March 29. 2013 1:29PM Shares of GT Advanced Technology rise on Powertec deal Source: http://www.businessweek.com/ap/2013-03-28/shares-of-gt-advanced-rise-on-powertec-deal GTAT rose 27 cents, or 9 percent, to $3.27 in afternoon trading. It reached $3.37 earlier in the session. Over the past 52 weeks, the company's shares have traded between $2.61 and $8.49.CLICK TO VIEW THE SOURCE MATERIAL Post a comment You must sign in before you can post comments. If you are experiencing issues with your account please e-mail email@example.com.