Unit 3 · Equities

Dividends

5 min read Lesson 3 of 4

Some of the most reliable investors in the world — retirees living off their portfolios, endowments funding scholarships — care less about a stock's price going up and far more about one specific thing: whether it pays them cash, regularly, just for holding it.

What dividends are, and why companies pay them

A dividend is a portion of a company's profits paid out directly to shareholders, usually in cash, on a regular schedule (often quarterly). Not every company pays one — a dividend is entirely optional, decided by the company's board of directors based on how much profit the company has and how it wants to use it.

Companies pay dividends for a fairly simple reason: once a mature, profitable business has funded all the growth opportunities it can productively invest in, it often generates more cash than it actually needs to reinvest in itself. Rather than let that cash sit idle or spend it on projects with poor returns, the company returns it to the people who own the business — its shareholders. Paying a steady, reliable dividend also signals financial health and confidence to the market, and attracts a specific type of investor who values steady income over rapid growth.

Dividend yield as part of total return

To compare dividend payouts across different stocks fairly, investors use dividend yield — the annual dividend per share expressed as a percentage of the stock's current price.

Dividend yield = Annual Dividend Per Share ÷ Share Price × 100%

Dividend yield matters because a stock's total return — the complete measure of what an investment actually earned you — comes from two sources added together: the change in the stock's price (capital appreciation or loss), plus any dividends received along the way. A stock that barely moves in price but pays a steady 4% dividend yield every year can still be a solid long-term investment, purely from the income, even without any price appreciation at all.

Total return = Price change (%) + Dividend yield (%) Example: Stock price unchanged for the year, dividend yield 4% Total return = 0% + 4% = 4%

Growth companies vs income companies: why Tesla doesn't pay dividends

Companies broadly fall into two camps when it comes to what they do with profit. Income companies — typically large, mature, slower-growing businesses like utilities, banks, or established consumer brands — tend to pay generous, steady dividends, because they don't have enough high-return internal projects to reinvest all their profits into, so returning cash to shareholders is the most productive use of it. Growth companies — typically younger, fast-expanding businesses — tend to reinvest every dollar of profit (or even operate at a loss while scaling) back into the business: new factories, research and development, expansion into new markets, because management believes reinvesting the money will generate a far higher return than simply handing it to shareholders as cash.

Tesla is a well-known example of a growth company that has historically paid no dividend at all, despite becoming a large, valuable company. Tesla's management has consistently chosen to reinvest available cash into expanding factories ("Gigafactories"), developing new vehicle models, and building out battery and software capabilities, betting that shareholders will benefit far more from that growth showing up in the stock price than they would from a small quarterly cash payout. Whether that bet is correct is a judgment call every investor has to make for themselves — but the underlying logic (reinvest for growth vs distribute as income) is what separates growth companies from income companies across the entire market, not just Tesla.

Dividend reinvestment

Dividend reinvestment means automatically using the cash dividend you receive to buy more shares of the same stock, rather than withdrawing it as spendable cash — often set up automatically through a broker's DRIP (dividend reinvestment plan). This matters enormously over long periods, because it compounds: each reinvested dividend buys you slightly more shares, which then earn their own dividends next period, which buy even more shares, and so on — the exact same "interest on interest" logic from Lesson 1.3, just applied to shares instead of cash. Historically, a very large portion of the stock market's long-run total return has come specifically from reinvested dividends compounding over time, not just from prices rising — which is why many long-term investors automatically reinvest dividends rather than take them as cash.

Self-check

A stock pays a $2 annual dividend and trades at $40. What is the dividend yield?

Reveal Answer

Dividend yield = $2 ÷ $40 × 100% = 5%. For every $40 you invest in this stock at its current price, you'd receive $2 a year in dividend income, before accounting for any change in the share price itself. If the price later rose to $50 with the dividend unchanged, the yield on the new price would fall to 4% ($2 ÷ $50) — dividend yield moves inversely with price when the dividend amount stays fixed, which is worth remembering when you see a stock with a seemingly attractive high yield: it can sometimes mean the price has recently fallen sharply, not that the company suddenly became more generous.

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