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Hedge funds
A.W. Jones 1949· Institution or agency
Fact, law or dataA rule, statute, definition or measured number.
Hedge funds are lightly regulated private investment pools that use short selling, leverage and derivatives, and charge high fees.
See it on the Money & Finance map →How it works
Alfred Winslow Jones started the first in 1949: he bought stocks he liked and shorted ones he disliked, so market swings partly canceled out, and he kept 20% of profits. Strategies now include long-short stocks, 'macro' bets on rates and currencies, merger arbitrage and computer-driven quantitative trading. Because they take money mainly from wealthy and institutional investors, they face lighter disclosure rules, though large managers have had to register with the SEC since Dodd-Frank. Industry assets are roughly $4.5–5 trillion (2025).
Why it matters
They add trading liquidity and hunt mispricings, but their leverage can spread crises, as Long-Term Capital Management's 1998 collapse showed.
Facts, rules and data
Carol Loomis's 1966 Fortune article first described Jones's fund; industry data come from HFR and the SEC's Form PF filings.
Debates and risks
Whether hedge funds as a group still earn their fees: since 2008 the average fund has trailed a simple stock-and-bond mix.
Connections (5)
▸Short selling: betting a stock will fall is a core tool of Hedge fundsFact, law or data
The connection
The 'hedge' in hedge fund is the short side: in A.W. Jones's design, short positions offset market swings rather than serving as outright bets on a crash. Long-short stock funds remain a major strategy, and some funds specialize in shorting overvalued or fraudulent companies.
When and why
Jones's fund in 1949; famous short calls include Jim Chanos on Enron (2001) and Hindenburg Research on Nikola (2020).
How we know
Fund disclosures, the SEC's Form PF data and exchange short-interest reports show how heavily hedge funds use short positions.
Debates and risks
Whether short sellers improve markets by exposing fraud or harm companies with attacks; short-sale bans tried in 2008 gave mixed results.
▸Accredited investor rules: who may buy private deals limits access to Hedge fundsFact, law or data
The connection
Hedge funds avoid the 1940 Act's limits on leverage, short selling and fees by staying private, which means selling only to accredited investors or qualified purchasers. To charge performance fees, their clients must also be 'qualified clients', with over $2 million in net worth. Advertising was banned until the 2012 JOBS Act allowed it when every buyer is verified.
When and why
Alfred Winslow Jones's 1949 fund relied on private-offering exemptions; Regulation D followed in 1982; the SEC's Rule 506(c), allowing advertising, took effect in 2013.
How we know
SEC rules, including Advisers Act Rule 205-3 on qualified clients, and Form ADV and Form PF filings showing hedge funds' investor bases.
Debates and risks
Whether wealth tests protect anyone is debated: many of Bernie Madoff's victims were wealthy investors and funds who easily met them.
▸Long-Term Capital Management collapse (1998) was a famous blow-up among Hedge fundsFact, law or data
The connection
LTCM became the cautionary tale for the whole hedge-fund industry: brilliant models, extreme leverage and crowded trades that everyone exits at once. It showed a lightly regulated fund could matter to the banking system, a concern that, after 2008, helped push big managers into SEC registration and reporting.
When and why
Greenwich, Connecticut, 1994–1998; the fund was wound down by early 2000.
How we know
The 1999 President's Working Group report on hedge funds and leverage, prompted by LTCM; Dodd-Frank registration followed in 2010.
Debates and risks
Whether hedge funds pose less systemic risk now is debated, given limited disclosure and the stress in leveraged Treasury trades in March 2020.
▸The carry trade: borrowing in low-rate currencies to buy high yields is a staple strategy of Hedge fundsFact, law or data
The connection
Macro hedge funds run carry trades with leverage through currency forwards and futures, turning small rate gaps into large returns. Leverage also makes exits violent: in October 1998, after Russia's default and LTCM's near-collapse, the yen jumped more than 10% against the dollar in two days as funds rushed to repay.
When and why
Trading desks in London, New York and Tokyo since the 1990s; big unwinds again in 2008 and August 2024.
How we know
CFTC Commitments of Traders positioning data and BIS reports on the 1998 and 2024 unwinds.
Debates and risks
How much carry is now run by hedge funds versus Japanese institutions and retail traders is unclear.
▸Treasury market stress: the 2020 'dash for cash' and 2025 selloff exposed the basis trades of Hedge fundsFact, law or data
The connection
In a basis trade, a hedge fund buys a Treasury, sells a matching futures contract that costs slightly more, and borrows in repo to pay for the bond, sometimes at 50 times leverage or more. The profit is tiny but steady. When volatility spikes, margin calls force funds to unwind, selling Treasuries into an already strained market.
When and why
March 2020 and April 2025; the trade was estimated at roughly $1 trillion or more by 2025, though estimates vary.
How we know
CFTC data on leveraged funds' futures shorts, Fed and BIS research, and Office of Financial Research data on hedge-fund repo borrowing.
Debates and risks
How much basis-trade unwinding drove each episode is disputed; in April 2025 some analysts blamed swap-spread trades or foreign selling instead.