Agreed, after looking at some data from this month, today's move downward looks like some large selling or dilution of shares happened today.
Fuse may have released a couple million shares today after they reported the news the volume today looks eerily similar to the volume on the 15th when they announced the launch, dilution may have happened here as well.
This does not appear to be have been driven by short selling exclusively as the Short % action today was at the month low.
Fuse will have to dilute a bit to pay for the product launch, further pipeline items, overhead etc. until the revenue base can support the overhead.
Today's action has created a new entry point, I do not think it will stay here long though. It may go down a bit in the morning but if the dilution is done it will go back above .60 shortly after.
Of course this is just my opinion based on what I looked at below. If you see something different here, please share.