Looking at weekly chart we can see a possibility to build a perfect head and shoulders pattern, At the moment we are in the top of right shoulder. The 0.23 fib could be a perfect target for a reversal. If it's a perfect symmetry we can target to the 0.5 fib, otherwise we can point to the 0.38 or around 55 dollars area. So look at momentum and volume for confirmations to begin the building of your entry position shorting. Put stop loss and good luck for your trading.