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Fundamentals - Earnings report releases - pre/post market dates?

Hi.

When a company releases its earning report in a given day, that day is registered in the Morningstar Fundamentals as file_date. However, the company can release the earnings report before or after market for the same day. I looked into Morning Star Website some explanation for this and I found none. So, is there anyway to know if the earning report date is pre or post market? Because if it's pre market, it will affect the stock prices of the same day, and if it's post-market it will affect the prices of the next day (I want to do an analysis with this).

Regards,

1 response

I don't know
but I have a question:
Why would file_date_earnings_reports be unchanged for 5 years?
... with different values for each stock ranging from first to second value in:

1399593600000000000  
1559088000000000000  

If those are epoch nanoseconds they range from June 8, 1974 to December 10, 1974.
(remove the last 3 first)
https://www.epochconverter.com/