Tracking of Historical Volatility

Details Tracking of Historical Volatility Tracking of Historical Volatility

2004-04-15

arxiv.org/abs/math/0404277v1

Mathematics

Probability

20 pages, 4 figures

Scientific paper

We propose an adaptive algorithm for tracking of historical volatility. The algorithm is built under the assumption that the historical volatility function belongs to the Stone-Ibragimov-Khasminskii class of $k$ times differentiable functions with bounded highest derivative and its subclass of functions satisfying a differential inequalities. We construct an estimator of the Kalman filter type and show optimality of the estimator's convergence rate to zero as sample size $n\to\infty$. This estimator is in the framework of GARCH design, but a tuning procedure of its parameters is faster than with traditional GARCH techniques.

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