New York, NY -- (SBWIRE) -- 02/25/2013 -- GT Advanced Technologies Inc. (NASDAQ: GTAT) opened at $3.21 and oscillated in the range of $3.15 and $3.24 in the latest trading session. It is at $3.16, up 0.32 percent from its previous close of $3.15. GT Advanced Technologies shows bullish trend and the stock’s first resistance level is at $3.25. Upon breaching this level, the stock may touch $3.40. On the downside, it may slip to $3.05.