Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/43212
Authors: 
Pagano, Michael S.
Peng, Lin
Schwartz, Robert A.
Year of Publication: 
2008
Series/Report no.: 
CFS Working Paper 2008/45
Abstract: 
We assess the quality of opening and closing prices for Nasdaq stocks by examining the effect that opening and closing call auctions (introduced in 2004) have had on price formation. Our use of measurement intervals of one minute or less sharpens the picture of intra-day volatility accentuations: they are concentrated within the first two minutes after the open and the last minute prior to the close, with the overall pattern being stapleshaped rather than U-shaped. We find that Nasdaq's calls have reduced this volatility, reorganized order flow, and lowered volatility persistence. Opening and closing prices had previously contained appreciable transitory components which have been dampened by Nasdaq's market structure innovation
Subjects: 
Opening Price
Closing Price
Price Discovery
Intra-Day Volatility
Market Microstructure
Equity Markets
Call Market
Nasdaq
JEL: 
G14
D44
Persistent Identifier of the first edition: 
Document Type: 
Working Paper

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