Focus on a few industries or markets. If you’re a techie who spends his time buying and reading about the latest gadgets, you can draw on the information you obtain to help you make decisions on how to invest in the technology sector. Mutual fund companies and the like dedicate entire teams of experts whose full-time jobs are to research and understand how to invest in companies. Owning stocks is nothing more than owning pieces of various businesses. For example, if you think that a new product being released by your favorite tech company is going to be a huge success, you may choose to invest in the company before the rest of the world realizes this and drives up the stock price. Stay up to date on news within that industry. In turn, these companies are able to provide greater value and return to their shareholders.