However, they added that the plantation index bucked the trend, gaining 0.87 percent, on expectations of higher crude palm oil prices.
The Kuala Lumpur Composite Index eased 2.39 points to 911.53 on volume of 330.52 million shares worth 920.65 million ringgit (243.71 million dollars) while gainers led losers 343 to 303.
The ringgit was traded at 3.7777 to the US dollar and 4.4668 to the euro.
A dealer said the main index might exceed 910 points Tuesday, with firm support at 900 points and resistance at 920 points.
Telekom was down 0.30 ringgit at 9.45 while Tenaga Nasional was flat at 10.00 ringgit, after gaining earlier on hopes of an electricity price hike, dealers said.
Malayan Banking was up 0.10 at 11.10.
Plantation stock Kuala Lumpur Kepong was up 0.25 at 8.20, Sime Darby rose 0.05 to 6.25, Kumpulan Guthrie was up 0.01 at 2.50 and PPB Oil gained 0.10 to 5.20.