Costco Wholesale Corp. (COST) shares reached a new all-time high of $1,096.50 on May 20, 2026. The stock has increased more than 25% year-to-date. UBS raised its price target for the retailer to $1,275 from $1,205 while maintaining a Buy rating.
Costco will release its fiscal third-quarter earnings report on May 28. Analysts note the stock currently trades at a premium valuation. Investors identify membership renewal rates as a key metric to sustain the current market momentum.