Archive for the expectancy Category

Expectancy

Posted in expectancy on 2010-12-29 by Strategesis

From Trader Mike:

“Expectancy along with position sizing are probably the two most important factors in trading/investing success. Sadly most people have never even heard of the concept. Out of the 30 or so trading books I’ve read only a few even touch on any aspect of money management. Only one of those handful of books discussed expectancy. In simple terms, expectancy is the average amount you can expect to win (or lose) per dollar at risk. Here’s the formula for expectancy:

Expectancy = (Probability of Win * Average Win) – (Probability of Loss * Average Loss)”

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