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Advanced Regime Switching Models for Strategy Allocation

A rigorous, code-first path into regime detection and regime-switching strategy allocation for quant researcher aspirants, prop trading applicants, and traders scaling a systematic book. Goes from rule-based regime flags through Hidden Markov Models, Markov-switching regression, regime-conditional strategy design, capital allocation, rigorous backtesting, and risk management through regime transitions. Built on real Nifty, Bank Nifty, and NSE data, with Python throughout.

MODULES

9

DURATION

~6.9 hrs

TRACK

Quantitative Finance

Access Level

LEARNER

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Everything included

Full Text Playbooks

Actionable Exercises

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Curriculum Breakdown

Chapter 1: Why Markets Have Regimes

4 Lessons

Why One Strategy Never Works Forever: The Case for Regime Awareness9 min read

Anatomy of a Regime: Trend, Volatility, and Correlation Shifts10 min read

Regimes in Indian Markets: 2008, 2020, and the 2022 Rate-Hike Cycle11 min read

Regime Persistence vs Regime Noise: How Long Do Regimes Actually Last?9 min read

Chapter 2: Detecting Regimes: From Rules to Statistics

4 Lessons

Rule-Based Regime Flags: Moving Averages and India VIX Thresholds10 min read

Rolling Volatility and Drawdown as Regime Signals9 min read

Why Rule-Based Detection Breaks Down: Whipsaws and Arbitrary Thresholds10 min read

From Rules to Probabilities: An Introduction to Statistical Regime Models10 min read

Chapter 3: Hidden Markov Models for Regime Identification

5 Lessons

Hidden Markov Models Explained: States You Can't See, Data You Can11 min read

Transition Matrices and Emission Distributions on Nifty Returns12 min read

The Viterbi Algorithm: Decoding the Most Likely Regime Path11 min read

Fitting an HMM in Python with hmmlearn on Nifty 50 Data13 min read

Choosing the Number of Regimes: AIC, BIC, and Economic Sense10 min read

Chapter 4: Markov Switching Regression Models

4 Lessons

Markov Switching Models: Letting Parameters Change With the Regime10 min read

Markov Switching Autoregression for Volatility Modeling11 min read

Implementing Markov Switching Models in Python with statsmodels12 min read

Case Study: Regime-Switching Volatility in Bank Nifty12 min read

Chapter 5: Regime-Conditional Strategy Design

5 Lessons

Why Momentum and Mean Reversion Can't Share One Rulebook9 min read

Matching Strategies to Regimes: A Practical Framework10 min read

Case Study: Switching Between Momentum and Mean Reversion on Nifty 50 Stocks12 min read

Volatility Strategies Across Regimes: Options Selling vs Options Buying11 min read

Building a Regime-Strategy Compatibility Matrix9 min read

Chapter 6: Portfolio and Capital Allocation Across Regimes

4 Lessons

Regime-Aware Position Sizing: Beyond Fixed Fractional Bets10 min read

Dynamic Leverage: Scaling Exposure With Regime Confidence10 min read

Risk Budgeting Across Multiple Systematic Strategies11 min read

Case Study: Reallocating Capital Between Strategies Through a Regime Shift11 min read

Chapter 7: Backtesting Regime-Switching Systems Rigorously

5 Lessons

Look-Ahead Bias in Regime Labels: The Silent Backtest Killer10 min read

Walk-Forward Validation for Regime-Switching Strategies11 min read

Regime Detection Lag: Why Your Model Is Always a Little Late9 min read

In-Sample Overfitting: How Many Regimes Is Too Many?10 min read

Case Study: Backtesting a Regime-Switching System on Nifty 50, 2015 to 202413 min read

Chapter 8: Risk Management Through Regime Transitions

4 Lessons

Whipsaws at Regime Boundaries and How to Survive Them9 min read

Transition Risk: Position Sizing During Ambiguous Regimes10 min read

Drawdown Control When the Regime Model Is Wrong10 min read

Circuit Breakers and Kill Switches for Systematic Regime Strategies10 min read

Chapter 9: Capstone: Building a Complete Regime-Switching Allocation System

4 Lessons

System Architecture: Wiring Detection, Strategy Selection, and Allocation Together10 min read

Building the Complete Pipeline in Python on NSE Data13 min read

Stress-Testing the System Across 2008, 2020, and 202212 min read

From Backtest to Paper Trading: Operationalizing a Regime-Switching System11 min read