TICK delay

[Marcelo Martinez <marcelom@xxxxxxxxxxxxx>]

RT's:

Does anyone know if there is a lead/lag between intraday TICK data , say
5 min bars and indices like OEX ?

I'am seriously thinking about getting intraday software to better time
my option entries. I use Schwab and I just started looking at their
intraday charts which show a definite lead of the TICK data to the OEX
data ; but, it doesn't seem right ! or does it ?

Thanks for the response,

Marcelo