Observatory · observe first
Ametek
AME · United States · Electrical Components & Equipment · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.112%
12M weight contribution
+0.012 pp
3M weight contribution
+0.056 pp
12M price return
+27.2%
Share of matched S&P 500 members
Monthly observations through Apr 2019
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 |
|---|---|---|---|---|---|
| Apr 2019 | $20.0bn | 0.112% | +0.012 pp | +27.2% | Yes |
| Mar 2019 | $18.8bn | 0.108% | +0.000 pp | +10.0% | Yes |
| Feb 2019 | $18.1bn | 0.105% | -0.000 pp | +5.8% | Yes |
| Jan 2019 | $16.9bn | 0.056% | -0.045 pp | -3.8% | No |
| Dec 2018 | $15.7bn | 0.056% | -0.044 pp | -10.6% | No |
| Nov 2018 | $17.0bn | 0.057% | -0.044 pp | -3.2% | No |
| Oct 2018 | $15.6bn | 0.053% | -0.048 pp | -11.6% | No |
| Sep 2018 | $18.3bn | 0.058% | -0.042 pp | +4.3% | No |
| Aug 2018 | $17.8bn | 0.058% | -0.043 pp | +1.2% | No |
| Jul 2018 | $18.0bn | 0.105% | +0.005 pp | +2.3% | Yes |
| Jun 2018 | $16.7bn | 0.101% | +0.001 pp | -5.1% | No |
| May 2018 | $16.9bn | 0.103% | +0.002 pp | -4.1% | No |
| Apr 2018 | $16.1bn | 0.099% | -0.001 pp | -8.4% | No |
| Mar 2018 | $17.6bn | 0.108% | +0.007 pp | -0.3% | Yes |
| Feb 2018 | $17.5bn | 0.105% | +0.004 pp | -0.7% | Yes |
| Jan 2018 | $17.6bn | 0.101% | +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.