I am curious what hours your broker lets you see the NBBO
or order book for Instinet ECN
my broker gives me access to Instinet from 3 am to 6:26 pm
approx EST
I have seen their NBBO quotes sometimes earlier than 3 am
and it seems Instinet might have different hours according to their website
"Instinet adheres to the following trading schedule:
Trading ends at approximately 6:40pm EST and all orders are purged from the system.
Trading begins again after approximately 5 minutes at 6:45pm as the next trading day.
Friday evening from approximately 6:40pm to Sunday evening at approximately 7:30pm orders will not be accepted by the system but stocks may be quoted."
or order book for Instinet ECN
my broker gives me access to Instinet from 3 am to 6:26 pm
approx EST
I have seen their NBBO quotes sometimes earlier than 3 am
and it seems Instinet might have different hours according to their website
"Instinet adheres to the following trading schedule:
Trading ends at approximately 6:40pm EST and all orders are purged from the system.
Trading begins again after approximately 5 minutes at 6:45pm as the next trading day.
Friday evening from approximately 6:40pm to Sunday evening at approximately 7:30pm orders will not be accepted by the system but stocks may be quoted."