There are two key ways that a corporate bond investor might profit from his or her investment. The first option is to keep the bonds until they reach maturity and earn interest payments. Coupons (interest on bonds) is paid every 6 months. The interests can be reinvested and compounded to increase profit. The second strategy to profit from bonds is by selling them at a profit in the secondary market.
For example, if you purchase $100,000 worth of bonds at face value and then sell them for $110,000 when their current market value increases, you have gained $11,000,