I believe the difference is that AVXL has a number of trials which have concluded recently, or starting, IE they have news to report. NWBO's trial ended years ago, they have no new trials running and they're awaiting actions from the UK on a filing they made roughly 15 months ago. Clearly much is happening behind the scenes, but noting they can discuss.
I think they'll have much to discuss once they have an approval in the UK, but until that time, or perhaps if there is a settlement in their suit, they'll have something to say, and the Institutions and Brokerages will be interested in hearing it.
Gary
Bullish