China is signaling that Alibaba and JD.com may delist from the US stock market, former NYSE president Tom Farley told CNBC. That comes as five Chinese companies including PetroChina said they plan to exit the NYSE. The US and China are in a dispute over accounting rules but Farley said such rules are key to the US market's credibility. Get the inside scoop on what traders are talking about — delivered daily to your inbox. Loading Something is loading.