Arista Networks

ANET · United States · Communications Equipment · matched S&P 500 member. Follow its market-weight contribution.

Historical time machine

Historical observation

20182026

Universe weight

0.277%

12M weight contribution

+0.226 pp

3M weight contribution

+0.045 pp

12M price return

+16.8%

Share of matched S&P 500 members

Monthly observations through Jun 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
Jun 2025	$128.5bn	0.277%	+0.226 pp	+16.8%	Yes
May 2025	$108.8bn	0.247%	+0.202 pp	+16.4%	Yes
Apr 2025	$103.8bn	0.249%	+0.191 pp	+28.3%	Yes
Mar 2025	$97.7bn	0.232%	+0.169 pp	+6.9%	Yes
Feb 2025	$117.3bn	0.262%	+0.200 pp	+34.1%	Yes
Jan 2025	$36.3bn	0.081%	+0.021 pp	+78.2%	Yes
Dec 2024	$34.8bn	0.079%	+0.024 pp	+87.7%	Yes
Nov 2024	$32.0bn	0.071%	+0.017 pp	+84.7%	Yes
Oct 2024	$30.4bn	0.071%	+0.018 pp	+92.9%	Yes
Sep 2024	$30.1bn	0.070%	+0.023 pp	+108.7%	Yes
Aug 2024	$27.8bn	0.067%	+0.019 pp	+81.0%	Yes
Jul 2024	$27.2bn	0.049%	+0.023 pp	+123.5%	No
Jun 2024	$27.5bn	0.051%	+0.023 pp	+116.3%	No
May 2024	$23.3bn	0.045%	+0.013 pp	+78.9%	No
Apr 2024	$20.1bn	0.058%	+0.017 pp	+60.2%	No
Mar 2024	$22.7bn	0.063%	+0.019 pp	+72.8%	Yes
Feb 2024	$21.7bn	0.062%	+0.025 pp	+100.1%	Yes
Jan 2024	$20.1bn	0.060%	+0.027 pp	+105.3%	Yes
Dec 2023	$18.3bn	0.055%	+0.021 pp	+94.1%	Yes
Nov 2023	$17.1bn	0.053%	+0.017 pp	+57.7%	Yes
Oct 2023	$15.6bn	0.053%	+0.020 pp	+65.8%	Yes
Sep 2023	$14.2bn	0.048%	+0.014 pp	+62.9%	Yes
Aug 2023	$15.1bn	0.048%	+0.016 pp	+62.9%	Yes
Jul 2023	$12.0bn	0.026%	-0.005 pp	+33.0%	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.