Risk: The tricky part is choosing the right stocks. Graves warns that too many novices jump into the market without thoroughly investigating the company issuing the stock. “You’ve got to investigate each company’s website and be comfortable with their financial statements,” Graves says. “You should spend two to three weeks investigating each company.”

In equity valuation, residual income represents an economic earnings stream and valuation method for estimating the intrinsic value of a company's common stock. The residual income valuation model values a company as the sum of book value and the present value of expected future residual income. Residual income attempts to measure economic profit, which is the profit remaining after the deduction of opportunity costs for all sources of capital.