Global markets have repeatedly brushed off a barrage of shocks in recent years, but HSBC Holdings PLC warns that several developments could eventually test this resilience. In a research note released Monday, the bank highlighted key risks including higher corporate taxes, a renewed rise in private sector debt, and a shift in the stock-bond correlation, alongside the potential fading of the market's perceived central bank safety net.
The bank noted that markets have stayed buoyant thanks to strong corporate earnings, rising wealth effects, and massive central bank backstops. However, it cautioned that if investors sense the central bank put is no longer in place, it could deliver a severe blow to markets—though the likelihood of such a scenario remains low.
Where the biggest threats lie
HSBC stated that the largest risks are concentrated in the U.S., given its outsized share of global equity and credit markets. A hike in corporate taxes would squeeze profit margins and weigh on valuations, while a return of inflation to near or below target could re-establish a negative stock-bond correlation, meaning bond prices rise when equities fall. That shift would prompt investors to trim equity allocations, adding downward pressure on valuations.
The bank also pointed to a potential resurgence in private sector leverage, which would leave the economy and markets more vulnerable to shocks, although it noted that current leverage levels remain at multi-decade lows.
Why this resilience is under scrutiny
These risks are worth monitoring because markets have shown extraordinary immunity to negative news over the past few years. Surging inflation, trade barriers, geopolitical conflicts, carry trade unwinds, and private credit concerns have all failed to derail risk assets. HSBC strategists described the current environment as a "Teflon market," where risk assets appear "blind to all negative triggers," citing five years of persistent strength despite a steady stream of potential headwinds.
Deutsche Bank has also questioned how long this resilience can last. In a report released the same day, it noted that risk assets have "continued to show resilience" even as real interest rates rise and inflationary pressures build, supported by unexpectedly strong global economic growth. The bank argued that "this equilibrium is unsustainable," pointing out that while rate markets have gradually priced in a stagflation shock, equities and credit remain complacent.
Deutsche Bank added that despite mounting inflation pressures, rate markets only anticipate modest central bank tightening, while stock and credit markets assume that higher yields will not cause meaningful damage to growth.
Key drivers behind the market's strength
One major factor underpinning resilience is robust corporate earnings and economic growth, particularly in the U.S., where consensus forecasts have repeatedly underestimated corporate profitability. HSBC noted that this strength is not confined to the tech and AI sectors, and that U.S. corporate tax rates remain near multi-decade lows.
A second factor is the changing relationship between stocks and bonds. Government bonds have lost their effectiveness as a hedge against equity risk, prompting investors to reduce bond holdings in favor of stocks and short-term hedging strategies, which supports elevated equity valuations.
A powerful wealth effect has also played a role. U.S. household wealth has surged well above pre-pandemic trend levels, with most gains concentrated in higher-income households, while cash and cash-equivalent holdings remain far higher than before the financial crisis. Meanwhile, central banks now have more tools to address market stress—HSBC noted that the U.S. Federal Reserve has nearly 20 available tools, emergency facilities, and backstops, while the European Central Bank has over a dozen.
Lower energy intensity and subdued private sector leverage have also helped markets absorb shocks. Even as conflicts in Ukraine and the Middle East triggered oil price spikes, the impact on developed economies has been far milder than comparable oil shocks in the 1970s and 1980s.
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