Investment Growth
Understanding how investments grow over time through compounding and contributions
What is investment growth?
Investment growth refers to the increase in value of an investment portfolio over time. Growth comes from investment returns such as interest, dividends, or capital appreciation, and is often accelerated by reinvesting gains.
What drives investment growth?
There are three main drivers of investment growth:
• The initial amount invested
• The rate of return earned each year
• Regular contributions added over time
When returns are reinvested, growth becomes exponential rather than linear.
How compound growth works
Compound growth occurs when investment returns are added back to the portfolio, allowing future returns to be calculated on a growing balance. Over long periods, compounding has a powerful effect on total value.
Example of investment growth
Annual contribution: $5,000
Annual return: 6%
Time horizon: 20 years
Each year, the balance grows from returns and new contributions, resulting in significant long-term portfolio growth.
Why time matters
Time is one of the most important factors in investment growth. The longer money remains invested, the more opportunities compounding has to multiply returns.
Starting earlier often matters more than investing larger amounts later.
Investment growth vs simple interest
Unlike simple interest, which is calculated only on the original amount, investment growth relies on compounding. This means returns themselves generate additional returns.
How investment growth is estimated
Investment growth calculators estimate future value by applying a consistent return rate and adding regular contributions over time. Results are estimates and do not guarantee future performance.