Hedge Funds Bet on Reverse-Dispersion as Stock Dispersion Peaks

Hedge funds are shifting into reverse-dispersion trades, selling volatility on individual stocks and buying index volatility to profit if unusually large swings in single names give way to moves that lift broad-market volatility.

Adapt Investment Managers has made reverse dispersion a high-conviction position. Alexis Maubourguet, the firm’s chief investment officer, described the strategy as ‘one of the firm’s highest-conviction positions,’ and said it hurt performance last quarter as correlations fell further while offering potential asymmetric upside if a macroeconomic shock aligns stocks.

Options-market readings show why managers are acting. One-month implied dispersion among large-cap U.S. equities is at its highest level since 2020, while three-month implied correlation for the biggest stocks has dropped to about 7%. David Elms, head of diversified alternatives at Janus Henderson, noted the roughly 10-year average implied correlation is near 33% and that correlations climbed above 80% during the Covid-19 market sell-off.

Market drivers include the start of earnings season, active sector rotation and large moves in artificial-intelligence-related names. Ohsung Kwon, a strategist, pointed to AI-led shifts in leadership and capital moving between sectors as factors keeping company-level volatility elevated even as indexes trade in a narrow range. Wells Fargo Securities has observed options markets pricing larger-than-normal earnings reactions for individual companies while expecting muted moves for the S&P 500.

Some managers are cautious about shorting single-stock volatility outright. Mandy Xu, head of derivatives market intelligence at Cboe, said some investors are reluctant to open fresh dispersion positions at current levels and are instead exploring structures that sell single-stock volatility while buying index volatility. UBS derivatives strategist Kieran Diamond said many firms add larger long positions in index volatility to limit exposure to short single-stock volatility, citing the risk that earnings surprises or geopolitical events can still trigger sharp moves in individual equities.

Traditional dispersion trades, which profited when individual shares were more volatile than the broader market, have drawn heavy flows in recent years. The divergence between single-stock and index volatility has led a growing number of hedge funds to take the opposite stance, positioning for a potential rebound in correlation and higher index volatility that would benefit reverse-dispersion strategies.