[amibroker] Rules when combining PositionSize with MaxOpenPositions

["Phsst" <phsst@xxxxxxxxx>]

With the following backtest code:

PositionSize = -100/4;
SetOption("MaxOpenPositions", 20);

I make the following assumptions:

I should usually expect to have a maximum of four (4) Open Positions,
each equaling approx. 25% of Equity.

The ONLY exception should be when I have 'Backtester Settings' >
'Portfolio' > 'Limit trade size as % of entry bar volume:' set as a
non-zero value, AND the % of volume specified on the day of the Buy
signal is less than 25% of Equity. (This could result in more than 4
Open Positions.)

Are there any other condition that would result in more than four (4)
simultaneous Open Positions in the backtest?

The reason I ask is that my Backtest with the (MaxOpenPositions, 20)
coded results in a 250% greater Net Profit versus when I have it
commented out.



Rgds,