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Journal of Finance Vol. 49 No. 5 1994

Why do NASDAQ Market Makers Avoid Odd‐Eighth Quotes?

William G. Christie; Paul Schultz1

1 GGD Amsterdam

Abstract

The NASDAQ multiple dealer market is designed to produce narrow bid‐ask spreads through the competition for order flow among individual dealers. However, we find that odd‐eighth quotes are virtually nonexistent for 70 of 100 actively traded NASDAQ securities, including Apple Computer and Lotus Development. The lack of odd‐eighth quotes cannot be explained by the negotiation hypothesis of Harris (1991) , trading activity, or other variables thought to impact spreads. This result implies that the inside spread for a large number of NASDAQ stocks is at least $0.25 and raises the question of whether NASDAQ dealers implicitly collude to maintain wide spreads.

DOI
10.1111/j.1540-6261.1994.tb04782.x
Volume
49
Issue
5
Pages
1813-1840
Language
en
Sources
crossref openalex

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