As gold hits $4,000, precious metals are top sellers at Costco — and a cheat code for boosting its e-commerce business

As gold prices hit record highs, demand for the precious metal is running hot at Costco. The price of the yellow metal topped $4,000 an ounce for the first time on Tuesday, and is driving strong sales for the wholesale club.While the company didn't break out exact sales figures for the products in its fiscal year earnings call in September, it said the category continued to be a top seller online. Analysts previously estimated that the company sells around $200 million of gold and silver each month. Forme ...