Conditionally Gaussian random sequences for an integrated variance estimator with correlation between noise and returns

Stefano Peluso, Antonietta Mira and Pietro Muliere

Applied Stochastic Models in Business and Industry, 2019, vol. 35, issue 5, 1282-1297

Abstract: Correlation between microstructure noise and latent financial logarithmic returns is an empirically relevant phenomenon with sound theoretical justification. With few notable exceptions, all integrated variance estimators proposed in the financial literature are not designed to explicitly handle such a dependence, or handle it only in special settings. We provide an integrated variance estimator that is robust to correlated noise and returns. For this purpose, a generalization of the forward filtering backward sampling algorithm is proposed, to provide a sampling technique for a latent conditionally Gaussian random sequence. We apply our methodology to intraday Microsoft prices and compare it in a simulation study with established alternatives, showing an advantage in terms of root‐mean‐square error and dispersion.

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:wly:apsmbi:v:35:y:2019:i:5:p:1282-1297

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