Jon strongly believes that before you can ever be successful in options trading, you must comprehend the concept of volatility. This is the very heart of understanding which options are worth purchasing and which are worth selling. In "How I Trade Options" Jon Najarian reveals how and why volatility should be the dominant factor in your trading decisions. According to Jon, "this is the single greatest misunderstanding among options traders. This concept alone could be the difference between your success or failure." .