Hi,
You can use the instrument identifier conversion formula (provided by Excel Price Feed) to convert an ISIN to a ticker (that is recognized by Yahoo Finance).
For example, this formula: =EPF.ID.ISIN.To.Ticker("US0378331005") will return "APPL" as this is the ISIN for Apple stock.
You then use this ticker with historic close formula: =EPF.Yahoo.Historic.Close("AAPL","31 Dec 2024") which retrieves the close price for 31 Dec 2024.
I hope this helps.
Kind Regards,
Andrew Sinclair
Coderun Technologies Ltd