Measurement basis (paras. BC69-BC87)
BC69 The Board discussed the following measurement bases, to decide which should be applied in principle:
(a) historical cost
(b) intrinsic value
(c) minimum value
(d) fair value.
Historical cost
BC70 In jurisdictions where legislation permits, entities commonly repurchase their own shares, either directly or through a vehicle such as a trust, which are used to fulfil promised grants of shares to employees or the exercise of employee share options. A possible basis for measuring a grant of options or shares would be the historical cost (purchase price) of its own shares that an entity holds (own shares held), even if they were acquired before the award was made.
BC71 For share options, this would entail comparing the historical cost of own shares held with the exercise price of options granted to employees. Any shortfall would be recognised as an expense. Also, presumably, if the exercise price exceeded the historical cost of own shares held, the excess would be recognised as a gain.