Marketplace Index for Friday, December 23, 2011

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Episode Description 
High-frequency trading (HFT) is when sophisticated computerized algorithms buy and sell stocks at speeds as fast as a nanosecond, hundreds of thousands of times a day. We talked to Sal Arnuk of Themis Trading. Every day, he and his guys trade millions of shares for pension funds, mutual funds and other firms that manage your money. For Sal, high-frequency traders are his worst enemy -- a faceless computer who can beat him to every trade. And the Daily Pulse is down today on news that, barring a minor miracle, 2011 will be an all-time low for new-home sales.

New-home sales tank in 2011

This year may go on record as the worst for new-home sales since anyone started keeping record.
Posted In: home sales, construction, interest rates

High-frequency trading: speed matters

High-speed computer transactions are making the market more treacherous for smaller investors.
Posted In: high-frequency trading

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