• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Finance

Busted for insider trading, this former hedge fund manager is believed to be behind last week’s margin call mayhem

By
Eric Schatzker
Eric Schatzker
,
Sridhar Natarajan
Sridhar Natarajan
, and
Bloomberg
Bloomberg
Down Arrow Button Icon
By
Eric Schatzker
Eric Schatzker
,
Sridhar Natarajan
Sridhar Natarajan
, and
Bloomberg
Bloomberg
Down Arrow Button Icon
March 29, 2021, 4:13 AM ET

Bill Hwang, a former hedge fund manager who’d pleaded guilty to insider trading, was deemed such a risk by Goldman Sachs Group Inc. that as recently as late 2018 the firm refused to do business with him.

Those misgivings didn’t last.

Wall Street’s premier investment bank, lured by the tens of millions of dollars a year in commissions that a whale like Hwang paid to rival dealers, removed his name from its blacklist and allowed him to become a major client. Just as Morgan Stanley, Credit Suisse Group AG and others did, Goldman fueled a pipeline of billions of dollars in credit for Hwang to make highly leveraged bets on stocks such as Chinese tech giant Baidu Inc. and media conglomerate ViacomCBS Inc.

Now Hwang is at the center of one of the greatest margin calls of all time, his giant portfolio in a messy and painful liquidation, and Goldman’s reversal has thrust it right into the mayhem.

According to two people with direct knowledge of the matter, Hwang’s Archegos Capital Management was forced by its lenders to dump more than $20 billion of stocks on Friday in a series of market-roiling trades so large and hurried that investors described them as unprecedented.

Goldman even emailed clients late Friday to inform them that it had in fact been one of the banks selling. The email, a copy of which was seen by Bloomberg, detailed a total of $10.5 billion in trades. The message didn’t name Hwang or Archegos.

Representatives for Goldman, Morgan Stanley and Credit Suisse declined to comment. Efforts to reach Hwang and his associates at Archegos were unsuccessful.

Large Leverage

A so-called Tiger Cub who worked for Julian Robertson at Tiger Management, Hwang set up Archegos as a family office after shutting down his own hedge fund. Traders familiar with his orders describe Hwang running a long-short strategy with exceptionally large leverage, meaning that for every dollar of his own, he’d pile on several times as much in borrowed money.

For years, as they watched Archegos send business elsewhere, senior staff in Goldman’s equities division tried to cultivate Hwang as a client. Yet every attempt to open an account for him was blocked by Goldman’s compliance department, according to people familiar involved in those discussions. The reason: Hwang’s checkered past.

In 2012, he pleaded guilty on behalf of his firm, Tiger Asia Management, to U.S. charges of wire fraud. According to the Justice Department, Tiger Asia traded on material non-public information, reaping $16 million of illicit profits in 2008 and 2009.

Back in 2018, Goldman was wrestling with the reputation damage from the 1MDB scandal in Malaysia as well as still trying to restore its name after the financial crisis.

Force of its Own

At some point in the past two-and-a-half years, the firm changed its mind about Hwang. What exactly prompted the shift still isn’t clear. One possibility: The firm decided that, after a decade since his illegal trades, Hwang had spent enough time in the penalty box. Archegos had also become a force of its own, a family office that was bigger than many hedge funds.

Eventually, Goldman joined the ranks of Hwang’s top financiers, according to the people with direct knowledge of that relationship, enabling him to place many of the risky wagers that unraveled at breathtaking speed last week.

Goldman wasn’t alone. As those bets went haywire, Hwang’s prime brokers demanded more collateral to back his margin loans. By Friday morning, some banks had started exercising the right to declare him in default and liquidate his positions to recover their capital, according to people familiar with that situation. Others swiftly followed.

That triggered a mad dash to sell shares in huge blocks as one bank after another scrambled to avoid losses on stocks that soon would be plummeting in value. As Monday’s open approaches, Wall Street is still trying to piece together a full accounting of the trades.

About the Authors
By Eric Schatzker
See full bioRight Arrow Button Icon
By Sridhar Natarajan
See full bioRight Arrow Button Icon
By Bloomberg
See full bioRight Arrow Button Icon

Latest in Finance

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Finance

Trump says a ‘final proposal’ for a taxpayer-funded takeover of Spirit Airlines is under consideration
PoliticsAirline industry
Trump says a ‘final proposal’ for a taxpayer-funded takeover of Spirit Airlines is under consideration
By Michelle L. Price, Rio Yamat and The Associated PressMay 1, 2026
6 hours ago
EBay soars on report that GameStop is preparing a takeover bid
Investingecommerce
EBay soars on report that GameStop is preparing a takeover bid
By Spencer Soper, Cecilia D'Anastasio and BloombergMay 1, 2026
6 hours ago
ExxonMobil CEO Darren Woods, far right, listens as U.S. President Donald Trump,left, speaks during a meeting with oil company executives in the East Room of the White House on Jan. 9. President Trump is aiming to convince oil executives to support his plans in Venezuela, a country whose energy resources he says he expects to control for years to come. US forces seized Venezuelan president Nicolas Maduro in a sweeping military operation on January 3, with Trump making no secret that control of Venezuela's oil was at the heart of his actions.
EnergyIran
Exxon Mobil CEO sees ‘more to come’ on price spikes from Iran war as Exxon, Chevron beat on earnings despite plunging profits
By Jordan BlumMay 1, 2026
8 hours ago
trump
PoliticsIran
Trump on Iran: ‘They want to make a deal, I’m not satisfied with it, so we’ll see what happens’
By Toqa Ezzidin, Munir Ahmed, Collin Binkley and The Associated PressMay 1, 2026
10 hours ago
infantino
North AmericaWorld Cup
Fifa’s Infantino predicted sellouts and ‘1,000 years of World Cups at once,’ but fans aren’t biting
By James Robson and The Associated PressMay 1, 2026
10 hours ago
cox
C-SuiteWealth
Billionaires have a problem money can’t solve: They don’t know how to talk to their kids
By Nick LichtenbergMay 1, 2026
10 hours ago

Most Popular

Scott Bessent on financial literacy: 'it drives me crazy' to see young men in blue-collar construction jobs playing the lottery
Personal Finance
Scott Bessent on financial literacy: 'it drives me crazy' to see young men in blue-collar construction jobs playing the lottery
By Fatima Hussein and The Associated PressMay 1, 2026
16 hours ago
China dominates the world's lithium supply. The U.S. just found 328 years' worth in its own backyard
North America
China dominates the world's lithium supply. The U.S. just found 328 years' worth in its own backyard
By Jake AngeloApril 30, 2026
1 day ago
The U.S. economy is booming — just not where 50 million Americans live
Commentary
The U.S. economy is booming — just not where 50 million Americans live
By Derek KilmerMay 1, 2026
20 hours ago
Accenture's Julie Sweet blew up 50 years of company history. She says the hardest part is still ahead
Conferences
Accenture's Julie Sweet blew up 50 years of company history. She says the hardest part is still ahead
By Nick LichtenbergApril 29, 2026
3 days ago
Apple cofounder Ronald Wayne—whose stake would be worth up to $400 billion had he not sold it in 1976—says that at 91, he has no regrets
Success
Apple cofounder Ronald Wayne—whose stake would be worth up to $400 billion had he not sold it in 1976—says that at 91, he has no regrets
By Preston ForeApril 27, 2026
5 days ago
A Chick-fil-A worker got fired and then showed up behind the register to allegedly refund himself over $80,000 in mac and cheese
Law
A Chick-fil-A worker got fired and then showed up behind the register to allegedly refund himself over $80,000 in mac and cheese
By Catherina GioinoMay 1, 2026
11 hours ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.