re:"Fair Market Value currently for AVXL? IMHO it's $5.67/share. That's what Wall St thinks ..."
If Wall Street was right all the time, there would be no such thing as undervalued or overvalued stocks. Obviously, that isn't the case.
There is a saying in business that "perception is reality". It isn't the same as "real" reality, but perceptions are the guiding force in human behavior. With stocks, "value" is, functionally, "perceived value". But, peoples' perceptions of things are highly mallable. So, the stock market is a kind of battleground in a constant state of psychological warfare, which is conducted by entities trying to influence sentiments their way, one way or the other, to achieve financial gain.
One can either trust someone else to do their thinking for them, in which case, you have, what may be characterized as "the herd", or the encircling wolves, to choose from, or, maybe try to become savvy, and figure out what metrics to apply for oneself, to determine when "the price is right".
The stock market is all about unreality. Maybe to become savvy one needs to develop skill at being an "unrealist". :)