Three yields, and they answer different questions
dividend yield = annual dividend ÷ current price
yield on cost = annual dividend ÷ the price you paid
payout ratio = annual dividend ÷ earnings per share
Yield is what a new buyer gets today. It is the comparison number — the only one that puts this holding next to any other.
Yield on cost is what your own purchase pays you. A stock bought at $38 now paying $2.10 yields 5.5% on your money while showing 4.0% on the screen. It is a satisfying number and it is not a decision input: it says something about the past, and the capital in the position is worth today's price, not what you paid.
Payout ratio is the safety check, and it is the one this page treats as primary.
Why a high yield is usually bad news
Yield is a fraction with price on the bottom. It rises when the dividend rises — and it rises identically when the price falls.
Sort any screener by yield and the top of the list is mostly companies whose shares have dropped hard, often because the market expects the dividend to be cut. The yield shown is calculated from a payment that may not be made again. This is the yield trap, and it is not rare: it is the default condition of high-yield screens.
The payout ratio separates the two cases:
| Payout ratio | Reading |
|---|---|
| Under 40% | Comfortable, room to grow the dividend |
| 40–60% | Normal for a mature profitable company |
| 60–80% | Little room for a weak year |
| Over 80% | Fragile outside utilities and REITs, where it is structural |
| Over 100% | Paying out more than it earns — funded by cash, debt or asset sales |
What the ratio does not catch
Earnings are an accounting figure and dividends are paid in cash, so the two can diverge for years. A company with heavy non-cash charges can show a payout ratio above 100% and cover the dividend comfortably from cash flow; another can look safe on earnings and be borrowing to pay.
For a serious check, compare the dividend against free cash flow rather than earnings. REITs are the clearest case — they are legally required to distribute most of their income and are properly assessed on funds from operations, not EPS, so a payout ratio above 100% there is normal rather than alarming.