How To Model Changing Markets | Market Regimes in 10 Minutes скачать в хорошем качестве

How To Model Changing Markets | Market Regimes in 10 Minutes

Markets don’t behave like one stable machine. Sometimes they’re calm and mean-reverting. Sometimes they trend. And sometimes volatility explodes. In this video, we build a clear mathematical intuition for these market regimes — the “hidden states” that shape what you observe in returns.  We start with a simple problem: averages can hide the thing you care about. If half your data is calm and half is chaotic, the “average volatility” describes a market that almost never exists in reality. Then we walk through two practical tools to detect and track regimes without getting lost in heavy derivations:  First, EWMA volatility (RiskMetrics-style): a memory-based estimate that updates daily, shrinking after calm periods and jumping after big moves. One knob — lambda (λ) — controls how fast the model forgets the past.  Second, Markov regime models / Hidden Markov Models (HMM): a probabilistic machine that switches between hidden states (like “calm” and “volatile”) and updates a belief about which regime you’re in as new returns arrive.  The goal isn’t to worship a model. It’s to see the logic clearly: what each method assumes, what it captures, and where it breaks in real markets — especially when tails, liquidity, and correlation shifts matter most.  Keywords: market regimes, regime switching, EWMA, RiskMetrics, volatility clustering, Hidden Markov Model, HMM, quant finance, time series, risk management. ------------------------------------------------------------------------------------------------------------------------ On this channel we look at finance through the lens of mathematics. With visual Manim animations in a 3Blue1Brown inspired style, we break down concepts from quantitative finance, financial mathematics and probability for finance into intuitive stories. Videos cover topics like option pricing, stochastic processes, portfolio theory, market risk, bonds, hedging, statistics for finance and applied probability. The goal is to make abstract formulas feel visual, concrete and useful for real world investing and risk management. Whether you are a finance student, a future quant, or just curious about how modern markets really work, these visual math explanations are for you. Music provided by Millennials Melody Originals Watch: https://b.link/whk4d Free Download / Stream: https://b.link/z8bvx