Hi fellow traders,
Yesterday I found out that the level 1 bid and ask sizes for US stocks are incorrectly updated by Interactive brokers. The bid and ask sizes are only updated when either the bid or ask price changes.
I have checked this with the market depth level 2 in IB and when I compared the cumulative sizes on the bid and ask of level 2 with level 1I noticed that the sizes in level 1 are not updating in real time.
I have contacted IB and the helpdesk confirmed that there was a difference between the level 1 and level 2 sizes. They have notified the department and they are looking into it.
So if you are trading also based on level 1 data, please check it with the level 2 data.
I hope you do not have this problem, but if you have the same issue please send a ticket to IB about it.
Kind regards,
thevinman
Yesterday I found out that the level 1 bid and ask sizes for US stocks are incorrectly updated by Interactive brokers. The bid and ask sizes are only updated when either the bid or ask price changes.
I have checked this with the market depth level 2 in IB and when I compared the cumulative sizes on the bid and ask of level 2 with level 1I noticed that the sizes in level 1 are not updating in real time.
I have contacted IB and the helpdesk confirmed that there was a difference between the level 1 and level 2 sizes. They have notified the department and they are looking into it.
So if you are trading also based on level 1 data, please check it with the level 2 data.
I hope you do not have this problem, but if you have the same issue please send a ticket to IB about it.
Kind regards,
thevinman