Relative Value Methodologies for Bonds
Relative Value Methodologies for
Bonds
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Cyclical
Change: Bond has
higher return when more new bonds are issued due to more certainty of price
Secular
Change:
Mainly the
intermediate bullets dominates the market
- Security with embedded options traded at
premium due to scarcity
- Less long durations
products. Managers willing to pay premium for
- Credit-derivative is increasing used
Liquidity: Bond Markets is moving towards increased
liquidity due to innovation of trading and competition between portfolio
managers
Rationales for
trading in secondary bond markets:
1) Yield/Spread Pickup Trade – swapping A-rated
bonds for BBB bonds for large yield basis. But this does not include the
potential yield narrowing in A-rated bond as measured in total return approach
2) Credit upside trades – spot for upgradable
bonds (occurs most between BB and BBB)
3) Credit-defense trade: reduce exposure to
sector expecting downgrade
4) New Issue Swaps: New issues have higher
liquidity so higher price
5) Sector-rotation trade: switch from
underperform sector to outperform sector
6) Yield Curve Adjustment Trade – shift
portfolio to match the expected yield curve change
7) Structure Trade: swap the structures
(callable, putable etc) at different yield, volatility and interest rate
expectation
8) Cash Flow reinvestment trade: Due to extra
cash flow and no coincidence of bonds from primary market, need to trade in
secondary market
If interest rate
expected to rise, sell long duration bonds
If yield spread
expected to be narrowed in a sector, buy long duration bonds in that sector
Rationales for Not
Trading:
- Trading constraints:
- Story disagreement: Buy-side and Sell-side
have different opinions
- Buy-and-hold: reluctant to recognize lost or
want to reduce turnover rate
- Seasonality: managers are occupied in report
writing at the end of quarters and years
Nominal Spread: just yield differences between the bond and treasury
with the same maturity
Swap Spread: Difference between the fixed rate payer rate and treasury
of the same maturity
OAS: with embedded option value removed. It is becoming smaller due to
less embedded structures
Mean-reversion Analysis: Believe if too far away, the yield should
revert to the historical mean (so buy when spread is high, using t-score to
determine if significant)
Quality Spread Analysis: Buy low quality bonds if the spread
between it and high quality ones is too large
Percentage Yield Spread Analysis: yield of bond/ yield of treasury
Callable Bonds:
- When yield is much higher than the coupon
rate, no differences between the callable and non-callable
- When yield is smaller than the coupon rate:
- Outperform non-callable when interest rise
- Underperform non-callable when interest
reduces
Putable Bonds:
- Rare, difficult to evaluate
- Credit risk from issuer should be the main
focus
Sinking Fund:
Issuers have funds
to retire portions of the bond
When discount at
par, there is potential to rise because the firm has to purchase at par.
Does not fall as much as callable and putable bonds when interest raises
because the issuer has to retire a certain portion every year
Credit Analysis
- Corporate Bonds – ability to pay
- ABS – quality of servicer and collaterals
- Municipal bonds – ability to collect tax
- Foreign Bonds – ability (economic risk) and
willingness (political risk) to pay