In previous posts, I have reported serial correlation coefficients, and performance figures for the 3 major trend following cta's featured in the Covel book, and discussed the fallacy of relying on anecdotal reports of retrospecptively chosen advisers, who at one time or another were associated with trend following, and anecdotal reports on the the wealth of this or that trend follower as much of their wealth often comes from management and incentive fees rather than total profits taken from the market. I was fortunate at an early age to be associated with MFM Osborne, and one of his favorite principles was that flexible fast moving decision makers had a big edge over those who followed mechanical systems, whether in the placement of their orders or the reliance on fixed systems. He believed that the flexible and adaptable would adjust to mechanical systems and take all their chips. I have found from my subsequent study and practical trading that Osborne was right in this belief. A subsequent evolution in my thinking has been the insights of my namesake Mr. Robert Bacon, who invented the system of ever changing cycles which shows why just when a system seems good, it is guaranteed to be worst.Mr Larry Harris magnificent book, Trading and Exchanges has a related extension of this idea wherein he divided traders into ephemeral traders and economic traders, and shows that the former, and their followers are destined to pay the frictional upkeep of the latter, The difficulties with trend following above and beyond other sytenatic approaches include that the execution costs are quite high. A bid and asked spread of 1/4 or 1/2% in my experience is normal for even the most liquid markets like foreign exchange. Multiply that by a turnover of once a month, and take account of the fact that market makers know where all the trend points are, and the amount of grind that the trend followers must overcome can become burdensome indeed. On a related note, I always favor the idea that markets have a relatively smooth and regular relation with each other, and that a good working hypothesis is that when one market gets out of wack with another, that the forces of the other market will pull the out of line market into alignment with it. Occasionally I have communicated with experts on this point, and they have chastised me for my views. They point out that many of the trend followers take out an implicit or explicit 8% of total assets under management a year in implicit or explicit fees, and that I should not judge the five major trend followers allued to above based on their reported results, which as far as I can tell, above were about -25% on average in 2004 and 2005 on total assets of approximately 10 billion ( survivership bias and selective reporting of existing funds results( one of the 10 figure majors stopped reporting after a 10 figure loss)) makes a exact accounting rather difficult. This is a very good point, and a true test of anomalies, randomness, and regularities in this or that market should take such fees into considertion and those who dont charge the fees should not be tarred with the same brush in my opinion. In this regard S&P has an investable index of managed futures that " aims to track systematic managers employing mainly trend following and pattern recognition techniques" .It appears to have been investable from a 1050 or 1100 level in Feb 2003 and now stands close to its two year high at 1130, down from 1200 in March 2004.One imagines that a prerequisite for inclusion in the index is a reduced level of fees so that all can wet their beaks. Nevertheless, it is regrettable to some such as myself that such an index does not seem available for shorting but only for buying. But that is guaranteed to happen. Sincerely, Profturf