Deep market (See Chapter 15 of the Vernimmen)

A "deep Market" is a Market which displays a high liquidity; it is easy to find buyers to which to sell an asset, or to find sellers from which to buy an asset. The Market can relate to a specific financial instrument (E.g. share, bond, option…), or to an entire Stock Exchange (E.g. New York Stock Exchange or London Stock Exchange), or to an entire asset class (E.g. crude oil or commodities).