Understanding Diversity Score and How It Works

Understanding Diversity Score and How It Works

Expanding your investment, as every investor knows, is a fantastic method to reduce risk and this is especially important for large investment firms buying Collateralized Debt Obligations (CDOs). For these investors, the diversity rating was created as a means to assess a CDO’s hazard ratio. CDOs that are broader have better diversity scores, indicating that they are less risky for investors.

Collateralized Debt Obligations

CDOs are asset-backed loan obligations, while CLO is a type of investment that consists of a group of commercial loans, such as organizational bonds. A CMO, or collateralized mortgage obligation, is another typical type of CDO wherein the investment population is made up of debt securities.

Because the actual obligations are regarded as assets, investment brokers label CDOs as asset-backed securities. The CDO investors are compensated as the underlying obligations are fulfilled. If the debts have a high default rate, problems arise. Investors required a metric to determine the risk of a particular CDO, thus the production of Moody’s diversity scores.

The Foundational Principles

The diversification rating is predicated on the assumption that enterprises in a given industry respond to similar market factors. Comparisons to the technology boom, tech crash, or housing slump imply that those sectors are reacting in the same way.

The standard link is the probability that firms are at risk of defaulting at the same time because not everything in the CLO is susceptible to the same economic circumstances, a CLO with a significant diversification ranking is theoretically protected against such peaks and troughs.

Applying the Calculation

The diversity rate is determined by Moody’s using a trademarked method. This method entails constructing a simulated profile of similar commodities that closely resembles the real portfolio.

Assets from the same sector are treated the same and each item in the investments has its probability of default. The number of assets is used to calculate the diversification score and for each component of the simulated portfolio, a diversification score can be generated.


Because it does not reflect how sectors within a portfolio may be related, the diversification score is an imprecise method for assessing risk. Even if the cost of gas has an instantaneous influence on haulage, a CLO incorporating loans to oil corporations and credit to truckers associations would be deemed diversified.

Although some analysts question the diversity score, claiming that it exaggerates default link and plausibility while underestimating recovery rates after loans have failed.

The Author

Ajisebutu Doyinsola

Doyinsola Ajisebutu is a journalist and prolific writer who takes a special interest in Finance, Insurance, and the Tech world.