• Immunization is a risk mitigation strategy that equalizes the duration of assets and liabilities so that the value of the portfolio is protected from changes in interest rates.

  • Immunization can be achieved by cash flow matching, duration matching, swell matching and trading forwards, futures and bond options.
  • The downside of portfolio immunization is the rejection of opportunity costs if assets were to increase in value while liabilities also did not increase in the same way.