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  • John C. Coffee, Jr.: Event Contracts and Prediction Markets Comment bubble 3 By John C. Coffee, Jr.
  • Leveraging Information Forcing in Good Faith By Hillary Sale
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  • Will the Common Good Guys Come to the Shootout in SEC v. Jarkesy? And Why It Matters By Eric W. Orts
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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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s&p 500

The Good and Bad of the Revolving Door Depend on Context

By Asaf Eckstein, Ziv Granov and Ariel Shillo October 27, 2025 by renholding

Policymakers and academics have extensively debated the extent and the nature of the revolving door phenomenon – the movement of workers between the government and the private sector. Proponents claim that the flow of former regulators to commercial firms fosters …

Boardroom Demographic Diversity Hits Record Levels as Substantive Diversity Emerges

By Lawrence A. Cunningham December 10, 2024 by renholding

Fascinating trends are afoot in corporate boardrooms, according to data compiled by The Conference Board and its partners, including us at the University of Delaware’s Weinberg Center for Corporate Governance and collaborators from KPMG, Russell Reynolds, and ESGAUGE.

Our new …

Credentials Matter, but Only for Men: Evidence from the S&P 500

By Peter Cziraki and Adriana Z. Robertson December 1, 2021 by renholding

Gender diversity in the boardroom and the C-suite is one of the most contentious topics in corporate governance. Proponents of greater diversity argue that the lack of women directors and top executives is a missed opportunity and that increasing their …

ISS Discusses Liquidity Behavior in the S&P 500

By Henry Yegerman June 8, 2021 by renholding

As a large cap index all the constituents of the S&P 500 are highly liquid. This is certainly true compared to mid-cap or small cap stocks. There are, though, high, and low rent districts within the S&P and the most …

Keeping Up with the Joneses and the Real Effects of S&P 500 Inclusion

By Benjamin Bennett, René M. Stulz and Zexi Wang May 27, 2021 by renholding

The S&P 500 index is the most visible and prestigious broad-based stock index in the U.S. Being included in it means joining an exclusive club that confers prestige on its members, as, for instance, many articles noted when Tesla was …

Discretionary Decision-Making and the S&P 500 Index

By Bernard S. Sharfman and Vincent Deluard March 30, 2021 by renholding

Discretion is an integral part of how indices, including stock market indices, are constituted, according to professors Rauterberg and Verstein and Robertson (here and here), and the S&P 500 index is no exception.

The S&P 500 is a …

Has the Stock Market Become Less Representative of the Economy?

By Frederik P. Schlingemann and René M. Stulz October 19, 2020 by renholding

In the summer of 2020, with the U.S. economy bearing the impact of the COVID-19 pandemic, the unemployment rate was as high as it had been any time since 1948, and the NASDAQ and the S&P 500 indices reached their …

Insider Trading and Geographic Proximity: Evidence from Covid-19

By Erin Henry, George A. Plesko and Caleb Rawson September 1, 2020 by renholding

The COVID-19 pandemic has dramatically changed how businesses operate, resulting in unprecedented stock market effects. While the U.S. stock market has historically shown little to no reaction to an infectious disease outbreak, COVID-19 precipitated a global stock market downturn now …

Exequity Discusses S&P 500 Companies’ Use of “Relative Total Shareholder Return”

By Ben Burney July 24, 2020 by renholding

The economic consequences of the COVID-19 pandemic have upended countless budgets for 2020 and rendered long-term forecasts speculative at best. By now, most companies providing financial guidance have withdrawn it. Uncertainty abounds.

All the while, investors, proxy advisors, and other …

Designing Dual Class Sunsets: The Case for a Transfer-Centered Approach

By Marc Moore December 19, 2019 by renholding

Dual class capital structures have spread exponentially in recent years across much of the corporate world, as has previously been reported on this blog. Dual class listed companies today account for around $4 trillion of US total stock market value …

Corporate Behavior and the Tax Cuts and Jobs Act

By Nicholas Cohen and Manoj Viswanathan October 30, 2019 by renholding

How has the U.S. Tax Cuts and Jobs Act of 2017 changed corporate behavior? In addition to reducing the corporate income tax rate to a flat 21 percent from a high of 35 percent, the TCJA changed other important rules …

Stock Market Indices: Inside the Black Box

By Anita Anand and Adriana Z. Robertson March 21, 2018 by renholding

The news that a whistleblower contacted U.S. regulators last month about alleged manipulation of the Chicago Board Options Exchange Volatility Index, or VIX, highlights near universal reliance on information that stock market indices provide. While the VIX is not itself …

Stocks May Be Expensive but Not Overvalued

By Pierre-Axel Gide September 5, 2017 by renholding

Publications like Bloomberg, The Financial Times, and The Wall Street Journal[1] have recently reported that current stock markets and especially those in the United States are more overvalued than ever. In an interview with the Financial Post[2]…

Oil Prices and the Global Economy: Is It Different This Time Around?

By Kamiar Mohaddes and M. Hashem Pesaran August 24, 2016 by renholding

The positive correlation between oil prices and equity markets over the past few years has been discussed extensively in the media as well as by prominent economists, such as Bernanke and Obstfeld, and has brought into question the generally …

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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
GOP Mum on Midterm Affordability
October 1, 2026
Reuters
M&A Deal Rush Fades in 3d Quarter
October 1, 2026
The Governance Beat
Tesla, Goldman Tout Retail Shareholder Voting Instruction Plans
October 1, 2026
Financial Times
Wachtell Hires Ex-SDNY U.S. Attorney
October 1, 2026
D&O Diary
New Caremark Decision Provides Good News About Bad Faith
October 1, 2026
Wall Street Journal
Walgreens Nears Sale of Britain’s Boots
September 30, 2026
The Governance Beat
BlackRock Issues 2026 Voting Report
September 30, 2026
Sidley Enhanced Scrutiny
Court: FCA’s Qui Tam Constitutional
September 30, 2026
D&O Diary
IPOs Up, SPAC Litigation Persists
September 30, 2026
Deal Lawyers.com
Delaware Supreme Court Backs Indemnity for Post-Closing Misconduct
September 30, 2026
Bloomberg
American, Alaska Air to Share Revenue
September 29, 2026
Wall Street Journal
Trump Defends Light-Touch AI Plan
September 29, 2026
Financial Times
Starbucks Cuts Green Goals, Costs
September 29, 2026
D&O Diary
Alphabet Board Hit with Privacy-Related Follow-On Derivative Suit
September 29, 2026
Deal Lawyers.com
Chancery Interprets “Change of Control” in Purchase Agreement
September 29, 2026
Bloomberg
IRS Threatens Crackdown on Array of Wall Street Tax Dodges
September 28, 2026
Dealbook
Safety Issues Could Derail AI IPOs
September 28, 2026
Financial Times
Weil in Crisis After Lawyer Departures
September 28, 2026
D&O Diary
Proxy Season 2026 Returns to Basics
September 28, 2026
Delaware Corporate & Commercial Litigation Blog
Chancery Explains Lawyer Fee Award
September 28, 2026
Bloomberg
Trump, Anthropic CEO to Meet
September 27, 2026
Wall Street Journal
NY Sues Prediction Market Polymarket
September 27, 2026
Dealbook
Clients Eye Cut of Law Firm AI Savings
September 27, 2026
Freshfields' A Fresh Take
Bank Agencies Offer Revamped Third-Party Risk Management Guidance
September 27, 2026
Financial Times
Companies Favor Cheaper “Open” AI
September 27, 2026
Wall Street Journal
MGM Resorts Eyes Diller’s People Inc.
September 24, 2026
Dealbook
AI Safety Concerns Go Global
September 24, 2026
Financial Times
PE Investment May Alter Lawyer Pay
September 24, 2026
Sidley Enhanced Scrutiny
Delaware Chancery Expands AI Focus from Individuals to Governance
September 24, 2026
Business Law Prof Blog
What AI Tells Us About Benefit Corps.
September 24, 2026
Bloomberg
Disney+ Price Jumps 13 Percent
September 23, 2026
Wall Street Journal
Meta’s New AI Agent Is Instant Hit
September 23, 2026
Securities Litigation & Enforcement
SEC, FDA Create Info-Sharing System
September 23, 2026
Financial Times
Private Equity Ending Up in Limbo
September 23, 2026
D&O Diary
AI-Related Securities Suits Surging
September 23, 2026
Wall Street Journal
Obamacare Enrollments Cut 760,000
September 22, 2026
Financial Times
Anthropic, OpenAI Offer Cheap Models
September 22, 2026
Cleary Securities Watch
SEC End to Pay-to-Play Rule May Not Pay Off for Investment Advisers
September 22, 2026
D&O Diary
Consumer Class Actions Claim Tariffs Wrongly Passed to Customers
September 22, 2026
Deal Lawyers.com
Delaware Chancery Addresses Earnout Provision’s “Procedural Checks”
September 22, 2026
Wall Street Journal
Polymarket’s Rush Enabled Fraud
September 21, 2026
Cooley M&A
Chancery Revives Verisk Deal
September 21, 2026
Financial Times
Settlement Clears Paramount-Warner
September 21, 2026
D&O Diary
Crypto Investors Suit Skirts Dismissal
September 21, 2026
Securities Regulation and Corporate Governance Monitor
SEC Plans to Nix Shareholder Proposal Rule, Change Proxy Solicitation
September 21, 2026
New York Times
Anthropic Goes Ahead With IPO Plans
September 20, 2026
Delaware Business Litigation Report
Chancery Nixes Caremark Action
September 20, 2026
Financial Times
How Big Tech Uses Guarantees to Keep AI Exposure Off Balance Sheet
September 20, 2026
Sidley Enhanced Scrutiny
When the Meeting Minutes and the AI Transcript Don’t Match
September 20, 2026
Corporate & Securities Law Blog
SEC Grants Review of Nasdaq Minimum Listed Securities Value Rule
September 20, 2026
Bloomberg
SEC to Interview Guggenheim Staff
September 17, 2026
Cleary M&A Watch
SEC Guides on Activist Fund Disclosure
September 17, 2026
Freshfields' A Fresh Take
California Enacts a Slew of AI Laws
September 17, 2026
Financial Times
Barclays Staff Slams Return-to-Work
September 17, 2026
Business Law Prof Blog
SEC 14a-8 Rescission Proposal Is Here
September 17, 2026
Cooley M&A
KKR to Pay $250mln for HSR Violation
September 16, 2026
Dealbook
Tech Hardware Is in Vogue Again
September 16, 2026
The Governance Beat
How Shareholder Proposals Fared Over Most Recent Proxy Season
September 16, 2026
Financial Times
Rifts Over Safety at Anthropic, OpenAI
September 16, 2026
Delaware Chancery Law Blog
Delaware Court Trims an Earnout Claim
September 16, 2026
Dealbook
AI Regulation Has Strange Bedfellows
September 15, 2026
D&O Diary
The CVS Case and the Emerging D&O Risks of AI-Driven Performance
September 15, 2026
Sidley Enhanced Scrutiny
Delaware Supreme Court Reverses on Justifiable Reliance in M&A Fraud Case
September 15, 2026
Delaware Business Litigation Report
Chancery Grants Spoliation Damages
September 15, 2026
The Guardian
Private Equity Facing Existential Crisis?
September 15, 2026
Wall Street Journal
Malls Are Real Estate’s Top Performer
September 14, 2026
Delaware Business Litigation Report
Chancery Rules in Mutual Deceit Case
September 14, 2026
The Governance Beat
12 Ways AI Affects Firm Disclosure
September 14, 2026
Financial Times
Warsh and Trump on Collision Course
September 14, 2026
D&O Diary
Eighth Circuit Nixes D&O Coverage of Execs’ Personal Loan Guarantees
September 14, 2026
Bloomberg
Anthropic’s AI Warning Is Too Weak
September 13, 2026
Dealbook
A Start-Up Pay Strategy Proves Costly
September 13, 2026
The Governance Beat
Glass Lewis Outlines New Framework
September 13, 2026
Financial Times
Musk, Altman Also Back AI Slowdown
September 13, 2026
D&O Diary
Turns Out FCA Qui Tam Constitutional
September 13, 2026
Wall Street Journal
Crypto Scam Victims Are Fighting the U.S. to Get Their Money Back
September 10, 2026
Delaware Business Litigation Report
Delaware Supreme Court Affirms Arbitration Order in Earnout Dispute
September 10, 2026
Financial Times
Tariff Criticism Dooms IMF Candidate
September 10, 2026
Sidley Enhanced Scrutiny
Chancery Confirms No Best-Price Duty for Public-Benefit Corp. Board
September 10, 2026
D&O Diary
Shareholders Suit Against Apple Follows AI-Linked Copyright Claim
September 10, 2026
Bloomberg
DOJ Says Berkeley Law Discriminates
September 9, 2026
D&O Diary
Is Bank Failure Uptick a Big Deal?
September 9, 2026
Deal Lawyers.com
Designated Directors Walk a Tightrope
September 9, 2026
Corporate & Securities Law Blog
SEC Remakes Transfer Agent Rules
September 9, 2026
Business Law Prof Blog
How IPOs Stack Up So Far in 2026
September 9, 2026
Wall Street Journal
Trump Says He Will Block Canadian Firms From Government Contracts
September 8, 2026
Freshfields' A Fresh Take
9th Circuit in Prediction Markets Split
September 8, 2026
Financial Times
LIV Golf Files for Bankruptcy
September 8, 2026
Cleary Securities Watch
SEC Updates CFI Guidance
September 8, 2026
Business Law Prof Blog
Reincorporations Can Be Costly
September 8, 2026
Financial Times
University Endowments Beat S&P 500
September 7, 2026
Sidley Enhanced Scrutiny
DGCL §144 Safe Harbor Rules Emerge
September 7, 2026
Delaware Corporate & Commercial Litigation Blog
Allegedly Excessive Fees No Defense to Nonpayment of Advance
September 7, 2026
Bloomberg
Delaware Practical Pluses Run Deep
September 7, 2026
Business Law Prof Blog
The Latest on Reincorporations
September 7, 2026
Wall Street Journal
Boeing’s $8.4bn Deal Bleeds Red Ink
September 3, 2026
Bloomberg
Nvidia to Buy Hugging Face for $13bn
September 3, 2026
Dealbook
Did Meta’s Settlement Actually Help It?
September 3, 2026
Financial Times
Black Sues Congress on Epstein Probe
September 3, 2026
Securities Regulation and Corporate Governance Monitor
SEC Proposes E-Delivery Disclosure
September 3, 2026
Bloomberg
Bigger SALT Break’s Impact Surprises
September 2, 2026
Dealbook
Music Industry Grapples With AI
September 2, 2026
Freshfields' A Fresh Take
Enforcers Target Prediction Markets
September 2, 2026
Securities Litigation & Enforcement
SEC Eyes Pre-IPO Share Sales
September 2, 2026
Financial Times
Chevron to Double Venezuela Oil Production With $7bn Pledge
September 2, 2026
Blog Roll Header
  • Business Law Prof Blog
  • Corporate & Securities Law Blog
  • DealLawyers
  • Delaware Corporate and Commercial Litigation Blog
  • Gibson Dunn Securities Regulation and Corporate Governance Monitor
  • Harvard Law School Forum on Corporate Governance
  • How Appealing
  • PubCo @ Cooley
  • Securities Docket
  • Sidley Enhanced Scrutiny Blog
  • The D&O Diary
  • Truth on the Market
  • White Collar Crime Prof Blog
The Blue Sky Blog is Sponsored by Columbia Law School's Center on Corporate Governance.
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