[sgbuffett]

Very high risk due to leverage. How to settle if the contract is closed when still no trading?

The leverage is what you choose ....you don't have to use all your cash in the trade.

You can technically aim for zero leverage by having  cas hfor yhe entire contract but problem is CFD forces you to borrow even if you have cash for the whole contract...theh will only take some of your cash and borrow the rest to charge interest....when it goes against you your cash is used to maintain margin requirements....