Support Board
Date/Time: Tue, 22 Apr 2025 11:49:37 +0000
Cumulative Delta Bar (Up/Down Tick Volume) versus Cumulative Delta Bars (Volume) studies
View Count: 312
| [2025-01-23 10:34:02] |
| Dan the Man - Posts: 92 |
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Hi, I'm confused as to why there are different scale values between Cumulative Delta Bar (Up/Down Tick Volume) and the Cumulative Delta Bars (Volume) studies. There are both Delta's. Which one is correct? Is there a relationship between the 2 studies? Does one "led" the other? I attached a screen image. Both are set to day and night session opens. You can see the different scale values Kind Regards, |
 CD Delta Bar Volume versus CD.png / V - Attached On 2025-01-23 10:30:18 UTC - Size: 129.99 KB - 75 views |
| [2025-01-23 12:25:55] |
| Sébastien - Posts: 58 |
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Hi, Here is the difference between the two : Cumulative Delta Bars - Up/Down Tick Volume The difference between the Uptick volume and the Downtick volume is calculated during the creation of each bar. Uptick volume is the volume that occurred at a higher trade price than previously. Downtick volume is the volume that occurred at a lower trade price than previously. If the last trade price does not change, then it is considered an uptick if there was previously an uptick or a downtick if there previously was a downtick.
Cumulative Delta Bars - Volume The difference between the AskVolume and the BidVolume is calculated during the creation of each bar. The definition of AskVolume is the volume of trades that occurred at the best Ask price or higher. The definition of BidVolume is the volume of trades that occurred at the best Bid price or lower. If a trade occurs between the Bid and Ask, there is a special algorithm to assign the volume either to the Bid side or the Ask side. In this case, this is based upon whether the trade is an uptick or a downtick. During the creation of a bar, the volume of trades at the Ask is accumulated and the volume of trades at the Bid is accumulated. So in this step, the current difference between total AskVolume and BidVolume for a bar is calculated the time of the trade.
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| [2025-01-23 15:16:39] |
| Dan the Man - Posts: 92 |
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That is just the Sierra chart description. If both studies have the same session start the delta's should end up being the same on the value scale. Which one is correct? Is there a relationship between the 2 studies? Does one "lead" the other? I attached a screen image. Both are set to day and night session opens. Why is there a difference in scale values. One study could be positive and the other negative. Again, which one is correct? |
| [2025-01-23 16:47:36] |
| John - SC Support - Posts: 39395 |
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They are both correct. They measure two different things as given in the descriptions. Not all trades that occur at the Ask are going to result in an Up Tick and not all trades that occur at the Bid are going to result in a Down Tick. For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing |
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