Market History
Twenty moments, from 1987 to 2022, where leverage, liquidity or trust broke down in a way that moved markets. Each one is a closed, verifiable event — not news that will need updating — with the risk-management lesson still worth knowing spelled out at the end.
- 1987October 19, 1987Stock Market Crash
Black Monday: The Day the Market Fell 22% in One Session
The Dow Jones Industrial Average fell 22.6% in a single trading day — still the largest one-day percentage decline in its history — with no single piece of news to explain it.
- 1992September 16, 1992Currency Crisis
Black Wednesday: Betting Against a Central Bank
The UK was forced out of the European Exchange Rate Mechanism in a single day after speculators, including George Soros, bet billions against the pound holding its pegged value.
- 1998September 1998Leverage & Derivatives
Long-Term Capital Management: When the Smartest People in the Room Used Too Much Leverage
A hedge fund run by Nobel laureates and star traders lost over $4 billion in a matter of weeks, threatening the wider financial system and forcing a Wall Street-funded bailout.
- 2000March 2000 – October 2002Stock Market Crash
The Dot-Com Bubble: When Growth Stories Replaced Profits
The Nasdaq Composite fell nearly 78% from its peak as investors realized that many internet companies trading at enormous valuations had little revenue and no path to profit.
- 2001October – December 2001Fraud & Collapse
Enron: Concentration Risk and the Cost of Trusting One Company Too Much
Once America's seventh-largest company by revenue, Enron collapsed into bankruptcy within weeks after accounting fraud that had hidden billions in debt was exposed — wiping out employees who held their retirement savings in company stock.
- 20082007 – 2009Systemic Risk
The 2008 Financial Crisis: How Leverage Turned a Housing Slowdown Into a Global Collapse
A downturn in the US housing market cascaded into a global financial crisis after highly leveraged bets on mortgage debt, spread across the banking system, turned manageable losses into a solvency crisis.
- 2008Exposed December 2008Fraud & Collapse
Bernie Madoff: The $65 Billion Ponzi Scheme That Ran for Decades
Bernie Madoff ran the largest Ponzi scheme in history, reporting steady, market-beating returns for decades that were entirely fabricated — the fraud only surfaced when the 2008 crisis triggered enough redemption requests to expose it.
- 2010May 6, 2010Systemic Risk
The Flash Crash: When the Market Fell 9% and Recovered in Minutes
The Dow Jones plunged around 9% in minutes — including a period where some stocks traded for pennies — before largely recovering the same afternoon, exposing how thin liquidity had become in electronic, algorithm-driven markets.
- 20102010 – 2012Systemic Risk
The European Sovereign Debt Crisis: When "Safe" Government Bonds Weren't
Greece, and later other eurozone countries, came close to defaulting on sovereign debt that investors had long treated as essentially risk-free — forcing a reassessment of what "safe" actually means in a currency union without a shared fiscal backstop.
- 2012August 1, 2012Leverage & Derivatives
Knight Capital: A $440 Million Loss in 45 Minutes From a Software Error
A botched software deployment caused Knight Capital's trading systems to flood the market with unintended orders, losing roughly $440 million in 45 minutes and destroying the firm — a pure technology and process failure, with no market crash involved at all.
- 2015January 15, 2015Currency Crisis
The Swiss Franc Shock: A Currency Peg That Broke Without Warning
The Swiss National Bank abruptly abandoned its franc-to-euro cap, sending the currency up as much as 30% in minutes and instantly wiping out — or reversing into deep negative balances — countless leveraged retail forex positions.
- 2016January 2016Stock Market Crash
China's Circuit Breaker Backfire: When a Safety Mechanism Made Things Worse
China introduced market-wide circuit breakers meant to calm panic selling — and pulled them after just four trading days, when the mechanism instead encouraged investors to sell faster, racing to get out before a halt locked them in.
- 2016June 23–24, 2016Currency Crisis
Brexit: An Overnight Vote That Repriced the Pound in Hours
The pound fell over 8% against the dollar within hours as referendum results came in showing the UK had voted to leave the European Union — a result most markets had been positioned against.
- 20172017 – 2018Crypto
Bitcoin's 2017 Bubble: From ~$1,000 to ~$20,000 and Back
Bitcoin rose roughly twentyfold in a single year on a wave of retail enthusiasm, then fell more than 80% over the following year — a textbook speculative bubble, compressed into crypto's characteristically extreme volatility.
- 2018February 5, 2018Leverage & Derivatives
Volmageddon: The Day Short Volatility Products Were Wiped Out
A sharp spike in market volatility triggered a feedback loop in products designed to profit from calm markets, destroying the value of one popular fund (XIV) by 96% in a single session and effectively ending it.
- 2021January 2021Leverage & Derivatives
GameStop: How a Crowded Short Trade Turned Into a Squeeze
A coordinated wave of retail buying, organized largely on social media, forced heavily shorted hedge funds to buy back shares at rapidly rising prices — sending GameStop up over 1,600% in weeks and inflicting billions in losses on short sellers.
- 2021March 2021Leverage & Derivatives
Archegos Capital: How One Fund's Hidden Leverage Cost Banks Billions
A little-known family office built enormous, highly leveraged concentrated positions through opaque derivatives, and its collapse in a single week forced a fire sale that cost global banks billions and helped end the careers of several senior executives.
- 2022May 2022Crypto
Terra/LUNA: How an Algorithmic Stablecoin Lost Its Peg and $40 Billion
TerraUSD, a stablecoin designed to hold its dollar peg through an algorithmic relationship with a sister token called LUNA, collapsed within days, erasing roughly $40 billion in value and triggering a wave of losses across the crypto industry.
- 2022November 2022Fraud & Collapse
FTX: When a Trusted Exchange Was Secretly Insolvent
FTX, one of the largest cryptocurrency exchanges in the world, collapsed within days after reporting revealed customer funds had been used to cover losses at a related trading firm — a stark lesson in counterparty and custody risk.
- 2022September 2022Systemic Risk
The UK Gilt Crisis: How Leveraged Pension Funds Nearly Broke the Bond Market
A UK government budget announcement triggered a sharp bond selloff that exposed hidden leverage inside pension funds, forcing an emergency central bank intervention within days to prevent a broader financial spiral.