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A
callable security (or
redeemable security) is a
security with a call provision. This
provides for the early retirement ("call" or "redemption") of the
security. Redemption may be required (mandatory
redemption) or it may be at the issuer's option. The two common
forms of callable securities are
callable
preferred stock and callable bonds.
All or part of an
issuance may be called. If only part is called, the specific securities to
be retired may be selected by serial number, lottery or some other
mechanism.
Investors whose
securities are called are paid a
specified value, called the call price.
For callable preferred stock or
coupon bonds, the call price may be the
security's par value, or
it may be a price somewhat higher than the par value. For
zero-coupon
bonds, the call price may be equal to or
greater than the security's book value. The difference
between a security's call price and par value (or book value) is the
call premium.
There are
different reasons why an issuer might call securities, so securities may
be issued with multiple call provisions. Three types of call provisions
are commonly encountered:
Optional
redemption allows the issuer to call the security for any reason.
Extraordinary
redemption primarily applies to bonds. It provides for redemption
if certain specified events occur. One such event might be the destruction
of facilities a bond was issued to finance. In such a case, funds for the
redemption would come from an insurance policy covering the facilities.
Another event might be a determination that interest payable on a
municipal bond was taxable. If a specified event occurs, redemption may be
mandatory or at the issuer's option, so there is
extraordinary mandatory
redemption and
extraordinary optional redemption.
Sinking
fund redemption requires the issuer to periodically redeem some
securities to satisfy a sinking fund
provision. The issuer may retain some flexibility over the timing of
redemptions.
While all of these pose risk for investors, it is optional
redemption provisions that are of most concern. Issuers tend to exercise
such provisions for economic purposes—and market conditions that make a
redemption economically advantageous for an issuer tend to make it
economically disadvantageous for investors. The most common scenario is of
an issuer calling a bond after interest rates have fallen. The redemption
benefits the issuer, who is able to secure new financing at lower interest
rates. It hurts investors who are forced to reinvest at lower interest
rates.
Securities with optional redemption provisions are issued
with higher yields than comparable securities that
lack such provisions. The
extra yield is like an
option premium compensating investors for the
short
call option the redemption provision represents. Optional
redemption provisions may also have high call premiums. These make it
desirable for the issuer to call the security in only the most favorable
economic conditions—and mitigates the investors' loss in the event that a
redemption actually occurs.
Some optional redemption provisions have a declining call
premium specified as a call schedule. For example, a
USD 1,000 par value bond might have a USD
100 call premium for its first five years, a USD 50 call premium for the
next five years, and be callable at par after
that. Another safeguard for
investors is call
protection, which limits optional redemption during the first few
years of a security's life. Typically, this takes the form of a
prohibition against optional redemption during that period. The
first call date is the earliest date on which
the
security is fully callable.
A security can generally be called any time after its
issuance or first call date, usually with a month's notice or so. As a
practical matter, this may be limited to
coupon dates or dividend dates,
but some callable securities allow continuous
call, which is redemption on any business day. If a security is called between
coupon or dividend dates, accrued
interest is paid along with the call price.
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