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MBA CMB: Executive Mortgage Banking (Executive CMB)

MBA CMB · Work through your exam, one topic at a time.

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Executive Mortgage Banking (Executive CMB)

Executive Mortgage Banking (Executive CMB) tests how senior leaders run a mortgage bank: strategy, financial performance, capital and liquidity, risk appetite, compliance governance, and capital-markets execution.

Core rules and concepts

  • Business model: retail, wholesale, correspondent, and consumer-direct channels have different economics; channel mix drives cost to originate and control.
  • Profitability: gain-on-sale revenue, net servicing income, MSR valuation changes, and operating cost; measure ROE and cost to originate, not volume alone.
  • Funding and liquidity: warehouse lines fund loans until sale; covenants, advance rates, and haircuts constrain capacity; secondary-market execution affects margins.
  • Risk: pipeline hedging, MSR hedging, interest-rate risk, credit risk, counterparty risk, operational risk, and compliance risk.
  • Governance: board-approved risk appetite, a Compliance Management System, fair-lending oversight, and vendor/third-party risk management.

Worked example

A mortgage bank originates $1.0 billion a year; 70% is sold servicing-released and 30% ($300 million) is sold servicing-retained. Gain-on-sale is 1.75% = $17.5 million. Annual servicing income at 25 bps on $300 million = $0.75 million. Cost to originate is 1.50% = $15.0 million; overhead is $2.0 million. Pre-tax profit = $17.5 + $0.75 - $15.0 - $2.0 = $1.25 million. With $10 million of equity, ROE = $1.25 / $10 = 12.5%. If the company chased volume at a 1.25% gain-on-sale margin, revenue would fall to $12.5 million and pre-tax profit to -$3.75 million; volume growth would destroy capital. The executive must also value the MSR: $300 million x 25 bps x a 5x multiple = $3.75 million, and hedge its duration and convexity.

Traps

  • Celebrating volume while cost to originate exceeds revenue.
  • Hedging the pipeline but not the MSR.
  • Ignoring warehouse-line covenants and margin calls.
  • Treating compliance as a cost center rather than a risk-appetite issue.
  • Using gain-on-sale without reserving for repurchases and indemnities.