Since Build 940 of MetaTrader 4, 90% is maximum modeling quality attainable in backtests without resorting to custom tick data hacks. Now, if I backtest some EA on an M30 timeframe with Every tick model, it shows 90% modeling quality: Check the Experts tab of the Terminal panel to see that the script finished its work successfully:ġ2. Here, you see it set for M30 conversion:ġ1. Run it on the chart, setting the Period multiplier factor depending on the timeframe you need for your test. Find the PeriodConverter script in Scripts via Navigator panel (it is a default script provided by MetaQuotes). Go to File->Open Offline and open the M1 chart you just downloaded the data for:ġ0. After the download process ends, you will see some M1 data there:ĩ. Click Download - a warning message may appear (click OK if it does):Ĩ. Double-click the M1 timeframe for the currency pair of your choice (it should show empty data):ħ. Go to MT4 History Center ( F2 on your keyboard) to download 1-minute historical data for every currency pair you want to test your expert advisor on.Ħ. Adjust the MetaTrader options to allow more bars in chart history via Tools->Options->Charts:ĥ.

Open the history subfolder in the platform's data folder and delete everything there (the actual contents of your history folder may differ from those you see on the screenshot):Ĥ.

It will bring up the folder with all the platform's data. Run the newly installed MetaTrader and login to your broker's demo account. To download an MT4 installation, I recommend choosing one of the MT4 Forex brokers because you no longer can download MetaTrader 4 from the official MetaQuotes website.Ģ. Be advised that a good MetaTrader historical data take up a lot of disk space - expect it to take up about 1 GB of free space per two years of data. Download a new MetaTrader 4 installation and install it in a separate folder. It is recommended to use a separate installation of MT4 to set up quality backtesting data there and to avoid it being overwritten with potentially flawed broker's data.ġ.

Period converter metatrader