Seminar – Hedge Fund Holdings & Stock Market Efficiency | CJBS Insight

We examine the relation between changes in hedge fund stock holdings and measures of informational efficiency of equity prices derived from transactions data, and find that, on average, increased hedge fund ownership leads to significant improvements in the informational efficiency of equity prices.

The contribution of hedge funds to price efficiency is greater than the contributions of other types of institutional investors, such as mutual funds or banks.

However, stocks held by hedge funds experienced extreme declines in price efficiency during liquidity crises, most notably in the last quarter of , and the declines were most severe in stocks held by hedge funds connected to Lehman Brothers and hedge funds using leverage.

Bing Liang is Professor of Finance at Isenberg School of Management, University of Massachusetts, where he received a College Outstanding Teaching Award in He is Editor of Journal of Alternative Investments , Associate Editor of Journal of Investment Management , and on the Editorial Boards of European Financial Management and Journal of Investment Consulting.

Professor Liang received his PhD from the University of Iowa in Members of the University of Cambridge. Study at Cambridge About the University Research at Cambridge.

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