When the US stock market is in a state of “extreme fragility,” the earnings season begins

U.S. stock index-level volatility appears calm on the surface, but internal pressure is building. Under triple pressure from the geopolitical situation, expectations for monetary policy, and credit-market signals, market fragility has risen to near-year highs—and a round of high-expectation, high-risk earnings season is kicking off right now.

UBS’s derivatives strategy team’s “Turbu-lens” market fragility indicator is currently at 0.9 (range -1 to 1), the highest level since mid-September 2025. Historically, readings like this often signal a sharp, near-term spike in the VIX. UBS derivatives strategist Maxwell Grinacoff’s team warns that this indicator points to “extreme market fragility,” while earnings season is starting at just this moment. At the same time, the team also notes that if systematic strategies fully ramp up leverage, the indicator could “truly reach +1.”

Elevated market expectations further amplify the risk. Analysts’ earnings-growth expectations for S&P 500 index constituents in Q2 are as high as 24%, and expectations for the STOXX Europe 600 index are also 12%. Unlike prior earnings seasons, ahead of the reporting period, analysts have continued to raise forecasts—so the strength of their conviction also means there is more room for adjustment if results disappoint the market.

With the VIX staying calm, single-stock volatility is already more than triple that of the index

While the VIX is at a low level, this calm is misleading. A Barclays strategy team led by Anshul Gupta says the VIX’s recent decline coincides with the calendar window in which seasonal price volatility typically narrows, a “brief sweet spot” with limited persistence. But the start of earnings season may push the VIX back up.

More importantly, the subdued index volatility is masking extreme internal divergence in the market—single-stock volatility is more than three times index volatility. Grinacoff says the gap is likely to narrow over the summer; by then, whether it’s monetary policy being repriced again or geopolitical disturbances, it could trigger a rise in index-level volatility.

On hedging strategies, because diversified trading and sector rotation may continue through the next several weeks of earnings windows, hedging effectiveness at the index level may be limited. Grinacoff suggests that “single-stock options may offer better opportunities tactically.”

Oil prices and the bond market send dual warnings

Oil-price volatility driven by the geopolitical situation is creating sustained pressure across global equities. Brent crude is up to just below $80 per barrel. This trajectory could keep inflation expectations elevated and prompt the Federal Reserve to stay on the sidelines. Even though changes to rate-hike expectations have been limited after the Fed meeting minutes were released, the yield on the 10-year U.S. Treasury has quietly risen to near the 4.6% level. Rising bond-market volatility is sending a negative signal to global equities—and at minimum, suppressing further upside.

Citi strategists (including Alice Zheng) point out that positioning in the market for higher oil prices is off, with Europe particularly vulnerable—because of its heavy reliance on imported energy and its lower exposure to AI beneficiary assets. “If the rise in oil prices continues, the pullback in European equities could be quite significant, after all the market had already priced in the end of the conflict expectations to a large extent,” the strategists wrote.

Credit markets not endorsing a stock-market rally

Credit-market performance is sounding an alarm for the stock market’s upside momentum. Compared with stock indexes previously surging to record highs, the narrowing in credit default swap (CDS) spreads has been fairly limited—credit markets have not sufficiently endorsed the stock market’s rally. As the recent selloff in equities has emerged, the two have once again moved in sync. However, analysts believe that to support a stronger upward move in equities, credit markets will need to deliver clearer tightening signals.

Against these risks, UBS recommends that investors capture volatility opportunities at the individual-stock level through pair-wise correlations trades. On the sector front, UBS says the most suitable pairing setup for volatility trades in the U.S. market is Technology, Energy, and Financials; for Europe, it recommends Energy, Technology, and Consumer Discretionary.

Risk disclosure and disclaimer

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