$970.40+$9.05 (+0.94%)as of Aug 19, 9:30 AM ET
COST weekly returns
Costco Wholesale Corporation has averaged 0.30% per week, positive in 54% of weeks. Week-by-week returns for Costco Wholesale Corporation (COST) below, through August 19, 2026 — the table lists the most recent weeks; the bar chart plots the last 2 years.
Average week
+0.3%
2093 weeks
Best week
+24.1%
Nov 6, 1992
Worst week
-31.4%
May 26, 2000
Positive weeks
54%
of all weeks
Costco Wholesale Corporation weekly returns#
| Week ending | Path | Total return |
|---|---|---|
| Aug 19, 2026 | -0.1% | |
| Aug 14, 2026 | +1.4% | |
| Aug 7, 2026 | -0.4% | |
| Jul 31, 2026 | +1.8% | |
| Jul 24, 2026 | -0.5% | |
| Jul 17, 2026 | +2.5% | |
| Jul 10, 2026 | -3.7% | |
| Jul 2, 2026 | -0.1% | |
| Jun 26, 2026 | +0.1% | |
| Jun 18, 2026 | -3.1% | |
| Jun 12, 2026 | +1.1% | |
| Jun 5, 2026 | +1.6% | |
| May 29, 2026 | -7.0% | |
| May 22, 2026 | -2.0% | |
| May 15, 2026 | +4.0% |
Weekly total return (since Aug 30, 2024)
-5%+0%+5%
20252026
Methodology#
Weekly returns are total returns (dividends reinvested), computed from COST's split- and dividend-adjusted weekly (ISO week) closes. The table shows the most recent 260 weeks and the bar chart the most recent 104. See the year-by-year returns for the annual view. Past performance does not predict future returns; not investment advice.
See also: S&P 500 · Nasdaq-100 · Dow Jones · Russell 2000 · US Bond Market · Gold · Silver · Bitcoin · Ethereum
FAQ#
- What is Costco Wholesale Corporation's average weekly return?
- Costco Wholesale Corporation (COST) has averaged about 0.30% per week, positive in roughly 54% of weeks. The best week was Nov 6, 1992 (+24.1%) and the worst was May 26, 2000 (-31.4%).