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I would like to know the fastest way to find the earliest listing date of a given symbol on the New York Stock Exchange - for example,

FinancialData["AAPL", All][[1,1]]

returns

{1980,12,12}

Which is correct, since AAPL was first listed on the NYSE on 1980/12/12.

This method is extremely slow, however, given one has to get the entire time series for a company in order to access its first element. Is there a faster way to do this?

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FinancialData["AAPL", "IPODate"]

{1980, 12, 12}

FinancialData["GE", "IPODate"]

{1892, 6, 23}

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  • $\begingroup$ Thanks! Is there a general way to do this for all financial time series given by Mathematica, rather than just stocks? The above solution works for "AAPL", but returns Missing[NotAvailable] on an ETF such as AAXJ. $\endgroup$ – Brian Burns Dec 14 '18 at 19:11
  • $\begingroup$ @BrianBurns, I don't know a general way that for works for all FinancialData seris. $\endgroup$ – kglr Dec 14 '18 at 19:27

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