The coming meeting between Chinese President Xi Jinping and his US counterpart Donald Trump is on the radar of market traders in mainland China and Hong Kong, as the results – whether smiling handshakes or a tense test of wills – could lead to market volatility. However, current market expectations of substantial results from the meeting are so low that investors have so far put the event on the back burner when considering variables that will jolt stocks. Many stock traders are paying less...