Publications

Article

Investor Activism and Takeovers

By: Robin Greenwood and Michael Schor

Recent work documents large positive abnormal returns around the time that a hedge fund announces its activist intentions with a publicly listed firm. We show that these returns are largely explained by the ability of activists to force target firms into a takeover: In... View Details

Keywords: Mergers and Acquisitions; Private Equity; Investment Return; Investment Activism; Investment Portfolio; Public Ownership

January 2019 (Revised March 2020)
Case

Blackstone Alternative Asset Management in 2018

By: Emil Siriwardane, Luis M. Viceira and Shawn O'Brien

In early 2018, Blackstone announced that John McCormick would succeed Tom Hill as President and Chief Executive Officer of Blackstone Alternative Asset Management (BAAM), the largest fund-of-hedge funds in the world by a sizeable margin. As new CEO, McCormick must... View Details

Keywords: Asset Management; Expansion; Strategy; Decision Choices and Conditions; Financial Services Industry

29 Aug 2017
First Look

First Look at New Research and Ideas, August 29

Domeyard: Starting a High-Frequency Trading (HFT) Hedge Fund The principals at Domeyard, a start-up high frequency trading (HFT) hedge fund based... View Details

Keywords: Sean Silverthorne

Stuart C. Gilson

Professor Stuart Gilson is the Steven R. Fenster Professor of Business Administration at Harvard Business School, and former chairman of the Finance Unit. His research, teaching, and consulting focuses on the financial, business, and legal strategies that companies... View Details

Keywords: investment banking industry; legal services

November 2013 (Revised May 2023)
Case

Valuing Yahoo! in 2013

By: Luis M. Viceira and Atul Khosla

In late July 2013, Danielle Engle, Managing Director of Clairemont Capital, was contemplating what to do about a large investment her fund had in the stock of Yahoo! Inc. In mid-2012, Clairemont had invested nearly $75M in Yahoo! after the tech company settled a highly... View Details

Keywords: Investment; Decision Making; Investment Activism; Business Model; Growth and Development Strategy; Valuation

November 1984
Background Note

Black-Scholes Option Pricing Program for the HP 12C Calculator

By: Andre F. Perold

Contains a program that can be used on the HP12C pocket calculator to compute the Black-Scholes option price and the associated hedge ratio. The program must be given the following parameters: the exercise price, the risk-free rate, the time to expiration, and the... View Details

Keywords: Stock Options; Investment Funds; Price; Management; Software

Find at Harvard

October 2018 (Revised September 2022)
Case

Stock-Based Compensation at Twitter

By: Jonas Heese, Zeya Yang and Mike Young

Olivia Nash, an analyst at leading hedge fund BlueShark Capital Management, had just finished listening to the hour-long earnings call for Twitter’s Q4 2017 results. Was Twitter doing well? That depended on which numbers she chose to believe. According to Generally... View Details

Keywords: Twitter; Non-GAAP Disclosure; Stock-based Compensation; Earnings Management; Corporate Disclosure; Compensation and Benefits; Stocks; Measurement and Metrics

2015
Chapter

Thirty Years of Evolution in the Roles of Institutional Investors in Corporate Governance

By: John C. Coates

This chapter presents evidence that shifts in the composition and roles of institutions have been at least as important, if not more so, than aggregate increases in institutional ownership. Over the past 30 years, institutions have come to play more varied roles in... View Details

Emily McComb is a Senior Lecturer in the Finance Unit at HBS, teaching "Finance 2" in the required curriculum of the MBA program, as well as a co-leader of the HBS Impact Investment Fund in the elective curriculum. Prior to joining the HBS faculty in 2017, Emily was... View Details

Keywords: financial services; health care

Research Summary

Overview

My focus is empirical financial accounting research, with particular interests in governance, valuation, M&A, and short-sellers. All three of my papers to date fall under the broad heading of “alternative governance mechanisms”—studies of how accounting information is... View Details

Keywords: Mergers and Acquisitions; Corporate Governance; Valuation; Law

Research Summary

Overview

My focus is empirical financial accounting research, with particular interests in governance, valuation, M&A, and short-sellers. All three of my papers to date fall under the broad heading of “alternative governance mechanisms”—studies of how accounting information is... View Details

Keywords: Mergers and Acquisitions; Corporate Governance; Valuation; Law

March 2018 (Revised March 2018)
Teaching Note

OpenInvest

By: Boris Vallee and Caitlin Reimers Brumme

Founded by a team of hedge fund and NGO alumni, OpenInvest launched its platform in 2015 to enable retail investors to tailor their portfolio to their personal values in an automated way, for instance by screening out weapon manufacturers stocks or overweighting LGBTQ... View Details

Keywords: Socially Responsible Investing; Investing For Impact; Robo-advisors; Investment; Values and Beliefs; Customization and Personalization; Technology; Financial Services Industry

April 2015 (Revised April 2015)
Case

Yale University Investments Office: February 2015

By: Josh Lerner

David Swensen and the Investments Office staff must decide whether to continue to allocate the bulk of the university's endowment to illiquid investments—hedge funds, private equity, real estate—given the impact of the recent market turmoil. The case explores the risks... View Details

Keywords: Asset Management; Resource Allocation; Investment; Venture Capital; Investment Funds; Property; Private Equity

October 2011 (Revised March 2013)
Case

Yale University Investments Office: February 2011

By: Josh Lerner and Ann Leamon

David Swensen and the Investments Office staff must decide whether to continue to allocate the bulk of the university's endowment to illiquid investments—hedge funds, private equity, real estate—given the impact of the recent market turmoil. The case explores the risks... View Details

Keywords: Asset Management; Resource Allocation; Investment; Venture Capital; Investment Funds; Property; Private Equity

September 2024
Article

Activist Directors: Determinants and Consequences

By: Ian D. Gow, Sa-Pyung Sean Shin and Suraj Srinivasan

This paper examines determinants and consequences of hedge fund activism, focusing on activist directors, i.e., directors appointed in response to activist demands. Using a sample of 3,259 activism events from 2004 to 2016, we identify 1,623 activist directors.... View Details

Keywords: Governing and Advisory Boards; Investment Activism; Business and Shareholder Relations

28 May 2013
First Look

First Look: May 28

fund. Purchase this case: http://hbr.org/search/813157-PDF-ENG Harvard Business School Case 113-120 NovaStar Financial: A Short Seller's Battle The NovaStar case describes the challenges faced by short seller Marc Cohodes of hedge View Details

Keywords: Sean Silverthorne

Guhan Subramanian

Guhan Subramanian is the Joseph Flom Professor of Law and Business at the Harvard Law School and the Douglas Weaver Professor of Business Law at the Harvard Business School. He is the first person in the history of Harvard University to hold... View Details

March 2009 (Revised March 2010)
Case

Groupe Eurotunnel S.A. (A)

By: Stuart C. Gilson, Vincent Marie Dessain and Sarah Abbott

In the summer of 2006, the chairman and CEO of Eurotunnel Group is faced with the decision whether to file for bankruptcy protection, after having failed to gain creditor approval of an ambitious out-of-court restructuring plan. The company, which has been attempting... View Details

Keywords: Restructuring; Capital Structure; Insolvency and Bankruptcy; Laws and Statutes; Risk Management; Rail Industry; France; United Kingdom

September 2022 (Revised January 2023)
Case

York Capital CLOs and WorldStrides International

By: Victoria Ivashina and William Vrattos

The case follows the debt restructuring of WorldStrides International, a travel program provider in the education market, after the onset of COVID-19. The pandemic severely impacted the travel industry, creating challenges for many companies like WorldStrides, which... View Details

Keywords: COVID-19 Pandemic; Debt Restructuring; CLO; Compliance; Debt Securities; Financing and Loans; Decision Making; Travel Industry; Education Industry