Costco Stock (COST) in December 2025: Tariff Fight, Strong Sales and a High‑Valuation 2026 Buy Case
Costco stock sits at an odd crossroads as of December 4, 2025. Operationally, the warehouse giant is firing on almost all cylinders: sales are growing, e‑commerce is accelerating, and membership income keeps hitting records. At the same time, the company is suing the Trump administration over tariffs, analysts are debating whether its premium valuation still has room to run, and…