Observatory · observe first
Amgen
AMGN · United States · Biotechnology · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.443%
12M weight contribution
-0.327 pp
3M weight contribution
+0.016 pp
12M price return
+7.7%
Share of matched S&P 500 members
Monthly observations through Dec 2018
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 2018 | $124.0bn | 0.443% | -0.327 pp | +7.7% | No |
| Nov 2018 | $132.7bn | 0.441% | -0.329 pp | +15.2% | No |
| Oct 2018 | $122.8bn | 0.416% | -0.354 pp | +5.9% | No |
| Sep 2018 | $134.2bn | 0.427% | -0.343 pp | +13.9% | No |
| Aug 2018 | $129.3bn | 0.417% | -0.353 pp | +9.8% | No |
| Jul 2018 | $127.2bn | 0.742% | -0.028 pp | +7.3% | No |
| Jun 2018 | $122.1bn | 0.741% | -0.029 pp | +0.7% | No |
| May 2018 | $118.9bn | 0.721% | -0.049 pp | -2.0% | No |
| Apr 2018 | $115.5bn | 0.709% | -0.061 pp | -5.5% | No |
| Mar 2018 | $122.8bn | 0.754% | -0.017 pp | -7.7% | No |
| Feb 2018 | $132.4bn | 0.794% | +0.023 pp | -0.5% | Yes |
| Jan 2018 | $135.1bn | 0.770% | +0.000 pp | +0.0% | 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.