Trading Numbers, Not Markets

An excerpt from my book The Complete TurtleTrader:

Richard Dennis’s friend Tom Willis had learned long ago from Dennis why price, the philosophical underpinning of Donchian’s rule, was the only true metric to trust. He said, “Everything known is reflected in the price. I could never hope to compete with Cargill [today the world’s second-largest private corporation, with $70 billion in revenues for 2005], who has soybean agents scouring the globe knowing everything there is to know about soybeans and funneling the information up to their trading headquarters.” Willis added [when talking about trend followers], “They don’t know anything about bonds. They don’t know anything about the currencies. I don’t either, but I’ve made a lot of money trading them. They’re just numbers. Corn is a little different than bonds, but not different enough that I’d have to trade them differently. Some of these guys I read about have a different system for each [market]. That’s absurd. We’re trading mob psychology. We’re not trading corn, soybeans, or S&P’s. We’re trading numbers.”