The FBM KLCI rose 7.79 points to 1,653.90, after hovering between 1,649.27 and 1,655.49 throughout the trading session.
It opened 3.37 points higher at 1,649.48.
Dealers said investors turned cautious in late trading on concern over weak economic data from the world’s second largest economy, China.
The HSBC China manufacturing purchasing managers’ index (PMI) for August fell to 47.6, its lowest level since March 2009, down from 49.3 in July and slightly below a flash reading of the index late last month.
China’s official factory PMI, meanwhile, fell to a lower-than-expected 49.2 in August, the National Bureau of Statistics said on Saturday.
“Investors are awaiting action from the world’s major central banks to help spur the economic growth,” he added.
Last Friday, US Federal Reserve chairman Ben Bernanke said the central bank is prepared to take further steps to strengthen the economy if necessary but did not specify how and when it would be providing the additional stimulus measures, leaving investors clueless.
The Finance Index rose 49.76 points to 14,795.44, the Plantation Index added 49.89 points to 8,656.48 while the Industrial Index lost 4.72 points to 2,866.67.
The FBM Emas Index gained 50.96 points to 11,280.50, the FBM 70 Index improved 68.01 points to 12,320.54 and the FBM Ace Index rose 17.51 points to 4,609.14.
Losers led gainers by 424 to 360, 315 counters were unchanged, 520 untraded and 19 others suspended.
Total turnover rose to 1.49 billion shares worth billion RM1.68 billion from 1.37 billion shares worth RM1.71 billion last Thursday.
Volume on the Main Market declined to 672.32 million units valued at RM1.56 billion from 717.76 million units worth RM1.58 billion on Thursday.
Turnover on the ACE Market increased to 769.193 million shares worth RM116.01 million from 611.53 million shares worth RM132.34 million previously.
Warrants increased to 47.65 million units valued at RM4.004 million from 41.97 million units valued at RM3.66 million.
Of the actives, Nextnation Communication added three sen to 16.5 sen, Nextnation-WA rose half-a-sen to nine sen and 1 Utopia added one sen to 9.5 sen.
As for heavyweights, Maybank gained two sen to RM9.17, Sime Darby lost one sen to RM9.80 while CIMB added eight sen to RM7.87.
Consumer products accounted for 97.27 million shares traded on the Main Market, industrial products 114.495 million, construction 25.765 million, trade and services 256.100 million, technology 21.107 million, infrastructure 14.935 million, finance 53.152 million, hotels 686,100, properties 65.116 million, plantations 16.202 million, mining 186,300, REITs 7.108 million and closed/fund 190,800.
Meanwhile, Datasonic Group Bhd, an information and communications technology (ICT) solutions provider, including smart card personalisation in Malaysia, which made its debut on the Main Market of Bursa Malaysia today, ended today’s session at RM2.17, adding 17 sen from its initial offer price of RM2 with 11.954 million shares transacted.