The surpassing of EPS estimates by 2.49% is a positive signal for investors, indicating better-than-expected profitability. However, the slight miss on sales forecasts could temper enthusiasm, suggesting potential challenges in revenue growth or market expectations not being fully met. The year-over-year sales increase of 5.75% is a strong point, showcasing continued growth. Overall, the mixed results may lead to a neutral short-term impact on Costco's stock price, as positive earnings are balanced by the slight sales miss.