DDD showing weaknessIf you're looking for a sell opportunity then DDD looks promising. The decline has been steep since the high (which didn't quite touch $100) at the end of 2013.
On the weekly chart price looks almost certain to end the week below the 200ma. If this does occur then a shorting opportunity may present itself (although we should wait one more trading day just to be certain).
On the daily chart there was a large reversal candle at the 200dma (1st July) since which price has continued it's bearish move. A further gap down (on higher volume on 22nd October) gave yet more weight to a continued decline.
There could be resistance at the $28-$30 zone but, if you like to short in an overall bull market, DDD should be added to your watchlist.