NEW YORK (AP) — Stocks that moved substantially or traded heavily Monday on the New York Stock Exchange and the Nasdaq Stock Market: NYSE Family Dollar Stores Inc., up $15.08 to $75.74 The discount retailer is being bought for $8.5 billion by rival Dollar Tree, which is significantly broadening its reach as it looks to fend off Wal-Mart. Trulia Inc., up $8.69 to $65.04 The real estate website operator is being bought by rival Zillow in a $3.5 billion all-stock deal expected to close next year. Tyson Foods Inc., up $1.02 to $40.56 The meat processor reported a jump in quarterly sales and plans to sell its Mexican and Brazilian poultry units for $575 million. Armstrong World Industries Inc., down $5.77 to $49.60 The flooring products and ceiling systems maker reported lower-than-expected quarterly profit and cut its full-year guidance. Nasdaq Horizon Pharma Inc., down $4.75 to $9.15 The drug developer said two of its key products will be placed on exclusionary lists by the two largest pharmacy benefit managers. AcelRx Pharmaceuticals Inc., down $4.44 to $6.39 The Food and Drug Administration rejected the company's painkiller-dispensing device Zalviso, partly citing data on shelf life. Lincoln Electric Holdings Inc., up $3.28 to $70.05 The welding and cutting products company reported a better-than-expected second-quarter profit and declared a quarterly dividend. Alliance Resource Partners LP, up $1.44 to $50.09 The coal mining company reported better-than-expected quarterly profit and revenue and increased its cash distribution.Read more on NewsOK.com