The Madeleine Brand Show

The Madeleine Brand Show is a daily, two-hour program that looks at news and culture through the lens of Southern California. Hosted by Madeleine Brand

Computers take stock market on a wild ride

by The Madeleine Brand Show

44255 full
Traders work on the floor of the New York Stock Exchange on August 1, 2012 in New York City. Spencer Platt/Getty Images

Investors suffered through a bit of déjà vu yesterday, as a computer glitch affected the routing of shares of around 150 stocks, causing big swings in some share prices.

The firm that made the trades, Knight Capitol of New Jersey, said that a technical problem caused shares of a number of stocks to swing wildly for close to an hour. Wizzard Software, for example, raised to $14.76, after closing the night before at $3.50.

For investors, it was the latest breakdown in the increasingly complicated electronic systems that run stock trading. Those systems have been showing signs of strain as more traders and big investment firms use computers to carry out trades in fractions of a second.


Heidi Moore, Marketplace New York bureau chief

blog comments powered by Disqus

Enjoy The Madeleine Brand Show? Try KPCC’s other programs.

What's popular now on KPCC