Top Narrow Based Indexes For May 18 (NGLPF, CREE, PSTI)

By 11:38 am, the Dow Jones Industrial Average was up 21.45 points, or 0.17%, to 12,501.03, while the broader Standard & Poor's 500 index had gained 5.39 points, or 0.41%. The NASDAQ composite index rose 14.22 points, or 0.51%. Some of the narrow based indexes that are driving the markets are Geothermal Stocks, which have gained 4.2%, LED Stocks, up 3.2%, and Stem Cell Stocks, moving 3.2% higher as a group. In Tickerspy's Geothermal complex, Nevada Geothermal Power Inc NGLPF had surged 13.9%. NGLPF's trailing-twelve-month operating margin is 21.78%. The best performing Tickerspy LED stock has been Cree Inc CREE, which was up 6.3%. CREE's PEG ratio is 1.28. Pluristem Therapeutics Inc PSTI is today's leading Tickerspy's Stem Cell stock, gaining 6.4%. PSTI had no debt for the latest quarter. Read more from Benzinga's Markets.