NEW YORK (AP) ¿ The following stocks were among those that moved substantially or traded heavily Thursday on the New York Stock Exchange and the Nasdaq Stock Market: NYSE: Merrimac Industries Inc., up $4.36 at $15.90 Diversified manufacturer Crane Co. is buying the company for $52 million, a steep premium to its closing price the day before. Jackson Hewitt Tax Service Inc., down $1.34 at $4.50 The tax-return preparer said the bank supposed to supply its tax-refund loans would likely not be able to do so. Valley National Bancorp, up 14 cents at $14.13 The regional bank said it repaid $100 million it owed the U.S. government under the Troubled Asset Relief Program. General Steel Holdings Inc., down $1.22 at $4.57 The Chinese steel company will sell 5.6 million common shares and warrants for up to 2.8 million shares to raise $25 million. NASDAQ: Hoku Scientific Inc., up 30 cents at $2.76 A Chinese company, the new majority owner of the supplier of silicon for solar panels, canceled Hoku debt and is loaning it $50 million. YRC Worldwide Inc., up 7 cents at $1.02 The trucking company extended the deadline on a debt-for-equity offer it needs to stave off bankruptcy for the fourth time, to Dec. 28. Arena Pharmaceuticals Inc., down 15 cents at $3.64 Pharmaceutical giant Merck & Co. is ending a collaboration with the drug developer after a disappointing drug trial. Apple Inc., up $6.94 at $209.04 Mounting anticipation for the debut of its rumored tablet device pumped up the technology company's shares to a record high.