NYSE Arca Launches Overnight Trading Hours
Published Date: 5/27/2026
Notice
Summary
NYSE Arca is shaking up its trading hours by adding a brand-new Overnight Trading Session and tweaking the start and end times of its Early and Late Trading Sessions. This means traders get more chances to buy and sell stocks outside regular hours, making the market more flexible and lively. These changes kicked in right away on May 12, 2026, giving everyone more time to trade and potentially more opportunities to make money.
Analyzed Economic Effects
7 provisions identified: 4 benefits, 1 costs, 2 mixed.
NYSE Arca adds Overnight trading hours
The Exchange proposes a new Overnight Trading Session that will begin at 9:00 p.m. Eastern Time Sunday through Thursday and run through the next session, with the Exchange operating from 9:00 p.m. ET Sunday to 8:00 p.m. ET Friday. Trading will pause for one hour from 8:00 p.m. ET to 9:00 p.m. ET Monday through Thursday for technical refreshes, and the Exchange will begin accepting orders for the trading day at 8:59 p.m. ET before the Overnight session starts.
Which order types work Overnight
The Exchange specifies which order types are permitted or rejected in the Overnight Trading Session: Market Orders and Pegged Orders are not eligible and will be rejected if designated for the Overnight session; Limit IOC orders are permitted if designated for Overnight; MOO, MOC, LOC, Primary Only, and Directed Orders designated for the Overnight session will be rejected; certain non-displayed and other order types entered before the Overnight session will be rejected.
Limit order price protection extended
Limit Order Price Protection, which applied to the Early and Late Trading Sessions, will also apply during the new Overnight Trading Session.
Firms can block overnight executions
The Exchange will offer Entering Firms a pre-trade risk control to prohibit orders from executing during the Overnight Trading Session, and it proposes to allow Clearing Firms designated by Entering Firms to likewise prohibit orders from executing during the Overnight Trading Session via an amendment to Rule 7.19-E(c)(1).
Clearly erroneous reviews apply Overnight
The Exchange amends Rule 7.10-E to make clearly erroneous transaction reviews available for trades occurring during the Overnight Trading Session on the same basis as they are for the Early and Late Trading Sessions.
Holiday schedule clarified for Overnight sessions
If the Exchange is closed for a holiday between Monday and Friday, the Exchange will conclude its Late Trading Session the evening before the holiday and will commence the next Overnight Trading Session at 9:00 p.m. Eastern Time on the evening of the holiday.
Launch timing aligned to industry (Dec 6, 2026)
The Exchange proposes to replace the preamble's "within 18 months" deadline with "24 months," and states it expects to align with the industry's projected readiness date for Extended Hours Trading of December 6, 2026.
Personalized for You
How does this regulation affect your finances?
Personalize government policy and PRIA will tell you what this federal register document means for your household, plus every other regulation we track. PRIA reads each provision against your financial profile to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-17183, Regulation Crypto Assets
The Securities and Exchange Commission ("Commission") is proposing new rules to create a tailored offering regime for certain investment contracts involving crypto assets. The proposed offering regime is intended to facilitate capital formation and accommodate innovation within the crypto asset markets while, at the same time, ensuring that investors are adequately protected and provided with the information they need to make informed investment decisions. The proposed rules would be set forth in a new regulation titled "Regulation Crypto Assets" and would include two exemptions from the registration requirements of section 5 of the Securities Act of 1933. The first exemption would permit offerings of up to $5 million during a four-year period. The second exemption would permit offerings of up to $75 million during each 12-month period. Under both exemptions, issuers would be required to make certain principles-based narrative disclosures available to their investors. In addition, issuers under the second exemption would be required to provide financial statements and would be subject to ongoing reporting requirements. Issuers that rely on these exemptions would remain subject to the antifraud and antimanipulation provisions of the Federal securities laws. The proposed rules also would include a conditional safe harbor from the term "investment contract" in the definitions of "security" in the Securities Act of 1933 and the Securities Exchange Act of 1934. If the conditions of that proposed safe harbor are satisfied, then a crypto asset would be deemed not to be subject to an investment contract for purposes of those definitions of "security."
2026-12163, The Trade-Through Rule and Locked and Crossed Markets Provisions of Regulation NMS
The SEC wants to scrap some old rules that stop stocks from being traded at worse prices and prevent confusing market quotes. This change affects stock traders and exchanges, aiming to simplify trading and possibly speed things up. If you want to share your thoughts, you’ve got until August 17, 2026, so don’t miss out!
2026-10373, Registered Offering Reform
The SEC wants to make it easier and cheaper for more companies to sell their stocks and bonds to the public. They’re opening up special forms and benefits to more businesses, updating rules to be more modern, and cutting red tape by overriding some state rules. If you’re a company planning to raise money, these changes could speed things up and save you money, with feedback due by July 27, 2026.
2026-10222, Enhancement of Emerging Growth Company Accommodations and Simplification of Filer Status for Reporting Companies
The SEC is making it easier for companies that report their finances by simplifying their categories into just two groups: big and small filers. Smaller companies, including emerging growth ones, will get more time to file reports and enjoy simpler rules, while big companies keep stricter standards. These changes aim to save time and money, with feedback open until July 20, 2026.
2026-07651, Concept Release on Consolidated Audit Trail and Other Audit Trails and Data Sources
The SEC wants your thoughts on how it tracks stock market trades using the Consolidated Audit Trail and other data tools. They’re thinking about updating rules to keep up with new tech, privacy, and security needs, and to make sure the system is fair and cost-effective. If you’re involved in the stock market or data tracking, speak up by June 22, 2026!
2026-05635, Application of the Federal Securities Laws to Certain Types of Crypto Assets and Certain Transactions Involving Crypto Assets
Starting March 23, 2026, the SEC and CFTC are making it clear that some crypto assets and transactions must follow federal securities laws. This means crypto companies and investors need to play by new rules to keep things fair and safe. Expect more transparency and possible costs for compliance as the government steps up oversight in the crypto world.
Previous / Next Documents
Previous: 2026-10449, Self-Regulatory Organizations; Cboe EDGX Exchange, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Amend Its Fee Schedule by Introducing a New RPI Add Tier and Amending Its Fee Code Table Applicable to Securities Priced Below $1.00
Cboe EDGX Exchange is updating its fee schedule starting May 1, 2026, by adding a new RPI Add Tier and changing fees for stocks priced under $1. This affects traders dealing with low-priced stocks and could change how much they pay or earn in fees. The goal? Make trading fairer and clearer for everyone involved.
Next: 2026-10451, Self-Regulatory Organizations; ICE Clear Credit LLC; Notice of Filing of Proposed Rule Change Relating to the Clearance of Additional Credit Default Swap Contracts
ICE Clear Credit is planning to start clearing more credit default swap contracts, especially for some emerging market and Asia/Pacific countries. This change affects traders and investors who use these contracts to manage risk. The new rules could kick in soon, making it easier and safer to trade these financial products.