Large price changes on small scales
arXiv:cond-mat/0401055 · doi:10.1016/j.physa.2004.06.121
Abstract
In this study we examine the evolution of price, volume, and the bid-ask spread after extreme 15 minute intraday price changes on the NYSE and the NASDAQ. We find that due to strong behavioral trading there is an overreaction. Furthermore we find that volatility which increases sharply at the event decays according to a power law with an exponent of approximately 0.4, i.e., much faster than the autocorrelation function of volatility.
6 pages, 2 figures, APFA4 conference proceedings, to be published in Physica A, references updated
References in corpus (2)
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