The index of the Indonesian Stock Exchange (BEI) fell 87.31 points or 1.92 percent to 4,468.65 with index of 45 most liquid stocks down 2.54 percent to 770.86 points.
Reliance Securities analyst Lanjar Nafi said the majority of Asian market recorded a setback to follow the U.S. market.
Falling commodity prices also contributed to weakening Asian markets including BEI, Lanjar said.
"The JCI followed the global trend , prompting profit taking at the end of the week," he said.
Minimum economic sentiment in the country is feared to trigger capital flights until January, 2016, he added.
"Foreign investors recorded a net sell of around Rp309.63 billion," he said.
He predicted the JCI would technically fall again next week.
Trade ended on Friday with 196,441 transactions and 2.68 billion shares valued at Rp3.43 trillion changing hands.
Gainers were outnumbered by decliners by 103 to 179 shares with 82 shares remaining unchanged.
Regional markets such as Hang Seng, Nikkei and Straits Times recorded a decline in index.(*)
Editor: Heru Purwanto
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