Costco Wholesale Corporation trailing returns
Costco Wholesale Corporation's 10-year return is +21.7% a year (CAGR) (+614.6% cumulative). How Costco Wholesale Corporation (COST) has performed over the last day, week, month and year, over 5, 10 and 20 years, and since inception, through October 2, 2026 — cumulative and annualized, with dividends on or off.
Trailing returns by period#
To 2026-10-02. Annualized (CAGR) for windows of a year or more.
| Period | Path | Annualized | Cumulative |
|---|---|---|---|
| 1 day | — | +0.6% | |
| 5 days | — | -0.2% | |
| 1 month | — | -0.8% | |
| YTD | — | +7.2% | |
| 1 year | +1.0% | +1.0% | |
| 5 years | +16.7% | +116.7% | |
| 10 years | +21.7% | +614.6% | |
| 20 years | +17.2% | +2292.6% | |
| Since inception (1986) | +12.3% | +10503.6% |
Growth of COST
Actual index level (solid); dashed lines are each window's constant-rate path from start to today.
Methodology#
Trailing returns measure from the closest close about N years before the latest close (2026-10-02). Cumulative return is the total change over the window; annualized return is the compound annual growth rate (CAGR), shown for windows of a year or more. Total return reinvests dividends (from COST's split- and dividend-adjusted closes); price return excludes them. See the year-by-year returns for the calendar breakdown. Past performance does not predict future returns; not investment advice.
FAQ#
- What is Costco Wholesale Corporation's 10-year return?
- Over the last 10 years, Costco Wholesale Corporation (COST) returned about +21.7% a year annualized (+614.6% cumulative total return).
- What is Costco Wholesale Corporation's 20-year annualized return?
- Over the last 20 years, Costco Wholesale Corporation (COST) compounded at about +17.2% a year (+2292.6% cumulative).
- What is Costco Wholesale Corporation's return since inception?
- Since 1986, Costco Wholesale Corporation (COST) has compounded at about +12.3% a year — +10503.6% in total.