Every market appears unpredictable until its behavior is classified. One day rewards momentum. The next punishes it. A quiet range becomes a violent trend. Correlations that once protected a portfolio suddenly rise together. The strategy has not necessarily stopped working. The market may have enter
Trading with Hidden Markov Models in Institutional Trading: How Professionals Detect Bull, Bear, Volatility, and Transition Regimes
Every market appears unpredictable until its behavior is classified. One day rewards momentum. The next punishes it. A quiet range becomes a violent trend. Correlations that once protected a portfolio suddenly rise together. The strategy has not necessarily stopped working. The environment may have