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  • John C. Coffee, Jr.: Event Contracts and Prediction Markets Comment bubble 3 By John C. Coffee, Jr.
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Columbia Law School's Blog on Corporations and the Capital Markets

Editorial Board John C. Coffee, Jr. Edward F. Greene Kathryn Judge

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A New Approach to Measuring Shareholder Damages in Securities Class Actions

By Michael McDonald September 11, 2024 by renholding

Securities class-action lawsuits play a crucial role in holding corporations accountable for financial misdeeds. They typically involve allegations of securities fraud, where a company makes misleading statements or omits important information that leads to an inflated stock price. When the …

Looking Under the Hood of Activist Fraud Campaigns

By Byung Hyun Ahn, Robert M. Bushman and Pano Patatoukas June 13, 2024 by renholding

Corporate fraud poses a significant agency cost for stock ownership. Activist short sellers, who conduct and publicize investigative research, play a crucial role in exposing such fraud, in contrast with most short sellers who quietly await price catalysts without public …

When Does Securities Litigation Affect Corporate Reputation?

By Dain C. Donelson, Antonis Kartapanis and Christopher G. Yust October 11, 2023 by renholding

Many academics, managers, lawyers, and others believe that nonmeritorious securities fraud class actions – those that will be dismissed or settled for nuisance amounts – damage corporate reputations. For example, litigation public relations experts claim that individuals adopt a “guilty …

How Market Feedback Affects CEO Pay

By C.S. Agnes Cheng, Iftekhar Hasan, Feng Tang and Jing Xie December 13, 2022 by renholding

Stock prices affect various corporate decisions such as the amount of CEO compensation, as emphasized in traditional pay-for-performance studies, and capital investment. However, an unanswered question is whether changes in firms’ stock price in a short window around events related …

How Board Gender Quotas Affect Stock Prices

By Carlos Fernandez and Shams Pathan December 1, 2022 by renholding

Women have traditionally suffered from discrimination in the labor market (Tatli et al., 2013) and are under-represented in upper management (Thams, Bendell and Terjesen, 2018). To address this widespread gender imbalance, many countries have implemented gender diversity policies ranging from …

Algorithmic Trading and How it Affects What Directors Learn from Stock Prices

By Jaewoo Kim, Jun Oh, Hojun Seo and Luo Zuo September 22, 2022 by renholding

Algorithmic trading (AT) is one of the most notable financial innovations in several decades and constitutes a substantial portion of recent trading in stock markets. However, evidence on the economic consequences of AT is mixed. On one hand, prior research …

The Causes and Consequences of Repurchasing Shares

By Alice A. Bonaime and Kathleen M. Kahle May 17, 2022 by renholding

Corporate payouts have reached record levels. Over the past half-century, publicly-held U.S. firms have more than tripled inflation-adjusted dividends, while real share repurchase values have ballooned from $5 billion in 1971 to almost $1 trillion in 2018 and become the …

How Firms’ Simultaneous Release of Information Affects Market Feedback

By Mustafa Ahci, Tim Martens and Christoph J. Sextroh February 24, 2022 by renholding

Can managers obtain more useful feedback from capital markets by disclosing pieces of information separately and at different times instead of bundling the information and releasing it at once? It is well known that capital markets’ response to firms’ announcements …

Are Climate-Change Risks Reflected in Stock Prices?

By Renato Faccini, Rastin Matin and George Skiadopoulos November 3, 2021 by renholding

Climate-change risks can result from physical forces like wildfires, floods, or droughts or from changes in policy, the so-called transition risks created by government actions or the adoption of new technologies. A key question for academics, policy makers, firms, and …

Short-Term Institutions, Analyst Recommendations, and Mispricing: The Role of Higher-Order Beliefs

By Martijn Cremers, Ankur Pareek and Zacharias Sautner August 4, 2021 by renholding

Discussions on the role of higher-order beliefs (investor beliefs about the beliefs of other investors) in financial markets can be traced back to Keynes’ (1936) comparison of the stock market to a beauty contest. Investors “are concerned,” he famously said, …

The Shareholder Perspective on Security Breaches

By Allen Michel, Jacob Oded and Israel Shaked October 24, 2019 by renholding

In a forthcoming paper, we explore the stock prices of companies during the period just before to just after an announcement that they have been hit with a computer breach.  We analyze all available public equity data by breach type …

How Missing SEC Filing Deadlines Affects a Company’s Stock Value

By Eli Bartov and Yaniv Konchitchki November 27, 2017 by renholding

Investors, hedge funds, regulators, banks, and attorneys want to know: What really happens when a company misses a regulatory deadline? In a new paper, we offer theory and quantitative analysis of the consequences of missing U.S. Securities and Exchange Commission …

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Each business day, our team sifts through blog posts, news stories, and other sources to keep up-to-date on relevant recent developments. The following links will take you to our recommended selections. To see the sources we follow click Filter Sources.

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Bloomberg
Amazon’s $11.6 Billion Globalstar Deal Amps Up Rivalry With Musk
April 14, 2026
Freshfields Blog
Regulators Start Policing Insider Trading on Predictions Markets
April 14, 2026
New York Post
Oracle Accused of Targeting Stock-Option Holders in Recent Layoffs
April 14, 2026
BBC News
Evergrande Founder Guilty of Fraud
April 14, 2026
Deal Lawyers.com
Chancery Enforces Forum-Selection Bylaw Before It Goes Into Effect
April 14, 2026
New York Times
Oil Shock Worse Than Some Thought
April 13, 2026
The Governance Beat
Trillium Uses Non-Lawsuit Tactic to Get Shareholder Proposal Included
April 13, 2026
Bloomberg
Trump’s World Liberty Investors Balk
April 13, 2026
Financial Times
Musk Hits Legal Losing Streak Ahead of Showdown With OpenAI’s Altman
April 13, 2026
Business Law Prof Blog
The Latest on Reincorporations
April 13, 2026
Dealbook
Bosses Wary of Crypto, PE in 401(K)s
April 12, 2026
Mint
White House Tells Staff No Futures Bets
April 12, 2026
Securities and Exchange Commission
SEC Employees Report Fraud, Get Cash
April 12, 2026
Yahoo Finance
Kalshi Wins Criminal Case Reprieve
April 12, 2026
Business Law Prof Blog
Exxon Makes Board Voters’ Sole Option
April 12, 2026
Wall Street Journal
Iran Finds New Crypto-Economy Fuel
April 9, 2026
Reuters
Paramount Seals Warner Deal Backing
April 9, 2026
D&O Diary
Lending Platform Upstart Hit With AI Related Securities Lawsuit
April 9, 2026
Bloomberg
Peterffy Belittles Insider Trading Bans
April 9, 2026
Financial Times
SEC Chair Says States Should Take Lead in Policing Corporate Behavior
April 9, 2026
Wall Street Journal
Meta Announces New AI Model
April 8, 2026
New York Times
Ackman Fund Bids for Universal Music
April 8, 2026
D&O Diary
Skechers Illustrates Take-Private Risks
April 8, 2026
Securities and Exchange Commission
David Woodcock to Head Enforcement
April 8, 2026
Deal Lawyers.com
Cyber Risks Rise After M&A Closings
April 8, 2026
D&O Diary
Collective Actions Rising Outside U.S.
April 7, 2026
New York Post
Dimon Warns of NYC Business Exodus
April 7, 2026
Wall Street Journal
Auditors Want AI to Handle Inventory
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Quinn Emanuel Insights
Con Law Challenges to FINRA Mount
April 7, 2026
Bloomberg
Jones Day Says Client Data Hacked
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Wall Street Journal
Amazon, Post Office OK Delivery Deal
April 6, 2026
Bloomberg
OpenAI, Anthropic, Google Unite to Combat Model Copying in China
April 6, 2026
The Governance Beat
White House Issues AI Regs Blueprint
April 6, 2026
D&O Diary
Eli Lilly Urges Supreme Court to Strike Down FCA’s Qui Tam Provisions
April 6, 2026
The Hill
FBI Calls Data Breach “Major Incident”
April 6, 2026
The Governance Beat
How to Handle Vanguard Schedule 13G Amendments in Firm Proxies
April 5, 2026
Wall Street Journal
Feta Fight Strains U.S., Europe Ties
April 5, 2026
CFTC Sues on Prediction Market Laws
April 5, 2026
Politico
Trump and Wall Street May Not See Eye to Eye on Quarterly Reports
April 5, 2026
Bloomberg
Trump Plan Cuts SEC Exam Funding
April 5, 2026
Wall Street Journal
Starbucks Seeks to Boost Barista Pay
April 2, 2026
D&O Diary
No D&O Coverage for “Securities Claim” If No Company Securities Involved
April 2, 2026
Bloomberg
SEC, Musk Say Fight Over Twitter Share Stockpile May Go to Trial
April 2, 2026
Fortune
Prediction Markets’ Insider Trading Spree May Be Coming to an End
April 2, 2026
Deal Lawyers.com
Delaware Chancery Addresses When “Mere Puffery” Becomes Fraud
April 2, 2026
Wall Street Journal
Anthropic Races to Limit Code Leak
April 1, 2026
Delaware Business Litigation Report
Chancery Says Employment-Related Misconduct Not Fiduciary Breach
April 1, 2026
New York Times
Technology Backlash at Schools Extends Far Beyond Phones
April 1, 2026
Sidley Enhanced Scrutiny
Delaware Chancery Extends Earnout Remedies Beyond Damages
April 1, 2026
Bloomberg
Elon Musk Faces New Setback in Lawsuits Over 2022 Twitter Buyout
April 1, 2026
D&O Diary
Tariff-Related Securities Suit Hits Social Media Platform Pinterest
March 31, 2026
Justice Department
Charges in Crypto-Exchange Hack
March 31, 2026
New York Times
SEC Shifts From Crypto Foe to Ally
March 31, 2026
Reuters
Delaware Judge Reassigns Musk Cases
March 31, 2026
EY Parthenon
PE Take-Private M&A Deals on Rise
March 31, 2026
Delaware Business Litigation Report
Delaware Chancery Denies Motion to End Coinbase Derivative Suit
March 30, 2026
CoinDesk
Washington State Sues Kalshi
March 30, 2026
pymnts
SEC Staff Down 18% Under Trump
March 30, 2026
Financial Times
Apollo Plans Second Headquarters
March 30, 2026
Bloomberg
SEC Shakeup Renews Dispute Over Wall Street, Crypto Enforcement
March 30, 2026
New York Post
Musk Lawyer Accuses SF Jury of Bias
March 29, 2026
New York Post
Elizabeth Holmes Catches a Break
March 29, 2026
Bloomberg
Crypto “Insurance” Not What Appears
March 29, 2026
Federal Trade Commission
FTC, DOJ Seek Comment on HSR Rule
March 29, 2026
Business Law Prof Blog
Courts Setting Very High PSLRA Bar
March 29, 2026
Dealbook
Military Drone Startup Raises $2 Billion
March 26, 2026
Delaware Business Litigation Report
Delaware Chancery Nixes Case Lacking Equitable Subject Matter Jurisdiction
March 26, 2026
D&O Diary
AI-Related Securities Suit Hits Power Supply Company
March 26, 2026
Sidley Enhanced Scrutiny
Pro-Merger Activist That Changed Its Mind Can’t Get Court to Block Deal
March 26, 2026
Deal Lawyers.com
Delaware Chancery Orders Equitable Extension of Earnout Window
March 26, 2026
The Governance Beat
SEC “SOX Group” to Target Auditors
March 25, 2026
Dealbook
What Sora’s End Says About OpenAI
March 25, 2026
D&O Diary
Tariff Pass-Through Litigation Expands
March 25, 2026
New York Post
Widow of British Billionaire Killed in Yacht Sinking Faces Bankruptcy
March 25, 2026
Bloomberg
SEC Must Release Musk Interview
March 25, 2026
Wall Street Journal
Judge Says Government Ban on Anthropic Looks Like Attempt to Punish
March 24, 2026
D&O Diary
Short Seller Report Prompts Securities Suit Against Private Credit Firm
March 24, 2026
Bloomberg
Polymarket Alters Insider Trading Rules
March 24, 2026
Reuters
SEC Ex-Enforcement Chief Clashed With Bosses on Trump Before Exit
March 24, 2026
Business Law Prof Blog
The Latest on Reincorporations
March 24, 2026
Wall Street Journal
Airline Economy Cabin Keeps Shrinking
March 23, 2026
Sidley Enhanced Scrutiny
Delaware Chancery Rules Firm Counsel Must Be Neutral in Board Deadlock
March 23, 2026
Bloomberg
SEC Team Is Targeting “Bad Actors”
March 23, 2026
CoinDesk
Is Bankman-Fried Angling for Pardon?
March 23, 2026
D&O Diary
Jury Says Musk Misled Twitter Investors
March 23, 2026
Bloomberg
OpenAI Plans to Double Headcount
March 22, 2026
Reuters
Musk Offers to Pay TSA Salaries
March 22, 2026
Wall Street Journal
New Weapons of Global Power Are Oil, Rare Earths, and Microchips
March 22, 2026
Freshfields' A Fresh Take
Less Burdensome HSR Form Is Back
March 22, 2026
D&O Diary
Prediction Markets Pose D&O Risks
March 22, 2026
Wall Street Journal
Big Banks Win Looser Capital Rules
March 19, 2026
Reuters
DOJ Charges 3 of Diverting AI to China
March 19, 2026
Bloomberg
DOJ Clears Nexstar’s Tegna Deal
March 19, 2026
The Governance Beat
The Latest on Shareholder Proposals
March 19, 2026
Wealth Management
FINRA Disciplinary Cases at Decade Low
March 19, 2026
Bloomberg
Private Credit Bad, But Not 2008 Bad
March 18, 2026
D&O Diary
Delaware Supremes Says De-SPACs Shielded by 3-Year Limitations Statute
March 18, 2026
CoinDesk
Kalshi Faces Arizona Criminal Charges
March 18, 2026
Law.com
Scotus May Hear SEC “Gag Rule” Suit
March 18, 2026
Financial Times
Musk’s Lawyers Sidestepped SEC Team in Twitter Case Settlement Talks
March 18, 2026
Reuters
SEC Issues Crypto Guidance
March 17, 2026
Cleary Enforcement Watch
Enforcers File Fund-Valuation Cases
March 17, 2026
Bloomberg
Judge Declines Calls from SBF’s Mom
March 17, 2026
Securities and Exchange Commission
Enforcement Chief Ryan Is Out
March 17, 2026
Wall Street Journal
Quarterly Reports on Their Last Legs
March 17, 2026
Delaware Business Litigation Report
Delaware Supreme Court Says Form Matters on Books & Records Demands
March 16, 2026
The Governance Beat
SEC Gives Foreign Private Issuers Section 16 Relief for Now
March 16, 2026
D&O Diary
9th Circuit Revives Funko Case
March 16, 2026
Securities and Exchange Commission
SEC Drops Nader Al-Naji Case
March 16, 2026
Securities Regulation and Corporate Governance Monitor
EDGAR Access Delays and Conditional No-Action Relief for Section 16(a) Filers
March 16, 2026
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