The Los Angeles Business Journal’s index of largest local public companies rose for the week.

The weighted LABJ Stock Index rose 1 percent to 192.55 for the trading week ended March 10. Gainers outpaced decliners 111 to 41, with eight companies unchanged.

Many of biggest movers were tied to quarterly financial reports. L.A. diagnostic imaging firm RadNet Inc. jumped 48 percent to $2.82 on its better than expected fourth quarter. U.S. Auto Parts Network Inc., a Carson after-market automotive parts distributor, rose 39 percent after reporting a smaller fourth-quarter loss.

The biggest decliner was Thousand Oaks agricultural biotech Ceres Inc., which dropped 30 percent to $1.07 after pricing a stock offering below trading price.

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