Do Short Sellers Front-Run Insider Sales?

Do Short Sellers Front-Run Insider Sales?
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卖空者会抢先进行内幕交易吗?

DOI:
10.2139/ssrn.1140694
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发表时间:
2011-01
期刊:
The Accounting Review
影响因子:
--
通讯作者:
Hai Lu
Hai Lu
中科院分区:
其他
文献类型:
--
作者:
Mozaffar Khan;Hai Lu

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摘要:我们研究了作为知情市场参与者的卖空者的行为,并考察了他们潜在的信息来源。使用新获得的高频卖空数据集,我们发现有证据表明,卖空行为在大额内幕交易之前显著增加,但并不是在小规模内幕交易之前。我们考察了一些解释,即卖空增加是由公开信息推动的,这些信息要么是关于公司的,要么是关于即将到来的内幕交易的。证据与这些解释不一致,但与信息泄露促成的领先是一致的。领跑者似乎集中在会计质量不佳的公司,这表明,当会计质量不佳时,有关大规模内幕交易的信息强化了卖空者对公司价值的负面看法。凝胶分类:G14、G18、G30、M41
ABSTRACT: We study the behavior of short sellers as informed market participants and examine potential sources of their information. Using a newly available dataset with high-frequency short sales data, we find evidence of significant increases in short sales immediately prior to large insider sales, but not prior to small insider sales. We examine a number of explanations that the increase in short sales is driven by public information, either about the firm or about the impending insider sale. The evidence is inconsistent with these explanations, but is consistent with front-running facilitated by leaked information. The front-running appears to be concentrated in firms with poor accounting quality, suggesting that information about a large insider sale reinforces short sellers' adverse opinion about firm value when accounting quality is poor. JEL Classifications: G14, G18, G30, M41
DOI: --
发表时间: 1997
影响因子: 12.6
作者:
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通讯作者: Craig Mackinlay
DOI: 10.2139/ssrn.541502
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