Backtest over weekend - offline mode?

[TraderEA6]

Hi,

I am doing backtest and with optimization with years of data, it will take a long time and may even run over the weekend. As the spread will widen when the market closes, i am thinking to cut off the internet on the machine to prevent the MT machine from taking in the updated spread when the market closes. This machine is only for MT use so no internet is fine for me.

Question - If I run the backtest and while it is running i disable the internet connection. Will it still be able to complete the full test? My understanding is that the historical data are downloaded and it will use the last updated spread so without an internet connection, it should still run but I like to hear from those that had done it.

Thank you

[roar]

@traderea6 yes, offline should work ok if the data is downloaded beforehand.

However, if you use mt5, I dont think weekend testing is a problem since the tester uses documented spread for each candle anyways: