Advanced technology. Unmatched speed.

Introducing Dedicated OUCH*

NASDAQ OMX is pleased to announce our latest innovative connectivity service providing customers with their own dedicated OUCH server in the NASDAQ OMX Data Center. In addition to the efficiency and high level of performance OUCH customers experience today, this unique offering provides a dedicated environment for customers' logical ports. With Dedicated OUCH, firms can develop a tailored trading solution for their firm by utilizing ports as they see fit across a server. Controlling ports and message traffic gives firms the ability to shift connectivity to optimize their trading strategies.

NASDAQ OMX has launched the first phase of Dedicated OUCH with each server housing up to 30 ports. Firms can migrate existing OUCH ports and/or order new OUCH ports to subscribe to this service; however, a migration of an existing port will require a new port and IP address. Due to the customized nature of this new offering, availability will be limited upon launch and firms will be allowed a maximum of two servers to ensure fair access to the limited offering. Additional phases will be launched based on customer demand.

Complete the Dedicated OUCH Request Form to order your servers. For more information, please contact NASDAQ OMX Market Sales at +1 800 846 0477 or Andrea Moran at +1 212-231-5162.

*Note 2013 Dedicated OUCH is currently only available on The NASDAQ Stock Market.


OUCH provides customers with a fast and highly efficient way to connect to NASDAQ and NASDAQ OMX BX. This protocol allows subscribers to quickly enter orders into and receive executions. OUCH was developed with simplicity in mind — subscribers and their software developers can integrate NASDAQ into their proprietary trading systems or build custom front-ends to NASDAQ systems.

OUCH accepts limit orders from system subscribers, and if there is a matching order, they will execute. Non-matching orders are added to the Limit Order Book, a database of available limit orders, where they are matched in price-time priority. OUCH only provides a method for subscribers to send orders and receive status updates on those orders.

Supported Versions
4.2, 4.1, 3.3, 3.2

Benefits & Features

  • Efficiency and low-latency
  • High level of performance
  • Ease of use
  • Delivery of real-time execution information (DROP)

Who Can Participate

All NASDAQ market participants, including market makers, order-entry firms and ECNs can participate.

How to Subscribe

NASDAQ market participants can subscribe for new connectivity or update an existing service: by completing a port request form and faxing it to NASDAQ Subscriber Services at +1 212 231 5426.


Subscribers can access NASDAQ directly or through the use of a third-party extranet or front-end provider:


Technical Support

Contact Information