Synopsys stock was falling Monday after the chip-design software company received conditional regulatory approval from China to move forward with its $35 billion acquisition of Ansys.The two companies were awaiting clearance from China’s State Administration for Market Regulation,

China's market regulator has conditionally approved U.S. chip design software provider Synopsys' acquisition of engineering design firm Ansys, clearing the last significant regulatory obstacle for the $35 billion buyout.