Wall Street Is Getting Nervous About What’s Next. Investors Hedge Against a ‘Negative Risk Trinity.’

Wall Street's relative calm may be starting to crack as investors prepare for a potentially turbulent stretch marked by the U.S. midterm elections, uncertainty over interest rates, and escalating geopolitical tensions.

Investors are increasingly paying for protection against sharp market swings, according to a CNBC report, with activity in the options market pointing to growing concern that volatility could rise heading into the final months of 2026.

One of the clearest signals is coming from the Cboe Volatility Index, or VIX, which tracks the market's expectation for S&P 500 volatility over the next 30 days based on options prices. The index is commonly known as Wall Street's "fear gauge," although Cboe describes it more precisely as a forward-looking measure of expected volatility rather than a prediction about whether stocks will rise or fall.

September and October have historically been periods when volatility tends to increase after relatively quieter summer trading. This year, investors have several additional reasons to be cautious.

Nomura strategist Charlie McElligott described the combination of risks as a "negative risk trinity," pointing to the approaching midterm elections, interest-rate uncertainty tied partly to government bond supply and increasingly hawkish central bank pressures, as well as the recent escalation of hostilities in the Middle East.

Equity investors "now have something to hedge against," McElligott wrote in a note cited by CNBC, particularly after investors moved cash back into stocks. The cost of that insurance is already climbing. According to McElligott, investors are paying unusually high premiums for options designed to protect against a surge in volatility over the next three months.

The VIX three-month call skew, one measure of how much investors are willing to pay for that protection, has climbed into the 91st percentile of its historical range. In other words, those hedges have been more expensive only about 9% of the time.

The pattern is also visible in Cboe's volatility term structure. Recent data showed expectations for volatility rising progressively across contracts extending from September into 2027. "As we move toward year-end, we anticipate higher equity-market volatility, both upside and downside, as rate expectations shift and cross-asset pressures build," Luke Rahbari, CEO of Equity Armor Investments, told CNBC.

One area investors are watching particularly closely is the Treasury market. The MOVE Index, which measures expected volatility in U.S. government bonds, remains elevated as traders weigh inflation, changing expectations for Federal Reserve policy and the growing supply of Treasury debt. Rahbari said there are signs that stress in bonds is beginning to spill into equities.

However, Zachary Griffiths, head of investment-grade and macro strategy at CreditSights, noted that both the MOVE Index and VIX remain near their 10-year averages. Corporate credit spreads, meanwhile, remain historically tight, suggesting investors are not demanding unusually large premiums for taking corporate credit risk.

Investors are buying insurance against turbulence even though some of the most closely watched stress indicators remain relatively subdued. The midterm elections could ultimately help resolve part of that uncertainty.

James Ooi, market strategist at Tiger Brokers, told CNBC that volatility historically declines in November, with the VIX falling about 4% on average as election results remove a major political unknown and investors gain greater clarity about the direction of U.S. policy.