in my fifteen years of trading, i have come to the conclusion that the NYOB is worthless, not only worthless but deceiving.
Why would someone want to advertise what they plan on doing?
It doesn't make sense and hence the reason it doesn't work. It's a tool for small investors to get screwed, how many times do you see big size on the bid, only to get wiped out, more often than I can recall.
This is all due to the greedy manipulative specialist that runs the NYOB, besides there are two books that you and me aren't entitled to, the other book is for large institutional sizes and is kept secret from retail clients. Wonder why anyone would pay to use a partial service with partial info (not to mention the lag time (five seconds), on refreshing the NYOB.
I have and always will do better trades ignoring the NYOB and concentrating on the prints as price action never lies an execution is real (NYOB is false advertisement).
best,
Oliver