How Small Investments Make a Big Impact Over Time


This post is by Dorothy Neufeld from Visual Capitalist


See this visualization first on the Voronoi app.

This bar chart shows the power of compound interest and regular contributions over time.

How Small Investments Make a Big Impact Over Time

This was originally posted on our Voronoi app. Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources. Time is an investor’s biggest ally, even if they start with just a modest portfolio. The reason behind this is compounding interest, of course, thanks to its ability to magnify returns as interest earns interest on itself. With a fortune of $159 billion, Warren Buffett largely credits compound interest as a vital ingredient to his success—describing it like a snowball collecting snow as it rolls down a very long hill. This graphic shows how compound interest can dramatically impact the value of an investor’s portfolio over longer periods of time, based on data from Investor.gov.

Why Compound Interest is a Powerful Force

Below, we show how investing $100 each month, with a 10% annual return starting at the age of 25 can generate outsized returns by simply staying the course:
AgeTotal ContributionsInterestPortfolio Value
25$1,300$10$1,310
30$7,300$2,136$9,436
35$13,300$9,223$22,523
40$19,300$24,299$43,599
45$25,300$52,243$77,543
50$31,300$100,910$132,210
55$37,300$182,952$220,252
60$43,300$318,743$362,043
65$49,300$541,101$590,401
70$55,300$902,872$958,172
75$61,300$1,489,172$1,550,472

Portfolio value is at end of each time period. All time periods are five years except for the first year (Age 25) which (Read more…)