Nasdaq OMX Group Inc. had a three-hour stock freeze on Aug. 22, 2013. A confluence of computer mishaps, including a flood of inaccurate data, that culminated in the failure of the exchanges backup systems was blamed for the markets stall. (Bloomberg)
Goldman Sachs Group Inc., on Aug. 20, 2013, sent thousands of mistaken orders that roiled the U.S. options market. The bank didnt have adequate safeguards to prevent its computers from placing about 16,000 mis-priced options orders that day, the U.S. Securities and Exchange Commission said in a statement last month. The bank recently agreed to pay a $7 million fine to settle the regulatory claims. (Bloomberg)
A trader works on the floor of the New York Stock Exchange in New York, U.S., on Tuesday, August 7, 2012. Photographer: Jin Lee/Bloomberg
Knight Capital Group Inc. lost more than $450 million in August 2012 when improperly installed software caused it to bombard stock exchanges with unintended orders. The company joined with Getco LLC to form KCG Holdings Inc. in 2013. (Bloomberg)
Nasdaq OMX Group Inc. botched Facebook Inc. on May 18, 2012 when the computer matching the first trade went into a loop. The exchange operator was fined $10 million by the U.S. Securities and Exchange Commission and in April said it set aside $31 million to settle litigation stemming from the ordeal. (Bloomberg)
Bats Global Markets Inc.s initial public offering on its own exchange was derailed by a software error. The March 23, 2012 computer malfunction also forced a halt in Apple Inc. shares. Transactions in Apple and trades for more than 1 million Bats shares were later canceled. (Bloomberg)
