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

0.116%

12M weight contribution

+0.002 pp

3M weight contribution

+0.116 pp

12M price return

+20.6%

Share of matched S&P 500 members

Monthly observations through Nov 2020

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
Nov 2020	$27.3bn	0.116%	+0.002 pp	+20.6%	Yes
Oct 2020	$22.6bn	0.107%	-0.002 pp	+8.0%	Yes
Sep 2020	$22.8bn	0.000%	-0.111 pp	+9.1%	No
Aug 2020	$23.1bn	0.000%	-0.107 pp	+18.0%	No
Jul 2020	$21.4bn	0.000%	-0.109 pp	+4.8%	No
Jun 2020	$20.5bn	0.000%	-0.111 pp	-0.9%	No
May 2020	$21.0bn	0.000%	-0.109 pp	+12.8%	No
Apr 2020	$19.2bn	0.108%	-0.004 pp	-4.2%	Yes
Mar 2020	$16.5bn	0.000%	-0.108 pp	-12.6%	No
Feb 2020	$19.7bn	0.000%	-0.105 pp	+8.8%	No
Jan 2020	$22.2bn	0.110%	+0.054 pp	+34.1%	No
Dec 2019	$22.8bn	0.112%	+0.056 pp	+48.3%	Yes
Nov 2019	$22.6bn	0.114%	+0.057 pp	+35.8%	Yes
Oct 2019	$20.9bn	0.109%	+0.056 pp	+37.6%	No
Sep 2019	$21.0bn	0.111%	+0.053 pp	+16.9%	Yes
Aug 2019	$19.6bn	0.107%	+0.049 pp	+12.4%	No
Jul 2019	$20.4bn	0.109%	+0.004 pp	+16.0%	No
Jun 2019	$20.7bn	0.112%	+0.010 pp	+26.8%	Yes
May 2019	$18.7bn	0.109%	+0.006 pp	+13.0%	Yes
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

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.