CFDs on single stocks

What are the initial and maintenance margins?
Initial and maintenance margins are designed to protect you against adverse market conditions, by creating a buffer between your trading capacity and the margin close-out level.

The initial margin is a pre-trade margin check on order placement. When opening a new position, in fact, there must be sufficient margin collateral available on the account to meet the initial margin requirements.

A maintenance margin is a continuous margin check and corresponds to the minimum amount of cash, or approved margin collateral, that must be maintained on the account to hold one or several positions. The maintenance margin is used to calculate the margin utilisation. A close-out or stop out will occur as soon as you no longer meet the maintenance margin requirements.