The Council of Institutional Investors (CII) has urged the US Securities and Exchange Commission (SEC) to reject a proposed Texas Stock Exchange (TXSE) voting rule, arguing it could distort proxy voting outcomes, undermine the principle of one-share, one-vote and create opportunities for abuse. The intervention adds fresh scrutiny to one of the most closely watched governance proposals currently before US regulators.

The proposal has become a test of how regulators balance efforts to increase shareholder participation against concerns over voting integrity and shareholder equality. With the SEC required to approve, reject or institute proceedings on the proposal by 9 September, the outcome could have implications beyond the TXSE.

CII opposes Texas Stock Exchange mirror voting proposal

In its letter to the SEC, the CII said it opposes the proposed amendments because they are "inconsistent with corporate governance best practices, could distort proxy voting results, and could result in proxy voting abuses." The organisation identified three principal concerns: compatibility with the one-share, one-vote principle, the potential to distort voting outcomes and the risk of misuse by market participants.

The proposal would require exchange members to vote uninstructed shares held on behalf of beneficial owners in TXSE-listed companies. Under the system, brokers would allocate votes proportionally based on the instructions they receive from shareholders who actively participate in the vote.

On the surface, the mechanism is straightforward. If 60% of instructed shares support a proposal, 30% oppose it and 10% abstain, the same proportions would be applied to uninstructed shares held by the broker. In practice, however, the approach could significantly increase the influence of shareholders who choose to vote, particularly when overall participation levels are low.

As Minerva discussed earlier this month, the proposal could have implications not only for governance outcomes but also for the balance of influence between shareholders, company management and proxy advisers. Minerva Analytics is a non-voting service provider member of CII.

Dual-class companies in focus

A central concern raised by the CII is the proposal's compatibility with the one-share, one-vote principle, a longstanding pillar of the organisation's governance policy and one which Minerva agrees with. The council argues that mirror voting would effectively magnify the influence of shareholders who participate in voting by extending their preferences to shares whose owners have not provided voting instructions.

The issue may be particularly significant for companies with dual-class share structures (DCSS), where voting power is already unevenly distributed. The CII cited concerns previously highlighted by Minerva that proportional allocation of uninstructed shares could reinforce existing control arrangements by increasing the influence of dominant voting blocs. This could make it harder for minority investors to affect outcomes despite holding meaningful economic interests in a company.

DCSS typically grant founders, executives or other select shareholders enhanced voting rights. Such arrangements can already limit accountability by concentrating control, making any mechanism that further amplifies voting influence particularly significant from a governance perspective, as discussed by a Minerva briefing and webinar.

The debate is especially relevant given the TXSE's ambition to attract companies seeking to IPO or shift their listing to Texas, including issuers that may favour DCSS. ExxonMobil's recent redomiciliation has highlighted the broader effort to position Texas as an alternative corporate and listing venue.

Could mirror voting distort shareholder voting outcomes?‍

The CII also warned that the proposal could distort voting outcomes by assigning votes to shares whose owners have not actively participated in the decision. According to the organisation, this risks allowing a relatively small group of voting shareholders to determine how large numbers of uninstructed shares are cast, potentially influencing whether resolutions pass or fail.

The council further argued that the proposal could create opportunities for strategic behaviour. Its letter highlighted concerns that insiders, hedge funds or other investors could potentially move shares into broker accounts and benefit from mirror-voting arrangements to expand their influence over voting outcomes.

The proposal also sits against a broader political backdrop. While mirror voting could theoretically increase the influence of active investors and potentially strengthen the impact of voting recommendations, Texas policymakers have repeatedly challenged the role of proxy advisers and shareholder activism through legislative and regulatory initiatives. Any perceived shift in influence toward these groups could therefore attract additional scrutiny.

What happens next as the SEC reviews the TXSE voting rule?

The CII's intervention raises the stakes in an increasingly prominent governance debate. The SEC's decision will determine whether the TXSE can proceed with a voting model that supporters argue could increase participation, but which critics believe risks amplifying the influence of already active voting blocs.

For investors, the outcome will be closely watched not only for its implications for TXSE-listed companies, but also for what it signals about the future direction of shareholder voting rights, market structure and corporate governance in the United States.