Global financial markets have remained remarkably resilient despite repeated economic and geopolitical shocks, but HSBC has identified several developments that could eventually challenge that stability.
According to HSBC strategists, higher corporate taxes, a renewed increase in private-sector debt, changing stock-and-bond relationships and the possibility of reduced central-bank support could put pressure on risk assets. The concerns come as markets continue to absorb geopolitical tensions, elevated oil prices and changing interest-rate expectations.
Why Global Markets Have Remained Resilient
HSBC points to several factors behind the ability of markets to absorb negative developments. Strong corporate earnings and relatively resilient economic growth, particularly in the United States, have provided an important foundation for equities.
The bank also highlights higher household wealth, substantial cash holdings and continued support from central banks. HSBC's broader September outlook similarly says stronger earnings and resilient economic activity have helped equities withstand geopolitical and inflation-related pressures.
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Four Risks HSBC Is Watching
HSBC identifies several potential threats to the current market environment.
Higher corporate taxes: An increase in corporate taxation could reduce company profitability and put pressure on equity valuations.
Rising private-sector debt: Although private-sector leverage remains relatively low compared with previous periods, a renewed increase could make companies and households more vulnerable if economic conditions deteriorate.
Changing stock-bond relationship: If inflation falls closer to or below central-bank targets, the traditional negative correlation between stocks and bonds could return. That could change portfolio allocation decisions and potentially reduce demand for equities.
Reduced central-bank support: HSBC also considers the possibility that markets could lose some of the support investors have come to expect from central banks. However, the bank says a complete withdrawal of such support appears difficult to imagine, particularly in the United States.
Oil Prices and Bond Yields Add to the Pressure
The market backdrop has become more complicated as energy prices rise. Brent crude recently moved close to $100 a barrel amid heightened geopolitical tensions, while U.S. Treasury yields have also moved higher. These developments can increase borrowing costs and create additional challenges for equity valuations.
The combination of higher energy costs and elevated yields is particularly important because persistent inflation could limit the ability of central banks to ease monetary policy.
Deutsche Bank Also Questions Market Resilience
HSBC is not alone in questioning whether current market resilience can continue indefinitely. Deutsche Bank has similarly warned that equities and credit markets may be underestimating the potential impact of a more difficult inflation and interest-rate environment.
The differing signals between equity markets and bond markets are therefore becoming increasingly important. While risk assets remain relatively confident, bond investors are showing greater concern about inflation, government borrowing and higher long-term yields.
What Could Break the Streak?
The current market environment is supported by strong earnings, economic resilience and substantial financial-system liquidity. But HSBC's assessment suggests that the combination of higher corporate taxes, increased leverage, changing correlations and reduced policy support could eventually test investor confidence.
For now, markets continue to absorb negative headlines better than many analysts expected. The bigger question is whether that resilience reflects genuinely strong fundamentals or an unusually supportive financial environment that could become harder to maintain.
Source attribution: Based on the supplied CNBC report, with key market conditions cross-checked against HSBC's September 2026 outlook and current market reporting.