Aug 08 2008
Stock & Bond Brokers – A Modest Proposal
If I were to make a recommendation to my security holding house it would go something like this.
- Set up the option to allow the investor to establish an asset allocation plan for their portfolio, much as we do in the spreadsheets for the AA-Mosaic and Mosaic2 portfolios.
- Establish appropriate benchmarks for the customer. This may be a combination of both equity and bond benchmarks or multiple benchmarks as determined by the target percentages assigned for each portfolio.
- Calculate the beta for each portfolio.
- Calculate the alpha for each portfolio.
- Calculate the sigma for each portfolio.
- From this data, determine the Information Ratio for each portfolio.
- Provide an easy method for merging multiple portfolios so one can measure the return of the portfolio compared to its appropriate benchmark.
- One should also be able to measure the alpha, sigma, Sharpe Ratio, R-Squared value, and Information Ratio for the merged portfolios.
While these requests may sound daunting, each broker house has the information to make these calculations for each and every customer.
What is in it for the security house? Why would they want to provide such a service? The bottom line is that any stock and bond security house could use the service to attract new customers. Further, such a service would help brokers work more effectively with their clients in planning and managing portfolios. Above all, the flexibility to manage portfolios in the manner would be a remarkable improvement over the current statements.
I visualize customers establishing their own target limits just as we do in the Thomas/Lalla/Herr spreadsheet. When an asset class within the portfolio moves out of the target range, an e-mail reminder is sent to the customer warning them that one of their asset classes is out of balance. Note: It would be very important for each customer to have the flexibility to set their own target limits.
If there are like-minded readers out there, please comment on this modest proposal.
Lowell Herr
Photograph: Your local “friendly” rodent.
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