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Thanks for those suggestions. I'm curious if there are specific data sets that are known to be particularly clean, as I've heard that data cleanliness is a major issue. In fact I see that with polygon.io, there are a number of companies with multiple quarterly reports for a given quarter, with...

I am a programmer, so I'm happy doing all the IT and programming work here. Picking a database etc. is straightforward for me. The $2,000 need only go towards paying for API access or buying database files. My question is just, *which* API or database should I use? polygon.io is a good example...

Hi, I'm looking to create a database of basic financial data for all US securities (or at least, US stocks). It should have at least 5 years of continuous recent data (e.g., from start of 2018 to start of 2023) which for all tickers should include daily data for all trading days (open/close...