In the chart below these technical reasons show perfectly. Notice the stock hit a major pivot top from October 2015 as well as a secondary upsloping trend line connecting the lows from August & September 2015. The fact that two major trend lines intersect right where price hit, tells us there is a 90% chance of a sharp correction in the $FCX price action. A pull back is likely to take you down to $11.00.
Note the chart below...
Gareth Soloway
InTheMoneyStocks