The option count is not always the incremental share count for diluted EPS

A schedule containing 20,000 options does not automatically mean adding 20,000 shares to the diluted EPS denominator. For a simple option arrangement, the calculation considers the assumed proceeds associated with exercise and identifies the incremental share effect. Copying the award count directly can overstate that effect.

The IAS 33 approach for options and warrants is described in paragraphs 45–48, also reproduced in the New Zealand equivalent published by XRB. The method compares assumed exercise proceeds with shares at the period's average market price. This is a reporting assumption; it does not establish that management will actually buy shares in the market.

Use a clearly bounded case before adding complexity. The illustration below assumes fully vested, equity-settled options outstanding for the full period, one ordinary share class, no future-service component in the assumed proceeds and positive continuing-operations earnings. Other terms require additional assessment.

Suppose a fictional company has 20,000 options with a $6 exercise price and an average ordinary share market price of $10 during the period. Assumed exercise proceeds are 20,000 multiplied by $6, or $120,000. At the $10 average price, that amount corresponds to 12,000 shares.

The difference between the 20,000 shares associated with exercise and those 12,000 shares is 8,000 incremental shares. In this simplified case, it is the 8,000 that enters the diluted denominator, subject to the dilution test. The full option count remains in the separate award inventory.

If basic weighted shares are 100,000 and relevant earnings are $216,000, basic EPS is $2.16. Adding 8,000 incremental shares produces a diluted denominator of 108,000 and diluted EPS of $2.00. Adding all 20,000 options instead would produce $1.80 and would not reproduce the stated method.

The exercise price comes from the instrument's terms. The average market price describes the reporting period. A closing market quote cannot simply replace that average because it is easier to retrieve. Retain the price source, covered dates and supported averaging method with the calculation.

For a sensitivity check, hold the fictional option count and $6 exercise price constant while changing the average market price to $8. The $120,000 of assumed proceeds then corresponds to 15,000 shares, leaving 5,000 incremental shares. At a $12 average price, the same proceeds correspond to 10,000 shares, leaving 10,000 incremental shares.

These changes occur without issuing a new option. They show why a period's incremental share effect can move even when the award inventory is unchanged. Explain the price-input movement separately from grants, exercises, cancellations and expiries when reconciling one reporting period to the next.

Save the dated price observations used for the approved average, including any explained corporate-action adjustments. A live market-data formula can change after the reporting file is signed off. Preserve the accepted input separately so a later refresh does not silently rewrite the evidence behind an already published denominator.

For this simple case, an average price at or below the exercise price does not create the positive incremental effect illustrated above. Investigate a negative result rather than subtracting hypothetical shares from the denominator. The overall antidilution assessment remains a separate required part of the calculation.

The $120,000 is an assumed input to this EPS model. It is not evidence that option holders exercised, that the company received cash or that a repurchase occurred. An operational cash forecast should use supported transaction expectations and actual receipts, with the relevant timing and uncertainty.

Keep any actual exercise record separate from the dilution worksheet. Once shares are actually issued, the ordinary share schedule needs the real quantity and date under the applicable reporting requirements. Leaving the same shares in both an actual count and a hypothetical adjustment can double count their effect.

Use labels that make the distinction visible. A column called assumed proceeds for diluted EPS is easier to interpret than an unlabeled cash column beside the treasury forecast. If the worksheet feeds another model, document which outputs are reporting measures and which represent actual transactions.

Employee arrangements may involve service or performance conditions, and their assumed proceeds can require more than the cash exercise price. XRB's equivalent standard identifies future goods or services in the relevant share-based-payment treatment. Do not apply the illustration's fully vested assumption to an unvested award without reviewing those requirements.

Also establish the period for which the instrument was outstanding. The example assumes a full period solely to isolate the incremental-share calculation. A grant, exercise or expiry during the year needs the appropriate period treatment and a reconciliation with any ordinary shares actually issued.

Group instruments only when the grouping preserves their relevant terms and calculation. Two tranches with different exercise prices should not be replaced by an unsupported average that hides an excluded tranche or changes the modeled increment. Retain enough detail for a reviewer to rebuild each material contribution.

Reconcile basic weighted shares to the diluted denominator and explain the important instrument effects. Keep the earnings numerator consistent with the type of instrument being assessed. This option-only example does not justify leaving the numerator unchanged for every convertible or share-settled arrangement.

A diluted EPS denominator also answers a different question from a negotiated ownership table. A financing discussion may use a contractual fully diluted definition that includes an option pool on a different basis. Label both measures and retain their definitions instead of forcing them to agree.

The review should end with the actual option inventory, the supported reporting assumptions and the incremental share bridge. That combination explains why 20,000 options produced 8,000 additional reporting shares in the illustration, while preserving the information needed for cash planning and ownership decisions.