Costco Wholesale Corp. reported better-than-expected earnings and sales for its third quarter, driven by increased memberships, sales growth, and expanded e-commerce activity. The company has strategically limited the impact of tariffs on its business, contributing to a 14% year-to-date rise in its stock price, which recently jumped 3% to $1,040 per share following the earnings announcement. Costco has also enhanced its customer offerings by extending gas station hours and opening new gas stations earlier this year, which has positively impacted its performance. Additionally, the retailer lowered prices on key staples such as eggs and butter in response to recent declines in commodity costs, further supporting its sales growth and member satisfaction.