At the money (ATM) is a term used to describe an options contract with a strike price that is identical to the underlying market price. At the money, options see a lot of trading activity, because they are so close to becoming profitable.

An asset is an economic resource that can be owned or controlled to return a profit or a future benefit. In financial trading, the term asset relates to what is being exchanged on markets, such as stocks, bonds, currencies or commodities.

An asset class is a category of financial instruments - these can be physical assets or financial assets. The instruments are grouped into asset classes based on whether they show similar characteristics, behave in the same way on the market, or are governed by the same laws and regulations.

The ask refers to the price at which you can buy an asset or security from a seller. It can be variously referred to as ask, the ask, or asking price.