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Leading global hedge funds have accumulated a record amount of borrowed capital in recent years. Analysts at Goldman Sachs and JPMorgan warn: a massive portfolio reshuffling at the end of the quarter could trigger a sell-off of securities worth up to $165 billion. This situation significantly increases the risks of sharp fluctuations in the value of overheated tech giants.

The market is bracing for a perfect storm. Two Wall Street titans — Goldman Sachs and JPMorgan — are simultaneously sounding the alarm about the same threat. And this is no coincidence. Excessive leverage combined with extreme concentration of investor bets has created a volatile mix. The slightest trigger — and a cascade of mechanical selling could wipe out billions in market capitalization within hours.

Record Leverage in the "Thickest" Trades

According to Goldman Sachs' prime brokerage division, total hedge fund leverage surged to ~294% in June 2025 — a five-year high. In a June internal memo from Goldman trader Lee Coppersmith, it was noted that net leverage had risen to its highest levels in four years.

JPMorgan strategist Nikolaos Panigirtzoglou only heightened the alarm. He pointed out that bets on the semiconductor sector are "overheated" to such an extent that the probability of a new wave of selling has sharply increased. Such shock scenarios, measured by the value-at-risk indicator, typically materialize when volatility exceeds funds' internal limits. Managers are then forced to urgently liquidate positions, which only adds fuel to the fire.

JPMorgan's comparison of companies' market shares looks daunting: the ratio of stock value to revenue share for semiconductor giants exceeds 6 times, while for the "Magnificent Seven" tech giants it is "only" 3 times. Such a high concentration of capital makes the AI sector extremely vulnerable. A localized deterioration in sentiment among major players could trigger a cascading correction.

Causes and Consequences: Who Will Sell and How Much

The main trigger right now is the mechanism of quarterly rebalancing. According to JPMorgan's calculations, in the final days of June, institutional players could sell up to $165 billion in stocks to adjust their portfolios after a successful rally.

Key sellers:

• Japan's GPIF pension fund (assets $1.9 trillion) — approximately $60 billion.
• US pension funds — another $55 billion.
• Norwegian and Swiss entities — will add several tens of billions.
• Only balanced investment funds (about $15 billion) will partially offset the pressure.

Global markets are facing the impending pressure in a state of heightened nervous tension. New Fed Chairman Kevin Warsh, following the June meeting, maintained current monetary policy parameters but openly admitted the possibility of a new round of tightening before the end of the year. The Fed's hawkish stance quickly cooled investor hopes for an imminent easing of conditions, triggering an additional bout of turbulence.

What This Means for Bitcoin

The overall vulnerability of the traditional financial sector has naturally affected the flagship crypto asset as well. JPMorgan analysts note that the blockchain's hashrate has become much more dependent on the coin's market price. This directly points to a dangerous trend: many miners are currently operating on the edge of equipment profitability, which amplifies the overall instability of the digital segment.

Bitcoin is holding positions around $64,100 with a market cap of about $1.29 trillion. In recent weeks, the coin has repeatedly corrected towards the lower boundary of the psychological range of $60,000. The cryptocurrency is now behaving like a highly volatile tech stock, having completely lost its safe-haven properties. The price has trended downward amid the hawkish FOMC rhetoric and mixed quarterly reports from AI sector leaders.

My expert opinion: If the wave of institutional selling coincides with the crisis of excessive leverage, the financial storm will intensify significantly towards the end of the calendar month. The ability of buyers to absorb such massive volumes of capital will determine the further direction of stocks and cryptocurrencies in the coming weeks. Investors should prepare for increased volatility and, possibly, opportunities to buy on dips if fundamental growth drivers remain intact.