Observatory · observe first

S&P Global

SPGI · United States · Financial Exchanges & Data · matched S&P 500 member. Follow its market-weight contribution.

Historical time machine
Historical observation
20182026
Universe weight
0.278%
12M weight contribution
+0.029 pp
3M weight contribution
+0.003 pp
12M price return
+11.3%

Share of matched S&P 500 members

Monthly observations through Jul 2018

0.30.30.32018

Company price index

A separate dimension from market allocation

1001071132018

Historical observations

Most recent 24 observations at or before the selected month

MonthMarket capUniverse weight12M weight change12M returnAbove 6M weight average
Jul 2018$47.7bn0.278%+0.029 pp+11.3%No
Jun 2018$48.5bn0.294%+0.045 pp+13.2%Yes
May 2018$47.0bn0.285%+0.036 pp+9.6%Yes
Apr 2018$44.8bn0.276%+0.026 pp+4.4%Yes
Mar 2018$45.9bn0.282%+0.032 pp+5.8%Yes
Feb 2018$46.1bn0.276%+0.027 pp+6.2%Yes
Jan 2018$43.7bn0.249%+0.000 pp+0.0%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.