You may also look at the trade volume data of the ETFs and find out how liquid they are, by visiting stock exchange portals. (relakhs.com)
The realized gain or loss of a sales transaction can therefore be calculated simply by looking at the trading account balance just prior to the sale. (mathstat.dal.ca)
When you are looking at various brokers and how they conduct their business, you need to look at their trading platforms critically. (binarysoftware.org)