I can't get Pre and Post market data for US stocks

[martinishots2]

Hi,

I am using the following code to get the Pre-market data for QQQ (4am -9:30am EST):

tmp_df = blp.bdib('QQQ US Equity', dt=date, session='pre')
However, the above statement returns a blank dataframe. Same problem when i change the session to 'allday' or 'post'.

The statement however works correctly if i change the session to 'day' and gets the regular market session data (9:30am - 4pm EST).

Does anyone know how to get Trade/Bid/Ask data for US stocks in the Pre-market session?

Thanks

[ecoo1995]

I'm having the same issue, were you able to solve this?