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Journal of Financial Economics Vol. 92 No. 1 2009

Caught on tape: Institutional trading, stock returns, and earnings announcements

John Y. Campbell1,2; Tarun Ramadorai3,4; Allie Schwartz5

1 National Bureau of Economic Research · 2 Harvard University Press · 3 University of Oxford · 4 Centre for Economic Policy Research · 5 Cornerstone Research, 599 Lexington Ave, 43rd Floor, New York, NY 10022, USA

Abstract

Many questions about institutional trading can only be answered if one tracks high-frequency changes in institutional ownership. In the United States, however, institutions are only required to report their ownership quarterly in 13-F filings. We infer daily institutional trading behavior from the “tape”, the Transactions and Quotes database of the New York Stock Exchange, using a sophisticated method that best predicts quarterly 13-F data from trades of different sizes. We find that daily institutional trades are highly persistent and respond positively to recent daily returns but negatively to longer-term past daily returns. Institutional trades, particularly sells, appear to generate short-term losses—possibly reflecting institutional demand for liquidity—but longer-term profits. One source of these profits is that institutions anticipate both earnings surprises and post-earnings announcement drift. These results are different from those obtained using a standard size cutoff rule for institutional trades.

DOI
10.1016/j.jfineco.2008.03.006
Volume
92
Issue
1
Pages
66-91
Language
en
Sources
crossref bibtex:phds-export.bib openalex openalex

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