Observatory · observe first
Moderna
MRNA · United States · Biotechnology · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Latest available · not live
20182026
Universe weight
0.129%
12M weight contribution
+0.109 pp
3M weight contribution
+0.081 pp
12M price return
+645.5%
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 | $76.9bn | 0.129% | +0.109 pp | +645.5% | Yes |
| Aug 2026 | $56.0bn | 0.093% | +0.074 pp | +482.6% | Yes |
| Jul 2026 | $21.9bn | 0.038% | +0.014 pp | +85.5% | Yes |
| Jun 2026 | $27.8bn | 0.048% | +0.025 pp | +153.8% | Yes |
| May 2026 | $18.7bn | 0.032% | +0.009 pp | +77.7% | Yes |
| Apr 2026 | $18.1bn | 0.025% | -0.002 pp | +61.0% | No |
| Mar 2026 | $20.1bn | 0.029% | +0.003 pp | +79.2% | Yes |
| Feb 2026 | $21.2bn | 0.029% | +0.002 pp | +73.0% | Yes |
| Jan 2026 | $17.2bn | 0.033% | -0.001 pp | +11.8% | Yes |
| Dec 2025 | $11.5bn | 0.023% | -0.014 pp | -29.1% | Yes |
| Nov 2025 | $10.1bn | 0.020% | -0.017 pp | -39.7% | No |
| Oct 2025 | $10.6bn | 0.021% | -0.028 pp | -50.0% | No |
| Sep 2025 | $10.0bn | 0.020% | -0.040 pp | -61.3% | No |
| Aug 2025 | $9.4bn | 0.019% | -0.052 pp | -68.9% | No |
| Jul 2025 | $11.4bn | 0.024% | -0.058 pp | -75.2% | No |
| Jun 2025 | $10.7bn | 0.023% | -0.062 pp | -76.8% | No |
| May 2025 | $10.3bn | 0.023% | -0.081 pp | -81.4% | No |
| Apr 2025 | $11.0bn | 0.026% | -0.096 pp | -74.1% | No |
| Mar 2025 | $10.9bn | 0.026% | -0.087 pp | -73.4% | No |
| Feb 2025 | $11.9bn | 0.027% | -0.074 pp | -66.4% | No |
| Jan 2025 | $15.2bn | 0.034% | -0.081 pp | -61.0% | No |
| Dec 2024 | $16.0bn | 0.036% | -0.077 pp | -58.2% | No |
| Nov 2024 | $16.6bn | 0.037% | -0.056 pp | -44.6% | No |
| Oct 2024 | $20.9bn | 0.049% | -0.049 pp | -28.4% | 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.