I can't speak for everyone but I know I understand it. NITE is clearly the "Ax" for this stock and has been for some time. http://www.investopedia.com/terms/a/ax.asp By keeping the Ask so much lower than anyone else on that Level II, it keeps it OUT of their hands and fully in HIS. Who would pay .55 when they could pay .175. This keeps the ball in NITE's court.