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Medium Profitability Financial Analysis Competitive Response

MBS Co.

#Financial Services
ProHub Comment

This case requires candidates to diagnose a ROC decline driven by adverse portfolio selection—banks are retaining high-quality mortgages while selling lower-quality loans to MBS Co. The solution involves both quantitative ROC analysis and strategic brainstorming around how to rebalance the portfolio mix, testing both analytical and creative problem-solving skills.

Estimated Time 27 minutes
Difficulty Medium
Source Darden
31 / 100
Your client is MBS Co., a government sponsored enterprise (GSE), that purchases mortgages from banks, packages them into mortgage-backed securities (MBS), and sells them in the secondary market to investors. MBS Co.’s return on capital (ROC) has declined since last year, and the management team is looking for your help in understanding why this has happened and how to improve ROC going forward.

Clarifying Information

  1. MBS Co. buys individual mortgages from banks and packages several thousand of them into a given security. Shares in that security are sold to investors.
  2. When a homeowner makes a monthly mortgages payment, the payment passes through the bank first, then through MBS Co., then to investors (primarily institutional investors).
  3. MBS Co. keeps a small fee on each payment that passes through. The fee amount is based on a percentage of mortgage volume (i.e. how much money was loaned to homeowners).
  4. MBS Co. has one other GSE competitor that buys mortgages and creates mortgage-backed securities. The securities from both companies are fungible to investors.
  5. Banks can also choose to hold mortgages – rather than sell to a GSE – and keep the full monthly mortgage payments from homeowners.
  6. There is no target ROC. Any improvement in ROC would be considered a success.
  7. Return on Capital (ROC) = profits / capital
Mock Interview
Interviewer

Your client is MBS Co., a government sponsored enterprise (GSE), that purchases mortgages from banks, packages them into mortgage-backed securities (MBS), and sells them in the secondary market to investors. MBS Co.'s return on capital (ROC) has declined since last year, and the management team is looking for your help in understanding why this has happened and how to improve ROC going forward.

You

Thanks. Before analyzing, I'd like to clarify a few key questions...

Interviewer

Good question. Let me provide some background information...

You

Based on this, I suggest analyzing from these dimensions...

AI Score
Structure Analysis Communication Business Sense Quantitative
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MBS Co. faces declining ROC due to banks’ decision to hold better mortgages in-house rather than sell to the GSE. By analyzing capital requirements across mortgage cohorts and identifying an opportunity to shift capital toward higher-quality loans, candidates can calculate a potential ROC improvement from 12.0% to 12.5%.

Key Insights:

  1. ROC decline stems from vertical integration (banks holding mortgages) rather than operational issues
  2. Capital requirement by mortgage cohort is the critical lever for ROC improvement
  3. Portfolio composition shift reveals the zero-sum nature of the mortgage market and competitive dynamics
  4. Solution requires both quantitative capital reallocation analysis and strategic options for acquiring higher-quality mortgages