Personally, im with a few other investors here that simply believe AVNR will have to show that they can sell this at a justifiable revenue stream to validate a good share price.
Everyone can speculate about market size, probable market penetration, and corresponding future PPS, but the company is the one who has to show they can do it and get it.
Until some results are displayed, this will and has been drifting lower.
If everything goes as planned, longs should not worry about this drift lower - they are comfortable with what they own and where they believe this will be.
Traders are the ones worried.