Ron Surz

ContactRonald J. Surz is the President of PPCA, Inc (www.PPCA-Inc.com), an RIA in San Clemente, CA, providing manager due diligence technologies, and enhanced UMA platforms.
read more ...

PPCA, Inc

Simple Performance Lessons You Have Not Learned - Challenge The Status Quo edit
Wednesday, May 30, 2012 20:54

Tags: active management | benchmarking | Due Diligence

Half of the active managers should beat their benchmark, yet evidence suggests they do not. That is, evidence contradicts Dr. William F. Sharpe’s acclaimed “Arithmetic of Active Management,” which predicts that managers collectively will earn the benchmark return, with half exceeding it and half trailing it. Clients want performance but they are not even getting a 50-50 shot at it, due in large part to the inability of many advisors to identify skill. That’s because many of you are measuring performance with a ruler – the wrong instrument.

This Website Is For Financial Professionals Only


 
The CFA Institute’s Benchmark Committee issued a report in 1998 that recited a litany of problems with peer groups and advised against using them. However, the institute conceded that most readers were likely to ignore the warning. The report goes on to recommend custom benchmarks. This report has been removed from the institute’s website, but I’d be happy to send it to you.
 
I agree with the report in large part, and I have created the glue that holds custom benchmarks together with a replacement for peer groups. If you rely on benchmarks (custom or otherwise) you'll find that you need to wait many decades to get a significant alpha, even if the manager is reasonably skillful. The "glue" is to instead view performance evaluation as a hypothesis test. We test the hypothesis “performance is good” by simulating all of the portfolios the manager could have held, selecting stocks from the custom benchmark, to create a custom peer group. This gets rid of all the biases in peer groups and solves the waiting problem with custom benchmarks.

A related issue is the creation of custom benchmarks. In his seminal article that introduced style analysis, Sharpe said the style palette should comprise indexes that are mutually exclusive and exhaustive. Russell, MSCI and S&P indexes do not meet these criteria. Plus Russell indexes have two other problems: annual rebalancing and the reliance on Price/Book. The book values of fallen financials in this economic crisis are grossly overstated.
 
There are two index families that do meet the Sharpe criteria, Surz and Morningstar. Morningstar copied Surz.
 

The three key due diligence questions are:
What does this manager do?
Does he do it well?
Why?


The third question is attribution, and is the most forward-looking. To get an accurate answer you need a holdings-based system that provides an accurate benchmark, because if the benchmark is wrong all of the analytics are wrong. There are only a few attribution systems that allow custom benchmarks, such as FactSet and StokTrib. Most attribution systems are limited to off-the-shelf indexes as benchmarks, which only work for index huggers.


So these are some of the better methods. More details are available at www.ppca-inc.com and www.stoktrib.com. These contemporary improvements have not become mainstream because some, albeit a minority, benefit from the status quo – theyprefer to see due diligence remain in the Dark Ages. Are you happy with the status quo? If not, what are you waiting for?

Comments (0)

Write comment

You must be logged in to post a comment. Please register if you do not have an account yet.

busy
 

Login

Banner
Banner
Banner

Comments

Banner
Banner
Banner
Banner