$DUST fell over 17% to $45.95 in yesterday's trading session. It looks like it has broken below the March 2013 lows, so it might have further to fall. It traded as high as $166 back in June. If you think the recent gold rally is not sustainable then this is for you. I am not a long term gold bear so I think this is a little risky. Gold could be headed upwards even further meaning $DUST could be about to get smacked and a short position could be profitable.