Three Short Candidates

A filter I like to use is when the 20EMA falls below the 50.  Today three diverse candidates from my Hard Asset list interest me.  They are; DO, EC, and CSIQ. The 20 is my stop if I am wrong.  For me, I will probably sell call spreads on these, as it is close to OPEX and I have high cash and margin levels from scaling out over the last week.  I will see what the morning brings.