Nanosphere (NSPH) Hits New 52-Week Low

Nanosphere (NSPH) made a new 52-week low today (02014.04.28) and that really sucks for the GDT::Portfolio. Nanosphere doesn't release 1Q'14 results until May 7th, so I don't think that is the reason for NSPH being some a bad investment. I placed a GTC order to buy some NSPH at 0.5 $Pi ($1.57).