qb.GetFundamental(qb.Securities.Keys, "ValuationRatios.PERatio");

Above code for fundamental data seems not working. However, below code for price data works flawlessly.

qb.History(qb.Securities.Keys, 360, Resolution.Daily);

The document hasn't cover the examples for C sharp notebook. And I can not find the clue from the source in Lean.

Sorry for my newbie question!

 

 

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