The number of stock trading accounts in China has topped 100 million as investors look to cash in on the country's still rising bourses. Investors opened 385,000 trading accounts on Monday alone, the Financial Times reported, despite ongoing tightening measures. The benchmark Shanghai Composite Index, covering both A- and B-shares listed on the Shanghai Stock Exchange, ended Tuesday up 62.81 points or 1.47% at 4,334.92 on turnover of US$31.53 billion Tuesday, which marked a third consecutive all-time high despite recent warnings of market volatility, the South China Morning Post reported. Property and metal shares gained the most ground in the share price increase.