Backtesting on MT5 with different demo account
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Hello,
im backtesting on MT5 - account Chimara, with a 100% Quality. Big Profit.
Then I try on MT5 - account Metaquotes, with 100% quality, then its a los.
WHY?
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In the Strategy Tester, there you see ex. EURUSD box next to it ex. M15, then the $ sign, if you push that there comes alot of stuff. Hmm could that be the reason, that something there dont fit. What is the perfect settings there for Testing
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Backtest is not 100% reliable, as you already checked and there can be many reasons. Data quality is fundamental, yes, but the strategy to apply is too. Is it a scalper? If so you need many tests on different data sets to find a common response to it.
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@l-andorrà I noticed of my 6 Robots 1 works on both, its a scalper of a kind. The other real scalpers, loses totally on the Metaquotes, quality 99% on the other where I have a profit, it say quality 100%.
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That means I can never be sure the data I have tested works in that period of time. Of cause nobody know what happens in the future, but if I want a robot for future trading, I need to be sure that it has worked the last 3 years, at least.
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I also tested my 4H robot it was also Profitable, close to the other MT5 test. So scalping robots are bad?

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In general, yes, they are terrible unless checked on demo forward test for a looooong period.
