Just relax. The stock is NOT having the negative move other junior/major mining stocks are.
Look at MUX - McEwen's company OUCH! trading at 1/3 of it's summertime value.
Now ask yourself why it isn't moving down like the others. Look at your account balance, see how much capital you have and add to your PRB position. You will be buying a new tent tentski well before Boxing Day.