Slide 15.10 Pure Discount Bonds
Slide 15.11 Pure Discount Bonds Example
Zero coupon bonds are bonds that are offered at deep discounts because there
are no periodic coupon payments. Although no cash interest is
paid, firms deduct the implicit interest, while holders report it as
income. Interest expense equals the periodic change in the
amortized value of the bond. (Although not covered specifically in
the text, we include discussion and slides on discount bonds to
further understanding and help students with end of chapter
problems on the topic.)
Lecture Tip: Most students are familiar with Series EE savings bonds. Point
out that these are actually zero coupon bonds. The investor pays
one-half of the face value and must hold the bond for a given
number of years before the face value is realized. As with any
other zero-coupon bond, reinvestment risk is eliminated, but an
additional benefit of EE bonds is that, unlike corporate zeroes, the
investor need not pay taxes on the accrued interest until the bond
is redeemed. Further, it should be noted that interest on these
bonds is exempt from state income taxes. And, savings bonds yields
are indexed to Treasury rates.
Lecture Tip: A popular financial innovation is Treasury “strips.” You might
want to take a few minutes to describe these instruments and use
them as a springboard for a discussion of value additivity and/or
an example of cash flow valuation in practice.
Treasury strips are created when a coupon-bearing Treasury issue is
purchased, placed in escrow, and the coupon payments are
“stripped away” from the principal portion. Each component is
then sold separately to investors with different objectives: the
coupon portion is purchased by those desirous of safe current
income, while the principal portion is purchased by those with
cash needs in the future. (The latter portion is, in essence, a
synthetically created zero-coupon bond.) Merrill Lynch was the first to offer
these instruments, calling them “TIGRs” (Treasury Investment
Growth Receipts), soon to be followed by Salomon Brothers’ CATs
(Certificates of Accrual of Treasury securities).\
Lecture Tip: While unusual, there have been some circumstances
where T-bills (and similar securities from other governments) sold
above par even though they are zero coupon. For example, during
the financial crisis in 2008-2009, T-bills sold above face, as
investors undertook a “flight to quality.” In this case, the investors
are essentially paying the government to protect their money for a
period of time.