The simplest durable lesson here is this: an unusually high dividend yield is often a mathematical warning, not a gift. Core idea: Yield is the dividend divided by the price. When the price collapses because the market expects a cut, the yield looks temporarily massive. Why it matters: Chasing these visually attractive numbers usually ends in capturing the exact moment management slashes the payout. In real life: A 12% yield on a mature business is often the market pricing in a 50% cut next quarter. Common slip: Sorting stocks by highest yield and buying the top of the list without checking the payout sustainability. Try this: On the next review, write down the one variable that would make you change your mind. The point is not to memorize the label. The point is to know what variable is actually doing the work.