Stock Traders Find Speed Pays, in Milliseconds

It is the hot new thing on Wall Street, a way for a handful of traders to master the stock market, peek at investors’ orders and, critics say, even subtly manipulate share prices. It is called high-frequency trading — and it is suddenly one of the most talked-about and mysterious forces in the markets. Powerful computers, some housed right next to the machines that drive marketplaces like the New York Stock Exchange, enable high-frequency traders to transmit millions of orders at lightning speed and, their detractors contend, reap billions at everyone else’s expense. (New York Times)

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