A financial market is a market in which people trade financial securities and derivatives at low transaction costs. Securities include stocks and bonds, and precious metals.
The term “market” is sometimes used for what are more strictly exchanges, organisations that facilitate the trade in financial securities, e.g. a stock exchange or commodity exchange. This may be a physical location or an electronic system. Much trading of stocks takes place on an exchange; still, corporate actions are outside an exchange, while any two companies or people, for whatever reason, may agree to sell stock from the one to the other without using an exchange.