I need to find iNAV (intraday net asset value) of some ETFs. Does anyone know is that data available through quantconnect. Otherwise, where is the best place to get historicla iNAV values? I searched a lot, but so far whatever soource I find only contains the ETF prices and not the iNAV.

Historical NAV (inter-day net asset values) data are available but they are not useful for me.

Many thanks,