Costco (NASDAQ: COST ) will report earnings this week. After a year of underperformance , investors wonder whether Costco will deliver alpha or not. While I argue that investing in Costco doesn't hinge on one year's alpha, I think, in fact, that the stock isI’m a long-term investor focused on U.S. and European equities, with a dual emphasis on undervalued growth stocks and high-quality dividend growers. Through years of experience, I’ve learned that sustained profitability—evident in strong margins, stable ...