Observatory · observe first
First Solar
FSLR · United States · Semiconductors · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.055%
12M weight contribution
+0.012 pp
3M weight contribution
+0.008 pp
12M price return
+48.2%
Share of matched S&P 500 members
Monthly observations through Dec 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 |
|---|---|---|---|---|---|
| Dec 2025 | $28.0bn | 0.055% | +0.012 pp | +48.2% | Yes |
| Nov 2025 | $29.3bn | 0.058% | +0.010 pp | +37.0% | Yes |
| Oct 2025 | $28.6bn | 0.056% | +0.007 pp | +37.3% | Yes |
| Sep 2025 | $23.7bn | 0.047% | -0.015 pp | -11.6% | Yes |
| Aug 2025 | $20.9bn | 0.043% | -0.015 pp | -14.2% | Yes |
| Jul 2025 | $18.7bn | 0.040% | -0.002 pp | -19.1% | Yes |
| Jun 2025 | $17.8bn | 0.038% | -0.007 pp | -26.6% | Yes |
| May 2025 | $17.0bn | 0.038% | -0.017 pp | -41.8% | Yes |
| Apr 2025 | $13.5bn | 0.032% | -0.022 pp | -28.6% | No |
| Mar 2025 | $13.5bn | 0.032% | -0.018 pp | -25.1% | No |
| Feb 2025 | $14.6bn | 0.033% | -0.015 pp | -11.5% | No |
| Jan 2025 | $17.9bn | 0.040% | -0.007 pp | +14.5% | No |
| Dec 2024 | $18.9bn | 0.043% | -0.012 pp | +2.3% | No |
| Nov 2024 | $21.3bn | 0.047% | -0.005 pp | +26.3% | No |
| Oct 2024 | $20.8bn | 0.049% | -0.003 pp | +36.5% | No |
| Sep 2024 | $26.7bn | 0.062% | +0.005 pp | +54.4% | Yes |
| Aug 2024 | $24.3bn | 0.059% | -0.006 pp | +20.2% | Yes |
| Jul 2024 | $23.1bn | 0.041% | -0.007 pp | +4.1% | No |
| Jun 2024 | $24.1bn | 0.045% | -0.002 pp | +18.6% | No |
| May 2024 | $29.1bn | 0.056% | +0.002 pp | +33.9% | Yes |
| Apr 2024 | $18.8bn | 0.055% | -0.011 pp | -3.4% | Yes |
| Mar 2024 | $18.0bn | 0.050% | -0.029 pp | -22.4% | No |
| Feb 2024 | $16.4bn | 0.047% | -0.016 pp | -9.0% | No |
| Jan 2024 | $15.6bn | 0.046% | -0.018 pp | -17.6% | 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.