The SPDR Gold Trust (ETF) (NYSE: GLD) has experienced a surge, with peaks of almost 8 percent and retracing its 50-day moving average since its lowest point in early November. However, the combination of an increasing U.S. dollar, declining interest rates, and latent inflation has not helped gold bullion prices or related mining stocks. Meanwhile, recent plunging crude oil and natural gas prices have given investors ample opportunity to make shrewd trades higher.