What is equities trading?
When you buy an equity (share), you're buying a small unit of ownership in a company. As such, you become a part-owner (or shareholder) of the company. Equity trading is the buying and selling in the form of shares in the hope of earning a profit.
Why trade shares?
Normally, you would buy shares in a given company in the hope that the company would rise in value. As a company's value increases, so does the price of its shares, which could then be sold for a profit. If the company's value decreases, shares will drop in price and may have to be sold for a loss. As shareholder of the company, sometimes, you might also be eligible to receive a portion of the company's profits in the form of a dividend.