Costco (COST) Q1 2026 Earnings Beat: E‑Commerce Surges 20%, Membership Fees Jump 14% as Tariff Lawsuit Looms
Costco Wholesale has delivered one of its most closely watched earnings reports in years. On December 11, 2025, the warehouse-club giant reported fiscal Q1 2026 results that beat Wall Street expectations, powered by double‑digit online growth and another big jump in membership income — even as investors weigh tariff litigation and a rich stock valuation. StreetInsider.com+1