Hedge Funds Are Betting On Dispersion As AI, Bonds And Wars Rattle Stocks

Why stocks feel all over the place

Investors are cheering new AI tools like Meta's Muse AI agent while fretting that rapid adoption could upend businesses from banks to travel agents. Layer on top of that a jump in Treasury yields to a two-decade high, which lifts borrowing costs, plus war news out of Iran and Ukraine that whiplashed oil producers and refiners, and you get sharp moves that rarely line up in the same direction.

Within the S&P 500, those crosscurrents have boosted the back-and-forth between its members, though not to the peaks seen in July. That tug of war is the backdrop for a trade that thrives when stocks inside the same index zig and zag instead of marching together.

Why dispersion is back on every desk

The core pitch is simple: when companies inside a benchmark diverge, dispersion trades aim to harvest that gap. Alex Kosoglyadov, Nomura's head of flow equity-derivatives sales, said clients are zeroing in on the "agentic AI winner-and-loser narrative" and asking who benefits and who is at risk.

Pricing helps, too. Single-stock implied volatility has eased since late July, especially in well-loved tech names. As RBC Capital Markets' Matthew Davis put it, "From an entry standpoint, things are relatively on sale versus where they were not so long ago as single stock vols have compressed." At the same time, traders have been loading up on options tied to individual companies and lightening up on index contracts, a pattern that has started to reopen the gap between single-name and S&P 500 volatility. With earnings around the corner, that divergence could persist as results drive stock-specific moves.

Momentum is visible across the tape: AI-linked names saw a burst of options demand in recent weeks; realized one-month absolute moves for S&P 500 constituents relative to the index have climbed to the 95th percentile over three decades, according to Nomura's cross asset strategist Charlie McElligott; and Cboe Global Markets Inc.'s one-month correlation gauge, which had been rising off a record low in July, slipped again over the past week.

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Where traders are hunting and how they're hedging

Tech and energy are front and center, including the spread between refiners and oil producers. Software shares in particular have seesawed as the story shifts. "Price performance of software stocks has shown that the market believes that AI is not going to be the ender of all software that I think people were concerned that it was," Davis said.

Banks can package dispersion in complex ways, but plenty of hedge funds build their own using exchange-traded options. In a market that alternates between hot and cold, simple playbooks still have a place. At Oppenheimer & Co., Alon Rosin, who runs institutional equity-derivatives, said, "It's a very frustrating environment." "Conviction is super low." Rosin said investors are best off backing a short list of stocks that could generate gains, while using puts on ETFs like the State Street SPDR S&P 500 ETF Trust and the Invesco QQQ Trust to guard against drawdowns.

The activity is there to support it. Options Clearing Corp. data show average options volume rose 14% in August versus a year earlier. And as client demand swelled from May to June, Oppenheimer & Co. added seven staffers, according to Rosin.

Crowd risk and the AI wildcard

There's a catch: crowding. "The trade is due for a washout," warned Kris Sidial, co-chief investment officer at Ambrus Group. "Dispersion has been in vogue for the last four to five years. It's the same exact trade." Still, structures can be shaped for different goals, Davis noted, with more index selling for carry or less for a defensive tilt.

The elephant in every meeting is AI. Its reach could span semiconductors, retail, power generation and real estate, with unknown timing for the broader economy and jobs. That's why both upside and downside look large for the most exposed stocks. "AI and the growth and the usage and the GDP impact can lead to much more outsized, longer-term gains in some of these names than anyone can imagine," Sidial said. "But at the same time, if it's not widely adopted and if there are bottlenecks that are falling down within the pipeline, certainly these names could drop 50% plus over the course of the next year." His takeaway: "This is one of the very interesting cases where both tails are kind of underpriced relative to what can actually happen."

What this adds up to for your money: expect a market where company stories, earnings and AI developments swing single stocks far more than the index, and where how you use options can matter as much as what the Fed or oil does.

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