Movers Roundup: Imax, Boston Private Financial

Among the stock activity stories for Friday, Sept. 18, from AP Financial News:

NEW YORK (AP) — Shares of Imax Corp. slid after Merriman Curhan Ford downgraded the stock, citing the company's rising stock price and new competition.

BOSTON (AP) — Shares of Boston Private Financial Holdings Inc. shot up as analysts upgraded the stock after the company announced it was selling its Florida-based bank.

SAN FRANCISCO (AP) — Shares of Sonic Corp. fell after a PiperJaffray analyst downgraded the restaurant stock to "Underweight" from "Neutral" and lowered earnings estimates for 2009.

NEW YORK (AP) — Shares of Syneron Medical Ltd. rose after an Oppenheimer analyst upgraded the stock, saying he believes the market for laser cosmetic surgery procedures has hit a low point and will start to recover.

NEW YORK (AP) — Shares of Procter & Gamble Co., maker of Tide laundry detergent and Gillette shavers, rose after a Citi Investment Research analyst upgraded the stock to "Buy," praising the company's new price-cutting strategy.

NEW YORK (AP) — Solid back-to-school sales could lead Zumiez Inc. to another month of sales growth, an analyst said as she upgraded the retailer's rating and boosted its price target.