Stationary bootstrapping for realized covariations of high frequency financial data

Eunju Hwang, Dong Wan Shin

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


This paper studies the stationary bootstrap applicability for realized covariations of high frequency asynchronous financial data. The stationary bootstrap method, which is characterized by a block-bootstrap with random block length, is applied to estimate the integrated covariations. The bootstrap realized covariance, bootstrap realized regression coefficient and bootstrap realized correlation coefficient are proposed, and the validity of the stationary bootstrapping for them is established both for large sample and for finite sample. Consistencies of bootstrap distributions are established, which provide us valid stationary bootstrap confidence intervals. The bootstrap confidence intervals do not require a consistent estimator of a nuisance parameter arising from nonsynchronous unequally spaced sampling while those based on a normal asymptotic theory require a consistent estimator. A Monte-Carlo comparison reveals that the proposed stationary bootstrap confidence intervals have better coverage probabilities than those based on normal approximation.

Original languageEnglish
Pages (from-to)844-861
Number of pages18
Issue number4
StatePublished - 4 Jul 2017


  • Stationary bootstrap
  • realized correlation coefficient
  • realized covariance
  • realized regression coefficient


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