What if you invested in Costco in 2023?
COST · Consumer · Data through 2026-07-01
If you invested $1,000 in Costco in 2023
The same $1,000 in the S&P 500 would be worth $1,922(+92.2%)
The S&P 500 returned $1,922 on the same $1,000. Costco beat the market by $27.
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Compare Costco to another stock
See how Costco stacks up since 2023, head to head.
What if Costco keeps this up?
Project forward at Costco's 20% historical growth rate. See 5-30 year scenarios.
Growth of $1,000
Costco vs. S&P 500 vs. US Dollar, 2023 to present
Year-by-Year Returns
$1,000 invested in Costco starting January 2023
| Year | Price | Value | Annual |
|---|---|---|---|
| 2023 | $488.42 | $1,000 | - |
| 2024 | $684.24 | $1,401 | +40.1% |
| 2025 | $970.51 | $1,987 | +41.8% |
| 2026 | $937.40 | $1,919 | -3.4% |
What this return means
Costco (COST) turned $1,000 into $1,949 since 2023. The total return is +94.9% over 3.7 years, as of 2026-07-01.
In compound terms that is roughly 20% a year, well above what a broad index has historically returned. The same $1,000 in an S&P 500 index fund over the same span would be about $1,922, so Costco beat the index by roughly $27. The index compounded at about 19.5% a year over that period.
Getting here meant sitting through real volatility. The best single year was 2025 at +41.8%, and the worst was 2024 at +40.1%. These figures use split-adjusted closing prices and exclude dividends, taxes, trading fees, and inflation, so a real after-tax result would differ.
Treat this as history rather than advice. Past performance does not guarantee future results.
What if you invested $100 a month instead?
Most people do not drop a lump sum in on day one. They add a fixed amount every month. Putting $100 into Costco at the close of every month from January 2023 through July 2026 means 43 buys and $4,300 contributed over about 3.6 years.
$100/month, dollar-cost averaged
$5,507
+28.1% on $4,300 in
Same $4,300, all in at the start
$8,380
+94.9% on $4,300 in
Going all in at the start beat spreading the buys out by $2,874. That is the usual result when a stock trends up: each monthly buy pays a higher price than the last, so the average cost climbs. Averaging in also meant an average buy price of $743.28 per share across the whole stretch, so the monthly buyer never had to time a single low. Neither number counts dividends, taxes, or trading costs.
Illustrative fixed $100/month example, not a recommendation. Figures are computed from COST split-adjusted monthly closes through July 2026. Past performance does not guarantee future results.
Costco at different times
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For informational and educational purposes only. Not financial advice. Past performance does not guarantee future results. All calculations are based on split-adjusted closing prices from Yahoo Finance and do not account for dividends, taxes, or trading fees. See our methodology and full disclaimer.