Costco Stock (COST) Today: Earnings Beat, Membership Momentum, Tariff Lawsuit Headlines, and Fresh Wall Street Forecasts (Dec. 12, 2025)
Costco Wholesale Corporation (NASDAQ: COST) is back at the center of investor attention on December 12, 2025, after the retailer kicked off fiscal 2026 with a sales and earnings beat, accelerated membership-fee growth, and another quarter of strong comparable sales—even as the stock’s reaction remains measured and headlines swirl around a tariff-related lawsuit. Costco Investor Relations+2Reuters+2 What makes Costco stock particularly compelling (and complicated) right now is the push-pull between fundamentals that look elite—especially membership economics and digital growth—and a valuation that many strategists still view as premium-priced, leaving less room for upside surprises to translate into big near-term share