Financial markets in April were characterised by remarkable contrasts. While geopolitical tensions, particularly the escalation surrounding Iran, caused uncertainty, major equity indices reached new all-time highs. The market thus moved between political nervousness, high valuations and the continuing hope of technological productivity boosts.
AI optimism remains at the centre of attention. The expectation that artificial intelligence can sustainably change business models, productivity and margins remains a key driver of market sentiment. At the same time, the environment remains challenging: high valuations are meeting geopolitical uncertainty, rising energy prices and renewed inflation concerns, meaning that monetary policy signals are being followed particularly closely.
Below, we take up key topics from the current Market Overview and show which questions are likely to be of particular concern to investors at present.
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Equities & commodities: all-time highs despite thin air
Equity markets proved remarkably robust in April. Despite the war in Iran and growing geopolitical uncertainty, both the S&P 500 and European benchmark indices reached new highs. The rally was driven primarily by expectations of US technological dominance, the continuing AI boom and strong impulses from defence, energy and selected financial stocks. At the same time, market breadth is narrowing, while interest-rate-sensitive sectors are suffering from high financing costs and valuations in many areas offer little buffer.
How sustainable is a rally when euphoria, liquidity and geopolitical risks are moving ever closer together?
Fixed Income: between inflation, energy prices and the central bank dilemma
In the bond markets, the question moved to the fore in April as to whether central banks need to support growth or defend price stability. Persistent inflation in the US, rising energy prices and concerns about stagflation put pressure on yield curves. Expectations of rapid interest rate cuts were scaled back significantly, while credit markets are becoming increasingly selective: quality securities remain in demand, while weaker credit ratings are coming under greater pressure due to high refinancing costs. Switzerland remains a special case, with low inflation and stable monetary policy, but is likewise part of a more complex global interest rate environment.
Are interest rate cuts therefore off the table for the time being, or will the further development of energy prices determine the room for manoeuvre in monetary policy?
Alternative investments: CLOs in focus in a more volatile credit market
In the area of alternative investments, the current Market Overview looks at collateralised loan obligations, or CLOs for short. This investment category is an example of the structural transformation of credit markets, in which bank-related financing, private credit and securitised credit structures increasingly coexist. CLOs pool diversified portfolios of leveraged loans and offer different risk-return profiles through various tranches. In an environment of higher interest rates, rising credit market volatility and growing sectoral differences, however, manager quality, portfolio construction and selectivity are becoming increasingly important.
What role can CLOs play in future institutional portfolios between defensive stability, active management and increased mark-to-market volatility?
A market environment between records and reality check
The Market Overview 05/2026 shows an environment that appears constructive at first glance, but becomes more challenging on closer inspection. Equity markets are celebrating record highs, yet valuations are high and the rally is increasingly concentrated in selected winning sectors. Bond markets must once again contend with inflation, energy prices and the risk of delayed interest rate cuts. At the same time, alternative credit strategies are moving more strongly into focus, as volatility, liquidity and the quality of the underlying portfolios are once again becoming more decisive.
The central challenge therefore remains not to look at market movements in isolation. Geopolitics, inflation, monetary policy, technological innovation and credit quality are increasingly interlinked. In precisely such an environment, it becomes more important to classify developments carefully and to distinguish between short-term market sentiment and long-term structural changes.
You can find more in-depth assessments and detailed information in the current Tellco Market Overview 05/2026.