Fast-money hedge funds are rushing to cover their bearish U.S. stock bets even as the equity rally threatens to break down.
Speculative investors bought a net 206,227 S&P 500 Index E-mini contracts in the week ended June 23, the most since 2007, according to the latest Commodity Futures Trading Commission data.
Net short positions in the contracts were at their highest in almost a decade as the U.S. equity rebound pushed the benchmark back toward record territory.

The surge in short-covering comes as traders wrestle with what to do after a pause in one of the most unloved rallies in recent financial history. The S&P 500 had climbed more that 40% from its late-March low to early June, despite concerns that investors were overly optimistic about the pace of the U.S. economic recovery.
U.S. stocks fell almost 3% last week as the coronavirus spread showed no signs of slowing down.
Other measures of trader positioning also point to an increase in short-covering activity.
Short interest as a percentage of shares outstanding in the $266 billion SPDR S&P 500 ETF Trust had fallen to 4.9% Friday from 6.7% at the end of May, according to data from IHS Markit.
Meanwhile, the beta of the Hedge Fund Research Macro/CTA Index -- which tracks funds synonymous with trend-following quant strategies -- to the S&P 500 is back above zero for the first time since March. That suggests CTA funds have been boosting their exposure to U.S. equities and closing short positions.

“The CTA short base in global equities futures now looks tilted toward a ‘cover’ now,” Nomura Securities strategist Charlie McElligott wrote in a note Friday.
Advisors are navigating a new reality as clients pre-consult ChatGPT before meetings
Chuck Roberts and Stifel have been facing scrutiny due to sales of structured products and structured notes.
The bankrupt fintech platform, which had drawn users seeking access to pre-IPO shares of tech startups, claims a last-minute breach of contract threatens to delay recovery for more than 13,000 defrauded customers.
Appointment extends a run of senior hires as Northern Trust builds out complex-wealth services for entrepreneurs and multigenerational families.
Agency notice opens comment period on the federal match as retirement experts weigh the program's reach for underserved savers.
Northern Trust’s Ken Lassner shows advisors how to convert volatility into after-tax portfolio gains
Dan Biagini of American Equity says the steady decline of pensions, longer lifespans and a reset in interest rates are rewriting how advisors build retirement income