亿万富翁交易员保罗·都铎·琼斯（Paul Tudor Jones II） 在接受励志演说家托尼·罗宾斯采访时讨论200日均线：
One principle for sure would be: get out of anything that falls below the 200-day moving average.
I teach an undergrad class at the University of Virginia, and I tell my students, “I’m going to save you from going to business school. Here, you’re getting a $100k class, and I’m going to give it to you in two thoughts, okay? You don’t need to go to business school; you’ve only got to remember two things.”
The first is, you always want to be with whatever the predominant trend is. My metric for everything I look at is the 200-day moving average of closing prices. I’ve seen too many things go to zero, stocks and commodities. The whole trick in investing is: “How do I keep from losing everything?” If you use the 200-day moving average rule, then you get out. You play defense, and you get out.