Market value of positions = stock market value +CFD market value
Net assets = assets you actually own, total market value-total liabilities.
Available funds = assets actually owned-margin for contracts for differences-stock market value
I learned in CMC Markets' education lecture that the available funds will change only when the contract for difference is opened or closed. In the process of holding positions, the available funds remain unchanged, and the available margin and the used margin change with the fluctuation of the market value of the contract for difference.