"The stock market is filled with individuals who know the price of everything, but the value of nothing."

Philip Fisher
Founder of Fisher & Co.


Use Risk-Adjusted Return to make better decisions

Try the Alpha Theory™ Calculator Now

Try the Alpha Theory™ Calculator Now
Alpha Theory banner
Subscribe to Alpha Theory content

Alpha Theory Blog - News and Insights

« April 2010 | Main | June 2010 »

1 posts from May 2010

May 11, 2010

The Random Walk Spoiled

A friend of mine named Manish Malhotra just had an article published in Advisor Perspective in which I contributed. The concept is based on the fact that most wealth accumulation models assume a "random walk" sequence of returns, however, the direction of the market the previous year has an impact on the subsequent year (Bayesian probability). This fact should be included in the forecast of long-term wealth accumulation. This is a critical flaw in many wealth forecasting software packages and, quite honestly, causes them to give very wrong results. Check out the article on the Advisor Perspective website.