How can a personalised ex-post disclosure of costs of the fund be made, if the client buys and sells a fund during the business year?

How does a firm fulfil the obligation to report if the values of a client’s leveraged financial instruments or contingent liability transactions depreciate by a 10% threshold on a particular business day, if a firm’s automated systems do not provide valuations throughout the day for all the instruments held?

When fulfilling the obligation to report on a portfolio depreciating by the 10% threshold, does the firm need to report if a portfolio value drops by more than 10% as a result of the client making cash withdrawals?

Where execution venues and firms publish reports as required under RTS 27 and 28 , how long should the reports be kept in the public domain and freely accessible?

Where firms use a single venue, how can they evidence that this has allowed them to obtain best execution?