"...Because gold is so much more expensive than silver, the dollar valuations of each are distorted. At current prices and the amount of gold and silver bullion inventories in the world, there is more than 120 times more gold in the world than silver in dollar terms. What this means, among other things, is that it takes a lot more money to move the gold market than it does to move the price of silver. That's probably the biggest reason for why silver has been outperforming gold. There is nothing on the horizon to suggest that will change anytime soon. ..."
