Leverage – credit leverage – it is a certain relation of own money to credit one in closing deals in financial market. Such leverage is given by a trader for profit increasing from closing deal. But losses in trading operations, using this leverage, are also multiplied. Very often leverage is used by traders in trading in currency markets Forex (leverage can be from ten to hundred). In deals, concerning shares, leverage is lower. The minimal account, when you can be accredited by a broker is called marginal account.