July 6 (Bloomberg) -- Japan’s Nikkei 225 Stock Average fell 154.8, or 1.6 percent, to 9,661.27 as of the 11 a.m. trading break in Tokyo. The following are among the most active shares in the Japanese market today. Stock symbols are in parentheses after company names.

Arcs Co. (9948 JT) slumped 2 percent to 1,451 yen. The operator of supermarkets and discount stores said net income in the three months ended May 31 dropped 4.5 percent to 1.13 billion yen ($11.9 million), citing an increase in sales administration costs. Sales added 3.4 percent to 63.2 billion yen.

Askul Corp. (2678 JT) climbed 6.2 percent to 1,678 yen. The office-equipment distributor was raised to “buy” from “neutral” at Nomura Holdings Inc.

Belc Co. (9974 JT) fell 2.8 percent to 845 yen. The supermarket operator had a 35 percent drop in first-quarter net income to 388 million yen, while sales increased 5.9 percent to 25.5 billion yen.

Chuo Kagaku Co. (7895 JQ) rallied 7.5 percent to 444 yen. The maker of plastic food containers said it will sell 1 billion yen in new shares to Mitsubishi Corp. (8058 JT), Mitsubishi Plastics Inc. (4213 JP) and JSP Corp. (7942 JT) to form a business alliance. Mitsubishi Corp. declined 2.1 percent to 1,696 yen. JSP dropped 1.8 percent to 727 yen.

Daiei Inc. (8263 JT) fell 3 percent to 420 yen. The retailer had 1.25 billion yen in net loss for the three months ended May 31, compared with a 2.12 billion yen profit a year earlier. The company said weak sales of clothes and losses on revaluation of inventories diminished its profit.

DeNA Co. (2432 JT) surged 8.6 percent to 340,000 yen. The operator of auction and shopping Web sites will acquire more than 50 percent of Waptx Ltd., an operator of social networking Web sites for mobile phone users in China, the company said in a statement. DeNA plans to make the company, for whose services 9 million people are registered, a subsidiary, according to the release.

Denki Kagaku Kogyo K.K. (4061 JT) jumped 5.6 percent to 285 yen, headed for the highest since Sept. 26. The chemical products maker was lifted to “buy” from “neutral” at Nomura Holdings Inc.

Kinden Corp. (1944 J0) sank 4.6 percent to 818 yen. Morgan Stanley analyst Atsushi Takagi reduced the electrical and environmental engineering company to “equal-weight” from “overweight.”

Kissei Pharmaceutical Co. (4547 JT) tumbled 7.6 percent to 2,130 yen, set for the sharpest slide since September 2001. The drugmaker said GlaxoSmithKline Plc (GSK LN) will discontinue developing Remogliflozin, a novel agent for diabetes, citing progress in development by competitors. Kissei discovered Remogliflozin and offered a license to Glaxo to develop and sell the drug in the U.S. and Europe.

Maruka Machinery Co. (7594 JT) plummeted 9.9 percent to 694 yen, heading for its biggest decline since February 2006. The wholesaler of industrial and construction equipment slashed its net income forecast for the year to November 79 percent to 170 million yen, citing a slump in capital spending. Projected sales were revised down by 31 percent to 27.5 billion yen.

Nissen Holdings Co. (8248 JO) plunged 11 percent to 339 yen, set for its lowest close since February 2002. The mail-order business operator slashed its full-year net income forecast 85 percent to 600 million yen, citing fewer copies of catalogues and changes in its deferred income tax assets. Sales outlook was reduced 8.4 percent to 143.6 billion yen.

Pasona Group Inc. (2168 JT) soared 8 percent to 67,500 yen. The temp staffing provider’s full-year net income totaled 310 million yen, beating its forecast by 63 percent, the company said in a preliminary earnings statement. It cited cost cuts for the improved performance. The company earned 2.96 billion yen a year ago.

Riso Kyoiku Co. (4714 JT) climbed 9.5 percent to 4,600 yen, heading for the highest since October 2007. The operator of preparatory schools increased the planned midterm dividend to 65 yen from 40 yen. The company booked 320 million yen in net loss for the three months ended May 31, compared with a 13 million yen profit a year earlier. Sales declined 11 percent to 3 billion yen.

Yamato Holdings Co. (9064 JT) gained 1.9 percent to 1,270 yen. Japan’s biggest parcel delivery company may have a 14 percent increase in operating profit to 6 billion yen for the quarter ended June, Nikkei English News reported. Sales may have dropped more than 2 percent to 290 billion yen, Nikkei said. Yamato has countered the sales decline by cutting part-time positions and drivers’ overtime pay, Nikkei reported.

To contact the reporters on this story: Akiko Ikeda in Tokyo at iakiko@bloomberg.net; Norie Kuboyama in Tokyo at nkuboyama@bloomberg.net.

Last Updated: July 5, 2009 23:15 EDT