How Dividend Reinvestment Plans (DRIP) Work
A Dividend Reinvestment Plan (DRIP) allows investors to automatically reinvest the cash dividends they receive from a company into additional shares of that same company. By continually reinvesting, you increase your share count, which in turn increases your future dividend payments. Over time, this creates a powerful "snowball effect" of compound growth.
The Mathematical Formula Used
Our calculator iterates through each compounding period (quarterly or annually) and applies both capital appreciation and dividend reinvestment logic:
Value_new = Value_old * (1 + Appreciation_Rate) + [Value_old * (1 + Appreciation_Rate) * Dividend_Yield]
This loop is repeated for the total number of periods (e.g., 40 periods for 10 years of quarterly distributions).
A Quick Practical Example
Imagine you have a starting portfolio of $10,000 in a stable dividend stock:
- The stock has an average Annual Dividend Yield of 4% and grows in price by 5% annually.
- You choose to automatically reinvest dividends quarterly for 20 years.
- Without adding any new money, your portfolio would grow to roughly $58,000.
- More importantly, your new portfolio would generate over $2,300 per year in pure passive income from dividends alone.