easy · Asset-Backed Securities

If a pool has an SMM of 1.00%, how is the 'Monthly Decay Factor' (the survival fraction) defined?

  1. It is 0.99, representing the fraction of the eligible balance that did not prepay.
  2. It is (0.99)^12, representing the annualized survival rate of the pool.
  3. It is 0.01, representing the fraction of the pool that liquidated during the month.
  4. It is 1.01, representing the expected growth of the pool principal due to interest.

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