The new stock market year 2026 has begun and brings with it a complex environment for investors.
After the turbulent previous years, which were characterized by geopolitical tensions, interest rate changes and technological upheaval, the central question arises: How can you build a portfolio that both offers stability and specifically benefits from growth opportunities?
The challenge is to be neither too conservative nor too speculative. Anyone who relies exclusively on broadly diversified indices may miss out on attractive return opportunities in dynamic future areas. However, if you focus too much on individual trends or sectors, you risk significant losses if the market direction changes. The solution lies in a structured combination: the core-satellite strategy.
This strategy systematically combines a broadly diversified basic portfolio with focused additional investments. The core, the so-called core, consists of low-cost ETFs that cover broad markets and ensure long-term stability. This core is supplemented by so-called satellites, i.e. targeted thematic investments with higher return potential. While the core typically makes up 70 to 80 percent of the portfolio and dampens fluctuations, the satellites, at 20 to 30 percent, offer the chance of excess returns in promising future areas.
This division creates a balanced risk-reward profile while preventing too much concentration on individual bets. The decisive advantage: The portfolio remains flexibly adaptable without jeopardizing the stable basis. Satellites can be exchanged or adjusted depending on the market phase, while the core continuously adds value.
The Vanguard S&P 500 UCITS ETF (USD) Distributing (ISIN IE00B3XXRP09 / WKN A1JX53) is ideal as the basis for such a portfolio. With over 500 individual stocks from the largest US companies, this ETF offers access to the world’s most important stock market. The impressive fund volume of 43.2 billion euros underlines the popularity of the product, while the total expense ratio of just 0.07 percent annually is one of the cheapest on the market. The ETF physically tracks the S&P 500 Index through full replication and pays dividends quarterly. The broad diversification across all important US sectors makes the ETF the ideal stability anchor for any long-term portfolio.
In addition to this solid foundation, two focused technology ETFs are available as satellite components. The L&G Cyber Security UCITS ETF (ISIN IE00BYPLS672 / WKN A14WU5) invests specifically in companies in the cybersecurity sector. In an increasingly digitalized economy, the need for digital security is growing rapidly. Cloud security, identity management and cryptography are becoming crucial pillars of the digital infrastructure. The ETF fully physically tracks the ISE Cyber Security UCITS Index and focuses on the leading players in the booming sector with 34 holdings. The total expense ratio is 0.69 percent annually, and the income is reinvested to accumulate. The fund volume of 2.4 billion euros demonstrates the strong investor interest in this future topic.
The second satellite, the iShares Automation & Robotics UCITS ETF (ISIN IE00BYZK4552 / WKN A2ANH0), opens up another growth area. Robotics and automation are transforming industries worldwide – from manufacturing to logistics to medical technology. The labor shortage and rising wage costs are further reinforcing this trend. With 137 holdings, the ETF offers broader diversification than the cybersecurity ETF and covers both technology and industrial companies. The total expense ratio is 0.40 percent annually with a fund volume of 3.1 billion euros.
Conclusion: The combination of a focused US core ETF and two specialized technology satellites exemplifies how the core satellite strategy works: solid market basis meets targeted future potential – with controlled risk.