Observatory · observe first

Costco

COST · United States · Consumer Staples Merchandise Retail · matched S&P 500 member. Follow its market-weight contribution.

Historical time machine
Historical observation
20182026
Universe weight
0.917%
12M weight contribution
+0.141 pp
3M weight contribution
+0.085 pp
12M price return
+40.1%

Share of matched S&P 500 members

Monthly observations through Jan 2024

0.00.50.92018201920202021202220232024

Company price index

A separate dimension from market allocation

1082453832018201920202021202220232024

Historical observations

Most recent 24 observations at or before the selected month

MonthMarket capUniverse weight12M weight change12M returnAbove 6M weight average
Jan 2024$308.3bn0.917%+0.141 pp+40.1%Yes
Dec 2023$292.9bn0.873%+0.142 pp+49.0%Yes
Nov 2023$262.4bn0.818%+0.008 pp+10.8%Yes
Oct 2023$244.6bn0.832%+0.044 pp+10.8%Yes
Sep 2023$250.4bn0.836%+0.014 pp+20.5%Yes
Aug 2023$243.4bn0.776%-0.052 pp+6.0%Yes
Jul 2023$248.5bn0.542%-0.282 pp+4.2%No
Jun 2023$238.6bn0.552%-0.274 pp+13.2%No
May 2023$226.9bn0.560%-0.184 pp+10.5%No
Apr 2023$223.2bn0.754%-0.098 pp-4.9%No
Mar 2023$220.4bn0.752%-0.107 pp-13.1%No
Feb 2023$214.8bn0.755%-0.043 pp-6.1%No
Jan 2023$226.8bn0.776%+0.023 pp+1.9%No
Dec 2022$202.6bn0.731%-0.075 pp-19.0%No
Nov 2022$238.7bn0.810%+0.005 pp+0.6%No
Oct 2022$222.0bn0.788%+0.062 pp+2.7%No
Sep 2022$209.2bn0.822%+0.125 pp+5.8%Yes
Aug 2022$231.3bn0.828%+0.154 pp+15.4%Yes
Jul 2022$239.8bn0.824%+0.173 pp+26.8%Yes
Jun 2022$212.3bn0.826%+0.208 pp+21.9%Yes
May 2022$206.6bn0.744%+0.144 pp+24.1%No
Apr 2022$235.7bn0.852%+0.255 pp+43.9%Yes
Mar 2022$255.2bn0.859%+0.554 pp+64.5%Yes
Feb 2022$230.3bn0.799%+0.506 pp+58.0%Yes

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.