A portfolio can contain hundreds of customers and still depend heavily on a small number of businesses or a single economic sector. Counting accounts does not show how exposure is distributed.
Concentration analysis helps finance and credit leaders understand where a disruption could have an outsized effect. The goal is to make dependencies visible and support proportionate decisions, not to assume that every large relationship is undesirable.
Define the exposure you are measuring
Begin with a clear basis: posted trade receivables, approved limits, or a defined combination of receivables and commitments. These measures answer different questions.
Receivables show current outstanding balances. Limits show authorized capacity that may not be used. Open orders can add a forward-looking view, but require care to avoid double counting invoices already posted.
State the reporting date, currency conversion method, and treatment of credits and cash. Reconcile totals to the supporting records before comparing segments.
Look at several forms of concentration
Review large individual customers and related corporate groups. Then consider industry, geography, business model, or dependence on a shared contract or input.
These categories can overlap. A customer group may operate in several regions, while several unrelated customers may depend on the same market. Do not add overlapping category percentages as if they were separate parts of a whole.
Record the sources and quality of classifications. A broad industry code may conceal materially different business activities.
A hypothetical portfolio example
Assume a fictional portfolio has $10 million in trade receivables, all translated into one reporting currency on a consistent basis.
| Segment | Receivables | Share |
|---|---|---|
| Customer group A | $2.5 million | 25% |
| Customer group B | $1.5 million | 15% |
| Other customers | $6 million | 60% |
| Total | $10 million | 100% |
Group A represents one quarter of the receivables. That does not establish that the account is weak. It shows why its payment behavior, financial position, and purchasing plans deserve visible management attention.
A separate industry view might show 40% in one sector, including some customers in both groups. That is a different lens on the same portfolio.
Use scenarios to understand consequences
Consider an illustrative scenario in which 30% of group A’s $2.5 million balance pays 60 days later than expected. The delayed amount would be $750,000.
This is a timing scenario, not an assumed credit loss or a forecast. Finance can assess the cash and funding implications using its own assumptions. A separate scenario would be needed to assess a write-off or recovery outcome.
Scenarios are useful when they make assumptions explicit. Avoid presenting a precise modeled number as though it predicts what will happen.
Connect concentration with credit quality
Review concentration alongside risk ratings, aging, financial information, and payment history. A large strong account and a smaller deteriorating segment may require different responses.
Also examine approved but unused limits. Potential future exposure may differ materially from current balances if several customers draw on facilities at the same time.
Where related entities are involved, distinguish the management grouping from legal liability or guarantees. A consolidated view should not imply recourse that the contractual arrangements do not provide.
Choose practical responses
Possible actions include more frequent review, additional information requests, management approval for further increases, closer payment monitoring, or changes in the pace of exposure growth.
Any adjustment to commercial terms, security, insurance, or other risk arrangements requires review of the actual cost, conditions, and authority. Diversification is not achieved merely by opening more accounts with the same economic dependency.
Coordinate with sales and finance. A concentration decision can affect revenue plans, customer commitments, and working capital, so the rationale should be understood across the relevant teams.
Make portfolio review repeatable
- Define exposure and reconcile the total.
- Maintain reliable customer-group and segment classifications.
- Show large relationships and changes over time.
- Combine concentration with credit quality and aging.
- Use clearly labeled scenarios with documented assumptions.
- Assign owners to resulting actions.
Set review thresholds according to your business rather than adopting an unexplained universal percentage. Track exceptions and reassess thresholds as the portfolio changes.
CMS Credit Suite supports portfolio reporting, configurable risk ratings, and family rollups that can help organize commercial exposure information.
Contact Credit & Management Systems, Inc. to discuss improving visibility into concentration across your B2B receivables portfolio.