KYNEX Bulletin                                  

January 2007

High Yield & Corporate Bonds

 

Kynex has expanded its security coverage to include a sizable portion of the domestic corporate bond market. Currently, Kynex has included all domestic high yield bonds in its indicative (terms and conditions) database and a significant number of liquid investment grade bonds as well. Additions and enhancements are highlighted here, but you can follow the links for additional detail and explanation.

 

 

 


HY / Corp

 

Kynex has added a new tab to its main blue banner.  Clicking this tab will bring you to a page showing you Recent New High Yield and Corporate Issues as well as Interesting High-Yield and Corporate Issues.  The Recent New High Yield and Corporate Issues are new bonds that have come to market within the last four weeks.  For Interesting High Yield and Corporate issues, we look for bonds that have had a spread change of 10 percent either way, or bonds whose stock price is within 0.5 percent of a 52 week High or Low, or bonds whose week-over-week stock movement is at least 10 percent.  The tables will give you a quick glance of the bonds’ terms and valuation measures.  For a comprehensive analysis of the bond just left click on the specific bond and go to the Corporate Details Page. 

 

 

If you wish, you can sort on any column by just (left) clicking on the column name.

 

 


History

 

Kynex now stores historical valuation measures for every corporate bond in our system.  On the left hand side of the Corporate Details Page you will find a link to the History.  The history page will chart Spread to Worst and Duration, Spread to Worst and Years to Worst, and Spread to Worst and Yield to Worst.  You can put your mouse inside the interactive chart on a particular day and the chart will display the securities valuation measures in the right column.

 

 

 


Advanced Search

 

Kynex Advanced Search allows you to identify bonds with certain characteristics that you specify.   You can simultaneously specify valuation parameters (e.g. yield or spread), terms and

 

 

conditions (e.g. coupon, call protection) and corresponding stock characteristics. For example, suppose you are interested in dollar denominated investment grade corporate bonds whose stock price has deteriorated by 40% or more from its 52 week high. The following filter gives the desired set of bonds.

 

 

 


Kynex Corporate Details

 

The Corporate Details Page calculates various price/yield/spread measures for a specified bond or preferred stock.  As an example, consider the Rite Aid (RAD) 8.125% corporate bond maturing on 5/1/2010 (trading on 12/18/2006 with standard settlement).

 

 

 

The Corporate Details Page defaults to a “Price-to-Worst” quote type. Other quote types include:

Yield-to-Worst

Clean Price

Dirty Price

Yield-to-Workout/Maturity

Spread-to-Workout/Maturity (Interpolated Yield Curve)

Spread-to-Workout/Maturity (Par Yield Curve)

Spread-to-Workout/Maturity (Zero Curve)

Yield-to-next-call (call notice period if currently callable, maturity if not callable)

Yield-to-next-put (maturity if not put)

 

Most of the risk measures are self-explanatory.  It should be noted that the “Years” column gives the weighted-average time to all future principal payments (WAL).  It reflects the day count of the security. For sinkers, the Years value will be less than the number of years until maturity or workout. The SpreadDV01 value will always be equal to the IntRatesDV01 for non-floaters. For floaters, the IntRatesDV01 also reflects the change in future projected coupon rates based upon implied forward rates.  Therefore, the IntRatesDV01 can actually become positive for longer floaters.  When the yield curve is steeper, the IntRatesDV01 will also become or be more positive since the projected forward rates will be greater.

 

 

If you wish to enter a workout date, you may do so without specifying a workout price. The workout price will be determined from the call schedule (or the accretion schedule for an accreting bond).  This feature is especially useful for floating-accretion bonds (e.g. MER 0% 3/13/2032 convertible).

 

The following graph shows the US Dollar Swap Curve as of the close of 12/18/2006 (the construction of these curves is discussed in the December 2003 Kynex Bulletin).

 

The Par Curve Spread gives the number of basis points that the yield curve (blue curve in the above graph) would need to shift in order for the full price of the bond to equal the sum of the discounted bond flows. The Zero Curve Spread gives the number of basis points that the spot curve (purple curve in the above graph) would need to be raised in order for the full price of the bond to equal the sum of the discounted bond flows.  The Interpolated Spread is based upon a single point on the par yield curve (blue curve). That point is determined from the time to workout or maturity (for sinkers, the WAL is used). Additional detail on interpolated spreads can be found in the Worst Date Migration section.

 

The Return value is the percentage return from settlement until maturity or workout assuming that future coupons are reinvested at risk-free rates from the coupon date until maturity or workout (implied forwards are used).

 

 

 

Cash Flows

 

On the left hand side of the Corporate Details Page you will find a link to Cash Flows Page.  Once again consider the Rite Aid (RAD) 8.125% corporate bond maturing on 5/1/2010 (trading on 12/18/2006 with standard settlement). The cash flows to the worst date are shown below.

 

 

The flows are calculated to maturity or the workout date or the worst date depending upon your other inputs. If the “Calc Risk” flag is checked, the IntRatesDV01 is decomposed by cash flow so that you can see what each flow contributes to the total risk. Additional information is provided for floaters. Consider the Bank of America floater maturing on 6/19/2009.

 

Note that the reset dates, the projected index values and the coupon rates are shown for each of the future accrual periods. For LIBOR floaters, the reset dates are usually two business days before the start of an accrual period. In this case, the minimum denomination of the bond is $5,000, so 1000 bonds have a face of $5 million. If you desire to see prior coupon fixings, you need only select “Show Hist”.

 

 

In this table, past and projected coupons are shown together.

 

For accreting bonds, the accretion rate and the accreted value are shown. Consider the FWTR 9% convertible bond maturing on 11/15/2012 (convertible bonds may also be pulled into the Corporate Details Page for a “straight” or “busted” valuation). This bond accretes at 12% but pays a 9% coupon.

 

 

For sinkers, the principal flows are clearly shown as well as the breakdown of risk. Consider below the Reliant Energy sinker RRI 9.681% 7/2/2026.

 

 

 


 

Worst Date Migration Analysis

 

Worst Date Migration Analysis (WDMA) is intended to identify those price-yield points on the Yield-to-Worst curve where the worst date is changing from one redemption date or call date to another as interest rates fluctuate.  The tendency for the worst date to migrate to earlier call dates as yields decline demonstrates the negative convexity of callable bonds (even though the convexity of every price/yield curve corresponding to the redemption dates is positive).  As an example, we will use the Rite Aid (RAD) 8.125% corporate bond maturing on 5/1/2010 (trading on 9/13/2006 with standard settlement). For every yield, we calculated the price of the bond assuming the workout date was equal to each of the call dates.

 

 

The Yield-to-Worst curve is defined as the minimum price over all of the redemption dates for a given yield (or equivalently, the minimum yield over all the redemption dates for a given price). Given a yield, the worst curve gives the lowest price.  Given a price, the worst curve gives the lowest yield.  If you take a closer look at the same price/yield points, you will see that every call date becomes the worst date for some yield (the arrows on the next graph indicate the worst dates).  If the bond is trading at a price in the proximity of these cusp points, prices and yields will remain smooth but spreads and durations will jump (unless evaluated with an OAS model).  Around these points, there is significantly more doubt about the duration of the bond. If you are segmenting a portfolio of bonds into duration buckets for risk purposes, some bonds may jump into longer buckets even as the bonds age. These jumps are not due to market movements or changes in credit worthiness.  Rather, they are entirely attributable to the migration from one redemption date to another as price levels change. Spread jumps will be more severe if the benchmark curve is steeper.

 

 

Kynex identifies these points of intersection (crossover yields and crossover prices), and then calculates the magnitude of the spread jump and the duration jump. All spreads are interpolated spreads. These spreads are not just calculated by direct interpolation on the yield curve. Rather, risk free par yields are first calculated from implied spots and forwards (see the December 2003 Kynex Bulletin on Interest Rate Swaps).  These interpolated spreads are numerically close to par yield spreads, but can be computed much more quickly.  It is common in the corporate market not to use interpolated spreads.  Rather, spreads are quoted to a specific Treasury whose maturity is close to that of the corporate bond. Although this method will not produce these spread jumps, it does not address the issue of when to change the benchmark security. If the benchmark security is not changed, the corporate bond price will not track well with the Treasury. WDMA gives you the exact price/yield when change of benchmark is prudent.

 

For this Rite Aid bond on 9/13/2006 using the Treasury curve as a benchmark, the values are summarized below.

 

 

 

 

In WDMA, Kynex graphs spread versus price, yield versus price and modified duration versus price.  We make sure that the points to be graphed include the crossover prices.  Intermediate points are then sprinkled between. At the bottom of the graph, cross over yields and prices are shown in a table.

 

As the graph clearly shows, modified duration will lengthen as prices decrease, and the points at which it jumps are indicated by a vertical line.  Since you know the price of the security, you can easily determine if the bond’s price is close to one of the crossover prices.

 

 

 

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