CFM22250 | Accounting for corporate finance: UK GAAP before 1 January 2005: lenders: mark to market: convertibles
From HM Revenue & Customs · Corporate Finance Manual
Accounting for convertible securities
The market value of a convertible is difficult to calculate. This is because the convertible includes an option to convert. The value of an option depends upon, amongst other factors, the time to the option date and the volatility of the underlying share.