Crypto, shares or Cash? Understanding where cryptocurrency fits in a diversified investment portfolio

South African investors today have access to more investment opportunities than ever before. From shares and exchange-traded funds (ETFs) to fixed deposits, property and offshore assets, investors have a growing number of ways to build wealth. More recently, cryptocurrencies has established itself as an emerging asset class, attracting interest from both experienced investors, institutions and those seeking exposure to innovative financial technologies.

While crypto has become one of the most talked-about and best performing investment asset classes over a 10 year period, experts caution that it should be viewed as one component of a diversified investment portfolio rather than a replacement for traditional investments.

“Successful investing has never been about finding a single winning asset class,” says Sebastian Pillay, Head of Share Investing at FNB Wealth and Investments. “It’s about building a diversified portfolio that balances risk and opportunity across different market conditions. Crypto can play a role in that portfolio, but it should be considered alongside other investments in your portfolio as well as your investment time horizon.

As investor demand for digital assets continues to grow, FNB has introduced cryptocurrency investing through its platform, enabling customers to access digital assets within the broader FNB investment ecosystem.

The growing popularity of cryptocurrencies reflects a broader shift in how people think about investing. Once viewed with scepticism, digital assets are becoming increasingly mainstream, particularly in markets where clearer regulation is supporting responsible growth, innovation and financial inclusion. This shift is also reflected in growing engagement from global financial institutions, asset managers and regulators. As regulatory frameworks evolve, they are providing greater clarity and consumer protection, helping digital assets mature alongside traditional financial markets.

“Cryptocurrencies are used for payments, remittances, investments and, in some cases, as a store of value,” says Pillay. “The growth in adoption and practical use cases has contributed significantly to investor interest and new market opportunities, fostering innovation and improving competitiveness in favour of clients

However, while crypto continues to capture headlines, investment professionals believe it should be considered within the context of an investor’s overall financial goals. Pillay, explains that each asset class serves a different purpose.

“Cash provides liquidity and stability. Equities offer long-term growth potential. Fixed-income investments can help reduce portfolio volatility with income distribution. Crypto sits within the alternative investment category and can provide diversification and exposure to an emerging global asset class although it commands a higher risk adjusted return appetite.”

One of the key attractions of cryptocurrency is its decentralised nature. “Its decentralised and fractional structure is what differentiates it from many traditional asset classes,” says Pillay. “It gives investors exposure to a new financial market that operates around the clock and is not directly controlled by any single government or central bank.”

For many investors, the appeal of crypto extends beyond performance. It represents exposure to blockchain technology and participation in an evolving global financial ecosystem that continues to develop new applications and use cases.

At the same time, experts argue that diversification remains essential. “Crypto should complement a portfolio, not define it,” says Pillay. “Investors should avoid concentrating all their wealth in a single asset class, regardless of how attractive recent returns may appear. Diversification remains one of the most effective ways to manage risk, and not all crypto tokens share the same risk profile.”

This approach has become increasingly relevant as investors navigate economic uncertainty, market volatility, inflation concerns and shifting global conditions. 

Through FNB’s investment platform, customers can access a variety of investment solutions, including local and global shares, ETFs, unit trusts, fixed deposits and now cryptocurrencies. This enables investors to manage multiple components of their portfolios through a single trusted platform.

Despite its growing acceptance, cryptocurrency investing is not without risk. Digital assets remain significantly more volatile than many traditional investments, with prices often experiencing substantial movements over short periods.

“There is sometimes a misconception that investing in crypto can generate significant returns,” says Pillay. “The reality is that crypto is highly volatile and should only form part of a broader investment strategy. We continue to believe strongly in the principles of diversification and long-term investing.”

Investors should also ensure they work with reputable and regulated providers when accessing digital assets.

“As regulation evolves, investor protection becomes increasingly important,” says Pillay “Customers should always ensure they are investing through approved FSCA providers and trusted platforms that meet the necessary regulatory and governance requirements.”

Ultimately, the decision to invest in crypto should form part of a broader wealth-building strategy aligned to an individual’s financial goals, risk appetite and investment horizon.

While cryptocurrency has earned its place within the modern investment landscape, the fundamentals of successful investing remain unchanged: diversify your portfolio, invest for the long term and focus on building sustainable wealth over time.

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