Spot gold for December ended the session lower by $3.60 to $1873.30 an ounce. Earlier in the day, gold reached a new all time high of $1923.70 before reversing lower. Many traders and investors believe that it is the strong surge in the U.S. Dollar Index that helped to pullback gold back from the intra-day highs. While a stronger U.S. Dollar Index will usually cause most industrial commodities to retreat it usually has very little effect on gold these days. Many traders are anticipating another margin rate increase very soon from the CME Group. This is what most likely caused traders to flee from the precious metal after briefly making an all time high this morning.