Some of the stocks that may grab investor focus today are: WD-40 Company WDFC 1.73% reported better-than-expected earnings for its second quarter, but the company missed analysts' sales estimates. WD-40 shares fell 0.97 percent to $106.00 in the after-hours trading session. Ruby Tuesday, Inc. RT 14.37% reported weaker-than-expected results for its third quarter. Ruby Tuesday also announced its Chief Financial Officer Jill Golder will be resigning after three years with the company. Ruby Tuesday shares dipped 18.43 percent to $4.25 in the after-hours trading session. Find out what's going on in today's market and bring any questions you have to Benzinga's PreMarket Prep. DST Systems, Inc. DST 2.21% is considering a sale of its customer communications division, according to sources, as reported by reported by Bloomberg on Thursday. DST Systems shares fell 0.39 percent to close at $111.33 yesterday. Gap Inc GPS 9.07% reported a 6 percent drop in its same-store sales for March 2016, versus to a 2 percent gain during the same period last year. The company saw net sales for the five-week period ended April 2 fall around 6.5 percent on a year-over-year basis to $1.43 billion. Gap shares tumbled 8.78 percent to $25.26 in the after-hours trading session. Duluth Holdings Inc DLTH 11.95% reported upbeat results for its fourth quarter on Thursday. Duluth Holdings shares jumped 9.43 percent to $19.50 in the after-hours trading session. Read more: http://www.benzinga.com/news/earnings/16/04/7818455/5-must-watch-stocks-for-today#ixzz45F7EJuf1