## Abstract This paper offers new evidence on informed trading around merger and acquisition announcements from the UK equity and options market. The analysis suggests that in about 25β33% of events there is abnormal option trading volume during the month that precedes the announcement. Such eviden
The impact of off-market trading on liquidity: Evidence from the Australian options market
β Scribed by Andrew Lepone; Jin Young Yang
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 109 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0270-7314
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
This study investigates the impact of reducing the contract size threshold for offβmarket trading on transaction costs in an options market. This study provides evidence that market makers compete more aggressively for smallβtoβmedium trades and quote midβsize depths more often after the regime change. Results also indicate that smallβtoβmedium trades incur lower transaction costs; however, large trades that are executed on the central limit order book do not benefit from the structural transition. Given recent frictions imposed by regulators on equity markets, these results suggest that options markets provide an effective means for investors to replicate shortβselling in underlying securities. Β© 2009 Wiley Periodicals, Inc. Jrl Fut Mark 30:361β377, 2010
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