Convertible Bonds: Matching Financial And Real Options

For companies whose value consists in large part of “real options”‐ growth opportunities that may (or may not) materialize‐convertible bonds may offer the ideal financing vehicle because of the matching financial options built into the securities. This paper proposes that convertible debt can be a key element in a financing strategy that aims not only to fund current activities, but to give companies access to low‐cost capital if and when their real investment options turn out to be valuable. In this sense, convertibles can be seen as the most cost‐effective solution to a sequential financing problem‐how to fund not only today's activities, but also tomorrow's growth opportunities (some of them not yet even foreseeable). For companies with real options, the ability of convertibles to match capital inflows with corporate outlays adds value by minimizing two sets of costs: those associated with having too much (particularly equity) capital (known as “agency costs of free cash flow”) and those associated with having too little (“new issue” costs). The key to the cost‐effectiveness of convertibles in funding real options is the call provision. Provided the stock price is “in the money” (and the call protection period is over), the call gives managers the option to force conversion of the bonds into equity. If and when the company's investment opportunity materializes, exercise of the call feature gives the firm an infusion of new equity (while eliminating the debt service burden associated with the convertible) that enables it to carry out its new investment plan. Consistent with this argument, the author's recent study of the investment and financing activities of 289 companies around the time of convertible calls reports significant increases in capital expenditures starting in the year of the call and extending three years after. The companies also showed increased financing activity following the call, mainly new long‐term debt issues (many of them also convertibles) in the year of the call.