Some Questions for experts on historical price Data?

N

Nana Trader

I have two questions:

1-Why Historical data providers charge higher price
for 1 minute intraday compare to 5 minute intraday?

we all know that 1minute bar can be converted to
5 minute bar and higher , So what is wrong with
breaking 5 min bar down to 1 minute bars? Will
these cause any inaccuracy when testing?



2-Which Data feed has longest historical data that
can be downloaded into products like Qcollector
from mechtrading.com (www.quotelink.net collects
realtime data, not historical).
Problem is Esignal provide 120 days intraday history
http://www.esignal.com/esignal/features/featureslist/data.asp
while what tradestation offers is beyond compare to
Esignal. http://www.tradestation.com/strategy_testing/hist_market_data.shtm
So is there a way that you can automate hundreds of
symbols at a time with Historic intraday data to be
loaded into excell program after market closed each
night?



3-HistoryCentre 3.0 for TradeStation/ProSuite 2000i http://www.pcharts.com/hist/hc/
Does anyone using this product, how long will it take for
each symbol historic intraday data get loaded directly into
TS2000i (i mean without having to convert to XPO then
import into global server)?
And how does TS2000i can integrate with any ASCII data
for direct import, because above site seems hasn't mentioned
anything on this?
 
Quote from Nana Trader:

I have two questions:

1-Why Historical data providers charge higher price
for 1 minute intraday compare to 5 minute intraday?

we all know that 1minute bar can be converted to
5 minute bar and higher , So what is wrong with
breaking 5 min bar down to 1 minute bars? Will
these cause any inaccuracy when testing?
More...

Nana:

I'll answer the easy one. You must have had a bad morning. Assume a stock trades as follows:

All are Open, High, Low, Close. Stock trades are reported by minute, not by tick.

1, 3, 5, 5
5, 5 ,5, 5
4, 4, 2, 2
2, 2, 2, 2
3, 3, 1, 3

A 5 minute report would be:

1, 5, 1, 3

There is no way to reconstruct the one-minute data from the 5 minute date. Obviously the reason the data provides charge more is that you are get five times the data.
 
Sure, i had a bad morning, :) i was thinking of 5minutes
worth of tick data which could be break down to 1 minute
interval.

Thanks, Question one is answered, please proceed with
next two questions
 
Any ideas on 2nd and 3rd question?

Another question?
About OwnData 2.1 for TS 8
http://www.traderssoft.com/rt
--------------------------------------------------------------------------------
OwnData 2 is the second generation of unique software that allows you using third party data in TradeStation 8. OwnData 2 opens eSignal, Interactive Brokers (TWS), Patsystems (J-Trader), TradeStation2000i GlobalServer, CyberTrader, Universal DDE, ASCII (plain text) and other data sources to you. It allows you importing ASCII files to native TradeStation 8 data and gives you a backup in case of any problems with the TradeStation Securities feed.

How reliable this software is, If you don't have to use
TS data feed? Anyone uses it?
 
Hello all

QuoteIN add-in new Beta version is able to download 10 days intraday minute from MarketFeed. It is still Beta version but has near release quality. The way it is implemented is unique since it works from within Excel. Feel free to contact support@quotein.com for more information.
 
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