Nejat Seyhun

Jerome B. and Eileen M. York Professor of Business Administration
Professor of Finance

Education
PHD University of Rochester 1984
MS University of Rochester 1981
BSEE Northwestern University 1976
Biography

Nejat’s research activity focuses on backdating of executive options, risk-return trade-off in asset prices, intra-day impact of insider trading, long-run performance of IPOs, managerial overconfidence, Chinese walls and conflicts of interest in securities firms, option pricing, and conflict between information efficiency and rewards to information gathering.  His backdating work with M.P. Narayanan has helped uncover one of the biggest corporate scandals of recent years, bringing to light a business practice with numerous legal, ethical and corporate governance implications.

Latest Faculty News & Research
“A Question About Your Money: Has Anything Truly Changed This Week,” https://www.nytimes.com/2023/03/18/your-money/bank-failures-finance-goals.html?searchResultPosition=1
Published Date
03/2023
Authors
New York Times
Source
New York Times
“Corporate Insiders are not Betting on a Market Rebound,” https://www.wsj.com/articles/corporate-insiders-arent-betting-on-a-market-rebound-11672889061?mod=Searchresults_pos1&page=1
Published Date
01/2023
Authors
Wall Street Journal
Source
Wall Street Journal
“CEO Stock Sales Raise Questions About Insider Trading,” https://www.wsj.com/articles/executive-stock-sales-questions-insider-trading-11656514551?mod=Searchresults_pos1&page=1
Published Date
06/2022
Authors
Wall Street Journal
Source
Wall Street Journal
Improper ‘Insider Charitable Giving’ is Widespread, Study Says, https://www.wsj.com/articles/insider-charitable-giving-11625418315?mod=searchresults_pos1&page=1
Published Date
7/2021
Authors
Mark Hulbert
Source
Wall Street Journal
Insider Giving
Published Date
10/2021
Authors
Avci, S; Schipani, C; Seyhun, N; Verstein, A.
Source
Duke Law Journal
Volume
71
Issue
3
Pages
619
Should Size Matter When Regulating Firms? Implications from Backdating of Executive Options
Published Date
2012
Authors
H. Nejat Seyhun, Deniz Anginer, Cindy Schipani, MP Narayanan
Source
New York University Journal of Legislation and Public Policy
Volume
15
Issue
1
Pages
1-44
Fraud on the Market: Analysis of the Efficiency of the Corporate Bond Market
Published Date
2011
Authors
H. Nejat Seyhun, Michael Hartzmark, Cindy Schipani
Source
Columbia Business Law Review
Volume
3
Pages
654-716
How Do Quotes and Prices Evolve Around Isolated Informed Trades?
Published Date
2010
Authors
H. Nejat Seyhun, Ahmet Can Inci
Source
Journal of Economics and Finance
Volume
10
Intraday Behavior of Stock Prices and Trades around Insider Trading
Published Date
2010
Authors
H. Nejat Seyhun, Ahmet Can Inci, Biao Lu
Source
Financial Management (FM)
Volume
39
Pages
323-363
Personal Finance for Every Challenges: Toward Financial Fortitude
Published Date
02/2022
Authors
Nejat Seyhun
Source
Cambridge Scholars Press