CARSON BLOCK
The activist short seller who founded Muddy Waters and wiped out billions by exposing corporate frauds.
Carson Block makes money betting companies are lying, then proving it in public. His firm Muddy Waters famously torched about $3 billion of value at Sino-Forest in 2011 by calling it a fraud. He is loud, combative, and utterly convinced that short sellers do the accountability work regulators will not. Love him or hate him, he moves markets with a single PDF.
Net Worth
Undisclosed
Nationality
American
Time Horizon
Swing
Risk Appetite
8 / 10
Fund
Muddy Waters Capital
CAREER & BACKGROUND
Block was born in 1977 and earned a business degree from USC in 1998 with a focus on Chinese and finance. He moved to China after college, did a short stint in investment banking, then worked with his father on equity research, a period he later called embittering.
He earned a law degree from Chicago-Kent in 2005 and practiced M&A law at Jones Day in Shanghai. He co-wrote Doing Business in China for Dummies in 2007 and even ran a self-storage business in China.
His life changed in 2011 when he founded Muddy Waters Research and published a report calling Toronto-listed Sino-Forest a multibillion-dollar fraud. The stock collapsed and the company later went bankrupt.
Muddy Waters has since triggered at least eight delistings and multiple regulatory actions worldwide.
COMPANIES & ROLES
Muddy Waters Research, Muddy Waters Capital
INVESTING STYLE & PHILOSOPHY
Block is an activist short seller. He finds companies he believes are lying about their business, bets that their stock will fall, then publishes a detailed report explaining why.
The plain version is he profits when he is right and the truth comes out. Unlike a normal short seller who just quietly bets against a stock, Block goes public and loud.
His targets usually involve accounting games, overstated assets, or outright fraud. He does deep forensic digging, sometimes visiting factories and counting inventory himself.
THE PLAYBOOK
Risk Approach
Short selling is one of the riskiest ways to invest, because a stock can rise forever but only fall to zero. Block layers on legal threats, lawsuits, and even death threats from the companies he targets.
He tolerates all of it as the cost of the trade.
Money Habits
Block's income comes from betting against companies, which makes him a professional pessimist by trade. He has spoken openly about the darker realities of the job, including death threats and constant legal pressure from the firms he exposes.
He is unusually candid for a money manager and treats short selling as a moral crusade as much as a trade. His public reports are his product, so his reputation for being right is the asset he guards hardest.
He compares the permanence of his profession to the world's oldest one, betting on human nature.
BIGGEST WIN
Sino-Forest is the case that made him. In June 2011 Muddy Waters published a report calling the Chinese forestry company a fraud and a Ponzi scheme that overstated its timber holdings.
The stock cratered, wiping out roughly $3 billion in market value. Sino-Forest was delisted from the Toronto Stock Exchange in 2012 and filed for bankruptcy protection.
Legendary investor John Paulson reportedly lost heavily on the long side, which made the call even more talked about.
BIGGEST MISTAKE
Not every Muddy Waters bet lands, and short selling means you can be right on the fraud but wrong on the timing. Targeted companies fight back with lawsuits, PR campaigns, and personal attacks, and some Muddy Waters shorts have been slow to pay off or gone against him for long stretches.
The lesson Block lives with is brutal. Being correct is not enough if the market takes years to agree, and the stock can crush you in the meantime.
FINANCIAL PHILOSOPHY
Block believes markets are full of companies whose accounting hides the truth, and that short sellers are the only people digging for it. He sees his job as holding people accountable when the official systems fail.
He is blunt that some of his best work involves conduct that violates the spirit of the law but not the letter of it. His philosophy is deeply skeptical.
Assume the story is too good, then check.
FAMILY & PERSONAL LIFE
Block keeps his family life private. He spent formative years in China, which shaped both his career and his early targets.
EDUCATION
Block earned a bachelor's degree in business administration from the University of Southern California in 1998, focused on Chinese and finance. He later earned a law degree from Chicago-Kent College of Law in 2005.
The mix of Mandarin, finance, and law is exactly what let him pick apart the China-based companies that made his name.
BOOKS & RESOURCES
Block co-authored Doing Business in China for Dummies in 2007, well before Muddy Waters
For his investing work, the real resource is the Muddy Waters research reports themselves, which lay out his forensic case against each target
QUOTES (4)
Provided that there are capital markets, I think our profession will be as eternal as that of prostitution. You're just betting on human nature, the darker side of human nature.
Most days, I feel like there's some purpose to what we do, and that is trying to hold people accountable. I don't know that our systems of accountability really work much at all anymore.
That to me seems to be pretty American when we're out there protecting investors.
It violates the spirit of the law, but not the letter of the law.
NETFIGO SCORE
Proprietary 5-dimension investor rating
Risk Appetite
Contrarian Index
Track Record
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Time Horizon
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Andrew Left
Left runs Citron Research and is the other high-profile activist short seller who publishes public reports.
Jim Chanos
Chanos is the other famous forensic short seller, best known for calling Enron before its collapse.
Michael Burry
Burry is the contrarian short seller of The Big Short fame who, like Block, bets against consensus.
Head-to-Head
Compare Carson Block vs another investor.