The IFRS governing the calculation and disclosure of earnings per share (EPS) is IAS 33. It requires that one measure–or two measures in the case of those reporting entities having complex capital structures–be presented for each period for which a statement of profit or loss and other comprehensive income is being reported. Some private entities wish to report a statistical measure of performance, and often choose to use EPS as the well-understood yardstick to employ. While these entities are not required to issue EPS data, when they elect to do so they must also comply with the requirements of IAS 33. In situations when both parent company and consolidated financial statements are presented, IAS 33 stipulates that the information called for by this standard need only be presented for consolidated information.