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With High-Speed Trading, the Market Cannot Hold: Mark Buchanan

Oct. 5 (Bloomberg) -- Last year, when the U.S. Securities and Exchange Commission came out with its final report on the flash crash, the stomach-churning event of May 6, 2010, that wiped $1 trillion of value from the markets in less than 30 minutes, it never managed to explain why the episode happened.

A large trade of stock futures by a Kansas firm had sparked it, the report said, and it detailed the ensuing chain of events, without offering much insight into why such a tumult was possible.