George Gero, senior vice president at RBC Capital Markets, says that commodities "could see sell stops later in the day in general as dollar picks up a little," meaning that traders are forced to sell as gold, for example, if it breaks below a certain level. Although some experts think that investors will be reluctant to truly abandon large gold positions as a rally to $1,500 is still waiting in the wings. "Ongoing concerns of EU debt, low interest rates and ongoing inflation concern are bullish longer-term for gold and silver with dips to be viewed as a buying opportunity," says James Moore, research analyst at FastMarkets. Gold mining stocks, a risky but potentially more profitable way to buy gold, closed mostly lower Monday. Barrick Gold ( ABX) lost 3% to $52.70 while Newmont Mining ( NEM) was down 2.3% to $56.61. Other gold stocks, Randgold Resources ( GOLD) and AngloGold Ashanti ( AU) were down between 2% and 4% to $85.33 and $48.89, respectively.