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Originally Posted by Eaglehawk
sts98ik,
what were your two brokers?
i understand Aaragorn was having similar troubles, only he got different results from the same broker, interbankfx.
different results from the demo and live.
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I believe the default metaquote MT4 was using a Mig-Demo account and interbankfx a live mini account. Shouldn't we all be simulating a 'common' database where all the prices , ticks and volumes are the same?
I think I might be having the same problem as Aaragorn, same broker same account (naturally same EA, presets, same simulation period/dates) with interbankfx i.e. one day I get one result and another a different outcome . Upon closer inspection, of the visual graphs I did notice that some buy and sell positions were placed on phantom prices sometimes 2-3 pips above/below the current bar (especially if you switch the time period say from M15 to M5). The default symbol i.e. the simulated time period looks fine but the M5 buys and sells may be placed on a phantom prices (within the timeframe of the M15 bar). The backtesting was tested on every tick as oppose to using the 12-point control mode.
I am beginning to wonder if this 'bug' is caused by a price synchronsing problem over different periods or may be an interpolation issue.
Whatever the 'bug' this issue is giving a confidence issue on my EA, as certain times the simulation gives winning results vs other days resulting in losing backtested results. You would assume that running the same EA on the same data period setting etc would give the same outcome.
Warning, please check your results on the visual charts. I hope more people can feedback over this phantom price issue.
Regards