What began as a quiet shift into higher-yielding assets has turned into a flashpoint for US life insurance groups, with hedge funds now shorting over $5 billion of their shares amid growing anxiety that the sector's annuity-funded exposure to private credit has created vulnerabilities that regulators and investors are only starting to map.
The scale of the bet was laid out in analysis from Reuters, which showed short positions against US life insurance stocks have more than doubled over the past year. The trade has been sharpened by a run of recent failures in non-bank lending.
Alberto Gallo, founder of hedge fund Andromeda Capital, which is short insurers' bonds, said life insurers owned by private equity firms were "very long private assets and have very limited capital surplus available." TD Cowen analyst Andrew Kligerman, in remarks to S&P Global Market Intelligence, called private credit concern the "main driver" of year-to-date pressure on the group.
TD Cowen analyst Andrew Kligerman, in remarks to S&P Global Market Intelligence, called private credit concern the "main driver" of year-to-date pressure on the group.
Three episodes have crystallized the unease. In September 2025, subprime auto lender Tricolor Holdings filed for Chapter 7 liquidation, having allegedly double-pledged collateral and manipulated loan files.
Days later, auto parts group First Brands filed for Chapter 11. A federal probe was subsequently opened after more than $2.3 billion went missing. Law firm Addleshaw Goddard noted that lenders who believed they were funding debt at five times leverage were in fact backing closer to 20 times.
JPMorgan boss Jamie Dimon, quoted in the same note, said: "When you see one cockroach, there are probably more."
A third shock landed in February, when UK bridging lender Market Financial Solutions collapsed amid fraud allegations, leaving a creditor shortfall of more than £1.3 billion ($1.7 billion). Bloomberg has reported that Atlas SP Partners, the structured credit arm of Apollo Global Management, was among those exposed.
The plumbing has been laid bare by the Federal Reserve. In a research note published in March 2025, Fed staff described how US life insurers reach risky corporate borrowers both directly and through collateralized loan obligations, business development companies, and joint venture loan funds, often run by affiliated asset managers.
The structures, the central bank said, were "complex and arguably opaque."
PitchBook, drawing on the same work, observed that a business development company with a regulatory leverage ratio of two times could carry a consolidated ratio of up to 12 once affiliated vehicles were included.
Industry sub-investment-grade exposure, the publication added, now exceeds the life insurance sector's pre-crisis subprime mortgage holdings.
Traders have added close to $3 billion to short bets on 10 top US life insurers over the past year, lifting the total to about $5.3 billion, while the share of stock borrowed has jumped more than 130%, ORTEX data showed.
The S&P 500 US insurance index has slipped about 5% year to date, against a 4.7% gain for the broader benchmark. Barclays analysts, who view the concerns as overdone, expect combined earnings per share for 15 US life insurers to fall nearly 7% this year.
Short interest in Principal Financial Group has risen more than 80%. Bets against Brighthouse Financial hit a record above 13% on March 9. Prudential's short interest climbed to 3.27% from 1.96%; the firm said it remains focused on disciplined risk management and long-term value creation.
