Daily cash sweeps are administrative transfers between your personal flatexDEGIRO cash account and your DEGIRO account. At the end of each business day, a calculation is made to determine if more money has been received on your DEGIRO account, or if more money has been spent.
For example, if you have bought shares for a higher amount than sold, an administrative booking (cash sweep) will take place from your personal cash account to your DEGIRO account. If you have sold shares for a higher amount than purchased, the difference will be transferred to your personal cash account by means of an administrative booking (cash sweep) from your DEGIRO account.
The daily cash sweeps are visible in the account statement by turning off the slider at 'Hide cash movements’.