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The safest index funds aren’t always the ones everyone talks about. When our family started searching for the right mix to reach financial independence, we wanted steady growth without taking on too much risk. In this guide, you’ll discover 7 of the safest index funds that can help you grow your wealth and sleep better at night.

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Market swings—or even a sudden crash that wipes out a third of your portfolio’s value (as we’ve experienced ourselves)—can make you question whether you picked the “right” index funds.
Here’s the truth: if you’ve done your research, understand exactly what you own, and stay focused on long-term growth, those doubts fade with time.
In our case, the index funds in our portfolio not only recovered after downturns—they reached new highs. Over the years, our average annual return has been 20-30%, and we’re deeply grateful for that growth.
Our core holdings include the MSCI World, the S&P 500, and the S&P Information Technology Index (S&P IT)—together forming the backbone of our long-term financial independence strategy.
We also hold a small selection of individual stocks—mainly from Europe, Germany, and the U.S.—plus a modest amount of cryptocurrency (Marc’s IT background keeps him curious about the space).
That’s our current setup, but we may soon add one or more of the safest index funds from this list to further diversify our portfolio.

Disclaimer: We are not financial advisors and have no formal training in stock market investing. The 7 safest index funds listed here reflect our personal opinion, shaped by years of hands-on investing experience. For a deeper dive into market growth trends, you can also check out Marc’s separate blog post on decoding market growth.
Our selection includes 6 global indexes, 1 US index, and 1 “bonus” US index that ranks among our personal favorites. We’ve included US indexes because it remains the world’s leading economy and plays a major role in several of the global indexes listed.
The data for the table below comes from www.msci.com and www.investopedia.com.
| Index Fund | Average annual return rate (rounded since inception) | Diversification |
| MSCI World | 9 % (1975) | 1.500 companies from 23 countries = 73 % of all shares worldwide |
| MSCI ACWI (All Country World Index) | 8.1 % (1987) | 2.800 companies from 47 countries = 85 % of all shares worldwide |
| MSCI ACWI IMI (All Country World Investible Market Index) | 7.3 % (1994) | 9.100 companies from 47 countries = 99 % of all shares worldwide |
| MSCI ACWI All Cap | 6.5 % (2007) | 15.300 companies from 47 countries = 99 % of all shares worldwide |
| MSCI Emerging Markets | 9.5 % (1987) | 1.300 companies from 24 countries |
| MSCI World Small Cap | 8.8 % (2000) | 4.300 companies from 23 countries |
| S&P 500 | 10 % (1957) | 500 US companies |
| S&P 500 IT (our „bonus index“) | > 21 % (1996) | 65 US companies (only IT sector) |
The MSCI World (Morgan Stanley Capital International World) Index is the most popular one in Europe. People here refer to it as one of the safest Index Funds as it entails a worldwide approach. It consists of only large and mid-cap companies. In total around 1.500 of the biggest stock titles from 23 countries from developed markets.
That makes up around 73 % of all shares worldwide.
The ratio in-between the countries is not stable. With the real estate bubble and crisis of 2008 Americas ratio dropped to almost 43%. Today in 2024 it‘s > 70 % America, 6 % Japan, 4 % UK and so on.
The top 100 companies make up almost half of the index and the top 10 are US companies contributing around 18 % of the index.
The MSCI World covers around 55 % (> 49 trillion) of the world’s market cap (> 90 trillion).
The MSCI ACWI (All Country World) Index includes over 2.800 of the biggest stock titles from large and mid cap companies but only from 23 developed and 24 emerging markets.
That makes up around 85 % of all shares worldwide. If you buy an Index Fund or ETF mirroring this index you buy a huge part of the world’s economy so to say.
The MSCI ACWI IMI (All Country World Investible Market) Index includes around 9.100 stocks of large cap, mid cap and small cap companies but only from 23 developed and 24 emerging markets.
That makes up around 99 % of all shares worldwide. If you buy an Index Fund or ETF mirroring this index you buy almost the whole world’s economy.
The MSCI ACWI All Cap Index includes over 15.300 companies of large cap, mid cap, small cap and micro cap companies from 23 developed and 24 emerging markets. Micro caps are quite small companies with a market capitalization of less than around 250 to 300 million.
That index makes up around 99 % of all shares worldwide so that you truly buy the whole world’s economy.
The MSCI Emerging Markets Index concentrates on emerging markets like China or India. It includes over 1.300 large and mid cap companies from 24 emerging markets like China or India.
In 2022 Russia dropped out and was removed from the MSCI Emerging Markets Index because Russia closed its stock exchange. So far, until 2024, it was not included back yet. That‘s how a fund can reduce the risk for the investor as other countries filled the gap that Russias‘ drop-out left in that index.
MSCI World Small Cap Index includes over 4.300 small cap companies from around 23 developed markets.
By doing so it covers around 14 % of the free float-adjusted market capitalization in each country that is included in the index.
The S&P 500 is 100 % US based and is the most popular index in the US. People refer to it as one of the safest Index Funds because it has a long history of todays dominating economy and a 10 % return on average since inception.
The S&P 500 stands for Standard and Poor‘s 500. It was invented in 1957 from the rating agency Standard and Poor‘s even if its origins is even older.
The number 500 is because a committee of people decide which 500 large cap companies of the available 3.500 US stocks make it into the index so that those 500 companies change constantly. That makes it a more actively managed fund.
For example, in the 1980’s the S&P 500 was oil and gas dominated. Today oil stocks represent only around 3 to 4 % of that index. Instead Apple and Alphabet dominate which didn’t even exist back then.
That’s another great lesson in how index fund investing helps reduce risk—because as an investor, you don’t have to guess which individual companies will succeed.
The Top 10 companies of the S&P 500 make up around 27 % of the index and it covers around 35 % (> 32 trillion) of the world’s market cap (> 90 trillion) – status 2024.
The S&P 500 IT includes only 65 large cap companies from the IT sector in the US. It is a subindex of the S&P 500 that‘s why it is named this way.
The Top 10 companies of the S&P 500 IT make up around 76 % of the index and largest constituent over 23 % which is Microsoft in 2024.
Why did we include it in our list of the safest index funds for financial independence? Simply because we have full confidence in the S&P 500 Information Technology Index (S&P IT) as part of our long-term financial independence strategy.
So far, it has delivered remarkable returns that have significantly strengthened our portfolio—and we believe this momentum will continue, at least until we reach our semi-retirement goal.
The safest index funds are broadly diversified funds that track large, stable markets and include financially strong companies with long performance histories. Examples include the MSCI World, or other global indices like the Dow Jones Global Titans.
Index funds are generally safer than individual stocks because they spread risk across hundreds or thousands of companies. While they’re not risk-free, holding them long-term can form a strong foundation for a retirement or FIRE strategy.
Look for funds that offer broad diversification, low expense ratios, and a proven performance record from a reliable provider such as Vanguard. Avoid narrow or sector-heavy funds if your goal is stability.
Many investors on the path to financial independence make index funds the core of their portfolio—typically 80–90%, while allocating a smaller share to bonds, cash, or individual stocks for flexibility and growth balance.
We still hold a few individual stocks. For us, that’s part of a core and explore approach: keeping most of our investments in the safest index funds and ETFs while reserving a small portion to explore companies we believe in.
If you’re ready to go deeper, check out related posts on investing for passive income —it walks you through how to build a balanced, step-by-step portfolio that supports your financial independence goals.
Whatever path you take, know what you’re buying, stay consistent, and always do your own research. Over time, safety and patience often beat short-term excitement.

If you’re leaving today with even one new idea to improve your financial journey toward F.I.R.E., I’d love to keep inspiring you. If you haven’t already, join our growing community in the green footer below.
We regularly cover topics requested by our readers, so I’d love to hear from you:
What are your favorite “safest” index funds to invest in on your path to financial independence?
Share your picks in the comments—I read every one and can’t wait to hear your thoughts!
Title image source: Gilly on Unsplash
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