In the following video, Fool contributor Matt Thalman discusses why TD AMERITRADE (NASDAQ:AMTD), Charles Schwab (NYSE:SCHW), and all the other online brokerage houses offer investors high-tech trading platforms and services that are intended and sold to help individuals find opportunities others haven't yet seen.

While following chart patterns and trying to turn profits on a small daily moves may sound like a great idea, over the long run, most investors will end up losing more money than they make. But more importantly, every time investors buy or sell a stock, they pay a transaction fee, which will surely eat into any profits the average Joe day trader can make.

So whom are these trading platforms really making money for? Watch the video for more details.