Singapore Stocks: Noble, Singapore Exchange, Singapore Post

May 3 (Bloomberg) -- Singapore’s Straits Times Index dropped 0.8 percent to 3,153.57 at the 5:10 p.m. close. Almost five stocks fell for each that rose in the benchmark index of 30 companies.

Shares on the measure trade at an average 14.5 times estimated earnings, compared with about 15.6 times at the end of 2010, according to data compiled by Bloomberg.

The following shares were among the most active in the market. Stock symbols are in parentheses after the company name.

Commodity suppliers: The Thomson Reuters/Jefferies CRB Index, which tracks prices of 19 commodities from copper to corn, dropped 0.6 percent in New York yesterday, its first decline in three days.

Noble Group Ltd. (NOBL SP), a Hong Kong-based supplier of commodities, declined 3.6 percent to S$2.15. Olam International Ltd. (OLAM SP), a Singapore-based supplier of agricultural commodities, lost 1.4 percent to S$2.83.

Singapore Exchange Ltd. (SGX SP), whose A$8.3 billion ($9.1 billion) takeover bid for ASX Ltd. was blocked by Australian regulators, declined 1.7 percent to S$7.67 . The company is prepared to discuss a merger with other bourses such as Hong Kong, according to President Muthukrishnan Ramaswami.

Singapore Post Ltd. (SPOST SP), the operator of the city’s post offices, fell 0.9 percent to S$1.15. The company said fourth-quarter net income declined 9.6 percent from a year earlier to S$37 million.

SMRT Corp. (MRT SP), Singapore’s biggest commuter-train operator, added 0.5 percent to S$1.91. The company said fourth-quarter net income increased 50 percent to S$34 million from a year earlier.

To contact the reporter on this story: Jonathan Burgos in Singapore at jburgos4@bloomberg.net.

To contact the editor responsible for this story: John McCluskey at j.mccluskey@bloomberg.net.