Top Narrow Based Indexes For July 28 (AFFX, HTM, STBUY)

By 1:13 pm, the Dow Jones Industrial Average was down 0.22 points, or 0.00%, to 10,537.47, while the broader Standard & Poor's 500 index had lost 2.21 points, or 0.20%. The NASDAQ composite index fell 10.87 points, or 0.48%. Some of the narrow based indexes supporting the markets are Genetic Analysis Stocks, which have gained 2.3%, Geothermal Stocks, up 2.3%, and Japan Stocks and ADRs, moving 1.3% higher as a group. In Tickerspy's Genetic Analysis complex, Affymetrix Inc AFFX had surged 10.5%. AFFX is developing a product for genotyping, particularly for Chinese populations. The best performing Tickerspy Geothermal stock has been US Geothermal Inc HTM, which was up 7.8%. HTM’s shares have tumbled 51.66% over the past 52 weeks, while the S&P 500 index has gained 13.70% in the same period. Sumitomo Trust & Ban STBUY is today’s leading Tickerspy's Japan Stocks and ADRs stock, gaining 4.7%. Read more from Benzinga's Company news.