A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Sorry to tell you this, but "Stock" data type is one of the features limited to Office 365. It is NOT part of Office 2019.
When MS created the Office 365 "subscription" type of license, MS decided to "encourage" people to switch to this new cash cow by limiting "new features" to the 365 offering and not adding them to the one-time payment licenses like Office 2019.