I have pointed out the key levels which indicate a strong sell signal for this stock. Firstly, we have the breach of the 50 day moving average which was the first sign of weakness followed by the break of horizontal support (2). The most significant of all is break below the 200 day moving average which is the foremost sign of price weakness. It is starting to feel like the market is anticipating disappointing earnings on the 28th Feb, so I think you can target a short move to 40.50 for a quick profit. It could go lower but that would be a tidy enough profit.
Trade closed: target reached