How much historical data does Polygon have for financial 10K and 10Q reports?

In 2009, the SEC made the decision to require all financial 10K and 10Q filings to be filed in a new format known as XBRL. These new rules allowed for a more standardized way to report company financials. We have always chosen to source our data from the source of truth for all data. In this case, the source of truth would be the XBRL files. SInce they only began in 2009, our historical record of these 10K and 10Q filings only goes back to 2009. You can read more about XBRL and how we created a standardized system of reporting through our filings in this blog post - New Stock Financials API