Fixed Income Flashcards
Eliminate Counterparty credit risk
- Counterparty credit risk is essentially absent from exchange-traded derivatives, such as futures contracts, and
- It can be essentially eliminated from over-the-counter derivatives, such as swaps, through inclusion of a Credit Support Annex.
When to minimize convexity
Minimizing the portfolio convexity (i.e., the dispersion of cash flows around the Macaulay duration) makes the portfolio closer to the zero-coupon bond that would provide perfect immunization.
Roll Down Return
- The roll down return is equal to the bond’s percentage price change assuming an unchanged yield curve over the strategy horizon.
- The roll down return results from the bond “rolling down” the yield curve as the time to maturity decreases.
- As time passes, a bond’s price typically moves closer to par.
Value Weighted FI Index and Leverage
Value-weighted indexes are tilted toward issuers with higher levels of debt. The more an issuer or sector borrows, the greater the tilt toward that issuer in the index. Leverage and creditworthiness are negatively correlated, so a value-weighted index will be more susceptible to credit quality deterioration than an equally weighted index will be.
Horizon Matching
Horizon matching is a hybrid approach to liability-based mandates that combines cash flow matching and duration matching. Cash flow matching intends to match a short- to medium-term liability stream (charity donations for the first five years) to a stream of bond portfolio cash inflows. Duration matching further considers that the bond portfolio’s reinvestment risk and market price risk offset each other.
Methods of Leveraging FI Portfolio
The following methods of leverage may be used to increase portfolio returns relative to an unleveraged portfolio:
- futures contracts
- swap agreements
- structured financial instruments
- repurchase agreements, and
- securities lending.
Investment Grade Bonds vs. High Yield Bond
- Investment-grade bonds have lower credit and default risks than high-yield bonds and are more sensitive to interest rate changes and credit migration, which cause credit spread volatility.
- The much higher credit loss rate experienced with high-yield bonds results in an emphasis on credit risk and the market value of the position to evaluate high-yield risk.
Emerging Market Credit
Emerging market credit is characterized by a concentration in commodities and banking and government ownership of some entities. Additionally, uncertainty in creditor rights can lead to lower recovery rates and lower credit quality.
MBS & Interest Rate Volatility
Purchase mortgage-backed securities when expecting interest rate volatility to decrease. (Higher interest rate volatility leads to higher prepayment risk)
MBS bonds have negative convexity
Top-Down vs. Bottom-Up
- The key feature of a top-down approach is the assessment of the relative value
- The sector divisions used by a top-down investor are often broader than those used by a bottom-up investor
Option Adjusted Spread
The main shortcoming of OAS Is that it depends on assumptions regarding future interest rate volatility. Also, a bond with an embedded option is unlikely to realize the spread implied by the bond’s OAS; the realized spread will either be more or less than the OAS, depending on whether the option is actually exercised. For these reasons, OAS is a rather theoretical measure of credit spread. Despite these shortcomings, OAS is the most widely accepted measure of credit spread for comparing bonds with optionality and other features that generate uncertainty in the bonds’ cash flow.
Cash flow matching
- Cash flow matching has no yield curve or interest rate assumptions.
- Cash flows come from coupon and principal repayments that are expected to match and offset liability cash flows.
Classes of Liabilities
Multiple liabilities immunization requirements
- Match money duration (or BPV) of the asset and liability
- Asset convexity exceeds liability convexity (lowest convexity that exceeds liability convexity)
Single liability immunization requirement
- Have an initial market value that equals or exceeds the PV of the liability
- Match portfolio Macaulay Duration with horizon date
- Minimize convexity