The cash balance available in your account is too low. Please deposit more funds or reduce the value of the trade.
You have pending open orders that if executed will need cash if they increase your exposure. Therefore the system reserves cash to place that trade. Please check your pending orders.
Cash Buffer. Saxo reserves a cash buffer before any trade execution. The buffer is to ensure you have sufficient cash to cover commissions/fees as well as ensuring that you will not go into negative in case of a market gap.
Market orders, placed while the market is closed
They might be rejected due to the fact that the system will calculate an additional cash buffer, based on the instrument's risk rating, that must be available in order to buy shares. Please place a limit order instead in such case, as the limit price will provide a maximum purchase price.
The last one is relevant for trading cash instruments - stocks, bonds, and ETFs. Please read more below.
Before the system allows any client to submit an order, there are a few pre-checks in place. These pre-checks try to ensure that clients:
Do not trade themselves on margin.
Will have a positive cash balance in case the order gets executed.
Have a positive cash balance in case the order is executed, and there will be sufficient cash balance so that all of the positions can subsequently be closed at a later point.