I'm a total newbie and probably this would be a very silly question
but it came to my attention that some price charts in ASX site are significantly different from charts from Westpac Broking and AFR.com.au
Such as AWB in this quarter, reached $1.5 twice in Westpac Broking chart and trade history, but none in ASX chart
Similar to RIO, which had reached 75 june according to Westpac Broking's chart and trade history
Why is that?