| NEW YORK
NEW YORK May 13 A cluster of stocks suffered
from a bout of volatility near the closing bell on Tuesday in
what may have been a mini-"flash crash" event, with at least 17
stocks experiencing a sudden jump or fall in price and a spike
The flurry of activity occurred at 3:49 p.m. EDT (1949 GMT),
with most of the affected stocks listed on the New York Stock
Exchange, owned by IntercontinentalExchange Group Inc.
The volatility caused moves of up to about 5 percent in certain
stocks, such as Nabors Industries Ltd.
Names such as Caterpillar Inc, Southwest Airlines Co
and Western Union Co were among those affected.
Among Nasdaq-listed names, the exchange's own stock, Nasdaq OMX
Group Inc, was whipsawed.
The price moves did not trigger any volatility halts by the
exchanges, which were put in place after the "flash crash" on
May 6, 2010, when the Dow Jones industrial average lost
hundreds of points in minutes before quickly rebounding. Those
halts occur when the price of an individual stock moves 10
percent or more in a five-minute period.
The NYSE issued an alert after the closing bell that said it
is reviewing trades in five stocks - AOL Inc, Nabors
Industries, Marathon Petroleum Corp, Lorillard Inc
and Canadian Natural Resources Ltd. Nasdaq OMX
and Direct Edge also put out similar alerts, including those
same five stocks and Nasdaq OMX's shares as well.
A spokeswoman for the New York Stock Exchange was not
immediately available for comment. A Nasdaq spokesman declined
to comment beyond the issued market alert.
(Reporting by Chuck Mikolajczak and Rodrigo Campos; Editing by