A handful of health-care stocks have doubled this year, and one has quadrupled ShutterstockEagle Pharmaceuticals is one of the best-performing Nasdaq stocks this year, rising 119%, and it is also among the 10 cheapest.Nasdaq’s health-care winners When looking at the best performers among Nasdaq stocks, especially for relatively short periods, the numbers can be astounding. But there’s tremendous volatility as companies try to bring new technologies and products to the market. Here are this year’s 10 strongest performers among Nasdaq stocks in various health-care industries, along with returns for previous periods:CompanyTickerIndustryTotal return - YTDTotal return - 2014Total return - 3 yearsTotal return - 5 yearsCapnia Inc.CAPN,-9.74%Medical Specialties336%N/AN/AN/AAnthera Pharmaceuticals Inc.ANTH,+0.00%Biotechnology213%-49%-91%N/ASemler Scientific Inc.SMLR,-3.53%Medical Specialties142%N/AN/AN/AEgalet Corp.EGLT,+0.20%Pharmaceuticals135%N/AN/AN/AEagle Pharmaceuticals Inc.EGRX,-0.76%Pharmaceuticals119%N/AN/AN/AFoundation Medicine Inc.FMI,-1.20%Biotechnology117%-7%N/AN/ACelluar Biomedicine Group Inc.CBMG,-0.03%Biotechnology116%153%249%166%Curis Inc.CRIS,-2.22%Biotechnology110%-47%-31%26%Apricus Biosciences Inc.APRI,-5.98%Medical Specialties107%-62%-40%-72%Echo Therapeutics Inc.ECTE,-2.90%Medical Specialties106%-57%-84%-85%Total returns assume reinvestment of dividends. Source: FactSet http://www.marketwatch.com/story/10-cheapest-stocks-in-the-n...