A share buyback is the operation by which a company purchases its own shares on the market and, normally, retires them. It is the other big channel of shareholder remuneration alongside the dividend — and the quietest one: you receive nothing, but your slice of the pie grows.
When shares are retired, total earnings are split among fewer shares: earnings per share rise even if the business earns the same. For the dividend investor there is a very relevant second-order effect: with fewer shares outstanding, raising the dividend per share costs less total cash — today's buybacks finance tomorrow's dividend increases.
| Buyback | Dividend |
|---|
| Your taxation | Nothing until you sell (deferral) | Immediate withholding |
| Company flexibility | Can be cut without headlines | Cutting it is traumatic |
| Discipline | Depends on the price paid | Visible, measurable commitment |
| Your control | Value stays in the share | You receive cash and decide |
The metric uniting both is the shareholder yield: dividends plus (net) buybacks over market cap — the full picture of how much a company returns to its shareholders.
A buyback only creates value if shares are bought below intrinsic value; buying back expensive stock destroys value with everyone's money. Signals to watch: buybacks financed with growing debt, buybacks that merely offset stock-option dilution, and managements that buy back at the highs and stop at the lows (the opposite of rational). Free cash flow should comfortably cover the sum of dividend and buyback.
The pattern of the great compounders — many dividend aristocrats among them — is the combination: a sustained growing dividend plus opportunistic buybacks when the price cooperates. A share count falling year after year for a decade is one of the cleanest value-creation signals there is.
For tax deferral and when the stock is cheap, the buyback; for tangible income and capital discipline, the dividend. The best companies usually combine both — and the right answer depends on the price being paid.
Your percentage of the company grows without buying more shares: higher future earnings per share and dividend per share. The value shows up in the share price and in dividend increases, not in your bank account.
For the holding shareholder there is no tax event: that is their big advantage over dividends. You will be taxed via capital gains when you sell, ideally years later.