Observatory · observe first
Regeneron Pharmaceuticals
REGN · United States · Biotechnology · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.147%
12M weight contribution
-0.113 pp
3M weight contribution
-0.009 pp
12M price return
-27.6%
Share of matched S&P 500 members
Monthly observations through Feb 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 |
|---|---|---|---|---|---|
| Feb 2025 | $65.7bn | 0.147% | -0.113 pp | -27.6% | No |
| Jan 2025 | $63.2bn | 0.141% | -0.123 pp | -28.6% | No |
| Dec 2024 | $66.9bn | 0.152% | -0.094 pp | -18.9% | No |
| Nov 2024 | $70.5bn | 0.156% | -0.086 pp | -8.9% | No |
| Oct 2024 | $78.8bn | 0.185% | -0.064 pp | +7.5% | No |
| Sep 2024 | $98.8bn | 0.230% | -0.028 pp | +27.7% | Yes |
| Aug 2024 | $111.3bn | 0.269% | +0.021 pp | +43.3% | Yes |
| Jul 2024 | $101.4bn | 0.182% | +0.030 pp | +45.5% | No |
| Jun 2024 | $98.7bn | 0.185% | +0.029 pp | +46.3% | No |
| May 2024 | $92.1bn | 0.176% | +0.005 pp | +33.3% | No |
| Apr 2024 | $83.7bn | 0.242% | -0.012 pp | +11.1% | No |
| Mar 2024 | $90.4bn | 0.251% | -0.013 pp | +17.1% | No |
| Feb 2024 | $90.8bn | 0.260% | +0.009 pp | +27.0% | Yes |
| Jan 2024 | $88.6bn | 0.263% | +0.019 pp | +24.3% | Yes |
| Dec 2023 | $82.5bn | 0.246% | +0.001 pp | +21.7% | Yes |
| Nov 2023 | $77.4bn | 0.241% | +0.002 pp | +9.6% | Yes |
| Oct 2023 | $73.3bn | 0.249% | -0.001 pp | +4.2% | Yes |
| Sep 2023 | $77.3bn | 0.258% | +0.004 pp | +19.5% | Yes |
| Aug 2023 | $77.7bn | 0.247% | +0.052 pp | +42.2% | Yes |
| Jul 2023 | $69.7bn | 0.152% | -0.036 pp | +27.5% | No |
| Jun 2023 | $67.5bn | 0.156% | -0.060 pp | +21.6% | No |
| May 2023 | $69.1bn | 0.171% | -0.054 pp | +10.7% | No |
| Apr 2023 | $75.3bn | 0.254% | +0.031 pp | +21.6% | Yes |
| Mar 2023 | $77.2bn | 0.263% | +0.043 pp | +17.6% | 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.