Costco has crushed the market over five years, but it’s gone nowhere over the past 12 months.
The business is performing well, with strong comps and e-commerce growth.
Valuation compression is the risk investors have to watch.
Shares of Costco Wholesale (NASDAQ: COST) have been terrific for long-term investors. Over the past five years, the stock is up 110%, beating the S&P 500's 73%. But over the past year, Costco has been roughly flat, while the index is up 19%; valuation has been a factor in that relative performance.
Image source: Getty Images.
Missed Nvidia in 2009? This Rare Signal Is Flashing Again. In 2009, a "Double Down" signal flashed for a little-known chipmaker called Nvidia. For the first time in years, that same "Total Conviction" signal is flashing for a company 1/100th the size of Nvidia. Continue »
The business is doing great. Third-quarter sales rose 11.6% year over year, and comparable-store sales were up a healthy 6.6% once you strip out gas prices and currency swings in international markets.
Costco is also still firing on multiple cylinders. E-commerce sales climbed 21% year over year, the company set new fuel-volume records, and it boosted member value by cutting prices on staples like eggs and beef.
Valuation is the main factor holding the stock back. Costco traded at a stretched price-to-earnings multiple of 60 about a year ago. Even after that premium compressed, the stock still trades for about 47 times trailing earnings -- above its 10-year average of roughly 40.
At this price, Costco isn't an obvious buy. Investors may be better off waiting for the stock to move closer to its historical valuation, if not lower. Buying now risks owning a great business that still gets rerated to a lower P/E and continues to lag the market.
Before you buy stock in Costco Wholesale, consider this:
The Motley Fool Stock Advisor analyst team just identified what they believe are the 10 best stocks for investors to buy now… and Costco Wholesale wasn’t one of them. The 10 stocks that made the cut could produce monster returns in the coming years.
Consider when Netflix made this list on December 17, 2004... if you invested $1,000 at the time of our recommendation, you’d have $440,710!* Or when Nvidia made this list on April 15, 2005... if you invested $1,000 at the time of our recommendation, you’d have $1,335,252!*
Now, it’s worth noting Stock Advisor’s total average return is 978% — a market-crushing outperformance compared to 213% for the S&P 500. Don't miss the latest top 10 list, available with Stock Advisor, and join an investing community built by individual investors for individual investors.
See the 10 stocks »
*Stock Advisor returns as of August 31, 2026.
John Ballard has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Costco Wholesale. The Motley Fool has a disclosure policy.