What do you do with your 'cash money' in your portfolio on eToro?

With the money you have made, you can reinvest the profit (dividends) into buying more stocks. Reinvesting dividends is cheap as you won't owe any commission or brokerage free, it is easy and automatic once it is set up. Although it might be appealing to have cash in hand, reinvesting is a good way to grow wealth.