Abstract
Semimartingale probabilistic setups lead to very useful volatility estimation. The integrated volatility can be consistently estimated by the realized one according to the quadratic variation principle, even if the convergence speed can result relatively slow, depending on noise and market microstructure effects. We show, experimentally, that scale transforms based on wavelets and the corresponding cumulative periodogram estimators may offer comparable numerical performance in measuring the quadratic variation limit, thus minimizing the discrepancy between realized and integrated volatility.
Original language | English (US) |
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Pages (from-to) | 122-127 |
Number of pages | 6 |
Journal | Physica A: Statistical Mechanics and its Applications |
Volume | 344 |
Issue number | 1-2 |
DOIs | |
State | Published - Dec 1 2004 |
Externally published | Yes |
Event | Applications of Physics in Financial Analysis 4 (APFA4) - Warsaw, Poland Duration: Nov 13 2003 → Nov 15 2003 |
Keywords
- Integrated and realized volatility
- Multiscale stochastic processes
- Semimartingales
- Spectral analysis
ASJC Scopus subject areas
- Statistics and Probability
- Condensed Matter Physics