Is the ‘rule of threes' real? Why it seems there's a pattern to celebrity deaths Is there science behind this persistent theory, or is it all a myth?

Violating the pattern day trading rule can be a costly mistake. Knowing how to navigate these rules is the first step towards successful trading.

Keep in mind that you don't have to borrow on margin to violate the pattern day trader rule. It's a good idea to be aware of the basics of margin trading and its rules and risks.

For example, with a string of digits, a person would assume understand that the digits one, two and three would keep going ad infinitum. The pattern of only one and two would be less clear.