Many industries collect and maintain data.  You might think of the shipping industry where large SQL databases are kept to log product inventory and track the number of items shipped monthly or, perhaps weekly.  Despite its bankruptcy, Circuit City comes to mind with its thousands of product lines being shelved every week.  Other warehouses of…

Hi, and welcome to the beginnings of Marketrails, a historical market data-driven service. Here, we use OHLCV data for various purposes including backtesting, analysis, and exploration among other functions. We would like to offer access to a portion of that data, and continually add to that repository over time. Our current product enables download of…