Historical Data - Historic Data

Hi,

I love the site. I have been trying to wrangle similar data to do something similar, but for historical data for backtests. Do you keep historical data? Is there a membership for access to that?

Dear ShortGraham,

GrahamValue sources all financial data from Finnhub, which has far more data available than is used here. Please see Customized Stock Screening to understand the various options to access their database.

Thank you for your question!