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
0.558%
12M weight contribution
+0.056 pp
3M weight contribution
+0.222 pp
12M price return
+15.8%
Share of matched S&P 500 members
Monthly observations through Feb 2019
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 |
|---|---|---|---|---|---|
| Feb 2019 | $96.4bn | 0.558% | +0.056 pp | +15.8% | Yes |
| Jan 2019 | $94.5bn | 0.312% | -0.176 pp | +11.3% | No |
| Dec 2018 | $89.7bn | 0.321% | -0.167 pp | +5.6% | No |
| Nov 2018 | $101.3bn | 0.337% | -0.151 pp | +19.9% | No |
| Oct 2018 | $100.2bn | 0.340% | -0.148 pp | +18.3% | No |
| Sep 2018 | $103.0bn | 0.328% | -0.160 pp | +21.5% | No |
| Aug 2018 | $102.2bn | 0.330% | -0.158 pp | +20.6% | No |
| Jul 2018 | $95.9bn | 0.559% | +0.071 pp | +12.9% | Yes |
| Jun 2018 | $91.6bn | 0.556% | +0.068 pp | +7.8% | Yes |
| May 2018 | $87.0bn | 0.528% | +0.040 pp | +2.3% | Yes |
| Apr 2018 | $86.5bn | 0.532% | +0.044 pp | +1.4% | Yes |
| Mar 2018 | $82.7bn | 0.507% | +0.019 pp | -3.0% | Yes |
| Feb 2018 | $83.8bn | 0.502% | +0.014 pp | -1.8% | Yes |
| Jan 2018 | $85.6bn | 0.488% | +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.