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Credit Risk
A Credit Derivatives Primer
Blythe Masters, head of global credit derivatives for JP
Morgan, explains how credit derivatives are simpler-and perhaps more useful-than
you think.
For a portfolio manager, something nasty in the woodshed is owning paper
in a company that files for chapter 11. For a CFO, it's the thought that
the company's biggest customer goes bankrupt before paying the bill for
that mega-order. Several years ago, when it was hard to open a newspaper
without reading about another company going belly up, the only choice a
CFO or portfolio manager had was to buy letters of credit or guarantees,
or perhaps to attempt shorting corporate securities. Today, just as interest
rate swaps isolate and restructure interest rate risk, new instruments are
available that separate credit risk from market risk and provide insurance
at a reasonable price. Just as the default cycle may be turning and with
credit problems again in the air, credit derivatives offer particularly
rich risk premiums to investors in the market for credit risk.
For an investor, the existence of credit derivatives provides an opportunity to sell off the credit risk without also selling the underlying loan or
security. For a risk manager worried that too much of the company's business
is conducted with one customer, credit derivatives can provide a version
of business concentration insurance. And for arbitrageurs, credit derivatives
increase the tools at their disposal, for instance, as they seek to exploit
the differences in the pricing of credit risk between various markets and
time horizons.
By definition a credit derivative allows an owner to isolate and transfer
credit risk without in any way transferring the ownership of-or other risks
inherent to-the underlying asset. If, for example, an investor owns a bond
of a company that he thinks will undergo a rating change or a default within
the next year, he may decide to purchase a credit derivative, thus providing
himself with a measure of protection against the inevitable drop in value
that would occur when the company's credit deteriorated. From an economic
perspective credit derivatives and letters of credit (LCs) are similar;
both can involve a contingent payment to a counterparty should a third party
fail. Credit derivatives, however, are considerably more flexible.
The most basic credit derivative structure is the credit swap. In a credit swap the holder of credit risk pays a periodic fee. The other counterparty
agrees to make a contingent payment of a contingent fee if an event such
as a default occurs. Say the credit swap was written on the senior debt
of a now-bankrupt company. When the bankruptcy is concluded, holders of
this class of security may receive 60 cents on the dollar. The counterparty
then is liable for a payment which will return the bond to par. In this
case, the contingent payment would be 40 cents, or par minus the 60 cents
recovered from the company. In general, the more junior the debt in the
capital structure, the higher the contingent payment (because junior claims
will never recover less in bankruptcy) and the higher the investor's periodic
payment. It costs more to buy that which will pay out better.
Deceptive Appearances
Superficially, though the structure resembles a deep out-of-the-money
put option, it is more realistically described as a swap. We believe it
is more "swap-like" for the following reasons: the buyer makes
a continuous stream of payments rather than handing over a premium up front.
The seller's contingent payment is triggered only in response to an event
that is statistically more extreme than most option triggers. The credit
swap has a fixed leg, which represents the buyer's regular, fixed payments,
and a floating leg, which represents the seller's potential contingent payment.
Finally, credit swaps are usually documented under ISDA swap transactions.
Of course, there are many variations on this product. For example, rather
than using just one security, a credit swap can be engineered on a portfolio
of securities. Or if the issue is business concentration, a CFO may choose
a basket of his suppliers as the reference point for the credit derivative.
The reference credits can be almost any sort of entity that both sides of
the swap can agree upon. Furthermore, the contingent payment is equally
flexible. In a bankruptcy it need not simply cover the difference between
par and the recovery rate on a physical security; flat payments or a formula
linked to the market valuation of defaulted securities are often used.
Simple Models
Credit swaps can be priced without complex mathematical models. As an
example, imagine an investor who bought a bond that pays a fixed rate of
treasuries plus 50 basis points, or the equivalent when it is asset swapped,
which would be LIBOR plus 20 basis points. To finance this purchase the
investor repos the bond and pays the going repo rate, typically close to
LIBOR. The net income for this transaction, then, will be 20 basis points,
whether originally bought on a fixed or a floating rate basis.
A credit swap offers similar economics to a financed purchase of a bond-no net initial outlay of cash and a stream of income as compensation for a
default-contingent risk. Clearly, then, a benchmark for the fair pricing
of a credit swap, ignoring counterparty credit risk, illiquidity and balance
sheet issues, will be the asset swap spread on a comparable bond. If asset
swap spreads were wider than credit swap spreads, you would profit by owning
the asset swap and shorting the credit swap, and vice versa.
Though credit swaps are the basic building block in the credit derivatives universe, there are already many other derivative products available to
buyers and sellers of credit risk alike. These include options and forwards
on credit spreads, total return swaps on debt instruments, options to exchange
one asset for another ("substitution" options) and downgrade-triggered
credit swaps.
Buyers market
The credit derivatives market offers potential end-users the ability
both to buy and sell risk. Participants include banks, insurance companies,
corporations, institutional investors, money managers, reinsurance firms
and anyone else who has concentrations of illiquid credit exposure (risk
sellers) or who seeks to be paid for taking on credit risk buyers. Each
group of users has its own agenda and its own specific needs, although the
current environment is often characterized as a "buyer's" market
because those willing to buy risk through relatively novel means are often
well compensated.
Credit derivatives can help banks free up credit lines to important clients. Corporations find it easier to do as much business as possible with a few
key banks. For the banks, too much business from one client can breach internal
guidelines. For example, if Bank X gives The Widget Company a $400 million
dollar loan and then, three weeks later, the company calls to do a large
interest rate swap, Bank X will need some way of freeing up credit lines
so it can do the lucrative swap.
One way of laying off counterparty risk is to syndicate the loan, or
to sell it to another bank. However, these methods lack an important feature:
confidentiality. Credit derivatives make it possible to lay off excess exposure
discreetly and free up additional lines of credit to make further business
possible.
Insurance companies are often faced with a sticky regulatory dilemma
that forces them to hold onto investments that they would rather sell. In
held-to-maturity accounts assets are, not surprisingly, required to be held
to maturity and are difficult to sell unless a severe credit deterioration
has occurred. Clearly, an astute portfolio manager might prefer to reduce
credit risk prior to such an occurrence. Credit derivatives allow these
firms to lay off the credit risk associated with instruments lurking within
held-to-maturity accounts without actually selling them off. Regulators,
to date, have had no objections to this use of credit derivatives.
Credit derivatives can also help insurance companies to lock in profits
without incurring an onerous tax bill. Say a portfolio has appreciated for
reasons other than credit changes, perhaps because interest rates have dropped.
The insurer can offload the credit risk while locking in the interest rate
gains.
Credit swaps can be a boon to companies that wish to hedge against a
loss of business from a key client. For example, if the Widget Company sells
two thirds of its widgets to General Motors, and if GM goes bankrupt the
Widget Company is likely to follow its dominant customer to financial oblivion.
Buying a credit derivative can provide the Widget Company with an insurance
policy that will pay out if GM defaults.
On the other side of these transactions is the intrepid buyer of risk.
Because the credit market is now relatively young, investors are rewarded
handsomely for taking on credit risk, which is often costly and difficult
to get rid of once acquired. Furthermore, credit derivatives allow an intrepid
investor to take advantage of arbitrage opportunities in the price of credit
between markets, ratings brackets and term structures.
For example, if an investor can buy a bond for LIBOR plus 50 basis points
and then enter into a credit swap for a fixed payment of 30 basis points,
then he earns a positive 20 basis points per annum for what is effectively
a triple-A asset. And consider the case of the eight-year bond. Typically,
the first five years are relatively cheap to the issuer and expensive to
the investor; during the last three years, the situation is reversed. The
investor demand for five years is greater than that for eight years. With
credit derivatives an investor can actually sell the risk associated with
the first five years of the bond, and take on only the final, most profitable,
three years of risk.
Fertile Adaptation
As with other species of derivatives, as credit derivatives become more
accepted they also become more adaptable. The requirements between two counterparties
need not match exactly. Consider the following example: Bank X will accept
credit exposure at the senior, unsecured level or a spread of 40 basis points;
Bank Y wants to sell this exposure at the same spread. However, Bank X feels
the recovery rate for this debt is about 50 percent while Bank Y feels that
the recovery rate is more like 70 percent. Given these two banks' differing
views, how can they build a credit swap structure that works for them both?
One solution is for the two institutions to enter into a credit swap
wherein the contingent payment is fixed at 50 percent rather than at the
floating recovery rate as determined by a dealer poll. Since the formula
"par minus recovery rate" means that Bank Y will receive a higher
level of protection than that specified by the 70 percent recovery rate,
Bank Y might be amenable to paying a bit more for the additional protection.
While I cannot speak for other banks, JP Morgan has taken a very active
approach towards the developing credit derivatives market, not only because
we are a large derivatives market maker, but also because Morgan's commercial
banking business, which includes corporate lending, providing guarantees
and other activities which generate illiquid credit risk, is an avid consumer
of credit derivative products. Indeed, Morgan's portfolio managers, who
are responsible for managing our "warehouse" of long-term credit
risk, have contributed greatly to the product development process, and they
have purchased literally billions of dollars in credit as risk management
tools. Thus, JP Morgan is extremely serious about credit derivatives, and
we look at this area as a business rather than a series of products.
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