Under Tools - Settings, Trading Session is from 00:00 to 24:00 by default. At 00:00 market is closed. If we do not adjust that time, we generate strategies in unrealistic market conditions.

I saw that Darwinex for example keeps spreads very very high from 00:05 (opening time on MOnday) until 01:00 (around 150 points) vs daily 30 points for GBPCHF. Opening time is 05:00-24:00. 00:00 must be removed in my opinion from Ea studio Settings!

In addition to the gap you're talking about, would you consider to set by default Trading Session time from 01:01 to for example 10 minutes before closing time?

Also, if there was a more realistic spread from opening time until 01.00 included, some strategies would not be generated.

It's important to avoid misleading strategies and false expectations on EA Studio under fake market conditions (in terms of Time or spread).

Spread of brokers data loaded on EA Studio should be aligned with real spreads of the same broker on Mt5. If it's not, it's not realistic market condition in my opinion.
Example: AUDNZD with Darwinex has default 20 points fixed spread on EaStudio.

On Darwinex MT5, right after midnight (00:04) until 1:00, spreads jumps from 25 points to 143 and more:

If there are brokers with same spread right after midnight, well good to know but are they on EA-Studio? Darwinex should not have 20 pips spread always instead on EAstudio, if it's confirmed that it jumps its spreads between 00:04 and 01:00 included.

ooooooook.

I had viewn 20 points from Custom Settings, so not clear what it is 20 points at this point, if in fact I see from the chart that real spreads also on EaStudio jumps from 20 points to 140 points 
.

To recap: at the beginning you meant that, even with this so high real Spreads on EAstudio, some indicators (like Bollinger Bands) change those 140 points spreads into very low ones?

Hope to read soon good news of having this fixed ;-) Bollinger Bands is one of my preferred indicators.

You're saying that this is the only reason why there's mismatches among EaStudio backtest results and Mt5? Please it would be good to have a complete list of these indicators that have this issue, so that we can avoid to use them while they get fixed as you say you're working on that.

There's always something to learn. So, if I understand, the real tick of Metrader in this case is the real backtest. No ea studio, no the open price mode of MT5.

But, the backtest was not only on Sunday night or Monday morning, but every day of the week. So it seems that only partially the negative real tick backtest is due to the gap, given that you say "usually on Sunday evening or on Monday morning":

thanks, but by applying Max Spread = 50 (always with SL 50 pips and no TP), the EA studio result remain almost the same, as the Open Price mode test in MT5.

The real tick backtest improves, as you forecasted, BUT, the trades are very few and the profit is just +100$ in 2025 vs around +900$ in Open Price.

Now, the big question: is Eastudio backtest more accurate than MT5 Real Tick backtest?

If not, the spread EAs studio imports with the Data Export script from MT5 is the Real Ticks MT5 spread, or the Averaged Bar MT5 Spread you mentioned above?

This happens with the "Bands" indicators, such as Bollinger Bands, Envelopes, and Donchian Channels.

A possible solution, in addition to Max Spread Protection, is to disable trading when gaps are possible during the Trading session like:
- Session open: 01:00
- Session close: 23:00
- Trade on Sunday - off

Here is an example strategy that tests very well on EA Studio and Express Generator for the past year on Darwinex (in fact every broker in the drop down list), but does not give the same results when backtested in MT5 on Darwinex demo account. I'm excluding 22:00 to 02:00 for rollover to not get any hours that would have an average spread lower than reality during the beginning or end of a bar. I'm using "every tick based on real ticks" in MT5, but even 1 minute OHLC gives similar to real ticks for backtest results in MT5 compared to EA Studio website. This strategy has bollinger bands as an entry condition. Try downloading the strategy and comparing EA Studio backtest to MT5 backtest. How do we solve this, other than just disabling bollinger bands and similar banded indicators when generating strategies?

> I uploaded MT5 tick data from my Darwinex-Demo account to EA Studio

Are the MT and the EA Studio backtest results similar now?

We use Darwinex data for EA Studio and Express Generator from: Darwinex-Live through Access Server LIVE MT5 New

You can also use your MT5 data in the Express Generator to create and validate your strategies.

• Export data from MT with the “Data Export.mq5”. (You can download the script from EA Studios, Data Import page.) Set the proper count of bars and commission values in the script's Input.

• Place the files in a subdirectory of ExGen's data directory. For example: C:\express-generator\data\MyData

• Use the directory's name as a server name when running the generator.

node .\bin\gen.js --server MyData --symbol EURUSD --period M15 --max-data-bars 100000