Malaysian share prices closed 0.67 percent lower on Thursday due to poor second-quarter gross domestic product growth data and overnight falls on Wall Street, dealers said.
The Kuala Lumpur Composite Index was down 6.23 points to 919.85 while volume was 348.11 million shares, worth 627.18 million ringgit (166 million dollars) and losers outnumbered gainers 462 to 243.
Dealers said sentiment was further weighed down by record high oil prices.
Malaysia's economic growth moderated to 4.1 percent year-on-year in the second quarter from a revised 5.8 percent in the first, below market expectations of five percent.
The ringgit held steady at 3.77 to the US dollar.
"A combination of weaker second quarter economic growth, high oil prices and certain disappointing corporate earnings further dampened investors' sentiment," a local brokerage dealer said.
Among blue chips, Tenaga Nasional and Telekom Malaysia were both down 0.10 ringgit at 11.00 each respectively while Malayan Banking was flat at 11.30.
Maxis Communications was down 0.40 at 9.60 ringgit after posting weaker results for the second quarter to June.
Matsushita Electric Co Malaysia was up 0.10 at 11.90 ringgit after the company posted improved results for the first quarter to June.