Help with some functions in Google sheets

[Richard.W]

@EquityInvestor

it would be interesting to pull stock values before the Covid-19 market dip, say reference the 20th of February or the 31st of December

=index(GOOGLEFINANCE("AAPL","price","02/20/2020"),2,2)

gives 320.3

=GOOGLEFINANCE("USDGBP", "price", "01/01/2020",500)

gives a list of exchange rates since the start of the year.