In general, when the underlying asset of a CFD pays a dividend or otherwise pays the shareholder, the amount of the dividend payable (in the case of long positions) or owed (in the case of short positions) will be the result of multiplying the dividend by the number of CFDs held, minus a 15% tax withholding.
In the case of dividends on underlying US assets, due to American laws, these will not be paid or debited and the position on the CFDs of these underlying assets will be automatically closed in advance.
With respect to other types of financial events that affect the underlying asset of a CFD, it is important to keep in mind that the position in the CFD on the underlying asset will also be closed before the event takes place. Some of the financial events affected are: a capital increase, capital reduction, issue of convertible bonds or warrants, spin-offs, splits, reverse splits, etc.