Costco, the renowned value wholesale store, has demonstrated its financial prowess by delivering a robust third-quarter earnings report that has outperformed the market’s expectations. Costco’s impressive performance in the stock market, bolstered by its rapid expansion into non-food-related items, is a clear testament to its strategic diversification, a move that is poised to resonate with the broader consumer base. Costco tops Wall St expectationsNet sales for the quarter increased “9.1 percent, to $57.39 billion, from $52.60 billion last year. Net sales for the first 36 weeks increased 7.0 …