Editor's Note: In this feature from Stockpickr, we highlight lists of stocks that have made new highs, lows or seen other unusual activity. Biggest % Gainers: Accredited Home Lenders ( LEND) gained 31% Friday, a day after the company lost almost half of its market value. The gain came even as the subprime mortgage lender issued a statement noting that turmoil in the mortgage market could put it out of business. The stock climbed $1.66 reaching $6.97. 52-Week Highs: Ruddick ( RDK) climbed 14.7% Friday after the company reported strong third-quarter earnings and a ratings upgrade from BB&T Capital Markets. Ruddick is a holding company for Harris Teeter supermarkets and textile maker American & Efird. The stock added $4.18, reaching a new 52-week high at $32.48. Rising on Unusual Volume: Infocrossing ( IFOX) increased 4% as news that Wipro, India's third largest software services exporter, would acquire the company. Reports of the deal, expected to be priced around half a billion dollars, sent trading volume up almost 600%.The technology services company added 73 cents Friday to $17.73. Biggest % Losers: American Home Mortgage ( AHM) plunged 52% Friday after the company said it would lay off 6,000 workers, or 90% of its workforce. CEO Michael Strauss said market conditions have left the company with "no realistic alternative." Shares traded lower by 76 cents, closing at 69 cents. 52-Week Lows: Bear Stearns ( BSC) dropped 6.3% to a new 52-week low after Standard & Poor's lowered its outlook on the broker's credit rating to negative from stable, noting Bear's troubled hedge fund business. The stock closed down $7.28 at $108.35. Stocks with Unusual Option Activity: Mirant ( MIR) was experiencing unusual option activity Friday. Shares closed down $1.46, or 3.8%, to $36.85. Latest Activist Situations: In a new letter to Dillard's ( DDS), Barington Capital repeated its request to meet with the company's management team to discuss measures they believe will maximize shareholder value. The stock lost $2.62, or 9.2%, Friday, closing at $25.62.