OPK Unusual Option Activity

Re 18 Jan 2019 calls, there was another unusual purchase of about 4k calls within the past 5 days.  I think someone previously rolled out their $7 and $8 Jan 2018 calls with a huge loss into either March 2018 or Jan 2019 position.  Today's seems like a new purchase, but we'll see tomorrow.

Even more interesting is that these large positions are in Jan 2019 $10 calls, which represents an expectation of 100% price appreciation.  Just my interpretation.

I pay special attention to puts in Opk. Tks to MikeD's education and monitoring over the past couple of years, I think they preview what's about to happen, especially on the downside.  We haven't seen large put positions lately which I think is a good sign for us.  But let's see.  My options knowledge pales in comparison with you guys.