How high frequency trading affects a market index
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Published version
Date
2013-07-02
Authors
Kenett, Dror Y.
Ben-Jacob, Eshel
Stanley, H. Eugene
Gur-Gershgoren, Gitit
Version
Published version
OA Version
Citation
Dror Y. Kenett, Eshel Ben-Jacob, H. Eugene Stanley, Gitit Gur-Gershgoren. 2013. "How High Frequency Trading Affects a Market Index." SCIENTIFIC REPORTS, Volume 3. https://doi.org/10.1038/srep02110
Abstract
The relationship between a market index and its constituent stocks is complicated. While an index is a weighted average of its constituent stocks, when the investigated time scale is one day or longer the index has been found to have a stronger effect on the stocks than vice versa. We explore how this interaction changes in short time scales using high frequency data. Using a correlation-based analysis approach, we find that in short time scales stocks have a stronger influence on the index. These findings have implications for high frequency trading and suggest that the price of an index should be published on shorter time scales, as close as possible to those of the actual transaction time scale.
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License
Attribution 4.0 International