SINGAPORE - Singapore stocks opened weaker on Monday (June 18), with the Straits Times Index heading down 0.68 per cent or 22.69 points to 3,334.04 as at 9.24am on concerns about a US-China trade war.

Losers outnumbered gainers 172 to 52, or about 10 stocks down for every three up, after 155.4 million shares worth $278.4 million changed hands.

Among the most heavily traded by volume, Yangzijiang Shipbuilding Holdings headed down 2.1 per cent or $0.02 to $0.945 with 12.8 million shares traded. Suntec Real Estate Investment Trust moved down 2.4 per cent or $0.04 to $1.66 with 8.4 million shares traded.

Active index stocks included DBS Group Holdings, down 1.5 per cent or $0.41 to $27.20; and OCBC Bank, down 0.9 per cent or $0.11 to $12.02.