The yield is an indicator of profitability and viability of your investment. By this unit of measurement, profit made over a yearly period is shown. Types of yield include internal, yearly, percentage, current, yield to maturity (for bonds), dividends (for stocks). Yield can depend on the means of trading (passive/active), as well as how the trader copes with the current market situation. One must always keep the probable risks under control when trading so as not to suffer large losses.