1) Commodity one deals in 2) Merchandise and such 
n. the inventory of merchandise held for sale.
(n) Stock in trade is the collection of goods, inventories and merchandise, maintained by a business entity for the purpose of using them for processing, making salable goods or for selling to the customers with an intention to make profit from such deals.
Raw materials and finished products carried in stock by a company. These would be included in the... <a target=_blank href='http://www.finance-glossary.com/terms/stock-in-trade.htm?id=1372&ginPtrCode=00000&PopupMode=false' title='Read full definition of stock in trade'>more</a>
The inventory held by a business for sale.
[n] - any equipment constantly used as part of a profession or occupation
noun any equipment constantly used as part of a profession or occupation; `friendliness is the salesman`s stock in trade`
the requisites for carrying on a business, esp. goods kept on hand for sale in a store. · resources or abilities peculiar to an individual or group or employed for a specific purpose: A feeling for language should be part of the stock in trade of any writer.