In our empirical study we examine the dynamics of the price evolution of liquid stocks after experiencing a large intra-day price change, using data from the NYSE and the NASDAQ. We find a significant reversal for both intra-day price decreases and increases. Volatility, volume and, in the case of the NYSE, the bid--ask spread, which increase sharply at the event, stay significantly high days afterwards. The decay of the volatility follows a power law in accordance with the `Omori law'. While on the NYSE the large widening of the bid--ask spread eliminates most of the profits that can be achieved by an outside investor, on the NASDAQ the bid--ask spread stays almost constant, yielding significant short-term profits. The results thus give an insight into the size and speed of the realization of an excess return for providing liquidity in a turbulent market.
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Article provided by Taylor and Francis Journals in its journal Quantitative Finance.
Volume (Year): 6 (2006) Issue (Month): 4 (August) Pages: 283-295 Download reference. The following formats are available: HTML
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David M. Cutler & James M. Poterba & Lawrence H. Summers, 1989.
"What Moves Stock Prices?,"
NBER Working Papers
2538, National Bureau of Economic Research, Inc.
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David H. Cutler & James M. Poterba & Lawrence H. Summers, 1988.
"What Moves Stock Prices?,"
Working papers
487, Massachusetts Institute of Technology (MIT), Department of Economics.