Share Buyback & Cancellation EPS Calculator (treasury shares retired → EPS, ownership)

How it works

Earnings per share (EPS) = net income ÷ shares outstanding. Cancelling treasury shares removes them for good, so the same profit is divided among fewer shares: EPS after = (net income − interest lost on the cash spent) ÷ (shares − shares cancelled). Each remaining shareholder’s stake rises by shares ÷ (shares − cancelled) − 1. Treasury shares that are merely held (not cancelled) are already excluded from shares outstanding in EPS, so the cancellation itself changes EPS only when the shares are newly bought back. P/E = price ÷ EPS. Not investment advice; independent calculator, not affiliated with any company.

⚠ Estimates for information only — not financial advice.

FAQ

Does buying back shares raise EPS if they are not cancelled?

Yes for EPS, because treasury shares are left out of the share count. Cancelling makes it permanent: the shares cannot be sold back into the market later.

Why can EPS rise less than the share count falls?

The cash used for the buyback no longer earns interest, so profit can fall slightly. Enter that rate to see the effect.

Checked 11 Nov 2026. EPS definition: K-IFRS 1033 / IAS 33 Earnings per Share (weighted shares outstanding, treasury shares excluded). Buyback and cancellation figures: DART notices “자기주식 취득 결정” and “주식소각 결정”.