The Dot-Com Bubble Unmasked: How HMMs Detect Euphoria, Crash, and Recovery
Nov 4, 2025 · 12 min read · hmm dotcom-bubble market-regimes case-study regime-detection sector-divergence euphoria-detection tech-sector nasdaq risk-management open-source QQQ MSFT INTC CSCO AMZN SPY YHOO ·The Story of Irrational Exuberance At the NASDAQ peak on March 10, 2000, our Hidden Markov Model revealed a striking divergence: Amazon showed 85.2% bearish confidence while Microsoft peaked at 98.3% bullish. This stark regime divergence between speculative dot-coms and profitable technology companies foreshadowed …
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