The stock was last quoted at $9.78, down nearly 13%, on after-hours volume of nearly 900,000, according to Nasdaq.com. OmniVision gave the outlook while reporting its second-quarter results, delivering a non-GAAP profit of $30.1 million, or 48 cents a share, for the October-ended period on revenue of $217.9 million. That performance was below its year-ago equivalent earnings of $34.2 million, or 58 cents a share, on revenue of $239.5 million, but ahead of the consensus view for earnings of 32 cents a share on revenue of $214.6 million. "We are disappointed by our second fiscal quarter financial performance, which comes after posting record revenues in four of our last five quarters," said Shaw Hong, the company's CEO, in a statement. "Our focus has always been on execution and technology leadership, and we will strive to regain our momentum." Based on Tuesday's regular session close at $11.19, OmniVision shares are down more than 60% so far in 2011. The stock plumbed its 52-week low of $10.40 on Nov. 10, and is also trading well below both its 50-day and 200-day moving averages of $14.83 and $23.64 respectively. Wall Street was split on OmniVision ahead of the report with 5 of the 10 analysts covering the stock at hold and the remainder split between strong buy (1) and buy (4).