another slow bleed in a bull market.. This is very frustrating/
Pay attention to the rest of the sector as almost all of these small cap biotechs were weak. Just an opportunity to add to your position should you so desire.
Be patient and look at other promising biotechs companies and you will be fine. SNTA reports #s tomorro really a non event for a co at this stage, but you can get selling due a loss, spooking weak hands.