@ab_trader Thank you, that answers the question.

Firs of all thank you for the awesome library, gret job done!

I'm studying an example with SmaCross strategy from library. I use 10000$ investment cash and PercentSizer = 100 on TSLA stock . What I notice is that at some crossovers the buy order is not issued even though there's enough available cash, please see pic below where the courser is.

If I reduce the PercentSizer to 95, buy/sell orders seems fine. If I understand the sizer well (by def: This sizer returns percents of available cash), there's enough cash to buy many stocks at that point, so why the buy order is not issued?