Impact of incomplete prices on return calculation

Hello,

I have an Allianz life insurance policy invested in funds. Since I cannot find a source to automatically update the daily net asset value (NAV), the prices are created from the monthly payment receipts I receive from Allianz.

Do these gaps in the historical price data affect the MWROR or TWROR calculation in any way? Actually, I know the NAV for each cash flow (purchase in this case) but not at every moment (day) in time.

As long as there is no active in and out cashflow you be good to go. Biggest impact is on volatility, which could be ignored.

When you create reportings, just keep in mind to not report on weekly basis instead of monthly.

All right.

Thank you for your prompt reply!