With Yahoo Historical quote server, and the ticker TXN (https://finance.yahoo.com/quote/TXN/)
Retrieve from 01/01/1970 to today. (I like to use a very old start date to be sure to retrieve all the available price range)
>> issue: only the date range 28/06/23 > today is retrieved.
Retrieve from 01/01/1975 to today
>> the date range is correctly retrieved.
It seems not a problem with this specific ticker, I've already seen that 01/01/1970 as a Start date is not handled correctly with other tickers.