The Plain Meaning of Dollar-Cost Averaging
Fixed-dollar investing buys more shares at low prices; a six-month example shows the math and its limits. Dollar-cost averaging is investing equal amounts at regular intervals, whatever the price. This guide defines it using SEC and FINRA wording, then works through six monthly purchases to show why the average cost per share lands below the average price, and why that still guarantees nothing. It separates a schedule you choose from the one a 401(k) creates automatically with each paycheck, explains what happens in a falling market, and covers per-purchase costs such as commissions and fractional-share rules. A short checklist at the end covers the setup questions to settle before the first recurring order.