Lam Research

LRCX · United States · Semiconductor Materials & Equipment · matched S&P 500 member. Follow its market-weight contribution.

Historical time machine

Historical observation

20182026

Universe weight

0.030%

12M weight contribution

+0.008 pp

3M weight contribution

+0.009 pp

12M price return

+62.7%

Share of matched S&P 500 members

Monthly observations through Aug 2023

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
Aug 2023	$9.3bn	0.030%	+0.008 pp	+62.7%	Yes
Jul 2023	$9.7bn	0.021%	-0.003 pp	+45.6%	No
Jun 2023	$8.6bn	0.020%	-0.003 pp	+53.0%	No
May 2023	$8.3bn	0.020%	-0.006 pp	+20.3%	No
Apr 2023	$7.0bn	0.024%	+0.000 pp	+14.2%	Yes
Mar 2023	$7.2bn	0.024%	-0.001 pp	+0.1%	Yes
Feb 2023	$6.6bn	0.023%	-0.004 pp	-12.2%	Yes
Jan 2023	$6.7bn	0.023%	-0.005 pp	-14.0%	Yes
Dec 2022	$5.7bn	0.021%	-0.012 pp	-40.7%	No
Nov 2022	$6.4bn	0.022%	-0.010 pp	-29.6%	Yes
Oct 2022	$5.5bn	0.020%	-0.007 pp	-27.3%	No
Sep 2022	$5.0bn	0.020%	-0.009 pp	-34.9%	No
Aug 2022	$6.0bn	0.021%	-0.007 pp	-26.8%	No
Jul 2022	$6.9bn	0.024%	-0.007 pp	-20.6%	No
Jun 2022	$5.9bn	0.023%	-0.010 pp	-33.8%	No
May 2022	$7.2bn	0.026%	-0.007 pp	-19.2%	No
Apr 2022	$6.5bn	0.023%	-0.009 pp	-24.2%	No
Mar 2022	$7.5bn	0.025%	+0.009 pp	-8.8%	No
Feb 2022	$7.8bn	0.027%	+0.011 pp	-0.1%	No
Jan 2022	$8.3bn	0.028%	+0.011 pp	+23.0%	No
Dec 2021	$10.1bn	0.032%	+0.005 pp	+53.7%	Yes
Nov 2021	$9.6bn	0.032%	+0.005 pp	+51.6%	Yes
Oct 2021	$7.9bn	0.027%	+0.003 pp	+66.3%	No
Sep 2021	$8.1bn	0.028%	+0.028 pp	+73.2%	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.