Monte Carlo analysis of convertible bonds with reset clauses

Monte Carlo analysis of convertible bonds with reset clauses

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Article ID: iaor20063439
Country: Netherlands
Volume: 168
Issue: 2
Start Page Number: 301
End Page Number: 310
Publication Date: Jan 2006
Journal: European Journal of Operational Research
Authors: ,
Keywords: simulation: applications
Abstract:

This paper analyzes some features of non-callable convertible bonds with reset clauses via both analytic and Monte Carlo simulation approaches. Assume that the underlying stock receives no dividends and that it has credit risk of the issuer. We mean by reset that the conversion price is adjusted downwards if the underlying stock price does not exceed pre-specified prices. Reset convertibles are usually issued when the outlook for the issuer is unfavorable. The price of any convertible bonds can be approximately viewed as a sum of values of an otherwise identical non-convertible bond plus an embedded option to convert the bond into the underlying stock. In this paper, we first develop an exact formula for the conversion option value of the European riskless convertible in the classical Black–Scholes–Merton framework. It is shown by Monte Carlo simulation that conversion option value estimates of the American risky convertible are located in a certain region defined by this formula. From estimates of the conversion probability, it is also shown that there exists an optimal reset time in the latter half of the trading interval.

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