
handle: 1871/36364
Quadratic covariation is a popular descriptive measure for the volatility of a multivariate price process. It is consistently estimated by the sum of outer products of high-frequency returns. The proposed realized outlyingness weighted covariation (ROWCov) is a weighted sum of outer products of high-frequency returns and downweights returns that, because of jumps or other reasons, are outliers under the Brownian semimartingale model. The ROWCov is positive semidefinite and remains consistent for the integrated covariance in the presence of a finite-activity jump process. We illustrate the usefulness of the estimator on five-minute returns on the transaction prices of the Dow Jones Industrial Average constituents.
REALIZED VOLATILITY, MODELS, DIFFUSION, high-frequency data, jump robustness, JUMPS, quadratic covariation, continuous-time methods, DETERMINANT ESTIMATOR, realized covolatility, C32, MATRIX, C22
REALIZED VOLATILITY, MODELS, DIFFUSION, high-frequency data, jump robustness, JUMPS, quadratic covariation, continuous-time methods, DETERMINANT ESTIMATOR, realized covolatility, C32, MATRIX, C22
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 38 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |
