It may be hard to believe, but there are several stocks owned by George Soros, the noted stock trader, that are heavily shorted.When many investors bet against a particular stock, there is the possibility of a short-squeeze play, whereby a stock spikes upward on good news because of the short-sellers quickly covering their positions. Short-squeeze opportunities are generally measured by the short ratio, the number of days it would take the short sellers to cover their positions on the basis of recent volume. Fortunately, Stockpickr has done the homework for you and discovered Soros stocks with short ratios above 5, with some carrying ratios significantly higher. The Soros stock with the highest short ratio is Quest Diagnostics ( DGX), which is measured at 17.8. This health care diagnostic testing company recently declared a regular dividend of 10 cents per share, giving the stock a small yield of 0.8%. Quest will be presenting at the 26th annual JPMorgan Healthcare Conference. The stock has a P/E of 24 and a PEG of 1.29. One of the money managers that owns Quest is MD Sass Associates Inc., a New York-based asset-management firm that has $700 million under management. Sass also owns Joy Global ( JOYG), with a short ratio of 2.7, MSC Industrial Direct ( MSM), with a 3.6 short ratio, and Baker Hughes ( BHI), with a 3.7 short ratio.