[amibroker] s&p 500 data yahoo and IB conflict

["loveyourenemynow" <loveyourenemynow@xxxxxxxx>]

Hi,

I have realized the daily yahoo data for the s&p500 index are quite
different from the spx-cboe-ind provided by IB.
Which source can be trust?
Yahoo opening seems always very closed to the previous day close,
while IB data show a much bigger gap.

Thank

Ly



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