Support Board
Date/Time: Tue, 25 Feb 2025 17:17:35 +0000
Inconsistent POC?
View Count: 1370
| [2021-04-15 17:52:12] |
| User740709 - Posts: 153 |
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Hello, I am attaching a screenshot of 1) 60min VbP chart and 2) 7.30min VbP chart If you look at the last candle on 60M which is for 8:00 and look at the POC, (the yellow rectangle) it is at 173.87 If you look at the 7.30 candles for the whole 60M, you can see that the developing POC (study used is the VbP - VA, POC, VWAP lines only) ended at 173.84 for the whole 60M. Could you please have a look at the difference? Is there a reason for that? Thank you. |
 inconPOC.png / V - Attached On 2021-04-15 17:52:03 UTC - Size: 121.92 KB - 325 views |
| [2021-04-15 18:00:44] |
| User740709 - Posts: 153 |
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I have one more question. Please find attached another screenshot, both charts are 7.30 minut: 1) First is a bar chart and it includes the Large Volume Trade Indicator set to show dots for trades above 249. The dots are visible before the crosshair (16:00) but not after. 2) Second is are numbers bars filtered in the Chart Settings to exclude trades less than 249. The crosshair is at the same spot there (16:00). As you can see, eventhough there are filtered trades on the numbers bars chart, the dots are not showing on the bar chart. That was the time when I closed Sierra Chart. Could you please have a look at the reason why it is that when Sierra Chart is closed and then opened, the Large Volume Trade Indicator does not show the dots despite the large trades that were there? Thank you. Kind regards, Hana |
| missing dots.png / V - Attached On 2021-04-15 18:00:37 UTC - Size: 36.08 KB - 262 views |
| [2021-04-15 18:23:16] |
| John - SC Support - Posts: 38163 |
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Please attach both sets of charts in separate chartbooks for us to take a look. Follow these instructions to get the charts by themselves, but be sure you include both charts in each chartbook, not just one: Support Board Posting Information: Providing Chartbook with Only a Single Chart For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing |
| [2021-04-15 18:37:41] |
| User740709 - Posts: 153 |
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Thank you. Here is one chartbook with missing dots (you need to find the spots that do not correspond - I am sorry I do not remember the times when I closed your platform). The other chartbook is with the inconsistent POC. Thank you. Kind regards, Hana |
 MissDots.Cht - Attached On 2021-04-15 18:37:30 UTC - Size: 10.21 KB - 435 views InconPOC.Cht - Attached On 2021-04-15 18:37:36 UTC - Size: 16.48 KB - 411 views |
| [2021-04-15 19:40:20] |
| John - SC Support - Posts: 38163 |
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The chartbook for the Inconsistent POC does not have the data you were referring to. The 60 minute chart does not have any study on it that has a POC (i.e. no VbP or Value Area Lines studies). The other 7.5 minute charts only have VbPs set to 1 day. If you can redo the charts and ensure they have the studies as you had them setup, then we can take a look and see why the POCs are different. ------------- With regards to the inconsistent Large Volume Trade Indicator dots, we only found one small issue, which was that your filtering for the Numbers Bars chart is set to 249, but the filtering is doing a "less than or equal to" filtering, so that should be set to 248 in order to get the same data as the Large Volume Trade Indicator set to 249. But, that just changed 1 dot that we could see. Once we changed that item, everything matched exactly between the two charts. The only thing we can think is that perhaps the dots are hidden by another study on that chart. Make the size of the dots much larger to ensure that you are seeing them. We also set the Chart Draw Type to Blank in order to remove the candlesticks to be able to better see the dots. The more interesting thing is that the data is very different from the image that you show. We see only a few trades that make it through the filtering in the Numbers Bars. What is your Intraday Data Storage Time Unit set to? Refer to the following: Data/Trade Service Settings: Intraday Data Storage Time Unit (Global Settings >> Data/Trade Service Settings >> Common Settings >> Common Settings) Make sure this is set to 1 tick, especially since you are looking at the Numbers Bars. For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing |
| [2021-04-15 19:53:33] |
| User740709 - Posts: 153 |
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Thank you. I am resending the InconPOC chartbook again. THe 60 min is numbers bars with POC highlighted in yellow. THe 7.5 min is numbers bars with developing POC. With regards to the missing dots, the issue only appears when I close Sierra Chart and open after some time. The dots do not display for the period that Sierra Chart was closed. I.e. the dots are not there if Sierra Chart was not running. So you cannot see it if you do not try to have it opened on your end during periods of normal trading (in FGBL) - which is not now (we are nearing the close and there are not larger trades). Yes, my intraday data storage time unit is set to 1 tick. Regards, Hana |
| InconPOC.Cht - Attached On 2021-04-15 19:53:27 UTC - Size: 9.9 KB - 369 views |
| [2021-04-15 20:19:59] |
| John - SC Support - Posts: 38163 |
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The dots do not display for the period that Sierra Chart was closed
Ok, we did not understand this. Although it is also confusing, as the study should run after the data is loaded. When you see this again, select the "Insert" key on your keyboard, this will force a recalculation of the data. Let us know if the dots show up after that or not. We will look into the POC issue and get back to you on that. For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing |
| [2021-04-15 20:21:13] |
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You must also use the Denali Exchange Data Feed and not CQG data for the proper data for these studies: Denali Exchange Data Feed Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
| [2021-04-15 21:09:52] |
| John - SC Support - Posts: 38163 |
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With regards to the POC, you are looking at two different timeframes for the POC in the two cases. In the 60 minute chart, you are looking at the POC for the 60 minute period. But in the 7.5 minute chart, you are looking at the developing POC over the course of the entire day. The only time these two values would be the same is during the first hour of the day as defined by the Session Times.
For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing |
| [2021-04-16 06:28:33] |
| User740709 - Posts: 153 |
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Thank you, yes exactly. From the very first attached picture you can see the 8:00 candle for both 60 min and 7.5 min. As that is the first highest volume candle of the day and nothing traded at those price levels on that day before, I would assume that the 7.5 min developing POC will end up at the same level as the 60 min numbers bars POC. Where is my logic incorrect? Thank you. Kind regards, Hana |
| [2021-04-16 16:11:49] |
| John - SC Support - Posts: 38163 |
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Your Session Times start at Midnight (00:00). So the only time when the two items would match would be between the bar at 00:00:00 in the 60 minute chart and the developing POC at the bar at 00:52:30 in the 7.5 minute chart. Otherwise, each 60 minute candle has it's own POC. And the 7.5 minute developing POC is based on all the previous bars starting at the Start Session Time. For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing |
| [2021-04-16 18:42:20] |
| User740709 - Posts: 153 |
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Yes, I understand that. However, the 60 minute candle is the first time the price traded at that place on the given day and the volume is huge compared to previous candles since that is the European open. To illustrate my point, I am attaching a screenshot of January 13, 2021 (same as the very first screenshot in this thread) as well as a chartbook with a 7.5 min bar chart with a custom developing VP I write about below: If you scroll to January 13, 2021 in the chart in the chartbook (which in the screenshot is the chart on the right), you see a custom (developing) volume profile for the given day from its overnight open (i.e. from 1:15 CET) to the end of the 60 min candle that starts at the European open (8:00). As you can see, the developing volume profile on the candle chart from the very open on that day shows POC at 173,87 (crosshair white line, pink line in the developing volume profile). On the contrary, the developing POC on the numbers bar chart shows developing POC at 17384. Those two POCs are inconsistent even though they are both developing from the very open at 1:15. Why is that so? Thank you. |
| devVP.Cht - Attached On 2021-04-16 18:40:44 UTC - Size: 12.77 KB - 403 views |
| [2021-04-16 19:49:03] |
| User740709 - Posts: 153 |
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I am also attaching the most actual screenshot from todays European morning. Simple counting is sufficient here: The top chart is the 7.5M bar chart so that you can see how the chart developed from the start at 1:15 AM CET and that before I started to count, nothing traded at the mentioned prices. The bottom chart is 7.5 numbers bars that include unfiltered volume numbers. The blue DPoC (developing POC from the VbP study) is marked at 171.18 that consists of volume from 7:37:30 and 8:00 as this price level traded only during those two bars. The total number traded is 437+37+604+847=1961. However if you just look at one price below, i.e. at 171.17, the total volume is 264+4+41+1838+2100=3792 which is more than twice the volume traded just one price level above. Despite that, 171.18 is marked as DPoC. Thank you. REgards, Hana |
| devPOC.png / V - Attached On 2021-04-16 19:48:58 UTC - Size: 77.13 KB - 250 views |
| [2021-04-16 21:30:24] |
| John - SC Support - Posts: 38163 |
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The only thing we can tell you is that when using our data feed, the data is correct and the indicators are showing the correct information based on the data. We really can not do any further analysis, as to give you an example, at the price of 171.17 through the 08:00 bar, we have a total volume of 4247. Additionally, at the 08:00 bar, the Developing POC is showing as 171.17 for us. We really recommend trying the Denali Exchange Data Feed to see how it can make a difference. For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing |
| [2021-04-17 07:51:33] |
| User740709 - Posts: 153 |
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Well, just one more question. What is the difference between Denali datafeed and your historical datafeed? Because as you can see from the attached picture, connecting to your historical datafeed (which I would expect is based on the Denali datafeed) I can see slight differences in the numbers on bid and ask but the totals are identical and the developing POC is at same location as I have it with my datafeed, i.e. at a different price than the highest volume level is for the day. Also, I just watched it on fast replay and it seems that once the developing POC forms in a bar, it does not change even though the bar has not yet finished and even though the POC shifts within that same bar. Thank you. Regards Hana Date Time Of Last Edit: 2021-04-17 09:04:48
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| devPOCSC.png / V - Attached On 2021-04-17 07:51:28 UTC - Size: 84.78 KB - 258 views |
| [2021-04-19 13:48:20] |
| John - SC Support - Posts: 38163 |
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The historical data you are getting is the same data as the Denali Exchange Data Feed. To ensure you have the the correct data, you would have had to select the option Edit >> Delete All Data and Download. If you did that, then you should have the correct information. In terms of the POC, you would need to analyze the specific situation. We looked at the time frame you gave us previously and everything looked correct. In terms of the replay, it depends on what replay method you were using. To ensure that the calculations are performed in the same way as real-time, you would need to use the Replay Mode of "Calculate Same as Real-Time". Refer to the following: Replaying Charts: Replay Mode For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing |
| [2021-04-19 14:03:13] |
| User740709 - Posts: 153 |
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Thank you. Yes, whatever I do, if I add two VbP studies to the charts, one with Draw Mode as Volume Profile, the other with Draw Mode Lines only, the results differ. But you can disregard it now. I found a workaround that works. All the best, Hana |
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