This has been around for at least a few years. It's cool, but I'll warn you that some of the data isn't super-clean. IIRC, there were a few daily data holes, an

This has been around for at least a few years. It's cool, but I'll warn you that some of the data isn't super-clean. IIRC, there were a few daily data holes, and even more so in the intraday data However, for the price, it's pretty awesome to play around with.