Skip to Main Content
HBS Home
  • About
  • Academic Programs
  • Alumni
  • Faculty & Research
  • Baker Library
  • Giving
  • Harvard Business Review
  • Initiatives
  • News
  • Recruit
  • Map / Directions
Faculty & Research
  • Faculty
  • Research
  • Featured Topics
  • Academic Units
  • …→
  • Harvard Business School→
  • Faculty & Research→
Publications
Publications
  • October 2020
  • Article
  • Journal of Financial Economics

IQ from IP: Simplifying Search in Portfolio Choice

By: Huaizhi Chen, Lauren Cohen, Umit Gurun, Dong Lou and Christopher J. Malloy
  • Format:Print
ShareBar

Abstract

Using a novel database that tracks web traffic on the SEC’s EDGAR servers between 2004 and 2015, we show that mutual fund managers gather information on a very particular subset of firms and insiders, and their surveillance is very persistent over time. This tracking behavior has powerful implications for their portfolio choice and its information content. An institution that downloaded an insider-trading filing by a given firm last quarter increases its likelihood of downloading an insider-trading filing on the same firm by more than 41.3% this quarter. Moreover, the average tracked stock that an institution buys generates annualized alphas of between 9% to 18% relative to the purchase of an average non-tracked stock. We find that institutional managers tend to track members of the top management teams of firms (CEOs, CFOs, presidents, and board chairs) and tend to share educational and location-based commonalities with the specific insiders they choose to follow. Collectively, our results suggest that the information in tracked trades is important for fundamental firm value and is only revealed following the information-rich dual trading by insiders and linked institutions.

Keywords

Tracked Trades; Return Predictability; Institutional Trading; Insider Trading; Institutional Investing; Information; Investment Portfolio; Decisions; Management

Citation

Chen, Huaizhi, Lauren Cohen, Umit Gurun, Dong Lou, and Christopher J. Malloy. "IQ from IP: Simplifying Search in Portfolio Choice." Journal of Financial Economics 138, no. 1 (October 2020): 118–137. (Winner of the First Prize, Crowell Memorial Award for Best Paper in Quantitative Investments, PanAgora Asset Management, 2019.)
  • SSRN
  • Find it at Harvard

About The Author

Lauren H. Cohen

Finance
→More Publications

More from the Authors

    • February 2023
    • Faculty Research

    All Options on the Table: The Haber Family

    By: Lauren Cohen, Grace Headinger and Juan Ruiz
    • January 2023
    • Faculty Research

    Baofeng's Philanthropic Efforts in China

    By: Lauren Cohen, Hao Gao, Bo Li and Zhaoheng Gong
    • January 2023
    • Faculty Research

    Junson Capital (B): Digital Transparency In the Family Office

    By: Lauren Cohen, Hao Gao, Trang Duong, Grace Headinger and Keven Wang
More from the Authors
  • All Options on the Table: The Haber Family By: Lauren Cohen, Grace Headinger and Juan Ruiz
  • Baofeng's Philanthropic Efforts in China By: Lauren Cohen, Hao Gao, Bo Li and Zhaoheng Gong
  • Junson Capital (B): Digital Transparency In the Family Office By: Lauren Cohen, Hao Gao, Trang Duong, Grace Headinger and Keven Wang
ǁ
Campus Map
Harvard Business School
Soldiers Field
Boston, MA 02163
→Map & Directions
→More Contact Information
  • Make a Gift
  • Site Map
  • Jobs
  • Harvard University
  • Trademarks
  • Policies
  • Accessibility
  • Digital Accessibility
Copyright © President & Fellows of Harvard College