historical data

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hello, where can I find good ( payable or not) historical data to test my meta trader program.I would like to test it for 5 and 15 min chart for at least 1-2 years.
Is metatrader strategy tester 100%( could be trusted) or when I start live demo trading the results are diferent??!


Thanks.
 
I guess strategy tester can't work the same way as in the live trade (it applies to situation when you make decisions after every tick) beacuse historical data has only 4 values for each bar (in live trade you can have a lot of values for a bar). Although it shouldn't cause big diffrences in results I can imagine situation when sophisticated algorithm would be vulnarable to such a discreet difference. Summing up if your algorithm doesn't use current bid/ask - ST should give the same results as live trade

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Maciej Borecki
 
http://disktrading.is99.com/disktrading sells 6 years of 1m forex data.
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