Universe›Consumer Staples›Consumer Staples Merchandise Retail›Consumer Staples Merchandise Retail›Costco
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
0.725%
12M weight contribution
-0.022 pp
3M weight contribution
+0.074 pp
12M price return
+42.1%
Share of matched S&P 500 members
Monthly observations through Oct 2021
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 |
|---|---|---|---|---|---|
| Oct 2021 | $217.2bn | 0.725% | -0.022 pp | +42.1% | Yes |
| Sep 2021 | $198.6bn | 0.697% | +0.697 pp | +30.9% | Yes |
| Aug 2021 | $201.4bn | 0.673% | +0.673 pp | +35.5% | Yes |
| Jul 2021 | $190.0bn | 0.651% | +0.651 pp | +36.5% | Yes |
| Jun 2021 | $174.9bn | 0.618% | +0.617 pp | +35.0% | Yes |
| May 2021 | $167.4bn | 0.600% | +0.599 pp | +26.9% | Yes |
| Apr 2021 | $164.7bn | 0.597% | -0.152 pp | +27.1% | Yes |
| Mar 2021 | $156.0bn | 0.305% | +0.304 pp | +27.9% | No |
| Feb 2021 | $146.6bn | 0.293% | +0.293 pp | +21.8% | No |
| Jan 2021 | $156.1bn | 0.374% | -0.292 pp | +19.4% | No |
| Dec 2020 | $166.9bn | 0.675% | +0.038 pp | +32.7% | Yes |
| Nov 2020 | $172.9bn | 0.734% | +0.070 pp | +31.8% | Yes |
| Oct 2020 | $157.8bn | 0.747% | +0.066 pp | +21.4% | Yes |
| Sep 2020 | $156.7bn | 0.001% | -0.672 pp | +24.3% | No |
| Aug 2020 | $153.5bn | 0.001% | -0.704 pp | +19.0% | No |
| Jul 2020 | $143.7bn | 0.001% | -0.644 pp | +19.4% | No |
| Jun 2020 | $133.9bn | 0.001% | -0.626 pp | +15.7% | No |
| May 2020 | $136.2bn | 0.001% | -0.613 pp | +29.9% | No |
| Apr 2020 | $133.8bn | 0.749% | +0.147 pp | +24.8% | Yes |
| Mar 2020 | $125.9bn | 0.001% | -0.611 pp | +18.8% | No |
| Feb 2020 | $124.2bn | 0.001% | -0.558 pp | +29.7% | No |
| Jan 2020 | $135.0bn | 0.666% | +0.354 pp | +43.7% | No |
| Dec 2019 | $129.8bn | 0.637% | +0.316 pp | +45.7% | No |
| Nov 2019 | $131.8bn | 0.664% | +0.327 pp | +30.9% | 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.