What is dividend yield

Dividend yield measures how much a stock pays in dividends relative to its price. It is the favourite metric of income investors — and one of the easiest to misread, because it moves for two completely different reasons.

The formula

yield = (dividends per share over 12 months ÷ share price) × 100

Example: a stock trading at $30 that paid $2.10 per share over the year yields 2.10 ÷ 30 = 7%.

A dividend is not money from nowhere

This is the fact that changes how you read the metric, and it is almost never stated.

On the ex-dividend date — the first day a buyer no longer receives the payment — the share price drops, typically by roughly the dividend amount. It makes sense: cash left the company and went to shareholders, so the company is worth that much less.

In other words, receiving a dividend is not automatic gain; it is a transfer from one pocket (the share price) to another (your account). The real gain comes from the company generating enough profit to replace that cash — not from the payment itself.

That knocks down two common ideas: buying a stock "just to capture the dividend" right before the ex-date does not generate profit, and a dividend portfolio is not, by construction, safer than a growth one.

Current yield versus yield on cost

These are two different numbers, and confusing them produces unjustified optimism.

• Current yield: dividend ÷ today's price. This is what matters to someone buying now.
• Yield on cost: dividend ÷ the price you paid. If you bought at $15 and the company pays $2.10, your yield on cost is 14%, while the current yield is 7%.

Yield on cost is a pleasant number and nearly useless for decisions: it describes the past. The relevant question when holding or selling is always about today's price, because that is the capital tied up in the position.

The metric that gives yield meaning: the payout ratio

payout ratio = dividends ÷ net income × 100

The payout ratio says what fraction of profit is being distributed. A company earning $3.00 per share and paying $2.10 has a 70% payout — high, but plausible for a mature business that does not need heavy reinvestment to grow.

The warning sign is a payout above 100%: the company is paying out more than it earns, funding dividends from accumulated cash, asset sales or debt. That can last a year or two; it does not last ten.

Why a very high yield is usually a warning

The price sits in the denominator. That means yield rises when the company pays more or when the stock collapses — and the second cause is more common among extreme yields.

The classic pattern runs like this: the stock falls 50% on a real problem in the business, the yield calculated on past dividends doubles, the name appears at the top of "highest dividend payers" screens, and a few months later the company cuts the dividend. Anyone who bought for the number receives less and carries the decline as well.

Hence the minimum check before using yield: is the dividend recurring, or was there a one-off event? Asset sales, special distributions and non-operating profit inflate a single year's yield and do not repeat.

Frequently asked questions

What is a good dividend yield? It depends on the sector and on where interest rates sit. When bonds pay well, a yield must be higher to compete. Comparing a stock's yield against others in the same sector tells you far more than comparing it to an absolute number.

Are companies that pay no dividend worse? Not necessarily. Growth companies reinvest profit because they can earn more inside the business than the shareholder would outside it. Paying no dividend is a capital-allocation decision, not a defect.

How are dividends taxed? In the US, qualified dividends are taxed at long-term capital gains rates while ordinary dividends are taxed as regular income, and the qualification depends partly on a holding-period requirement. In a tax-advantaged account the distinction disappears — which is one reason income strategies are often placed there.

How do I project monthly income from dividends? Multiply capital by the expected yield and divide by 12, but treat the result as a wide estimate: dividends are neither fixed nor monthly, they vary with profit and can be suspended. Predictable income is a feature of bonds, not of stocks.