The Price Impact of Institutional Herding

In this paper we develop a simple theoretical model to analyze the impact of institutional herding on asset prices. A growing empirical literature has come to the intriguing conclusion that institutional herding positively predicts short-term returns but negatively predicts long-term returns. We offer a theoretical resolution to this dichotomy. In our model, career-concerned money managers interact with profit-motivated proprietary traders and security dealers endowed with market power. We show that the reputational concerns of fund managers imply an endogenous tendency to imitate past trades, which impacts the prices of the assets they trade. In our main result, we show that institutional herding positively predicts short-term returns but negatively predicts long-term returns. Our theory thus provides a simple and unified framework within which to interpret the empirical literature on the price impact of institutional herding. In addition, our paper generates several new testable predictions linking institutional herding behavior, trading volume, and the time-series properties of stock returns.

[1]  Martin J. Gruber,et al.  Another puzzle: the growth in actively managed mutual funds , 1996, Annals of Operations Research.

[2]  R. Wermers,et al.  Mutual Fund Herding and the Impact on Stock Prices , 1998 .

[3]  Shmuel Kandel,et al.  The (Bad?) Timing of Mutual Fund Investors , 2005 .

[4]  Ron Kaniel,et al.  Equilibrium Prices in the Presence of Delegated Portfolio Management , 2006 .

[5]  Massimo Massa,et al.  Mutual Funds and Bubbles: The Surprising Role of Contractual Incentives , 2006 .

[6]  Robert Radcliffe,et al.  Liquidity and stock returns: An alternative test , 1998 .

[7]  Josef Lakonishok,et al.  The impact of institutional trading on stock prices , 1992 .

[8]  Russ Wermers,et al.  Mutual Fund Performance: An Empirical Decomposition into Stock-Picking Talent, Style, Transactions Costs, and Expenses , 2000 .

[9]  Eric K. Kelley,et al.  Institutional Herding and Future Stock Returns , 2009 .

[10]  Selim Topaloglu,et al.  The Dynamics of Institutional and Individual Trading , 2002 .

[11]  Terrance Odean,et al.  Learning to Be Overconfident , 1997 .

[12]  Xavier Vives,et al.  Short-Term Investment and the Informational Efficiency of the Market , 1994 .

[13]  Sheridan Titman,et al.  The Price Impact of Institutional Trading , 2001 .

[14]  Andrea Prat,et al.  Institutional Trade Persistence and Long-Term Equity Returns , 2007 .

[15]  Joshua D. Coval,et al.  Asset Fire Sales (and Purchases) in Equity Markets , 2005 .

[16]  Who Underreacts to Cash-Flow News? Evidence from Trading between Individuals and Institutions , 2002 .

[17]  Patrick J. Dennis,et al.  Who Blinks in Volatile Markets, Individuals or Institutions? , 2000 .

[18]  Tarun Chordia,et al.  Liquidity and Autocorrelations in Individual Stock Returns , 2005 .

[19]  Terrance Odean,et al.  Learning To Be Overcondent , 1997 .

[20]  Jiang Wang,et al.  Dynamic Volume-Return Relation of Individual Stocks , 2000 .

[21]  A. Krishnamurthy,et al.  Intermediary Asset Pricing , 2008 .

[22]  Maureen O'Hara,et al.  The Making of a Dealer Market: From Entry to Equilibrium in the Trading of Nasdaq Stocks , 2002 .

[23]  S. Bikhchandani,et al.  You have printed the following article : A Theory of Fads , Fashion , Custom , and Cultural Change as Informational Cascades , 2007 .

[24]  Wei Xiong,et al.  Speculative Trading and Stock Prices: Evidence from Chinese A-B Share Premia , 2005 .

[25]  Dimitri Vayanos,et al.  An Institutional Theory of Momentum and Reversal , 2008 .

[26]  Sheridan Titman,et al.  Individual Investor Trading and Stock Returns , 2004 .

[27]  Mark M. Carhart.  On Persistence in Mutual Fund Performance , 1997 .

[28]  Kent D. Daniel,et al.  Measuring mutual fund performance with characteristic-based benchmarks , 1997 .

[29]  R. Kalra,et al.  Mutual Fund Performance: An Empirical Decomposition into Stock-Picking Talent, Style, Transactions Costs, and Expenses , 2001 .

[30]  K. Brown,et al.  Of Tournaments and Temptations: An Analysis of Managerial Incentives in the Mutual Fund Industry , 1996 .

[31]  Paul R. Milgrom,et al.  Bid, ask and transaction prices in a specialist market with heterogeneously informed traders , 1985 .

[32]  Emerging Markets and Financial Intermediaries , 2007 .

[33]  D. Scharfstein,et al.  Herd Behavior and Investment , 1990 .

[34]  Robert A. Connolly,et al.  Momentum and Reversals in Equity‐Index Returns During Periods of Abnormal Turnover and Return Dispersion , 2003 .

[35]  J. Chevalier,et al.  Herding over the career , 1999 .

[36]  Andrea Frazzini,et al.  Dumb Money: Mutual Fund Flows and the Cross-Section of Stock Returns , 2005 .

[37]  Wei Xiong,et al.  Overconfidence and Speculative Bubbles , 2003, Journal of Political Economy.

[38]  Charles M. C. Lee,et al.  Price Momentum and Trading Volume , 1998 .

[39]  P. Schultz.  Who makes markets , 2003 .

[40]  Andrea Prat,et al.  Information aggregation in financial markets with career concerns , 2008, J. Econ. Theory.

[41]  A. Banerjee,et al.  A Simple Model of Herd Behavior , 1992 .

[42]  John R. Nofsinger,et al.  Herding and Feedback Trading by Institutional and Individual Investors , 1999 .

[43]  C. Avery,et al.  Multidimensional Uncertainty and Herd Behavior in Financial Markets , 1998 .

[44]  Charles M. C. Lee,et al.  Price Momentum and Trading Volume , 1998 .

[45]  Tarun Chordia,et al.  Alternative factor specifications, security characteristics, and the cross-section of expected stock returns , 1998 .

[46]  Dan Galai,et al.  Information Effects on the Bid‐Ask Spread , 1983 .

[47]  Wei Xiong,et al.  Asset Float and Speculative Bubbles , 2006 .

[48]  Peter Kondor,et al.  Fund Managers, Career Concerns, and Asset Price Volatility , 2009 .

[49]  Mark Grinblatt,et al.  The investment behavior and performance of various investor types: a study of Finland's unique data set , 2000 .

[50]  Stefan Nagel,et al.  Short sales, institutional investors and the cross-section of stock returns , 2005 .

[51]  R. Sias.  Institutional Herding , 2002 .

[52]  Burton Hollifield,et al.  Financial Intermediation and the Costs of Trading in an Opaque Market , 2005 .

[53]  L. Pedersen,et al.  Asset Pricing with Liquidity Risk , 2003 .

[54]  J. Stein,et al.  Disagreement and the Stock Market , 2007 .

[55]  S. Titman,et al.  Momentum Investment Strategies, Portfolio Performance, and Herding: A Study of Mutual Fund Behavior , 1994 .

[56]  Zhiguo He,et al.  Intermediation, Capital Immobility, and Asset Prices , 2006 .

[57]  Michael J. Cooper.  Filter Rules Based on Price and Volume in Individual Security Overreaction , 1999 .

[58]  Andrea Prat,et al.  Financial equilibrium with career concerns , 2006 .

[59]  Josef Lakonishok,et al.  The impact of institutional trading on stock prices * , 1991 .