Exit BOM and look to reenter later.
I recommend BOM (PowerShares DB Base Metals Double Short ETN) as a proxy for trading the price of copper. I think copper is due for a corrective bounce that can carry a bit. So I think now is a good time to secure the open gains in your long BOM position (which moves inversely with the price of copper) and look to reenter at a better price in the next week or two.
Here is what I suggest you consider doing now:
BOM (Last price: $14.36)
SELL ALL your shares of PowerShares DB Base Metals Double Short ETN, symbol BOM, at the market.