- Gold bars and silver coins continue to show strong sales for Costco.
- The company sells an estimated $200 million per month of the metals.
- Though the markup is low, these high-value items help the company show strong e-commerce growth.
Gold bars and silver coins had another quarter of strong sales for Costco.
While the company didn't break out exact sales figures for the products in its third-quarter earnings call Thursday, it did say the category was a top seller online, alongside appliances, gift cards, and e-tickets.