How Computers Have Transformed the Stock Market

Floor traders vs. the rise of computers

"This is an example of potential operational risk. Again how can one trade, or a series of trades, influence a global market?" says Williams, author of the just-published book, "Uncontrolled Risk: The Lessons of Lehman Brothers and How Systemic Risk Can Still Bring Down the World Financial System." "This speaks to weakness in this overall system," he says.

World Stocks Slide on Greece, Dow Collapse

May 07, 2010 — World stocks were sliding Friday following Wall Street's plunge the day before, and on continuing fears over the state of Greek finances and fresh worries over the U.K. election. European shares recovered slightly ahead of U.S. jobs data. (May 7)