ETF Time Machine

How ETF dividend reinvestment (DRIP) works

Learn what DRIP means for ETF returns, how reinvested dividends compound, and how to chart total return versus price return.

6 min read · Updated 2026-09-15

When people quote an ETF’s “return,” they often mean price change only — the share price went up or down. That understates what a buy-and-hold investor who reinvested dividends actually earned. Dividend reinvestment, often called DRIP, turns cash distributions into more shares so compounding includes income as well as price.

What DRIP does on each ex-dividend day

With DRIP enabled, the model assumes cash dividends buy additional shares on each ex-dividend day at that day’s closing price. Stock splits adjust share count when they occur. Nothing relies on a pre-baked “adjusted close” series; splits and dividends are applied to share count at runtime.

  • DRIP on → total return path (price + reinvested dividends).
  • DRIP off → price return only (dividends ignored as cash left on the sidelines).
  • Same $10,000 start makes two ETFs easy to compare on one chart.

Why DRIP matters more for some ETFs

High-dividend and bond funds distribute more cash along the way. Over long periods, ignoring those distributions can make two funds look closer (or farther apart) than a reinvested investor experienced. Growth-heavy funds that pay little may show a smaller DRIP gap — but the clean habit is still to compare total return when you care about wealth, not just price.

Try the calculator below with DRIP on, then toggle it off on the results page to see the gap for the same dates.

What this is not

Historical DRIP charts are illustrations. They do not include taxes, account fees, bid–ask spreads, or your personal contribution schedule. They are not investment advice.

Try it yourself

Run a live $10,000 historical backtest with optional dividend reinvestment.

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