The Los Angeles Business Journal’s index of the 200 largest local public companies closed flat for the week ended July 31 as gains among industrial and banking stocks were offset with losses in the consumer and entertainment sectors.

The weighted LABJ index increased less than one-quarter of a percent to close at 101.50, with gainers outpacing decliners 111 to 76.

Capstone Turbine in Chatsworth rose nearly 37 percent for the week after an announcement on July 27 that it had signed a major distributor to sells its products in the Midwest. Just three weeks earlier, Capstone’s turbines, which produce low-emission electricity, qualified for reimbursement under the U.S. government’s Recovery Act.

East West Bank in Pasadena rose 31 percent for the week after adding $249 million to its capital reserves. In mid-July the company sold $80 million in common stock and another $27 million in a private placement. The company added $141 million by converting its preferred stock to common stock.

Hanmi Bank in Koreatown also rose 31 percent in anticipation of its quarterly results, which will be announced Aug. 6. The company announced a deal during the quarter with a Korean investor to improve its capital reserves.

Among decliners for the week, THQ in Calabasas fell 22 percent despite announcing strong quarterly earnings. Analysts believe the video game publisher’s good fortunes came from the unexpected success of “UFC 2009 Undisputed.” But Colin Sebastian of Lazard Capital Markets warned investors that the company won’t have another major game launch until November, and his letter sent the share price down.

Other large decliners for the week included World Poker Tour, down 21 percent after it announced sharply lower quarterly earnings; and Sports Chalet, down 34 percent.