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Entry, Exit, Market Makers, and the Bid- Ask Spread Sunil Wahal

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Entry, Exit, Market Makers, and the Bid-Ask Spread. Sunil Wahal. Background. The main objective is to understand the relation between competition of dealer market and entry (exit) of market makers Source of competition Instinet, other exchanges, SOES, institutions - PowerPoint PPT Presentation

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Page 1: Entry, Exit, Market Makers, and the Bid-Ask Spread

Entry, Exit, Market Makers, and the Bid-Ask Spread

Sunil Wahal

Page 2: Entry, Exit, Market Makers, and the Bid-Ask Spread

Background

• The main objective is to understand the relation between competition of dealer market and entry (exit) of market makers

• Source of competition– Instinet, other exchanges, SOES, institutions

• End-of-day quoted spread as a measure of competition– Pro and con

• Determinants of entry and exit of market markers for stocks on NNM– trading volume, number of trade, volatility, quoted spread,

price, market cap

Page 3: Entry, Exit, Market Makers, and the Bid-Ask Spread

Sample

• 5569 NNM stocks between 1982 and 1993• Calculate daily trading volume, number of trades

volatility, spread for each stocks using data period in which number of market makers remain unchanged

• Sample sorted into quintile

Page 4: Entry, Exit, Market Makers, and the Bid-Ask Spread
Page 5: Entry, Exit, Market Makers, and the Bid-Ask Spread
Page 6: Entry, Exit, Market Makers, and the Bid-Ask Spread
Page 7: Entry, Exit, Market Makers, and the Bid-Ask Spread
Page 8: Entry, Exit, Market Makers, and the Bid-Ask Spread
Page 9: Entry, Exit, Market Makers, and the Bid-Ask Spread
Page 10: Entry, Exit, Market Makers, and the Bid-Ask Spread
Page 11: Entry, Exit, Market Makers, and the Bid-Ask Spread
Page 12: Entry, Exit, Market Makers, and the Bid-Ask Spread
Page 13: Entry, Exit, Market Makers, and the Bid-Ask Spread

Conclusion

• Probability of entry and exit is affected by trading intensity, volatility, and quoted spread

• Entry (exit) is associated with spread decline (increase) after controlling for trading intensity and volatility– Larger scale of entry (exit) is associated with larger decline

(increase)• Spread changes are larger in magnitude for issues with

few market makers• The results are consistent with the competitive model

of dealer pricing


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