BUFFER is anything that stands between two other things. For example, an inventory buffer would be additional inventory over and above committed or planned inventory. The inventory buffer will act as an inventory reserve to ensure that sufficient inventory is available when and if required, i.e., the buffer inventory stands between committed inventory and out-of-stock status.
PTI is Pretax Income.
NASDAQ is a computerized system established by the NASD to facilitate trading by providing broker/dealers with current bid and ask price quotes on over-the-counter stocks and some listed stocks. Unlike the Amex and the NYSE, the NASDAQ (once an acronym for the National Association of securities Dealers Automated Quotation system) does not have a physical trading floor that brings together buyers and sellers. Instead, all trading on the NASDAQ exchange is done over a network of computers and telephones. Also, the NASDAQ does not employ market specialists to buy unfilled orders like the NYSE does. The NASDAQ began when brokers started informally trading via telephone; the network was later formalized and linked by computer in the early 1970s. In 1998 the parent company of the NASDAQ purchased the Amex, although the two continue to operate separately. Orders for stock are sent out electronically on the NASDAQ, where market makers list their buy and sell prices. Once a price is agreed upon, the transaction is executed electronically.
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