Cash Equityrefers to the liquidity of an investment; or that portion of any investment that could be converted into cash. It also refers to the company issuing stocks to the public and their institutional trading. 

It is that property amount which is not borrowed against mortgage as the Line of Credit. In the capital market, cash equity trading refers to the trading of equities or stocks done by large financial institutions on major stock exchanges, i.e.,  Bombay Stock Exchange (BSE) and National Stock Exchange (NSE). 

On major stock exchanges these companies work by trading the shares using a firm's capital. For example, a financial institute called Z decides to buy 30 shares of ITC because of the expectation of rise in prices in the future. 

Hence, the company will trade on behalf of the customers registered under its name & will gain profit from ITC's profit too. It can keep the investment for a longer time or trade it for short-term gains.

Purchasing equity indicated ownership in the company. One can purchase shares and retain them for longer durations as a long term investment tool or shares can be traded for shorter durations to make quick profits.

Cash Equity trading by investment firms focuses on short term trading. They intend to generate quick and large profits from changing market prices. This would give their capital the desired liquidity.