ACCOUNT AGING usually refers to the methods of tracking past due accounts in accounts receivable based on the dates the charges were incurred. Account aging can also be used in accounts payable, to a lesser degree, to monitor payment history to suppliers. See also AGING OF ACCOUNTS.
BLOCK TRADE is a purchase or sale of a large quantity of stock of 10,000 shares or more. For purposes of NASD Rule 6541 regarding Limit Order Protection, a block trade is defined as one for 10,000 shares or more and greater than $20,000 in value.
SIPS is an acronym for Secure Internet Payment Service (e.g., Cybercash).
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