $8.9bn | 0.054% | +0.001 pp | -2.8% | Yes |
| Jan 2018 | $9.2bn | 0.052% | +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.