Gold has never been more expensive. That hasn’t stopped shoppers from snapping up gold bars sold by Costco Wholesales.The discount chain started selling one-ounce gold bars on its website and in stores last year.

Amongst Costco (COST) ’s offerings of appliances, groceries and its famed $1.50 hotdog, members of the warehouse club in recent months have also been able to purchase one-ounce gold bars. The unexpected offering was introduced by Costco last year to great success,

The company sold more than $100 million in gold bars in a three-month period between September and November 2023. It's betting that platinum will do just as well.