Dividend reinvestment (DRIP) calculator
See how reinvesting your dividends could compound your position — and grow your annual income — versus taking the cash.
Why reinvesting matters
A DRIP (dividend reinvestment plan) uses each dividend to buy more shares instead of paying you cash. Those extra shares pay their own dividends next time — so both your position and your income compound. Over long horizons, reinvested dividends have historically made up a large share of total return.
This model grows the dividend and the share price at the rates you enter and, if reinvesting, buys new shares each year with the dividend. It ignores taxes, fees, and the fact that real dividends and prices move unevenly.
Illustrative projection, not a forecast or a guaranteed return. Educational tool, not financial advice. Your figures never leave the page — the calculation runs entirely in your browser. The page loads standard pageview analytics, which never sees your numbers.
This math stops at what you typed in.
Tradune runs it continuously on your real holdings — with your money-weighted return next to a buy-and-hold SPY twin, and SEC insider filings flagged on the stocks you own.
Educational analytics — not investment advice.