The Associated PressNEW YORK (AP) ¿ The following stocks were among those that moved substantially or traded heavily Monday on the New York Stock Exchange: NYSE: Beazer Homes USA Inc., down 35 cents at $5.14 Federal regulators have notified the homebuilder that its top executive could face civil charges over incentive compensation. Merck & Co., up 71 cents at $33.81 Investors brushed off a rival company's study that showed its cholesterol drug is potentially more effective than Merck's Zetia. Citigroup Inc., up 13 cents at $4.18 The company said it would sell a majority stake in a Japanese unit for $1 billion in cash in a step to shed noncore assets. Lowe's Cos., down 11 cents at $21.74 The home-improvement retailer's profit fell 30 percent as customers continued to delay large purchases amid a weak economy. Illinois Tool Works Inc., up $2.04 at $51.02 The industrial products maker maintained its guidance for fourth-quarter earnings from continuing operations. Landry's Restaurants Inc., up $2.92 at $19.10 A shareholder announced plans to oppose the $1.2 billion private takeover of the restaurant chain by its CEO. NASDAQ: Westport Innovations Inc., up $1.12 at $12.23 The company, whose equipment enables cars to run on natural gas, announced a long-term contract with Swedish car and truck maker Volvo. Apollo Group Inc., up $3.14 at $57 The for-profit education company said the Department of Education granted it continued access to federal student loan programs.