What it covers:
- If a gap or flash move takes the account below zero, the broker writes off the negative balance.
- It applies per account, or sometimes per client across accounts, depending on the broker.
- Professional clients, who often give up this protection.
- Some offshore entities of the same group.
- Losses within the account balance. It only stops losses beyond zero.
Practical points: check which entity your account is with, and whether protection applies. It's usually stated in the client agreement or the key information document.
Does your broker apply it per account or per client?