Sometimes you might find a mutual fund on the market making a huge trade on a certain stock. You might see that mutual fund is about to make a sizable sale on a stock causing the value of that stock to dip. This is because a mutual fund might work with a million shares or more at a time. You can take advantage of these trades through a strategy known as high-frequency trading. It is about making quick trades through many markets at any given time. This is an exciting way to make money thanks to how it can come through fast transactions that are out quickly. However, you would have to be extremely cautious when working with such trades while also recognizing the issues that might occur.