Whole Pool


DEFINITION of 'Whole Pool'

In the mortgage-backed securities market, whole pools refer to mortgage certificates where ownership is represented by an undivided interest in entire pools of mortgages. The term 'whole' refers to the fact that the ownership interest is undivided, as opposed to a partial or fractional interest in the pool of mortgages.


The owner of a whole pool would generally retain all the upside potential associated with the pool. However, the downside risk is also not mitigated, since it is borne only by the investor, not shared among several participants as would be the case if they held a fractional interest in the pool.

  1. Collateralized Mortgage Obligation ...

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  2. Collateralized Debt Obligation ...

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  3. Pass-Through Certificate

    Fixed-income securities that represent an undivided interest ...
  4. Pass-Through Security

    A pool of fixed-income securities backed by a package of assets. ...
  5. Whole Loan

    A single residential or commercial mortgage that a lender has ...
  6. Maturity

    The period of time for which a financial instrument remains outstanding. ...
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