Sorry I dont know what Srock is

Sam, are you trying to ask,"What's the difference between 'stock' and 'storage'?"?

"stock" means goods or supply for sale "storage" means space used to store goods

hi, if we relate them from each other, "stocks" are the 'merchandise' or 'goods' while "storage" is the depository (sometimes known as warehouse) for merchandise / goods. :)