Friday's biggest gaining and declining stocks By: MarketWatch May 28, 2010 at 09:59 AM EDT Shares of CKK, Ener1, Blue Coat, Omnivision, Baker Hughes, Halliburton and Omnivision were making notable moves in Friday's stock market. Read More >> Related Stocks: Baker Hughes Inc Diamond Offshore Drilling Halliburton Co Quanex Building Products Corp