Observatory · observe first
Duke Energy
DUK · United States · Electric Utilities · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.140%
12M weight contribution
-0.064 pp
3M weight contribution
-0.050 pp
12M price return
+15.3%
Share of matched S&P 500 members
Monthly observations through Feb 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 |
|---|---|---|---|---|---|
| Feb 2026 | $101.8bn | 0.140% | -0.064 pp | +15.3% | No |
| Jan 2026 | $94.4bn | 0.181% | -0.012 pp | +12.3% | No |
| Dec 2025 | $91.1bn | 0.179% | -0.010 pp | +12.7% | No |
| Nov 2025 | $96.4bn | 0.189% | -0.010 pp | +9.7% | No |
| Oct 2025 | $96.7bn | 0.189% | -0.020 pp | +11.8% | No |
| Sep 2025 | $96.2bn | 0.193% | -0.015 pp | +11.3% | No |
| Aug 2025 | $95.3bn | 0.197% | -0.015 pp | +11.5% | No |
| Jul 2025 | $94.5bn | 0.199% | +0.048 pp | +15.5% | No |
| Jun 2025 | $91.7bn | 0.198% | +0.053 pp | +22.2% | No |
| May 2025 | $91.5bn | 0.207% | +0.055 pp | +18.0% | No |
| Apr 2025 | $94.7bn | 0.228% | +0.008 pp | +29.0% | Yes |
| Mar 2025 | $94.7bn | 0.225% | +0.018 pp | +31.0% | Yes |
| Feb 2025 | $91.2bn | 0.204% | +0.001 pp | +32.9% | Yes |
| Jan 2025 | $86.5bn | 0.192% | -0.027 pp | +21.6% | No |
| Dec 2024 | $83.2bn | 0.189% | -0.034 pp | +15.6% | No |
| Nov 2024 | $90.4bn | 0.200% | -0.022 pp | +32.0% | Yes |
| Oct 2024 | $89.0bn | 0.209% | -0.024 pp | +35.2% | Yes |
| Sep 2024 | $89.0bn | 0.207% | -0.020 pp | +36.2% | Yes |
| Aug 2024 | $88.0bn | 0.213% | -0.005 pp | +33.8% | Yes |
| Jul 2024 | $84.3bn | 0.151% | -0.006 pp | +22.0% | No |
| Jun 2024 | $77.4bn | 0.145% | -0.015 pp | +16.7% | No |
| May 2024 | $79.9bn | 0.153% | -0.017 pp | +21.2% | No |
| Apr 2024 | $75.7bn | 0.219% | -0.038 pp | +3.9% | Yes |
| Mar 2024 | $74.5bn | 0.207% | -0.047 pp | +4.8% | 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.