Tuesday 17 March 2009

The next one...

Not so long ago were 6 companies that enjoyed a AAA credit rating from Moody's based on the company's size, stability and ability to pay back debt.
GE was recently stripped of its AAA rating and received a lowered rating of AA+. Below is a list of the AAA rated companies (excluding Berkshire Hathaway BRK/A), their valuation attractiveness, and their Z-scores (likelihood of going bankrupt in the next 2 years). Which of the AAA companies may be the next to join GE in getting a rating downgrade? Automatic Data Processing (ADP) has the lowest Z-score (the least amount of financial strength) and is theoretically the most likely company to have its AAA rating lowered.


De ALT-Z score is a metric that gives insights into the likelihood of a firm going bankrupt in the next 2 years. The model was developed by Professor Edward I. Altman of the NYU’s Stern School of Business and first published in The Journal of FINANCE in September 1968. A common critique to this metric is that it was developed over 40 years ago and is no longer relevant.

In 2001, Professor Joseph D. Piotroski of The University of Chicago Graduate School of Business, published a paper called, Value Investing: The Use of Historical Financial Statement Information to Separate Winners from Losers. Piotroski showed that value investors were rewarded by looking at a firm’s financial health and he showed that Z-score was a meaningful statistic.

More recently, on December 5, 2008, Dr. Altman was called to testify before a House of Representatives Committee on the condition of U.S. Automakers. In his testimony, he noted that Bloomberg, Inc. reported, “that approximately 1,000 users of their system per day access the Altman Z-Score model.”
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