Singapore shares slipped 23.28 points, or 0.72 per cent, as investors continued to take their money off the table after last week's huge gains.
Stock markets across the globe jumped last week following the United States Federal Reserve's announcement that it would delay tapering its US$85-billion-a-month bond-buying scheme.
At home, some 4.31 billion shares worth $1.22 billion changed hands.
Losers outnumbered gainers 254 to 176.
Penny stocks dominated the action, with YHM the top active, rising 0.7 cents to 5.7 cents on a turnover of 894.8 million shares.