At 9am, the benchmark FTSE Bursa Malaysia KLCI (FBM KLCI) was down 25.41 points at 1,447.36 from Thursday's close of 1,472.77.
The index opened 11.84 points weak at 1,460.93.
The bourse started weekend trading in red territory after tracking Wall Street’s overnight losses as investors remained cautious about the global economic outlook amid market uncertainty.
On the broader market, investors saw losers at 466 outpacing gainers at 49, while 200 counters were unchanged, 1,564 untraded and 21 suspended.
Total turnover at 387.81 million units worth RM134.35 million.
Rakuten Trade Sdn, vice president of equity research, Thong Pak Leng, said investors were still worried about the Federal Reserve's (Fed) aggressive approach in controlling the economic downturn.
As a result, the KLCI is expected to be at 1,460 to 1,470 based on market volatility with selling sessions on Wall Street against several sectors.
Heavyweights saw Malayan Banking Bhd (Maybank) lose 7 sen at RM8.65, Public Bank Bhd fell 5 sen at RM4.50, Petronas Chemicals Group Bhd budged 15 sen at RM9.48, IHH Healthcare Bhd declined 13 sen at RM6. 21 and CIMB Group Holdings Bhd fell 7 sen to RM4.95.
Active stocks saw Sapura Energy Bhd and TWL Holdings Bhd remain 5 sen and 7 sen, Dagang NeXchange Bhd (DNeX) lost 2.5 sen at 81.5 sen and Bintai Kinden Corp Bhd fell 1 sen at 9 sen.
On the index board, the FBM Emas index fell 159.19 points at 10,335.40, the FBM Emas Shariah index declined 201.16 points at 10,462.47, FBM 70 lost 142.09 points at 12,498.05, FBM ACE contracted 57.94 points at 4,756.80 and the FBMT 100 index declined 16,065.13 points.
In terms of sectors, the Financial Services index declined 152.98 points at 16,206.29, the Plantation index declined 156.98 points at 7,161.09 and the Products and Services Industry index declined 3.31 points at 185.51.