My question is if quantshare has data for companies that aren't listed anymore or don't exist anymore.
I thought about doing a historical simulation. For that, it needs to have historical data but not only of the current tickers.
My question is specifically for Analyst downgrades and upgrades data, but it would also be interesting for other kinds of data.
It is important to understand that QuantShare does not provide any data. Downloaders you can find on the sharing server are shared either by us or by QuantShare users. These items retrieve data from different websites (usually data providers that offer data free).
I am not aware of any item that get analyst downgrades/upgrades for delisted companies.
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