AI Stock Volatility Drags Down Macro Hedge Funds: Rokos and Brevan Howard Each Drop 1.2% in July
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A July sell-off in AI stocks triggered a chain reaction across macro hedge funds, with Rokos and Brevan Howard flagship funds each losing 1.2% — exposing new risks as traditional macro funds carry ever-larger equity books.
How much did these funds actually lose?
Rokos Capital's flagship fund fell 1.2% in July, extending its June decline and narrowing its year-to-date gain to 8.1%.
Brevan Howard's flagship master fund also fell 1.2%, shrinking its seven-month cumulative return to roughly 0.9% — nearly a wasted half-year.
Said Haidar's Jupiter fund fared worst: an estimated 3.2% loss in July pushed its year-to-date drawdown to an estimated 13%.
How did an AI sell-off hit macro funds?
The trigger: Nvidia announced over $750 billion in new AI orders, yet markets worried whether tech firms can sustain that scale of capital spending.
At the same time, a Chinese startup's technical breakthrough stoked fears that the US–China AI gap is narrowing, souring sentiment further.
AI-focused hedge fund Situational Awareness plunged 67% in the month, then sold most of its public equity holdings to Ken Griffin's Citadel to meet margin calls — amplifying the turmoil.
This means → the damage was not a single-stock event but a chain-reaction stampede after confidence in the entire AI sector cracked.
Why are macro funds exposed to AI stocks at all?
Brevan Howard has traded equities for over twenty years and has been steadily raising its equity bets, building a dedicated sector-specialist team under strategist Abhijit Chakrabortti.
In plain terms = traditional macro funds used to make money on rates, currencies, and commodities. Now a growing share of their chips sits in equities.
As stocks claim a larger slice of macro portfolios, violent swings in AI names transmit directly to fund NAV.
This reflects a structural shift: equity exposure has moved from "supplement" to "main battlefield," amplifying both returns and risk.
Which funds actually made money in the same month?
D.E. Shaw's Oculus fund rose 0.9% in July, bringing its year-to-date gain to 27.7%; its Composite fund gained 0.4%, up 13.9% for the year.
Multiple Citadel funds posted July gains above 5% — part of those profits came precisely from buying Situational Awareness's forced liquidation.
This means → the diversified architecture of quant and multi-strategy funds acted as natural armor in this rout, while concentrated bets became ground zero.
What comes next for macro funds in the second half?
This turbulence hit right after the hedge-fund industry posted its strongest first half in five years — sensitive timing.
Whether macro funds can recover hinges on two things: the trajectory of AI stocks and how they manage equity exposure.
In plain terms = how thick the first-half cushion is determines whether these funds can absorb more volatility; whether they are willing to trim equity positions determines if the next AI shock will drag them down again.
Content is for reference only, not financial advice.