Category Archives: Regime Shifts

Alpha Extraction and Trading Under Different Market Regimes

Market Noise and Alpha Signals One of the perennial problems in designing trading systems is noise in the data, which can often drown out an alpha signal.  This is turn creates difficulties for a trading system that relies on reading the signal, … Continue reading

Posted in Alpha, Forecasting, Natural Gas Futures, Regime Shifts, Signal Processing, Systematic Strategies, Volatility Modeling | Leave a comment

Quantitative Analysis of Fat Tails –

In this quantitative analysis I explore how, starting from the assumption of a stable, Gaussian distribution in a returns process, we evolve to a system that displays all the characteristics of empirical market data, notably time-dependent moments, high levels of … Continue reading

Posted in Fat Tails, Mathematica, Regime Shifts, Regime Switching, Uncategorized, Volatility Modeling | Tagged , , , , , , | Comments Off on Quantitative Analysis of Fat Tails –

Regime-Switching & Market State Modeling

The Excel workbook referred to in this post can be downloaded here. Market state models are amongst the most useful analytical techniques that can be helpful in developing alpha-signal generators.  That term covers a great deal of ground, with ideas … Continue reading

Posted in ARMA, Econometrics, Fat Tails, Forecasting, Markov State Models, Regime Shifts | Tagged , , , | Comments Off on Regime-Switching & Market State Modeling

Long Memory and Regime Shifts in Asset Volatility

This post covers quite a wide range of concepts in volatility modeling relating to long memory and regime shifts. The post discusses autocorrelation, long memory, fractional integration, black noise, white noise, Hurst Exponents, regime shift detections, Asian markets and various topics froms nonlinear dynamics. Continue reading

Posted in ARFIMA, Asian markets, Black Noise, Correlation Dimension, Correlation Integral, FIGARCH, Forecasting, Fractional Brownian Motion, Fractional Integration, Henon Attractor, Hurst Exponent, Logistic Attractor, Long Memory, Modeling, Nonlinear Dynamics, Pink Noise, Regime Shifts, Strange Attractor, Uncategorized, Volatility Modeling, White Noise | Tagged , , , , , , , , , , , , | Comments Off on Long Memory and Regime Shifts in Asset Volatility

Modeling Asset Volatility

I am planning a series of posts on the subject of asset volatility and option pricing and thought I would begin with a survey of some of the central ideas. The attached presentation on Modeling Asset Volatility sets out the foundation … Continue reading

Posted in Black Noise, Cointegration, Derivatives, Direction Prediction, Dispersion, Forecasting, Fractional Brownian Motion, Fractional Cointegration, Fractional Integration, Long Memory, Mean Reversion, Momentum, Multifactor Models, Options, Pink Noise, REGARCH, Regime Shifts, Volatility Modeling, White Noise | Tagged , , , , , , , , , , , , , , , , | Comments Off on Modeling Asset Volatility