I would like to confirm two things about the adjusted/unadjusted stock prices data when using get_data:
(1) get_data() function by default returns stock prices that are adjusted for stock splits but NOT for dividends, so that the below two calls return the same data
df1 = ek.get_data("BA", ["TR.PriceClose.Date", "TR.ClosePrice"],
{"SDate": "1990-01-01", "EDate": "2020-07-31"})[0]
df2 = ek.get_data("BA", ["TR.PriceClose.Date", "TR.ClosePrice"],
{"Adjusted":"1", "SDate": "1990-01-01", "EDate": "2020-07-31"})[0]
(2) There is no parameter for get_data that returns prices adjusted for dividends - this needs to be done manually.