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Quantitative Finance

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    $\begingroup$ Maybe instead of free data sources on the Internet (Yahoo Finance is rather infamous for data quality problems), you should invest in access to something like CRSP? $\endgroup$ Commented Mar 25, 2022 at 11:24
  • $\begingroup$ Splits do not necessarily require an EDGAR filing $\endgroup$ Commented Mar 25, 2022 at 17:22
  • $\begingroup$ But then how to verify there was indeed a split? $\endgroup$ Commented Mar 25, 2022 at 17:35