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Date/Time: Thu, 27 Feb 2025 08:16:20 +0000



Post From: VWAP calculations not matching manual calculations

[2021-06-21 03:18:04]
GGekko - Posts: 4
Hello, I am not able to get the values generated by chart study DAY-VWAP to match my own calculations.
I am using the formula from: https://www.sierrachart.com/index.php?page=doc/StudiesReference.php&ID=108#Volume_Weighted_Average_Price_-_VWAP_-_with_Standard_Deviation_Lines

If I take the first 5 bars: (volume is always 5,000 input is last price)

( 4239.25 x 5,000 ) / 5,000 = 4239.25 (same as Sierra Chart)

(( 4237.50 x 5,000 ) + ( 4239.25 x 5,000 )) / (5,000 + 5,000 ) = 4238.375 (same as Sierra Chart)

(( 4239.25 x 5,000 ) + ( 4237.50 x 5,000 ) + ( 4239.25 x 5,000 )) / (5,000 + 5,000 + 5,000) = 4238.6666666666666666666666666667. Sierra Chart has: 4238.66650390625

(( 4241.25 x 5,000 ) + ( 4239.25 x 5,000 ) + ( 4237.50 x 5,000 ) + ( 4239.25 x 5,000 )) / (5,000 + 5,000 + 5,000 + 5,000) = 4239.3125 (same as Sierra Chart)

(( 4238.25 x 5,000 ) + ( 4241.25 x 5,000 ) + ( 4239.25 x 5,000 ) + ( 4237.50 x 5,000 ) + ( 4239.25 x 5,000 )) / (5,000 + 5,000 + 5,000 + 5,000 + 5,000) = 4239.1 Sierra Chart has: 4239.10009765625

Thank you!!