What is a commercial credit risk model (KRM) score and when should I use it?

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AcadiFi · Accepted Answer

Commercial credit scores are built specifically for non-consumer obligors — small businesses, mid-market firms, and sometimes large corporates. The most common is Moody's RiskCalc (originally Moody's KMV RiskCalc), which uses accounting ratios plus size and industry factors in a non-structural statistical model. Other providers include Dun and Bradstreet PAYDEX (trade payment history, 0 to 100 scale), Equifax Business Credit Risk Score, Experian Intelliscore Plus, and FICO SBSS (Small Business Scoring Service, used heavily by SBA lenders).

The key difference from consumer FICO is the input data. Commercial scores use financial statements — leverage, coverage, profitability, liquidity, activity — rather than revolving utilization and payment history on credit cards. For a hypothetical restaurant supply distributor Larkspur Foodservice, a commercial scorecard might weight debt/EBITDA, interest coverage, current ratio, EBITDA margin, asset turnover, plus qualitative overlays like industry risk and years in business. Trade payment data from D&B then supplements the financial snapshot.

For FRM candidates, the takeaways are: (1) commercial scores typically output a 1-year or 5-year PD directly rather than a 300-850 score, (2) they have materially less data density than consumer bureaus so stability is lower, and (3) regulators require model validation including out-of-sample testing, discriminatory power via AUC or Gini, and calibration tests like the Hosmer-Lemeshow statistic.

What is a commercial credit risk model (KRM) score and when should I use it?

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