NQ 1min v. Tick data discrepancies

[joe flapjack]

Originally posted by ArchAngel
I'm looking at the NQ data (on Quote.com though) and it shows a 1419.50 trade at 9:39:16am ET which is probably what you're seeing.

Curious. On E-Signal it is 8:39:46 (CT) not :16, but yes, that is the one.

Originally posted by ArchAngel
If Metastock isn't showing it, it's probably a problem with it rather than the datafeed. Were you connected to the same physical server when you looked at it in MS vs. the normal eSignal program? if not, it could be a server-specific discrepancy. If so, then it's probably an MS bug.

yup, same server.

"Live" in MS it didn't show.

Originally posted by stevet
there are also some issues in esignal data in metastock - one of which is that they use different timing - i can't remember which is which now - but one ends the interval on the stated time, and one starts the interval at the stated time - there is also the fact that metastock compares new data to any old data stored, in order to update any changes - and this can cause some anomalies, and certainly throw metastock into a loop

if i recall correctly, they also build there interval periods from different time frames

The data I used to check MS includes refreshed and cached -- neither showed the 1419.5 tick in the tick chart (both did in 1mn).

Originally posted by rtstrading
... Of course the refreshed data is the corrected data, but that does not help the matter when trying to compare realtime signals with the after-the-fact signals with the corrected data. I have compared my realtime signals vs. the corrected data and the results seem to all wash out about the same over a given period of time.

That is what is odd to me -- refreshed, "corrected," realtime -- none showed 1419.5 in MS tick.

Originally posted by rtstrading
I am using one minute data. This one minute data that is maintained in the Metastock realtime data cache is used to determine 5, 10, 15, 30, 60 minute bars for charting purposes.

Maybe that is the key: MS employs 1mn data for everything > 1mn while the tick data is somehow sourced or interpreted differently.

-- thanks all for the help

 

[Kicking]

I use Nextrend and Quote.com (LiveCharts) for the emini's I noticed for the past couple of days many discrepancies between the two on 1 min. charts. I am trying to determine which provider I should rely on for the 1 min. chart. Can anybody using one of the better provider (eSignal, CQG) post a 1 min.chart of ES (or NQ) for the last crazy afternoon for ex.?
Thanks

 

[NihabaAshi]

Originally posted by tntneo
...many, many charting package are not reliable for 1mn candles...

tntneo

I keep seeing discussions about the 1min interval chart concerning any particular data vendor.

My personal experience...since my trading is based on Japanese Candlesticks combined with other indicators and chart patterns....is that if there are problems with the data providers 1min chart...

you'll most likely see problems with the 2min, 3min, 4min and 5min charts,etc.

However, concerning eSignal, I have reviewed missing data (Open and Close) on higher intervals than the 1min chart.

Thus, I can see the issue about the 1min chart...yet, when you see missing data on higher time frames which results in horizontal bars (High and Low only)...

there is a problem regardless to the cause of such a problem.

eSignal has admitted there was such a problem and that they are currently going to resolve such a problem in their next release (bug fixer).

Therefore, if the interval is 1min or a daily chart and it's some sort'uv a Doji candlestick (Open = Close)...the odds are high that you will not see a Doji...instead you'll see what looks like a horizontal bar...regardless to the time interval.

It is possible that many traders that use eSignal do not use it with the Japanese Candlestick chart setting and instead are using it with the Bar setting...reason why I've seen posts that say eSignal charts has not given them any problems.

Luckily for me I use several different data vendors and am not dependent upon one source.

With that said...as I mentioned on another thread I started here...all data vendors have their advantages and disadvantages.

Simply, what works great for one trader...may be a poison to another trader depending upon their trade methodology.

Nihaba Ashi

 

[NihabaAshi]

Originally posted by Kicking
I use Nextrend and Quote.com (LiveCharts) for the emini's I noticed for the past couple of days many discrepancies between the two on 1 min. charts. I am trying to determine which provider I should rely on for the 1 min. chart. Can anybody using one of the better provider (eSignal, CQG) post a 1 min.chart of ES (or NQ) for the last crazy afternoon for ex.?
Thanks

Kicking,

I'm a user of QCharts and a former founder of one of their large user groups...(non-sponsor by QCharts)...

have you compared LiveCharts to QCharts? You'll really start seeing different data for the same time frame.

Also, at least with QCharts (Quote.com)...depending upon what server your on (Sterling, Boston, Snyvale)...you'll see different data regardless what interval your using...more noticeable below the 10min interval.

I can't remember if LiveCharts (Quote.com) uses a different server than QCharts...hmmmm.

Here's a 1min interval chart you requested on the NQ via QCharts and eSignal...I'm not sure how to get 2 attactchments in the same post).

I'll include one in this post and the other in my follow-up.

Nihaba Ashi

 

[NihabaAshi]

QCharts via Boston server.

Nihaba Ashi

 

[traderfut2000]

Nihaba,

I really found the charts you sent very nive. I for myself am usibng cqg and the charts are crap compared to the one of qcharts. I intend to trade full time Us stocks and will certainly shift to qcharts or esignal or even both. many people in the forum are killing qcharts usually it is a good sign since it is good to be against the herd but may be there are also some truths.

So basically what would you advise me working with qcharts as the main data and chart providewr and something like esignal for a back up or esignal alone combined with Linnsoft or only qcharts and the data feed of my borker as a back up??????


By the way I already used qcharts one year ago and found it terrific, esignal disappointed me and as you said in another thread their graphs sucks and cqg is not only expensive but sometimes unreliable and the candle charts don't display a history as as important as the one displayed on qcharts.


Thanks for your anwer

Trader Fut

 

[Kicking]

Thank you very much NihabaAshi, it was very helpful.
The charts from eSignal, QCharts and LiveCharts were identical. So I guess the discrepancies must come from Nextrend . Can you adjust the thickness of the candles on these packages? I much prefer the candles on LiveCharts, on the Qcharts attach. you posted I can hardly distinguish the doji's there is no space between a doji and the preceding candle.