Traders work on the floor of the New York Stock Exchange (NYSE) in New York City, the United States, in this file photo. Intercontinental Exchange Inc.’s New York Stock Exchange (NYSE) is in talks to buy the Chicago Stock Exchange (CHX), the Wall Street Journal reported Friday, a month and a half after U.S. regulators blocked the sale of CHX to China-based investors. NYSE may pay about US$70 million for CHX, the paper reported.SD-Agencies