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Date/Time: Mon, 23 Mar 2026 07:40:26 +0000



Not Urgent : SPY-NQTV.dly data point error

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[2026-02-05 14:22:40]
User837706 - Posts: 16
Hi,

The file for SPY-NQTV.dly has an error on

2026-02-02
The OHLC is wrong for the Low of the day.
Either by a factor of 10,
or a misprint.

Another feed has the low of the day for the SPY as 689.42

Not sure if this is an error on your side or theirs.

Cheers
image2026-02-05 14_15_28-J__SierraChart_SierraChartInstance_2_Dat.png / V - Attached On 2026-02-05 14:22:03 UTC - Size: 96.48 KB - 39 views
[2026-02-06 23:04:15]
Sierra_Chart Engineering - Posts: 23299
This is actually a value which has been transmitted by the CTA data feed. So it is an error from the actual source, from the industry data feed.

We deleted the low of the day record with this invalid value, but apparently it exists somewhere else and this is very hard for us to track down. We might just manually correct the value in the daily file.

In any case, this will take a little time.
Sierra Chart Support - Engineering Level

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Date Time Of Last Edit: 2026-02-14 08:13:11
[2026-02-14 04:43:02]
Sierra_Chart Engineering - Posts: 23299
There are multiple invalid daily low values from the exchange on that date, that we have to clean up:

  Line 42440: 2026-02-13 23:38:45.732 | 2026-02-02 16:15:00.042210, DAILY_SETTLEMENT, Date=2026-02-02, FloatValue=695.41, VolumeValue=0
  Line 42441: 2026-02-13 23:38:45.732 | 2026-02-02 16:15:00.042211, DAILY_HIGH, Date=2026-02-02, FloatValue=696.93, VolumeValue=0
  Line 42442: 2026-02-13 23:38:45.732 | 2026-02-02 16:15:00.042212, DAILY_LOW, Date=2026-02-02, FloatValue=69.005, VolumeValue=0
  Line 42443: 2026-02-13 23:38:45.732 | 2026-02-02 16:15:00.042213, DAILY_VOLUME, Date=2026-02-02, FloatValue=0, VolumeValue=77975410
  Line 42444: 2026-02-13 23:38:45.735 | 2026-02-02 17:05:00.042177, DAILY_SETTLEMENT, Date=2026-02-02, FloatValue=695.41, VolumeValue=0
  Line 42445: 2026-02-13 23:38:45.735 | 2026-02-02 17:05:00.042178, DAILY_HIGH, Date=2026-02-02, FloatValue=696.93, VolumeValue=0
  Line 42446: 2026-02-13 23:38:45.735 | 2026-02-02 17:05:00.042179, DAILY_LOW, Date=2026-02-02, FloatValue=69.005, VolumeValue=0
  Line 42447: 2026-02-13 23:38:45.735 | 2026-02-02 17:05:00.042180, DAILY_VOLUME, Date=2026-02-02, FloatValue=0, VolumeValue=78642877
  Line 42448: 2026-02-13 23:38:45.737 | 2026-02-02 18:40:00.045382, DAILY_SETTLEMENT, Date=2026-02-02, FloatValue=695.41, VolumeValue=0
  Line 42449: 2026-02-13 23:38:45.737 | 2026-02-02 18:40:00.045383, DAILY_HIGH, Date=2026-02-02, FloatValue=696.93, VolumeValue=0
  Line 42450: 2026-02-13 23:38:45.737 | 2026-02-02 18:40:00.045384, DAILY_LOW, Date=2026-02-02, FloatValue=69.005, VolumeValue=0
  Line 42451: 2026-02-13 23:38:45.737 | 2026-02-02 18:40:00.045385, DAILY_VOLUME, Date=2026-02-02, FloatValue=0, VolumeValue=79120414
  Line 42452: 2026-02-13 23:38:45.738 | 2026-02-02 20:04:00.043966, DAILY_SETTLEMENT, Date=2026-02-02, FloatValue=695.41, VolumeValue=0
  Line 42453: 2026-02-13 23:38:45.738 | 2026-02-02 20:04:00.043967, DAILY_HIGH, Date=2026-02-02, FloatValue=696.93, VolumeValue=0
  Line 42454: 2026-02-13 23:38:45.738 | 2026-02-02 20:04:00.043968, DAILY_LOW, Date=2026-02-02, FloatValue=69.005, VolumeValue=0
  Line 42455: 2026-02-13 23:38:45.738 | 2026-02-02 20:04:00.043969, DAILY_VOLUME, Date=2026-02-02, FloatValue=0, VolumeValue=79286521

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, use the Teton service:
Sierra Chart Teton Futures Order Routing
Date Time Of Last Edit: 2026-02-14 04:43:26
[2026-02-14 05:41:01]
Sierra_Chart Engineering - Posts: 23299
This is done. Re-download the data:
Data Errors or Spikes in Charts, Flat or Flat Line Graph, Compressed Graph, Errors with Date/Time Values: 2.2.2: Correcting Data Errors by Downloading the Data Again
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, use the Teton service:
Sierra Chart Teton Futures Order Routing
Date Time Of Last Edit: 2026-02-14 05:41:58

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