Strategy Tester - Spread. Optimization results useless without spread?

[John Sellmann]

Hello.

 Is it possible to use spreads during optimization/backtesting? 

 I can see that the spreads are loaded in historical data when watching the visualization but the strategy tester doesnt consider the spread. 

[Simon Gniadkowski]

Amion:

Hello.

 Is it possible to use spreads during optimization/backtesting? 

 I can see that the spreads are loaded in historical data when watching the visualization but the strategy tester doesnt consider the spread. 

How do you know this ?  where does it get it's Bid and Ask prices from ?

[John Sellmann]

Is mt5 using a spread of 0 for backtests or not? simple question

[Simon Gniadkowski]

Amion:

Is mt5 using a spread of 0 for backtests or not? simple question

No,  it uses the Bid and Ask from the M1 data.

[Dua Yong Rew]

and there is also random spread and delay too right?

[John Sellmann]

to make it clear... we are talking about backtesting on metaquotes demo server right?

 so does mt5 use bid and ask from m1 also when im connected to my broker? 

[Alain Verleyen]

doshur:
and there is also random spread and delay too right?

Random delay only. I am not aware of any settings about spread.

[Simon Gniadkowski]

Amion:

to make it clear... we are talking about backtesting on metaquotes demo server right?

 so does mt5 use bid and ask from m1 also when im connected to my broker? 

Yes,  of course,  where else would it come from ?