https://www.reuters.com/article/us-ant-group-ipo-regulation-exclusive/exclusive-chinese-regulatory-probe-delays-approval-for-ants-ipo-sources-say-idUSKBN26Y18S >China's securities regulator is probing a potential conflict of interest in fintech giant Ant Group's planned $35 billion stock listing, delaying approval for what could be the world's largest IPO, three people with direct knowledge of the matter said.