CDEL is just the market maker for whomever is placing a trade. A few weeks back there was a big accumulator via CDEL. Right now there is someone ask sitting through CDEL.

My guess is that the CDEL buyer bought 5 to 10 million shares and needs a high volume rally so he can take some profits so he wants to hold the lid on this thing until pressure really builds. Institutional traders sell into high volume rallies then turn around and buy back in when the stock pulls back to repeat the process again.

The key thing is they need a high volume rally to unload.