Observatory · observe first
First Solar
FSLR · United States · Semiconductors · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Latest available · not live
20182026
Universe weight
0.032%
12M weight contribution
-0.016 pp
3M weight contribution
-0.012 pp
12M price return
-20.6%
Share of matched S&P 500 members
Monthly observations through Sep 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 |
|---|---|---|---|---|---|
| Sep 2026 | $18.8bn | 0.032% | -0.016 pp | -20.6% | No |
| Aug 2026 | $21.7bn | 0.036% | -0.007 pp | +3.4% | No |
| Jul 2026 | $22.7bn | 0.040% | +0.000 pp | +20.8% | Yes |
| Jun 2026 | $25.4bn | 0.044% | +0.006 pp | +42.5% | Yes |
| May 2026 | $33.0bn | 0.057% | +0.019 pp | +94.1% | Yes |
| Apr 2026 | $21.7bn | 0.029% | -0.003 pp | +60.5% | No |
| Mar 2026 | $21.2bn | 0.031% | -0.001 pp | +56.0% | No |
| Feb 2026 | $21.2bn | 0.029% | -0.004 pp | +44.8% | No |
| Jan 2026 | $24.2bn | 0.046% | +0.006 pp | +34.6% | No |
| 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 |
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.