Here's a look at two retail giants whose stocks have lagged the market in 2025.Costco Wholesale (COST 1.56%) and Target (TGT -0.74%) are two of the most recognizable names in American retail. While both have been longtime winners for shareholders, their stocks have lost steam in recent months.However, when established leaders hit a rough patch, it can create a timely opportunity to invest at a more reasonable price.Let's take a closer look at the valuation, shareholder returns, and recent financial performa ...