That said, stock markets hate uncertainty, and austerity in Argentina has created exactly that for Yamana Gold. Although Wall Street appears to be sharply overreacting to the news, it's just the latest reminder for individual investors that gold stocks tend to underperform the broader stock market over long periods of time. If the business encounters an unforeseen production delay -- not at all uncommon in the mining industry -- then things could get even worse. But if the business keeps executing, then this stock could be a bargain come 2021, especially if export taxes are lifted or reduced. Right now, it's best to consider it a relatively risky investment opportunity.