Costco (COST) Total Return Calculator
$10,000 since Dec 2007, with and without reinvesting · data through Oct 2026
$10,000 invested in Costco (COST) ten years ago, at the end of Oct 2016, was worth $81,158 at the end of Oct 2026 with every dividend reinvested: 23.3% a year, against $41,633 in the S&P 500. Since Dec 2007, $10,000 became $210,716 reinvested (17.6% a year), or $158,002 taking the dividends as cash, $12,893 of it paid out along the way.
COST became
$210,716
S&P 500: $72,756
Return a year
17.6%
S&P 500: 11.1%
Payouts reinvested
$16,781
bought more shares
Worst drop
-40.1%
S&P 500: -48.2%
$10,000, Dec 2007 to Oct 2026
Payouts reinvested · S&P 500 reinvested
| Year | COST total return | Paid out | S&P 500 |
|---|---|---|---|
| 2026 (part) | +18.1% | $1,181 | +11.7% |
| 2025 | −5.4% | $1,057 | +17.7% |
| 2024 | +39.6% | $971 | +24.9% |
| 2023 | +49.0% | $3,808 | +26.2% |
| 2022 | −19.0% | $695 | −18.2% |
| 2021 | +51.8% | $601 | +28.7% |
| 2020 | +32.7% | $2,393 | +18.3% |
| 2019 | +45.7% | $480 | +31.2% |
| 2018 | +10.6% | $416 | −4.6% |
| 2017 | +22.4% | $1,664 | +21.7% |
| 2016 | +0.3% | $309 | +12.0% |
| 2015 | +18.9% | $1,084 | +1.2% |
| 2014 | +20.5% | $235 | +13.5% |
| 2013 | +21.8% | $197 | +32.3% |
| 2012 | +28.4% | $1,234 | +16.0% |
| 2011 | +16.7% | $141 | +1.9% |
| 2010 | +23.7% | $120 | +15.1% |
| 2009 | +14.3% | $104 | +26.4% |
| 2008 | −24.0% | $92 | −36.8% |
"Paid out" is what your holding received that year. Month-end prices; no costs or taxes.
Key facts: COST total return
Data as of · Source: SmarterDividends data
- $10,000 invested in Costco (COST) at the end of Dec 2007, with dividends reinvested, was worth $210,716 at the end of Oct 2026: 17.6% a year, against $72,756 (11.1% a year) in the S&P 500.
- Over the 10 years to Oct 2026, COST turned $10,000 into $81,158 with dividends reinvested, 23.3% a year.
- Over the 5 years to Oct 2026, COST returned 16.8% a year with dividends reinvested (S&P 500: 12.0%).
- Taking COST's dividends as cash instead of reinvesting them, the same $10,000 ended at $158,002, including $12,893 of cash received; reinvesting added $52,714.
- COST's best calendar year in that time was 2021 (51.8%) and its worst 2008 (-24.0%), with dividends reinvested.
Cite this page
SmarterDividends, "Costco (COST) Total Return Calculator," updated Nov 5, 2026, https://smarterdividends.com/stocks/COST/total-return
COST total return questions
If I invested $10,000 in COST 10 years ago, how much would I have?
About $81,158 at the end of Oct 2026, with every dividend reinvested: 23.3% a year. Taking them as cash, you'd have shares worth $68,457 or so plus the cash you received. The same $10,000 in the S&P 500 became $41,633.
What is COST's total return since Dec 2007?
2007% in total, or 17.6% a year, through Oct 2026 with dividends reinvested. The share price alone rose 1351%.
How much of COST's return came from dividends?
About 13% of its yearly return since Dec 2007. Reinvesting them, rather than taking cash, left you $52,714 better off on a $10,000 start.
What was COST's worst year?
2008, at -24.0% with dividends reinvested (S&P 500: -36.8%). Its deepest fall from a peak, on month-end values, was -40.1%.
How is total return calculated here?
From month-end prices: the adjusted price counts every dividend reinvested in the month it was paid; the plain price doesn't. The S&P 500 is SPY with its dividends reinvested. No trading costs or taxes.