The Associated PressNEW YORK (AP) â¿¿ Stocks that moved substantially or traded heavily Tuesday on the New York Stock Exchange and Nasdaq Stock Market: NYSE Saks Inc., up $1.30 at $7.90 Shares soared after a London newspaper said private equity firms could make a bid for the luxury retailer. Monsanto Co., down $3.25 at $52.65 The world's largest seed company said it expects full year earnings at the low end of its previous expected range. Lions Gate Entertainment Corp., up 65 cents at $7.14 Activist investor Carl Icahn raised his bid for the film studio, driving up shares to a new 52-week high. Peabody Energy Corp., up 88 cents at $42.79 Shares of the coal mining company rose after Standard & Poor's Equity Research recommended the company's stock, citing positive trends in the coal industry. Skilled Healthcare Group Inc., up 89 cents at $3.36 Shares of the nursing facility operator rebounded after the company indicated it may be near a settlement over alleged safety violations. Comerica Inc., up 97 cents at $34.41 A Baird analyst upgraded his rating, saying a recent sell-off of the regional bank was too steep given its improved credit trends and growth expectations. NASDAQ Mediacom Communications Corp., down $1.05 at $5.80 The head of the cable television company said he has withdrawn a proposal to take it private after its board rejected his latest offer. Winn-Dixie Stores Inc., down $1.46 at $6.56 The grocery chain lowered its outlook for the year and reported that revenue at stores open at least a year fell in the fiscal fourth quarter.