Marsh McLennan

MRSH · United States · Insurance Brokers · matched S&P 500 member. Follow its market-weight contribution.

Historical time machine

Historical observation

20182026

Universe weight

0.261%

12M weight contribution

+0.127 pp

3M weight contribution

-0.020 pp

12M price return

+41.8%

Share of matched S&P 500 members

Monthly observations through Jan 2022

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
Jan 2022	$77.6bn	0.261%	+0.127 pp	+41.8%	No
Dec 2021	$87.8bn	0.281%	+0.041 pp	+50.8%	Yes
Nov 2021	$82.8bn	0.280%	+0.033 pp	+45.3%	Yes
Oct 2021	$84.2bn	0.281%	+0.033 pp	+63.7%	Yes
Sep 2021	$76.7bn	0.269%	+0.269 pp	+34.1%	Yes
Aug 2021	$79.6bn	0.266%	+0.266 pp	+39.0%	Yes
Jul 2021	$74.6bn	0.256%	+0.255 pp	+28.3%	Yes
Jun 2021	$71.5bn	0.253%	+0.252 pp	+33.2%	Yes
May 2021	$70.4bn	0.252%	+0.252 pp	+32.7%	Yes
Apr 2021	$69.0bn	0.250%	-0.024 pp	+41.7%	Yes
Mar 2021	$61.9bn	0.121%	+0.121 pp	+43.4%	No
Feb 2021	$58.6bn	0.117%	+0.117 pp	+12.2%	No
Jan 2021	$55.7bn	0.134%	-0.145 pp	+0.0%	No
Dec 2020	$59.3bn	0.240%	-0.036 pp	+6.9%	Yes
Nov 2020	$58.1bn	0.247%	-0.028 pp	+7.9%	Yes
Oct 2020	$52.5bn	0.248%	-0.024 pp	+1.6%	Yes
Sep 2020	$58.1bn	0.000%	-0.269 pp	+16.7%	No
Aug 2020	$58.2bn	0.000%	-0.275 pp	+17.1%	No
Jul 2020	$59.1bn	0.000%	-0.266 pp	+20.2%	No
Jun 2020	$54.3bn	0.000%	-0.272 pp	+9.6%	No
May 2020	$53.6bn	0.000%	-0.282 pp	+12.9%	No
Apr 2020	$49.0bn	0.274%	+0.008 pp	+5.2%	Yes
Mar 2020	$43.6bn	0.000%	-0.272 pp	-6.3%	No
Feb 2020	$52.7bn	0.000%	-0.272 pp	+14.4%	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.