And lately its proving which. Were talking about technology ocks. Thesi nasdaq com dominated by tech closed at yet another record high today, now on track for the best year in a decade as a matter of fact. Theector as reflected by in etf is up more than 40 so fa this year. And its been helped by a 50 gain in sem conductor stocks and a doubledigit rise it in social media shares. As it happenings the nasdaq was the only of three major indexes to finish higher. Lthe dow f 102 points. Back below 28,000. The s p fell by 1 point. Bob pisani looks closer at techs big run. The markets clearly overbaulgt butot much worry not yet. The major averages chewing in which and eit highsry day. The s p up 10 off 3 trading day this is month. The marketic tecns dont seem crn the market is getting too far ahead of its. There is the fear offis ming out calling it f. Omo. He is that is forefactor the s Technology Store the big leaders in particular. The top ten having big gains above the s p 500. Look. The s