Is This 1 Thing the Biggest Risk for Costco Stock?

Costco (COST -0.07%) needs no introduction. The dominant warehouse club operator is a consumer favorite. And it has undoubtedly been a big winner for shareholders.This top retail stock has soared 237% in the last five years, a gain that trounces the S&P 500 and the Nasdaq Composite index by a wide margin. Even in 2024, shares have climbed 8% so far (as of Feb. 13) as the momentum continues.There are certainly numerous reasons to appreciate this company. But there's also a key risk that investors need to kno ...