Here's Why I Added Costco to My Portfolio in 2025

Costco Wholesale (COST -0.17%) has been a dominant player in the retail space for decades. For its shareholders, the results have been even more impressive. Over the past five years, Costco's stock performance has outpaced the S&P 500 by nearly 150 percentage points. Looking back 10 years, the stock has more than tripled the market's return.As is the case with most stocks that post market-beating returns, Costco stock trades for a premium. At this writing, shares trade for 62 times trailing earnings, only s ...