Who is Michael Burry?

In 2008, the 'Big Short' mastermind Michael Burry made more than $700M.

Hear what Michael Burry thinks about the possibility of an AI bubble

Since his success shorting subprime mortgage-backed securities in 2008, Burry's positions have often become influential, sparking conversations on platforms like X. In 2025, Burry drew attention for betting against Nvidia and Palantir for being overvalued companies.

In early 2021, GameStop's stock surge brought retail investing into the spotlight.

The 2008 financial system unraveled in a wave of speculation

Michael Lewis—author of the bestselling "The Big Short"—explains how a wave of speculation (among other factors) drove the 2008 collapse, from lenders issuing risky mortgages to Wall Street turning them into fragile securities. He also highlights the few outsiders who recognized the bubble and bet against it before the crash.

Many retail investors exited the stock market after 2008, leading to a drop in individual market participation

That changed thanks to GameStop, federal stimulus checks, and strong corporate results in the first quarter of 2021. This chart plots how much retail investors poured into the market each day, reaching records in early 2023.

How a Reddit thread drove GameStop's stock price up and gutted the pockets of short sellers

In 2021, many hedge funds felt like GameStop was overvalued and began placing short positions. However, users in the "r/WallStreetBets" subreddit felt like the hedge funds were too aggressive in their short positions and rallied together to purchase large amounts of GameStop stock, pushing the stock price up. As the stock price rose, hedge funds began buying back their shares to cover their short positions, which also began pushing the stock price up in what's called a "short squeeze."

Listen to Keith Gill's testimony from the GameStop hearing

"I am not a cat, I am not an institutional investor, nor am I a hedge fund." That's how Keith Gill, aka Roaring Kitty, kicked off his testimony before Congress on the wild trading action in GameStop stock. Lawmakers took notice of the meme stock craze, and the collapse of hedge fund Melvin Capital, opening up an investigation into what exactly moved so much money.

GameStop stock began a meteoric rise in January 2021, rallying from a low of $2.57 to as high as $438 when Keith Gill helped mobilize retail investors to drive prices higher

Keith Gill was a financial advisor who posted on social media under usernames including "Roaring Kitty." Backing from Chewy founder Ryan Cohen, who became GameStop's CEO, took things up a notch.

BlackRock played an integral role in the Federal Reserve's response to the Great Recession, managing about $30B of hard-to-sell Bear Stearns assets on behalf of the New York Fed.

The movie adaptation of ‘The Big Short’ provided a visual for the 2008 housing bubble

A scene from "The Big Short" visualizes how Wall Street bundled shaky mortgages into complex housing bonds and sold credit default swaps on top of them—showing, step by step, how the structure of the 2008 housing bubble was vulnerable to collapse.

The director of 'The Big Short' is still angry about 2008

Adam McKay adapted Michael Lewis's book "The Big Short" into a hit film about how the 2008 housing market crash began. Now, many years later, the two reflect on the film and the events that brought it about.

Read about why bans on short selling are a controversial policy

Generally, short selling is legal, but regulations often restrict short positions when a stock has experienced a sharp price decline (more than 10% in one day). However, negative feedback loops in times of financial crisis have given short selling a bad reputation. The government has temporarily banned short selling during previous market downturns—like The Great Recession of 2008 and the early months of the COVID-19 pandemic—but experts argue whether those bans actually improved market stability or just distorted prices.

Watch Margot Robbie explain subprime mortgages—risky loans given to homebuyers with low credit scores or no income verification.

In 2012, Bill Ackman's hedge fund, Pershing Square, took a $1B short position against supplement company Herbalife after discovering that 82% of the company's distributors never made a profit, calling it a true pyramid scheme.

Hear why one short seller thinks short selling is now more important than ever.

To continue selling mortgages, agencies that determine how risky a loan is gave high ratings to homebuyers regardless of their actual risk portfolio.

In March 2008, Bear Stearns was the first major bank to collapse in the Great Recession—leading to panic across the entire global financial system.

The dot-com stock bubble taught Howard Marks about markets

Annual investment letters from Howard Marks, the billionaire cofounder of top distressed debt shop Oaktree Capital Management, are required reading on Wall Street. The prolific writer and investor explains the distinction between the folly of trying to time the market and the necessity of paying attention to market cycles. The difference makes all the difference in returns.

Shorting is a high-risk and expensive investment strategy that hedge funds specialize in

Most investors buy stocks with the expectation that those stocks will be worth more tomorrow than they are today. Short selling, known as “shorting,” a stock is the opposite: The investor is betting the stock will drop in value.

Some experts and investors think short selling—a strategy in which investors bet that a stock will drop in value—helps keep the market healthy.

Before the Great Recession, lax requirements to get a mortgage resulted in mass defaults that left nearly 19 million homes vacant.

Retail investors are getting burned by long/short strategies

In the US, many retail investors lack the SEC-mandated status (a high enough net worth, income, and other factors) to directly invest in hedge funds. The regulator considers hedge funds too risky for the masses. Hedge fund-like strategies have emerged as a workaround, despite potential pitfalls.

How one man placed the first short against the Dutch East India Company

Isaac Le Maire, a Dutch businessman and cofounder of the Dutch East India Company, is said to be history's first short seller, betting against the Dutch East India Company's stock price. Le Maire, who had been fired from the spice trading company over an unclear financial dispute, began spreading false rumours about the company to encourage people to sell their stock in order to tank its value.

How one supplement company cost a short seller $1B

Pershing Square, a hedge fund founded and run by Bill Ackman, put short positions on Herbalife in 2012, because it believed the company was a pyramid scheme. Ackman's longtime rival and legendary investor Carl Icahn began buying Herbalife shares, causing the stock price to rise—ultimately hurting Pershing Square's short position.

Subprime lending practices, which fueled the housing bubble, surged after 2000.

Dissecting the legend of Sam Bankman-Fried

Sam Bankman-Fried, the founder and former CEO of FTX, a cryptocurrency exchange, rose to fame as a crypto visionary and was hailed as a genius. But he had a quick downfall in late 2022 when reports surfaced, implicating him in massive fraud.

The Reddit forum r/WallStreetBets is a place to discuss high-risk trading strategies

r/WallStreetBets is a forum (aka a “subreddit”) on the social media platform Reddit that was started in 2012. Later, r/WallStreetBets evolved into a place where unconventional investment approaches were not just tolerated, but planned and celebrated. It’s perhaps most famous for its role in the GameStop saga.

Largely considered to be the inspiration for Gordon Gekko in the movie 'Wall Street,' Ivan Boesky was one of the most high-profile white-collar criminals and faced a $100M fine for insider trading in 1986.

The market share of institutional investors in the US housing market is less than 1%

Institutional investors have drawn negative media attention for their purported role in limiting housing supply and driving housing unaffordability. This report separates myth from fact in the nuanced discussion around institutional investors' role in the US housing market.

In 2007, Bridgewater Associates, the world's largest hedge fund, warned of an impending financial crisis.

A look at the biography of Sam Bankman-Fried by author Michael Lewis

Michael Lewis released a book, "Going Infinite," on the day the subject of the book began his high-profile fraud trial. The book delves into the life of Sam Bankman-Fried, a young billionaire in the cryptocurrency world. Find out what the bestselling author discovered over two years and 100 interviews with Bankman-Fried.

What happens when a hedge fund grows too big, too fast?

Dmitry Balyasny, who heads what has become one of the top US hedge fund firms, got a crash course in finance as a teenager, when he started trading stocks—and started losing money. Balyasny went on to lose a whole lot more money. But, this time, it wasn’t his to lose. To find out more about his firm’s remarkable comeback, read this article.

A short squeeze happens when short sellers increase stock prices by buying shares back quickly

When short sellers realize their positions may be incorrect—usually triggered by increasing share prices—they often try to quickly buy back their shares in order to minimize their total losses. When this happens on a large scale, that buying activity can drastically increase to represent the seemingly high demand for that stock. The result is called a "short squeeze," which refers to short sellers literally being squeezed out of their positions by rising prices.

‘The Giant Pool of Money’ remains one of the most acclaimed accounts of the 2008 housing bubble

This Peabody Award–winning "This American Life" episode traces how cheap global money, subprime lending, and Wall Street engineering inflated the housing bubble. Through vivid reporting and real voices, it became one of the defining works of 2000s financial journalism.

A star investment banker was fired, launching a decade-long court fight

Star bankers are the core of an investment banking firm's business, so when Perella Weinberg let their restructuring guru Mike Kramer go in 2015, he sued, launching a ten-year legal fight.

Ray Dalio considers betting against the US debt load in 1982 among his biggest failures

In the early days of his hedge fund, Bridgewater Associates, Ray Dalio calculated that the US had accumulated more debt than it was possible to repay. He took short positions in the market that backfired when the Federal Reserve cut interest rates and avoided a global economic collapse. Dalio lost everything and even had to borrow $4K from his dad—but often describes this experience as one of the most pivotal moments in his career.

See a real-time list of the most shorted stocks in the US

Every two weeks, the Nasdaq and New York Stock Exchange release the stocks with the most short positions. Some of the companies with the highest short positions as of early 2026 were Hims & Hers and Groupon.

Charlie Munger was Warren Buffett's right-hand man, serving as vice-chair at Berkshire Hathaway until his death in 2023.

Tesla short sellers benefited from the company's poor performance in 2025

Tesla was widely considered the most-shorted stock until 2024, despite consistent short-seller losses. Between 2016 and 2020, short sellers reportedly lost more than $11B as Tesla's stock price continued climbing. However, long-held short positions began paying out in 2025 as Musk's foray into politics and his eventual feud with President Trump hurt Tesla's stock performance. In 2025, Tesla short sellers made more than $10B.

Porsche briefly made Volkswagen the most valuable company in the world in 2008

In the wake of the 2008 global financial crisis, hedge funds began placing short positions on German automaker Volkswagen. Around the same time, Porsche began acquiring a majority stake in Volkswagen, which decreased the amount of available shares, or the "stock float." Porsche then announced that it owned more than 74% of the company, prompting short sellers to realize they had placed more short positions than were logistically possible given that less than 6% of the company's shares were available to trade. In what is largely recognized as the biggest short squeeze in history, Porsche made $10B, and hedge funds lost more than $30B.

How COVID-19 brought new investors into the market

With fees removed from the equation and more time at home thanks to pandemic-related lockdowns, Americans who had never bought or sold stocks before started participating in the market. Charles Schwab dubs this cohort “Generation Investor” and notes individuals from all age ranges took part in this phenomenon. Study up here.

A landmark hedge fund court case once reshaped high finance

Hedge fund traders tied to insider trading by probing prosecutors are relatively rare. When billionaire hedge fund legend Steve Cohen, founder of SAC Capital, pleaded guilty to trading on inside information, Wall Street trembled. The outcome of the case remains a cautionary tale for traders today.

Famed American investor Jesse Livermore made millions when the stock market crashed in 1929

Livermore made his first major short against rail company Union Pacific in 1906, coincidentally before an earthquake in San Francisco, which ultimately tanked share prices. During a financial panic the next year, JP Morgan reportedly asked Livermore to increase his long-term investments to restore hope and restabilize the market—which Livermore did. However, Livermore began betting against the market in 1929, sensing that stocks were too hot, and was one of the few people to benefit from the 1929 stock crash.

'Moneyball' author Michael Lewis believes sports betting is a problem for young men

The noted journalist and author of "Moneyball," "The Big Short," and "The Blind Side" has now fixed his discerning eye on the sports-betting industry. In this interview, he explains why he sees sports betting as a problem for American society, especially boys and young men, and why he believes the government needs to regulate the nascent industry more seriously.

Bear raiding is a manipulative tactic to bring a stock price down—and part of why short selling can be controversial

Bear raids occur when short sellers use manipulative tactics—like spreading false rumors or coordinating trades—to artificially drive down a stock's price and profit from short positions. Although bear raids are an illegal form of market manipulation, they can spook investors, prompting large selloffs of shares and causing a company's value to plummet. As a result, investors may be hesitant to invest in the company in the future, creating a feedback loop of stock downturn.

Historically, borrowing money from other people to purchase property was common until private financing companies—primarily building and loan associations—stepped in to offer mortgages to buyers.

The bond market is where bonds and other debt securities are traded

Bonds are fixed-income investments allowing individuals to lend a specific amount of money to a large entity, like a government or corporation, for a set amount of time in return for interest paid out over the life of the loan. The bond market is widely considered a key economic barometer.

Investors need a 'margin account' to short sell stock

Margin accounts are leveraged accounts through brokerage firms that allow investors to make trades without the full amount of capital on hand. Similar to a secured loan, margin accounts often require some form of collateral and typically have a cap on how much investors can borrow. However, trading with a margin account is much riskier than a traditional investment account. Fees and charged interest are due on margin accounts, regardless of trade performance, meaning it's possible for investors to lose more money than just their initial investment.

The South Sea Bubble was an 18th-century scandal that redefined speculation

This video illustrates how the South Sea Company in Britain sparked a stock boom in 1720, with promises of huge trading profits, driving shares to unprecedented heights before a sudden crash wiped out the fortunes of investors—including Isaac Newton, who lost an estimated £20K.

Retail investing by the numbers

When average Americans began pouring into the stock market, Wall Street wasn’t sure if its new guests were there to stay. But at the end of 2023, Public confidently declared that retail investors “weren’t going anywhere” after 30 million new individuals began buying and selling stock. Download the report to learn more here.