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Common price and volatility jumps in noisy high-frequency data

16 July 2014
M. Bibinger
Lars Winkelmann
ArXiv (abs)PDFHTML
Abstract

We introduce a statistical test for simultaneous jumps in the price of a financial asset and its volatility process. The proposed test is based on high-frequency data and is robust to market microstructure frictions. To test for and estimate volatility jumps locally at price jump arrival times, we design and analyze a nonparametric spectral estimator of the spot volatility process. A simulation study and an empirical example with NASDAQ order book data demonstrate the practicability of the proposed methods and highlight the important role played by price volatility co-jumps.

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