Use the following to answer the question(s) below:
In its 2018 annual report to shareholders, Health Foods, Inc., disclosed the following information
about some of its indebtedness:
The fair value of convertible subordinated debentures is estimated using quoted market prices.
Book amounts and estimated fair values of our financial instruments other than those for which
book amounts approximate fair values as noted above are as follows (in thousands)
Convertible subordinated debentures
In addition, the company disclosed the following:
We have outstanding zero coupon convertible subordinated debentures which had a book amount
of approximately $158.8 million and $151.4 million at September 26, 2018, and September 28,
2017, respectively. The debentures have an effective yield to maturity of 5 percent and a
principal amount at maturity on March 2, 2032, of approximately $308.8 million. The debentures
are convertible at the option of the holder, at any time on or prior to maturity, unless previously
redeemed or otherwise purchased. The debentures have a conversion rate of 10.64 shares per
$1,000 principal amount at maturity, representing 3,285,632 shares. The debentures may be
redeemed at the option of the holder on March 2, 2022, or March 2, 2027, at the issue price plus
accrued original discount totaling approximately $188 million and $241 million, respectively.
229) Required: Explain why the estimated fair value of the debentures exceeds their book
amount at the end of fiscal year 2018.