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Some corporate
bonds and most preferred
stock have sinking fund provisions.
These require
the issuer to set aside funds and retire a specified amount of the
outstanding securities each
year. Securities can be retired in two ways:
Securities
may be purchased in the secondary market and then retired.
Securities may be
called. Usually, the
call price is the security's
par value. The
specific securities to be retired each year are determined by
random lottery.
Sinking fund schedules vary. They generally require that a
fixed number of securities be retired each year. For preferred stock,
retirements continue until the entire issue has been retired. For bonds,
anywhere from 20% to 100% of an issue will be retired prior to maturity.
The issuer may have options to postpone retirements for the first few
years or to accelerate retirements. The latter option may be used by a
bond issuer to refund some
bonds that otherwise would not be callable.
Sinking funds serve different purposes for preferred
stock and bonds. For preferred stock, they transform the securities from
permanent capital to a form of long-term funding comparable to a
corporate
bond. Unlike corporate bonds, the preferred stock retains the flexibility
to skip some dividend payments.
For bonds, a sinking fund provides investors with
assurance that the issuer will be responsible in setting aside earnings
and retiring the debt. Failure to do so would mean that all the bonds'
principal would come due on the maturity date.
This could pose
liquidity risk, especially if
the issuer's credit quality
declines in the interim. For this reason, the failure of an issuer to
honor a sinking fund provision constitutes a default.
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