Topic: Which price data does tester based on? (Ask or bid)

I know this is little thing.
But If we can choose data for fsp pro or ea studio?
Should it come from ask or bid price?

thank

Re: Which price data does tester based on? (Ask or bid)

It always uses Bid data. MT charts are based on Bid and the exported files are correspondingly based also on Bid. This is important for the backtester engine for calculating the exact deals prices. It uses Bit based on the data and calculates Ask = Bid + Spread.