Observatory · observe first
Steel Dynamics
STLD · United States · Steel · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.038%
12M weight contribution
-0.007 pp
3M weight contribution
-0.010 pp
12M price return
+45.1%
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 | $28.0bn | 0.038% | -0.007 pp | +45.1% | No |
| Jan 2026 | $26.2bn | 0.050% | +0.007 pp | +42.1% | Yes |
| Dec 2025 | $24.7bn | 0.048% | +0.009 pp | +50.7% | Yes |
| Nov 2025 | $24.5bn | 0.048% | -0.001 pp | +17.3% | Yes |
| Oct 2025 | $22.9bn | 0.045% | -0.002 pp | +22.0% | Yes |
| Sep 2025 | $20.5bn | 0.041% | -0.004 pp | +12.3% | No |
| Aug 2025 | $19.3bn | 0.040% | -0.005 pp | +11.3% | No |
| Jul 2025 | $18.9bn | 0.040% | +0.002 pp | -2.7% | No |
| Jun 2025 | $19.0bn | 0.041% | +0.003 pp | +0.4% | No |
| May 2025 | $18.3bn | 0.041% | +0.001 pp | -6.6% | No |
| Apr 2025 | $19.5bn | 0.047% | -0.013 pp | +1.2% | Yes |
| Mar 2025 | $18.8bn | 0.045% | -0.020 pp | -14.3% | No |
| Feb 2025 | $20.3bn | 0.045% | -0.015 pp | +2.4% | Yes |
| Jan 2025 | $19.5bn | 0.043% | -0.015 pp | +7.8% | No |
| Dec 2024 | $17.4bn | 0.039% | -0.018 pp | -2.0% | No |
| Nov 2024 | $22.1bn | 0.049% | -0.011 pp | +23.7% | Yes |
| Oct 2024 | $20.1bn | 0.047% | -0.013 pp | +24.3% | Yes |
| Sep 2024 | $19.5bn | 0.045% | -0.014 pp | +19.3% | Yes |
| Aug 2024 | $18.4bn | 0.045% | -0.012 pp | +13.7% | No |
| Jul 2024 | $20.9bn | 0.038% | -0.002 pp | +26.8% | No |
| Jun 2024 | $20.3bn | 0.038% | -0.004 pp | +20.6% | No |
| May 2024 | $21.0bn | 0.040% | +0.002 pp | +47.8% | No |
| Apr 2024 | $20.6bn | 0.060% | -0.001 pp | +27.0% | No |
| Mar 2024 | $23.4bn | 0.065% | -0.001 pp | +33.0% | 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.