Biotech Values

[Whalatane]

With respect I'll disagree re " logically immaterial to your decision to hold "

There will always be known unknowns as well as unknown unknowns around a decision to buy a stock.
If I'm buying the stock I feel I have researched it enough / followed it enough to understand its business plan , its execution of that plan and know its delta re general market movements.

So having gone thru that ground work I know that I will not know everything but will have a range I can live with.
If it drops below that range ( ie down 20% for example ) I conclude theres something I've missed and re evaluate my position .

Just what works for me
Kiwi