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A Trade-Based Analysis of Momentum

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Author Info
Soeren Hvidkjaer
Abstract

This article uses transactions data for all NYSE/AMEX stocks in the period 1983--2002 to study how investors trade in Jegadeesh and Titman's (1993) momentum portfolios. Among small trades, there is an extremely sluggish reaction to the past returns. For instance, an initial small-trade buying pressure exists for loser stocks, and it gradually converts into an intense selling pressure over the following year. The results are consistent with initial underreaction followed by delayed reaction among small traders. Moreover, small-trade imbalances during the formation period significantly affect momentum returns, suggesting that underreaction among small traders contributes to the momentum effect. Large traders, by contrast, show no evidence of underreaction, and large-trade imbalances have little impact on subsequent returns. Overall, the results suggest that momentum could partly be driven by the behavior of small traders. Copyright 2006, Oxford University Press.

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File URL: http://hdl.handle.net/10.1093/rfs/hhj016
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Publisher Info
Article provided by Oxford University Press for Society for Financial Studies in its journal The Review of Financial Studies.

Volume (Year): 19 (2006)
Issue (Month): 2 ()
Pages: 457-491
Download reference. The following formats are available: HTML (with abstract), plain text (with abstract), BibTeX, RIS (EndNote, RefMan, ProCite), ReDIF
Handle: RePEc:oup:rfinst:v:19:y:2006:i:2:p:457-491

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  1. Riccardo Ferretti & Francesco Pattarin, 2008. "Is public information really public? The role of newspapers," Centro Studi di Banca e Finanza (CEFIN) (Center for Studies in Banking and Finance) 08013, Universita di Modena e Reggio Emilia, Facoltà di Economia "Marco Biagi". [Downloadable!]
  2. Foucault, Thierry & Sraer, David & Thesmar, David, 2008. "Individual Investors and Volatility," CEPR Discussion Papers 6915, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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  3. Campbell, John Y & Ramadorai, Tarun & Schwartz, Allie, 2007. "Caught On Tape: Institutional Trading, Stock Returns, and Earnings Announcements," CEPR Discussion Papers 6390, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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