Additional margin required to be deposited by a clearing member firm to the clearinghouse during periods of great market volatility or in the case of high-risk accounts.
Remember, I am neither a bear nor a bull, I am an agnostic opportunist. I want to make money short- and long-term. I want to find good situations and exploit them.
(1) The amount a price would be reduced to purchase a commodity of lesser grade, more click here