Historical Major Bear Markets in the U.S. Stock Market

1️⃣ 1929–1932: The Great Depression Bear Market
Trigger: Wall Street Crash
Core Causes + Process:
Preceding period of rampant leverage speculation, with stock prices severely detached from fundamentals; interest rate hikes and liquidity tightening burst the bubble, triggering a chain reaction of sell-offs; subsequently, a wave of bank failures spread, credit systems collapsed, corporate bankruptcies and unemployment surged, and the stock market continued to decline in panic.
2️⃣ 1973–1974: Stagflation Bear Market
Trigger: Oil Crisis
Core Causes + Process:
Skyrocketing oil prices drove inflation up, causing corporate costs to soar; economic growth stalled or contracted, creating stagflation; policies swung between fighting inflation and supporting growth, leading to profit and valuation declines, persistent market downturns, and long-term low confidence.
3️⃣ 1987: Black Monday
Trigger: Black Monday
Core Causes + Process:
High valuations combined with upward pressure on interest rates made the market fragile; algorithmic trading and portfolio insurance strategies triggered automatic sell-offs, liquidity dried up instantly; panic selling amplified the decline in a very short time, resulting in a single-day crash.
4️⃣ 2000–2002: Dot-com Bubble Burst
Trigger: Dot-com Bubble
Core Causes + Process:
The internet concept drove extreme valuation inflation, with many companies lacking earnings support; interest rate hikes and earnings disappointments reversed expectations; capital withdrew from growth stocks, technology sector declined consecutively, the bubble gradually deflated, and the bear market lengthened.
5️⃣ 2007–2009: Global Financial Crisis
Trigger: Subprime Mortgage Crisis
Core Causes + Process:
Real estate bubble combined with widespread subprime lending, risks amplified through financial innovation; falling home prices triggered defaults, asset quality of financial institutions deteriorated; credit markets froze, systemic risk erupted, and the stock market plunged sharply amid deleveraging.
6️⃣ 2020: Pandemic Flash Crash
Trigger: COVID-19 Pandemic
Core Causes + Process:
The pandemic caused a sudden halt in global economic activity, with supply chains and demand contracting simultaneously; markets rapidly priced in uncertainty, triggering panic selling; however, large-scale fiscal and monetary stimulus quickly injected liquidity, leading to a swift rebound.
7️⃣ 2022: Rate Hike Bear Market
Trigger: Global Inflation Crisis of 2022
Core Causes + Process:
Post-pandemic demand recovery combined with supply constraints drove high inflation; the Federal Reserve aggressively raised interest rates and reduced balance sheets, rapidly tightening liquidity; rising risk-free rates compressed valuations, growth stocks led declines, and the market experienced systemic valuation re-pricing.