Apr 2, 2025
 in 
Investing

ROI Meaning: What is Return on Investment & How to Calculate It | Nemo

If you’ve dipped your toes into the world of investing, you’ve probably come across the term ROI - short for Return on Investment. But what does it actually mean, and why is it so important? Simply put, ROI is a way of measuring how much money you’ve made (or lost) on an investment compared to how much you originally put in.

Think of ROI as a financial report card - it tells you whether your investments are paying off or if you should rethink your strategy. The higher the ROI, the better your investment is performing. If it’s negative, well… that’s a sign something’s gone wrong! 

What is ROI? The Basics

So, what is ROI, really? Put simply, it's a way to measure the profitability of an investment. It tells you how much money you've made (or lost) relative to the amount you invested. 

Why ROI Matters in Investing

Understanding ROI isn’t just for Wall Street pros - it’s essential for anyone who wants to make smart financial decisions. Here’s why ROI is a big deal:

  • Compare Investments Easily – ROI helps you compare different stocks, funds, or assets side by side to see which ones are performing best.
  • Set Financial Goals – Knowing your ROI can help you decide whether to hold, sell, or reinvest in an asset.
  • Avoid Bad Investments – A low or negative ROI is a red flag that something isn’t working, so you can cut your losses early.

Now that we’ve covered the return on investment meaning, let’s talk about how to actually calculate it.

How to Calculate ROI (Return on Investment)

Luckily, you don’t need to be a math whiz to figure out ROI. The formula is straightforward:

ROI (%) = [(Final Value of Investment - Initial Investment) / Initial Investment] x 100

Let’s break this down with an example:

Example 1: Investing in Stocks

Imagine you bought £1,000 worth of shares in a company, and after a year, those shares are worth £1,500. Here’s how you’d calculate ROI:

  • Final Value of Investment = £1,500
  • Initial Investment = £1,000
  • ROI = [(£1,500 - £1,000) / £1,000] x 100 = 50%

That means your investment has grown by 50%, which is a great return!

Example 2: A Loss on Investment

Not every investment goes to plan. Suppose you invest £2,000 in a stock, but its value drops to £1,500. Your ROI would be:

  • ROI = [(£1,500 - £2,000) / £2,000] x 100 = -25%

A negative ROI of -25% means you’ve lost a quarter of your investment. Ouch! But knowing this helps you adjust your strategy and make smarter choices in the future.

How to Improve Your ROI

If you want to maximize your returns, here are some strategies to consider:

  • Diversify Your Investments – Don’t put all your money into one stock or asset. Spread it out to reduce risk.
  • Lower Your Costs – High fees and commissions can eat into your profits. Look for low-cost brokers and funds.
  • Invest for the Long Term – Short-term trading can be risky. Long-term investments tend to yield better returns over time.
  • Stay Informed – Keep up with market trends, economic news, and company performance to make smarter investment choices.
  • Do Your Research: Before investing, thoroughly research the company or asset. Understand its potential and risks.
  • Regular Review: Periodically review your portfolio and make adjustments as needed.

ROI vs. Other Investment Metrics

ROI is a great starting point, but it’s not the only metric investors use. Here are a few other key performance indicators:

  • Annualized Return – This adjusts ROI to reflect how long an investment was held, giving a clearer picture of yearly performance.
  • Net Present Value (NPV) – Used to assess long-term investments by factoring in the time value of money.
  • Internal Rate of Return (IRR) – A more complex metric that considers cash flows over time.

While ROI is simple and useful, these additional measures can provide a more complete analysis of an investment’s performance.

ROI and Nemo Money: Your Investment Partner

At Nemo Money, we're here to help you navigate the world of investing with confidence. Our app and website provide you with the tools and resources you need to make informed decisions, and achieve your financial goals.

We understand that investing can be daunting, but with a solid understanding of ROI and a little help from Nemo Money, you'll be well on your way to building a successful portfolio.

Final Thoughts: Making ROI Work for You

Understanding ROI is a game-changer for investors. Whether you’re buying stocks, real estate, or starting a business, knowing how to calculate and interpret ROI can help you make smarter financial decisions.

So next time someone asks, “What is ROI?” you’ll not only know the answer but also how to use it to grow your wealth. Ready to start investing? With tools like Nemo Money, you can make informed decisions that set you up for financial success! The Nemo Money app even  has a handy AI feature, allowing you to ask your investing questions easily. The app also has a variety of educational and learning resources, perfect for beginners!

Why not start your investing journey with Nemo Money? New Nemo Money users can grab our registration bonus up to a maximum of $50 on first deposit. Terms and conditions & terms of use apply. You’ve got this! Happy investing!

Han Tan

Han Tan is a seasoned financial journalist and news presenter renowned for his expertise in global markets. With a career highlighted by interviews with prominent figures and recognition from major media outlets like CNN and Reuters, he delivers insightful analysis on market news and macroeconomic trends to clients and international audiences. Han's sharp commentary on currencies, stocks, and commodities is familiar to viewers of Bloomberg TV Malaysia, BFM 89.9, and NTV7, cementing his sterling reputation in the industry.