Intercontinental Exchange Inc. ICE, -0.36% the parent of the New York Stock Exchange, said Thursday it has reached agreement to acquire the Chicago Stock Exchange without disclosing terms. The news comes after The Wall Street Journal reported last week that the NYSE was in talks on such a deal and was offering about $70 million. In March, the Chicago Stock Exchange ended talks with a Chinese investor group after two years, amid rising tensions between the U.S. and China. ICE said the Chicago exchange will continue to operate as a registered national securities exchange. The deal is expected to close in the second quarter and will not be material to ICE or its capital return plans. ICE shares were not yet active premarket, but have gained 20.7% in the last 12 months, while the S&P 500 SPX, +1.16% has gained 12.4%.