The index of the Indonesian Stock Exchange fell 54.22 points or 1.04 percent to 5,142.99 points with index of 45 most liquid stock down 1.16 percent to 873.43 points.
"Falling share prices in the regional market was responded negatively by the domestic market players bringing down the JCI," chief researcher of Recapital Securities Andrew Argado said.
Andrew said shrinking regional market triggered profit taking in Indonesia.
Foreign net sell reached Rp815.534 billion in Wednesday trading, data at the BEI showed.
Negative sentiment in the country was brought about by the increase in the price of 12-kg liquefied petroleum gas (LPG).
The increase in the LPG price and plan to raise the prices of subsidized oil fuels were feared to trigger a surge in inflation, Andrew said.
"Inflation is one of the main causes for concern among the market players," he said.
Trade on Wednesday was marked with 219,865 transactions and 4.46 billion shares worth Rp4.58 trillion changing hands.
Gainers were outnumbered by decliners by 82 to 268 shares with 71 shares flat .
Regional markets such as Hang Seng and Straits Times recorded a decline in index but Nikkei index rose in the closing trade.(*)
Editor: Heru Purwanto
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