Is Costco Stock Finally Cheap Enough to Buy?

Costco stock has declined 13% this year despite strong operational performance, with Q3 2026 sales up 11.6% and May results showing 14.5% revenue growth. Trading at a P/E ratio of 49 (down from 60), the stock remains expensive by historical standards but may present a buying opportunity for long-term investors willing to weather near-term volatility.