Vietnam's benchmark VN Index ended down 1.43 percent on Tuesday to close at 600.76, the lowest level since July 1, with most large caps losing ground in low volume. Heavy rains in northern Vietnam that inundated major coal mines over the past week have increased claim-related expenses of insurer BaoViet Holdings that tumbled 5.93 percent to over one-month low.
Other bluechips also declined, including Vietcombank , the country's biggest firm by market value, and food producer Masan Group. Vietcombank lost 3.97 percent, while Masan fell 5.06 percent. Trading volumes were 83.58 million shares, reaching the lowest level since May 15, Thomson Reuters data showed.