Justice Department Seeks Data in Nasdaq-NYSE Antitrust Study

The U.S. Justice Department is querying market participants about how a takeover of the New York Stock Exchange would affect competition in equity listings.

Officials are asking how different outcomes for NYSE Euronext would affect companies trying to raise money in the U.S., according to a person with direct knowledge of the matter who declined to be named because the conversations are private. NYSE Euronext agreed to a $9.5 billion merger with Deutsche Boerse AG in February. It’s trying to fend off an unsolicited bid by Nasdaq OMX Group Inc. and IntercontinentalExchange Inc.