Looking for historical earnings dates for ALL NYSE/NASDAQ companies going back a few years. Matching to large dataset for modeling so not looking for methods to get just a few tickers. Found this on Quandl: https://www.quandl.com/databases/YEEH. But seems really pricey for just some historical dates. Any alternatives would be appreciated.
Wall Street Horizon has this data. I subscribe to their current data, but I have no idea on the cost of their bulk historical data.
%% investing.com goes back 2 years. IBD daily/weekly goes back farther; but it requires a subscription,or log in........
Warning: not all event history is the same.. a 30 second primer... http://info.wallstreethorizon.com/secret-excerpt