Quoted options to subscribe for shares, traded and financial options: losses
The main difference between a quoted option to subscribe for shares, traded options and financial options, and other options is that the abandonment of the option is treated as a disposal of the option. This means that if the owner of the option allows the option to expire they may be entitled to an allowable loss at the date of abandonment. As the disposal consideration is nil the loss will be the amount paid to acquire the option.
For the quantification of losses, see CG15812 - CG15813.