NEW YORK (TheStreet) -- Shares of GT Advanced Technologies Inc. (GTAT) are tanking -13.02% to $17 in early afternoon trading today, continuing a decline the stock started in pre-market trading following a ratings downgrade to "neutral" from "buy" at UBS (UBS - Get Report).
The firm lowered its rating on the solar and LED equipment company based on its belief GT Advanced will not meet the high end of its $600 million to $800 million 2014 second quarter sales guidance.
UBS maintained its $22 price target on the stock, but lowered its 2014 EPS on GT to 12 cents from 17 cents.
STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.