Impact Point on Index

[caovanhau1507]

Hi all,

I try to calculate the impact point on Index by using formula:

In Qlik, I calculate the  impactation in 1 Date by expression:

(Listed*Price/sum({$<StockType={'STOCK'}>}total Listed*Price))
*fabs(Price/PriorPrice-1)*max({$<StockID={'VNINDEX'}>}total Price)

the chart:

However, I cannot use this to accumulate by Dates.

Please help me!

Many thanks!