Nasdaq not yet subpoenaed in N.Y. high frequency trading probe-CEO
April 24, 2014 at 10:15 AM EDT
NEW YORK, April 24 (Reuters) - Nasdaq OMX Group Inc has not to date received a subpoena from the New York attorney general as part of its industrywide probe into allegedly unfair technological advantages on Wall Street, Nasdaq Chief Executive Officer Robert Greifeld said on Thursday.
