What is compound interest and how does it work

Compound interest is often referred to as the main force in investments. It sounds complicated, but in reality, the idea is simple: not only does your initial deposit earn income, but the already earned amount does as well. Let's break it down with an example.

Simple and Compound Interest — What's the Difference

With simple interest, income is calculated only from the initial amount. With compound interest, earnings are calculated on the accumulated amount as well. That means what you earn is not withdrawn, but continues to work further, generating its own income.

An Example for Clarity

Let's say you invested $1,000 at a nominal 10% per year. After one year, it's $1,100. In the second year, the 10% is calculated from $1,100 — resulting in $1,210, not $1,200. The difference may seem trivial at first, but over the years, it grows like a snowball. This is an illustrative calculation with rounded numbers and not a promise of specific returns.

Why Time Matters More Than the Amount

Compound interest reveals its magic over a long period. The longer money works, the more noticeable the effect — hence one who started earlier with a small amount often overtakes one who invested more but later. The main resource here is not the size of the capital, but the time.

How It Works in Investments

In stocks, compound interest kicks in through reinvestment: the dividends you receive are not spent but used to purchase new securities. In turn, these also start generating dividends. Thus, capital builds itself up.

How to Start

To activate this mechanism, you need access to the stock exchange and regularity. You can open an account and purchase dividend stocks and ETFs online, using the "Stock Broker" app — a broker licensed by the Ministry of Finance of Tajikistan with access to the US market. Most importantly, start: even small but regular investments work for you over time.

This material is for informational purposes only and is not individual investment advice. Investment returns are not guaranteed, past performance does not determine future results.