外销员（export sales staff ）外贸外语辅导：Margin保证金[福步网络专业提供服务器、云主机、虚拟主机租用，为客户提供高质量国外服务器(海外服务器)] 越南服务器fob.vn
Margin allows investors to buy securities with money borrowed from brokers or banks. It is calculated based on the difference between the market value of the stock and the loan made by the lender. The extension of credit to customers for securities transactions in the U.S. is regulated by: the Federal Reserve Board, the New York Stock Exchange (NYSE), the National Association of Securities Dealers (NASD), and individual firms. The Federal reserve regulates the amount of money that a broker may lend to a customer through Regulation T (Reg T). Although Reg T allows for the extension of margin credit for any listed security, most brokerage firms have more strict lending rules and will not lend for the purchase of low-priced (penny stock) securities.