Stock market careers focus on trading, managing an investment portfolio, or providing advice or insights about stocks and other financial instruments. As a stockbroker or securities sales agent, you guide clients and helps them perform trades. Financial analysts and personal financial advisors provide advice to both commercial and individual investors, while hedge fund managers make trades on behalf of clients and investors with the goal of earning a profit for their clients. The duties and responsibilities of some traders focus on working to manage stock trading activities for a bank rather than trading on behalf of investors.