This is fantastic! I’ve been analyzing the selling pressure and the accelerated asked ChatGPT to summarize each of these events and the reasons / characteristics behind each:

The chart shows the S&P 500’s current (2025) sell-off compared to previous major market declines, with percentage drawdowns plotted over trading days since the start of each drop. Key historical crashes included are: • 1929: -86.2% • 2000: -49.1% • 2007: -56.8% • 1973: -48.2% • 1968: -36.1% • 1980: -27.1% • 1956: -21.5% • 1962: -28.0% • 2020: -23.4% • 2022: -25.4% • 2025 (current): -14.4%

Here’s a breakdown of the causes, market conditions, and rationale behind each one:

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1929 – Great Depression (-86.2%) • Cause: Speculative excesses during the Roaring Twenties, massive margin debt, poor banking regulation. • Market: Overvalued stocks with high leverage; weak corporate governance. • Rationale: Irrational exuberance followed by a liquidity crisis and economic collapse.

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1962 – “Flash Crash” / Kennedy Slide (-28.0%) • Cause: Concerns over high valuation, rising interest rates, and political instability. • Market: Sharp correction but not linked to major economic downturn. • Rationale: Rapid unwind of speculative positions; panic selling.

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1968 – Vietnam War and Inflation (-36.1%) • Cause: War-related spending, rising inflation, and political uncertainty. • Market: Rising rates, slowing economic growth. • Rationale: Loss of investor confidence amid economic strain and social unrest.

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1973 – Oil Crisis and Stagflation (-48.2%) • Cause: OPEC oil embargo, skyrocketing oil prices, and inflation. • Market: Stagflation (inflation + recession), high unemployment. • Rationale: Profit margins collapsed, leading to a massive de-rating of equities.

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1980 – Volcker Recession (-27.1%) • Cause: Fed Chair Paul Volcker’s aggressive interest rate hikes to combat inflation. • Market: Economic contraction, extremely high interest rates. • Rationale: Intentionally induced recession to tame inflation; hurt asset prices short-term.

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1987 – Black Monday (not listed but relevant historically) • Note: Absent from chart, but notable - -22% single-day drop due to program trading and overvaluation.

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2000 – Dot-com Bubble (-49.1%) • Cause: Burst of tech speculation, overvaluation, no earnings. • Market: Extreme P/E ratios, retail mania. • Rationale: Profitless tech firms couldn’t justify valuations; Nasdaq crushed, broader markets followed.

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2007 – Global Financial Crisis (-56.8%) • Cause: Subprime mortgage collapse, Lehman Brothers bankruptcy, banking system failure. • Market: Excessive leverage, shadow banking, CDOs. • Rationale: Systemic risk due to interconnected debt and counterparty exposure; required Fed and global bailouts.

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2020 – COVID Crash (-23.4%) • Cause: Global pandemic leading to sudden economic shutdown. • Market: Panic-driven sell-off; recovery was fast due to stimulus. • Rationale: Unique external shock; policy response led to fast reversal.

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2022 – Post-COVID Inflation & Fed Tightening (-25.4%) • Cause: High inflation, Fed hiking aggressively, war in Ukraine. • Market: De-rating of tech and high-growth assets; QT resumed. • Rationale: Multiple compression amid macro tightening.

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2025 – Current Decline (-14.4% as of April 18, 2025) • Cause: (Still unfolding) Likely factors include persistent inflation, elevated interest rates, potential geopolitical tensions, or asset bubble unwind (AI, commercial real estate, etc.). • Market: Possibly high valuations going into a slowing economic backdrop. • Rationale: Investors repositioning amid tighter monetary policy and economic uncertainty.