About MHT Files. Our goal is to help you understand what a file with a *.mht suffix is and how to open it. The MHTML Web Archive file type, file format description, and Mac, Windows, and Linux programs listed on this page have been individually researched and verified by the FileInfo team.
What is the 'Option Margin' The option margin is the cash or securities an investor must deposit in his account as collateral before writing options. Margin requirements vary by option type. Margin requirements are established by the Federal Reserve Board in Regulation T; individual brokers may impose additional requirements. The cash or securities an investor must deposit in his account as collateral before writing options. Margin requirements vary by option type. Margin requirements are established by the Federal Reserve Board in Regulation T; individual brokers may impose additional requirements.
Definition. A brokerage account in which the brokerage lends the customer cash with which to purchase securities. Unlike a cash account, a margin account allows an investor to buy securities with money that he/she does not have, by borrowing the money from the broker.The Federal Reserve limits margin borrowing to at most 50% of the amount invested. Some brokerages have even stricter requirements, especially for volatile stocks.nlike a cash account, a margin account allows an investor to buy securities with money that he/she does not have, by borrowing the money from the broker.