Gold pushed upward through several psychological levels this year, rising to $1,550 per ounce by September. Photo: Getty Images
Gold pushed upward through several psychological levels this year, rising to $1,550 per ounce by September. Photo: Getty Images

How investors can cash in on gold's bull market ​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​