Amphenol

APH · United States · Electronic Components · matched S&P 500 member. Follow its market-weight contribution.

Historical time machine

Historical observation

20182026

Universe weight

0.094%

12M weight contribution

+0.046 pp

3M weight contribution

-0.001 pp

12M price return

+14.7%

Share of matched S&P 500 members

Monthly observations through Mar 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
Mar 2025	$39.7bn	0.094%	+0.046 pp	+14.7%	No
Feb 2025	$40.3bn	0.090%	+0.043 pp	+23.0%	No
Jan 2025	$42.7bn	0.095%	+0.050 pp	+41.2%	No
Dec 2024	$41.9bn	0.095%	+0.051 pp	+41.3%	Yes
Nov 2024	$43.8bn	0.097%	+0.054 pp	+61.0%	Yes
Oct 2024	$40.4bn	0.095%	+0.054 pp	+67.8%	Yes
Sep 2024	$39.2bn	0.091%	+0.050 pp	+56.5%	Yes
Aug 2024	$40.6bn	0.098%	+0.056 pp	+53.9%	Yes
Jul 2024	$38.7bn	0.069%	+0.041 pp	+46.7%	Yes
Jun 2024	$20.2bn	0.038%	+0.009 pp	+59.9%	No
May 2024	$19.9bn	0.038%	+0.010 pp	+77.1%	No
Apr 2024	$18.1bn	0.053%	+0.015 pp	+61.5%	Yes
Mar 2024	$17.3bn	0.048%	+0.007 pp	+42.5%	Yes
Feb 2024	$16.4bn	0.047%	+0.006 pp	+42.3%	Yes
Jan 2024	$15.1bn	0.045%	+0.004 pp	+28.0%	Yes
Dec 2023	$14.8bn	0.044%	+0.003 pp	+31.5%	Yes
Nov 2023	$13.6bn	0.042%	+0.002 pp	+14.3%	Yes
Oct 2023	$12.0bn	0.041%	+0.001 pp	+7.3%	Yes
Sep 2023	$12.5bn	0.042%	+0.003 pp	+26.8%	Yes
Aug 2023	$13.2bn	0.042%	+0.003 pp	+21.5%	Yes
Jul 2023	$13.2bn	0.029%	-0.011 pp	+15.7%	No
Jun 2023	$12.6bn	0.029%	-0.008 pp	+33.4%	No
May 2023	$11.2bn	0.028%	-0.010 pp	+7.7%	No
Apr 2023	$11.2bn	0.038%	-0.001 pp	+6.8%	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.