Go for the Gold Miners (GDX)

For the most aggressive ETF trader, I would recommend the GDX, which an ETF that only invests in the gold miners. Gold miners will benefit more from the movement of the price of gold as every penny the price of gold goes up, is pure profit for the miner. Recently most of the gold miners took the hedges of their pricing to reduce volatility. It would be wise to look at this as a six month trade taking profits at intervals as they will be affected by the reduction in price of gold the same way.