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Market Information

Trading Calendar

Trading Hours

Pre-Opening Session: 2:30 a.m.

  • Limit orders can be entered and will be queued until the Limit Order Auction at 4 a.m. ET

Opening Session: 4:00 a.m. to 9:30 a.m. ET

  • 3:59 a.m. to 4:00 a.m. ET - Opening Auction Freeze Period
  • 4:00 a.m. ET - Opening Auction
  • 9:29 a.m. to 9:30 a.m. ET - Market Order Freeze Period
  • 9:30 a.m. ET - Market Order Auction

Orders that are eligible for the Opening Auction may not be cancelled one minute prior to the Opening Session until the conclusion of the Opening Auction.

Market Orders and Auction-Only Limit Orders may not be canceled. Market Orders and Auction-Only Limit. Orders may not be entered on the same side as an imbalance.

Core Trading Session: 9:30 a.m. to 4:00 p.m. ET

  • 3:59 p.m. to 4:00 p.m. ET - Closing Auction Freeze Period
  • 4:00 p.m. ET - Closing Auction Run and Closing Price Disseminated. All Day Orders entered for the core session will be canceled.

Market-on-Close (MOC) and Limit-on-Close (LOC) orders cannot be canceled. MOC and LOC orders may not be entered on the same side as an imbalance.

Extended Hours: 4:00 p.m. to 8:00 p.m. ET

  • 8:00 p.m. ET - Limit Orders entered after 4:00 p.m. ET are canceled.
  • 8:01 p.m. ET - Portfolio Crossing System (PCS) Cross Orders are executed at the conclusion of extended trading hours.


View Holidays and Holiday Hours

Market Making

The all-electronic NYSE Arca relies on a system of competing Market Makers to provide a fast, efficient, and consistent marketplace for all participants, including liquidity providers. Market Makers are required to maintain adequate minimum capital and continuous, two-sided identified and displayed quotes for all registered securities during Core Trading Hours (9:30 a.m. to 4:00 p.m. ET). They also clear and settle transactions through a registered clearing agency.

NYSE Arca appoints Lead Market Makers (LMMs) for ETPs (Exchange Traded Products) with a primary listing on the exchange to meet defined obligations in exchange for incentives such as lower transaction fees.

NYSE Arca Product Brief: Lead Market Making

NYSE Application to Become a Lead Market Maker in a Particular NYSE Arca Primary Listed Security*

*Must be an existing Lead Market Maker ETP in order to submit this application for a green sheet posting

Market Maker Capital Requirements

Market Makers subject to the Aggregate Indebtedness Requirement maintain minimum net capital that is the greater of:

  • $100,000
  • $2,500 for each security that it is registered as a Market Maker (unless a security in which it makes a market has a market value of $5 or less, in which event the amount of net capital shall be not less than $1,000 for each such security) based on the average number of securities that such Market Maker is registered during the 30 days immediately preceding the computation date
  • 6 2/3 percent of aggregate indebtedness
  • The amount prescribed by SEC Rule 15c3-1

Market Makers subject to the Alternative Net Capital Requirement must maintain minimum net capital that is greater than:

  1. $250,000 or
  2. 2 percent of aggregate indebtedness
  3. the amount prescribed by SEC Rule 15c3-1

Become a NYSE Arca Market Maker

Eligible traders can apply in writing to register as Market Maker Authorized Traders (MMAT). Market Makers must meet rigorous education, training, and testing requirements to obtain NYSE Arca Equity Trading Permits (ETP), register in a given security, and remain in good standing with NYSE Arca thereafter to perform market-making activities.

Application for Market Maker Registration


NYSE Arca Market Maker Orientation

The Market Maker Orientation is an introduction to NYSE Arca Market Maker access, obligations, requirements and order types. Please review and certify that you have completed and understand the policies and procedures set forth in the Market Maker Orientation by signing the last page of the PowerPoint and returning it to Client Relationship Services.

NYSE Arca will review this document upon receipt, and Market Maker Registration becomes effective when the applicant receives approval notice from the NYSE Arca.


FIX and Binary Specification for all Equities Markets

NYSE Pillar FIX Gateway Specification
NYSE Pillar Binary Gateway Specification

Production Connectivity

If you already have a SFTI or a third-party extranet line and have certified your FIX/Binary application, you can request creation, modification or removal of Production Sessions by contacting our Production Support Group at the email link or phone number below. The Production Support group facilitates all production connectivity and provides support for all production sessions.


Once a trade has been executed, trade details are transmitted to the Depository Trust and Clearing Corporation (DTCC®) / National Securities Clearing Corporation (NSCC®) for clearance and settlement via their Universal Trade Capture (UTC) processing stream. All trading transactions are transmitted to DTCC / NSCC electronically in real time matching the details of the trades from both the buyer and the seller into one deal record. These transactions are considered "locked in" executions.

Clearing firms must become NYSE Arca Equity Trading Permit (ETP) holders to obtain direct access to NYSE Arca and clear trades on behalf of exchange participants and be setup to participate on the NYSE Arca RIO. Firms that are not self-clearing must have their NYSE Arca clearing firm provide a Clearing Letter of Consent to the CRS / Membership acknowledging and accepting the financial responsibility for all of their correspondent’s transactions. To direct orders to NYSE Arca, clearing firms must complete additional membership agreements.