Stock Market

12:33pm

Tue August 21, 2012
Planet Money

Episode 396: A Father Of High-Speed Trading Thinks We Should Slow Down

Originally published on Wed August 22, 2012 2:25 pm

Thomas Peterffy, shown here in 2010
Brendan Smialowski Getty Images
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Thomas Peterffy's life story includes a typing robot, a proto-iPad, and a vast fortune he amassed as one of the first guys to use computers in financial markets.

On today's show, Peterffy tells us his story — and he explains why he's worried about the financial world he helped create.

We learned of Peterffy's story from the forthcoming book Automate This.

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4:31am

Sat August 18, 2012
Business

In Wall Street 2.0, Computers Are King

Originally published on Sat August 18, 2012 1:03 pm

Weekend Edition Saturday host Scott Simon talks to Sean Gourley, physicist and founder of quid.com, about the computers that trade stock shares faster than human minds can comprehend.

1:17pm

Thu August 16, 2012
The Two-Way

Facebook Shares Battered As Insiders Are Allowed To Sell

Originally published on Thu August 16, 2012 1:42 pm

An illustration of an Apple iPhone displaying the Facebook app's splash screen in front of the login page.
Karen Bleier AFP/Getty Images

At one point today, Facebook's stock price sunk to a new low. At about $19.69, it was worth about half of what it was initially sold for in May.

Bloomberg explains that what is happening is that early investors in the company — including founder and CEO Mark Zuckerberg — were allowed to sell some of their stocks for the first time today.

Bloomberg adds:

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1:09pm

Thu August 2, 2012
The Two-Way

Knight Capital Says It Lost $440 Million Because Of Computer Glitch

Originally published on Thu August 2, 2012 1:39 pm

Remember the computer glitch that caused market turmoil Wednesday morning?

As we told you, it was caused by a computer glitch that accidentally forced Knight Capital Group to buy a great number of stocks.

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10:48am

Wed August 1, 2012
The Two-Way

Sharp Swings In Stocks Renew Concerns About Computer Trading

Originally published on Wed August 1, 2012 1:58 pm

"August 1st will be another day that will destroy investor confidence just like the May 6th [2010] flash crash."

That rather ominous sounding pronouncement comes from Joseph Saluzzi, co-head of equity trading at Themis Trading LLC in Chatham, N.J., in a Bloomberg News report about what happened early this morning on Wall Street.

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