Oklahoma's law regulating proxy advisory firms is scheduled to take effect November 1, and Institutional Shareholder Services is asking a federal court in the Western District of Oklahoma to block it before then. The law, House Bill 4429, requires proxy advisers to disclose to their Oklahoma clients whether any recommendation against a corporate management proposal is based on written financial analysis. It says nothing about recommendations that support management. That asymmetry is the entire lawsuit, and ISS laid out its own position in its filing statement, confident it will win because the same asymmetry has already lost in three federal courts, in three states, on essentially the same theory.
The Oklahoma statute was signed by Governor Kevin Stitt in May. Its stated rationale is that proxy advisers have recommended votes based on ESG, DEI, and what the bill calls social credit and sustainability scores, without conducting financial analyses. Under the law, failing to produce the written financial analysis for an against-management recommendation would constitute a deceptive trade practice, exposing the adviser to investigation by the state attorney general, civil fines of $10,000 per violation, and suits by aggrieved parties. ISS says the compliance burden attaches only to advice that opposes management, never to advice that supports it, which is the structural feature that gets these laws into constitutional trouble.
The First Amendment argument in one paragraph
ISS frames the challenge around compelled speech. The firm's position is that many shareholder votes do not lend themselves to financial prediction, its clearest example being whether to reelect a board member who missed meetings, and that forcing a written financial analysis of such questions would force ISS to take positions on contested matters that it would not otherwise take. The state, in this framing, is using its deceptive-trade law to make one category of speech more expensive and riskier than the opposite category, with criminal exposure attached. The First Amendment doctrine on compelled and burdened speech does not require the challenger to prove the state's motive; it requires the state to justify a content-based asymmetry in the regulation of speech, and a law that burdens only recommendations against management is content-based on its face.
The state's likely response is that the law regulates a commercial service, not speech, and that requiring a basis for advice protects consumers. That argument has been made before. In Kansas, Indiana, and Texas, federal courts granted preliminary injunctions against materially identical laws over the past year, each time accepting the core proposition that selectively burdening one direction of proxy advice violates the First Amendment. ISS noted the pattern in its filing and said it strongly believes a similar result is warranted in Oklahoma.
Where the law came from
The Oklahoma bill is not homegrown. It is modeled on a Texas law passed in 2025, which is itself based on model legislation from Consumers Defense, the policy arm of the conservative nonprofit Consumers' Research. The model has traveled fast: at least thirteen states have introduced versions of the bill, and Oklahoma, Kansas, and Indiana have passed it, a pattern The Journal Record and The Corporate Counsel blog have both tracked. All three of the passed versions are now either blocked by injunction or under challenge, which makes the Oklahoma case the fourth test of the same text in federal court, and the pattern of results so far is unbroken against the states.
The campaign sits inside a larger squeeze on the two firms, ISS and Glass Lewis, that control roughly 90 percent of the proxy advisory industry. In May 2026, the Texas attorney general sued ISS alleging it deceptively prioritized undisclosed ESG factors over objective financial analysis, with similar state lawsuits following in Nebraska, Iowa, and West Virginia. Separately, the Securities and Exchange Commission is pursuing a federal court order compelling ISS to produce four years of client-level voting data, a fight ISS is contesting on First Amendment and client-confidentiality grounds. The Oklahoma case is one front of a coordinated effort that has now reached the courts in six states and two federal agencies.
The difference between the fronts matters. The SEC records fight is about what the adviser must hand over. The Texas-style fraud suits are about what the adviser allegedly said. The Oklahoma law is about what the adviser must say going forward, which is why it is the front with the clearest doctrinal path to resolution: compelled speech doctrine is older and more settled than either of the other two fights.
What happens next
The immediate question is the preliminary injunction. ISS asked for one before the November 1 effective date, and if the court follows Kansas, Indiana, and Texas, the law will be stayed while the merits are litigated. The longer-term question is whether the model survives anywhere. The states keep writing the same bill with the same asymmetry, and the courts keep blocking it for the same reasons, which suggests the campaign is less interested in a functioning statute than in the signal the litigation sends to the firms, and to the investors who pay them.
For the firms, the cost is not primarily legal. It is the chill. Every additional state that passes the bill adds a new jurisdiction where a routine vote recommendation could become a deceptive-trade investigation, and even injunctions take months to obtain. The compliance teams at ISS and Glass Lewis now operate with a permanent overlay of state-by-state legal risk, which is itself a form of burden the injunction only partially removes.
The deeper contest is over what proxy advice is. The states' position is that a vote recommendation is a financial product that must rest on financial analysis. The firms' position is that a vote recommendation is speech about corporate governance, and that shareholders are entitled to advice that says a director should go for reasons a spreadsheet cannot capture. The courts have so far agreed with the firms, in three states, in unbroken succession. Oklahoma is now the fourth test of the same question, and the answer is probably already written.
The clients the law claims to protect
The statute's stated beneficiary is the Oklahoma investor who relies on proxy advice without knowing whether it rests on financial analysis. The reality behind that framing is that proxy advice in Oklahoma is delivered overwhelmingly by the two firms the law targets, ISS and Glass Lewis, which together control roughly 90 percent of the industry, and the state's own public pension funds are among their clients. A law that makes against-management advice riskier for the adviser makes the state's own pension system's adviser more cautious, which is an unusual way to protect the investor.
The deeper question the Oklahoma case raises is what a written financial analysis of a governance vote would even be. A recommendation to vote against a compensation plan can rest on dilution arithmetic; a recommendation to vote against a director for weak risk oversight cannot rest on a spreadsheet at all, because the oversight failure is a judgment about behavior, not a projection of cash flows. The law's own example cases, votes on ESG and social scores, sit on the same boundary: a shareholder who votes against a board because the board's climate disclosures are inadequate is not making a claim about next quarter's earnings. The law would require such votes to be dressed in financial costume or not made at all, and ISS's First Amendment argument is precisely that the costume requirement changes the speech.
The practical consequence of the litigation, whatever the outcome, is already visible in the market for proxy advice. The firms now write recommendations with an eye to a growing stack of state statutes, each with slightly different disclosure requirements, and the compliance cost lands on every client, including the small investors the laws claim to serve. The three injunctions have kept the statutes from biting, but the chilling effect of an unresolved statute is a real cost, and it is the cost the campaign's architects most plausibly intended.
The Oklahoma hearing will not decide the future of proxy advice, but it will set the tone for the remaining states considering the same bill. Every legislator weighing the model legislation is watching one question: whether the fourth court to see the same statute repeats the pattern or breaks it. Three courts have now answered, and the answer has been the same each time, for the same reasons. The model has a design flaw, and the flaw is the asymmetry. Oklahoma is about to learn whether its version hides it well enough to matter, and the rest of the states are taking notes either way.
Primary sources
- ISS press release announcing the Oklahoma lawsuit and its First Amendment position.
- The Journal Record for the filing and the law's November 1 effective date.
- The Corporate Counsel blog for the pattern of preliminary injunctions in Kansas, Indiana, and Texas.
- Yahoo Finance AU syndication of the SEC's court filing against ISS for the parallel records fight.