Finance Papers

Document Type

Journal Article

Date of this Version

2009

Publication Source

Review of Financial Studies

Volume

22

Issue

5

Start Page

1955

Last Page

1980

DOI

10.1093/rfs/hhm083

Abstract

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. A part of the value of failing passes through to options prices: when failing is cheaper than borrowing, the relation between borrowing costs and options prices is significantly weaker. The remaining value is profit to the market maker, and its ability to profit despite competition between market makers appears to result from the cost advantage of larger market makers.

Copyright/Permission Statement

This is a pre-copyedited, author-produced PDF of an article accepted for publication in Review of Financial Studies following peer review. The version of record is available online at: http://dx.doi.org/10.1093/rfs/hhm083.

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Date Posted: 27 November 2017

This document has been peer reviewed.