Datafeed Toolbox™ enables data retrieval from the Quandl API. You can retrieve historical data.

First, you must obtain a Quandl API key by creating an account using the Quandl website. Then, create a quandl connection object and retrieve historical data using the history function.

Using Quandl historical data, you can make investment decisions.

For details about the Quandl API, see Quandl Documentation.