Failure is an Option: Impediments to Short Selling and Options Prices
Richard B. Evans
University of Virginia - Darden School of Business
Adam V. Reed
University of North Carolina Kenan-Flagler Business School
University of Pennsylvania - The Wharton School, Finance Department
David K. Musto
University of Pennsylvania - Finance Department
December 7, 2005
EFA 2003 Glasgow
Regulations allow market makers to short sell without borrowing stock, and the transactions of a major options market maker show that in most hard-to-borrow situations, it chooses not to borrow and instead fails to deliver stock to its buyers. Some of the value of failing passes through to option prices: when failing is cheaper than borrowing, the relation between borrowing costs and option prices is significantly weaker. The remaining value is profit to the market maker, and its ability to profit despite the usual competition between market makers appears to result from a cost advantage of larger market makers at failing.
Number of Pages in PDF File: 46
Date posted: August 1, 2003
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