What Is SEC Form 10-S and Where Does the Proposal Stand?

The SEC's semiannual reporting plan is a proposal, not a rule. The Commission proposed on May 5, 2026 that public companies could choose to file one semiannual report on a new Form 10-S instead of three quarterly Form 10-Q reports, and as of October 6, 2026 the SEC's rulemaking page still lists it as a proposed rule with no final release. If it were adopted, nothing would change automatically for any stock: each company would have to opt in, and quarterly reporting would remain the default for everyone who did not.

What exactly has the SEC proposed?

The SEC's proposing release 33-11414 would let a reporting company file a semiannual report on Form 10-S in lieu of Form 10-Q. Today a company files three 10-Qs a year and covers the fourth quarter inside its annual Form 10-K. Under the proposal, a company that opted in would file one Form 10-S for the first six months of its fiscal year, and the second half would again be covered by the 10-K.

Form 10-S would carry the same narrative disclosures and financial information as a 10-Q, only for a six-month period. The financial statements would follow U.S. GAAP and would need an auditor's interim review but not a full audit, and the certifications and disclosure-controls requirements would stay. The filing deadline would match today's 10-Q rule: 40 days after the period ends for large accelerated and accelerated filers, and 45 days for everyone else. The release also proposes related changes to Regulation S-X, mainly about how old a company's financial statements can be in a registration statement.

SEC Chairman Atkins described the idea in his statement on the proposal as giving companies the option of one semiannual report, and said that if ultimately adopted it would provide companies with more regulatory flexibility. He framed it as the first step in a broader review of the rules for public companies. Nothing in the proposal would force any company to switch.

Where does the proposal stand as of October 2026?

As of October 6, 2026, the proposal has not been adopted. The SEC issued the proposal on May 5, 2026, and it was published in the Federal Register on May 7. Public comments were due on July 6, 2026. The SEC's page for file S7-2026-15 lists the rule type as "Proposed" and notes, in an update dated July 31, 2026, that a large number of comments had been received and were being posted. It shows no final rule, no vote to adopt, and no reopened comment period.

A proposed rule is a draft that the Commission asked the public to react to. It does not bind any company today, and the final text could differ from what was proposed, or the SEC could decide not to adopt it at all. Until a final release appears, every company that files Form 10-Q today continues to do so under the current rules, and the existing quarterly filing calendar still applies.

The release itself does not give an effective date. It asks commenters whether there should be a compliance date and whether companies would need a transition period, which means those questions were open when the proposal was published. Anything you read that names a specific adoption month is someone's estimate, not an SEC schedule.

How would a company choose semiannual reporting?

A company would make the choice by ticking a box on the cover page of its annual report. The proposal would add a check box to Form 10-K as the sole way to say whether the company is selecting semiannual reporting, and a box left unchecked would mean quarterly reporting. Companies that have not yet filed Exchange Act reports, such as those preparing an initial public offering, would get a similar box on registration forms like S-1.

The election would be made once a year and could only change with the next 10-K, not in the middle of a year. The release also notes that a company wanting to stay on a semiannual schedule would need to check the box every year, because an unmarked box defaults back to quarterly reporting for the following fiscal year.

Take ABC Corp., a calendar-year company that files 10-Qs today. The release walks through this timing for an unnamed calendar-year company as an illustration, and it is not a forecast about any company. If the rule were adopted and ABC ticked the semiannual box on its Form 10-K for fiscal 2026, filed in March 2027, it would file its first Form 10-S in August 2027 for the six months ended June 30, 2027, rather than 10-Qs for the first and third quarters. For an interim period ending June 30, the deadline would be August 10 for a large accelerated or accelerated filer and August 14 for any other company. If ABC left the box blank, it would keep filing three 10-Qs a year as it does now.

What would not change if the SEC adopts it?

The proposal would not overhaul Form 8-K, which companies use to report material events between periodic filings, and the release treats Regulation FD and the antifraud provisions as continuing to apply, so a company would still have to disclose material information fairly and could not mislead the market. Foreign private issuers, asset-backed issuers, and registered investment companies are already excluded from Form 10-Q, so the quarterly-to-semiannual choice is aimed at other reporting companies.

Earnings releases are the place where the proposal gets more nuanced. Form 8-K Item 2.02, the item that covers results of operations, would get only technical amendments referencing semiannual periods, and the SEC asked in its requests for comment whether it should treat Item 2.02 differently for companies on a semiannual schedule. The release acknowledges that if a company moved to semiannual reporting and stopped issuing quarterly earnings releases and holding earnings calls, the disclosures Item 2.02 produces would not be available. At the same time, it says the choice would depend on each company's own facts and circumstances, and Chairman Atkins' statement says the frequency of earnings releases and calls would remain determined solely by the company. In other words, the proposal would change the required filing, and would not by itself end quarterly earnings announcements.

What could it mean for people who trade earnings?

If the rule were adopted, the practical effect for a trader would depend on which companies chose to switch, and that is not something the proposal can answer. The SEC's own economic analysis offers one conditional point: less frequent periodic disclosure may increase what it calls "jump" volatility, because prices could update by larger amounts when new information arrives less often, and that in turn may reduce liquidity. Those are the SEC's words about a possible effect, and the release does not quantify it for any stock.

The release also points to the United Kingdom, where mandatory quarterly reporting was dropped in 2014. A study it cites found that fewer than 10% of UK companies stopped issuing quarterly reports by the end of 2015, and the SEC says foreign experience may be broadly illustrative. It is a reference point from the SEC's own document, not a prediction for the U.S. market.

Alexander Styopin's professional view: the headline that quarterly earnings are going away overstates what is on the table. What is on the table is a choice that each company would announce on the cover of its 10-K, and traders would likely track it company by company, the way they track fiscal-year ends today. If some companies did move to two reports a year, the sharper moves would show up around the remaining reports, and the risk lessons would be familiar ones. Stops can fill well below their trigger when a stock gaps, as hi2morrow's guide to why a stop-loss can fill below your stop after a gap explains, and quoted spreads tend to widen around big news, which is covered in hi2morrow's guide to why the bid-ask spread suddenly widens. Neither mechanism would be new. The only open question would be how often a given stock faces them.

What do we still not know?

Several things are still unknown. The SEC has not published a vote date or a final rule, so it is unclear whether the Commission will adopt the proposal as written, change it, or leave it. The release gives no compliance date, so the first year in which a company could actually elect semiannual reporting is not set. No one can say yet which companies would opt in, since the check box would only appear on filings made after any final rule took effect. And the release does not decide whether companies that switched would keep issuing quarterly earnings releases, which it leaves to each company.

For a trader, the practical step today is the plain one. Keep using the earnings dates that companies announce, and check the SEC's page for S7-2026-15 if you want to know whether the status has changed. If a final rule appears, the details above, including the deadlines and the check-box mechanics, could change with it.

Educational material only. Not investment or legal advice. The proposal could change before any final rule, and filing requirements can vary by company.

Author: Alexander Styopin, hi2morrow analyst and economist with 25 years of experience in the US stock market