GX2 Spread Markets’ ExMode allows traders to build and execute cross-venue, multi-product spread strategies at their exact spread limit level, always in balance, and without legging risk. We aim to improve the spread markets by aggregating a majority of the Treasury Market’s liquidity into our STAR Aggregator. GX2 then decimalizes the underlying legs of a customized spread order and streams continuous, actionable markets. GX2 provides increased market efficiencies to our clients by guaranteeing the certainty of spread execution. The electronic format brings full transparency and allows the trader to gain control of the trade execution cycle.

STAR Aggregation

GX2’s STAR (Smart Trade Aggregation and Routing) allows clients to:


  • Interact with a majority of the Treasury market’s liquidity across Primary Dealers, Principal Trading Firms, Inter-Dealer Brokers and new bilateral platforms within a single limit order book.
  • Submit orders with a single click either passively or actively.
  • Trade through depth at multiple prices and multiple venues with a single click.

Spread Execution

ExMode Spread Execution Algorithms remove all legging risk from the trader and allows that trader to:


  • Design cross-venue, multi-product spread trades with a friendly and flexible user interface.
  • Monitor actionable spread markets for custom strategies.
  • Execute trades precisely at their spread limit, always in balance, and never legged.


GX2’s RTPL provides traders with the ability to monitor their fills and net position on the day as well as:


  • Retrieve all trading activity both intra-day and historically.
  • Create firm reports that can group multiple traders into a single view.
  • Export this data via a CSV file to easily feed other systems and reports.

FIX DropCopy

GX2 Spread Markets believes strongly in creating tailored Straight-Through-Processing (STP) solutions by:

  • Supplying a standard FIX 4.4 Drop Copy.
  • Offering streaming fills in excel as a light solution for STP to proprietary risk systems.
  • Working with third party vendors to develop solutions that work best for our clients.




Our marketplace provides clients with access to the aggregated liquidity combining Primary Dealers, Inter-Dealer Brokers, Principal Trading Firms, bilateral platforms and exchanges.


  • BrokerTec
  • Nasdaq Fixed Income
  • Dealerweb
  • Dealerweb Active Streams
  • Fenics US Treasuries
  • Credit Suisse
  • Goldman Sachs
  • J.P. Morgan
  • MarketAxess


  • CME Group
  • Eurex
  • ICE
  • Euronext



GX2 Spread Markets provides access to following products:

Fixed Income:

  • 2Y, 3Y, 5Y, 7Y, 10Y, 20Y, 30Y
  • ZT, Z3N, ZF, ZN, TN, ZB, UB, TWE
  • GE (white – blue), 2Y-30Y Interest Rate Swap Future (CBOT)

Currency and Commodity:

  • Aussie Dollar, British Pound, Canadian Dollar, Euro, Yen, CL, HO

Equity Indices:

  • ES, EMD, YM, Russell, E-Mini S&P 500, EuroSTOXX, DAX, CAC


Our Marketplace provides server-based, colocated execution performance at these locations. GX2 can be accessed over the internet or via cross connect at CH1.


  • CH1 350 Cermak, Chicago, IL
  • DC3 CME Data Center, Aurora, IL
  • NASDAQ eSpeed, Carteret, NJ
  • NY4 Secaucus, NJ
  • FR2 Frankfurt, Germany
  • Basildon, UK


GX2 Spread Markets is a regulatory solution for the Marketplace as we ease the burden of increasing Dodd-Frank compliance requirements. Our platform helps clients in this capacity by providing a daily audit trail of all spread and outright order activity within GX2SM, inventory management and wash sale mitigation, robust risk controls, and a dramatic reduction in order messaging and order-to-trade ratios. GX2SM maintains the responsibility for recording audit trails for all futures exchanges, including the CME, which are available through GX2 Spread Markets.




For more information on trading through GX2, please call 312-471-6300 or send an email to jenn@gx2spreadmarkets.com


There are currently no monthly reoccurring fees to access the platform. There are no additional mark-ups for spread trading; spreads are cleared net at the price on the screen.
GX2 Spread Markets is principal to all trades whether executed as a spread strategy or on an outright basis.
You will not pay EFP charges when trading on GX2SM. GX2SM does not typically use EFP’s to execute futures. We dramatically reduce fees by giving up futures trades executed in the central limit order book of the exchange. These trades are given up electronically to a customer’s clearing broker. An 11 cent per contract give up fee will be charged to cover fees at the futures exchange.
GX2SM will be available in the most volatile markets. In fact, we believe the system performs best and delivers the most value to our customers in this type of market dynamic. We’ve had traders successfully execute strategies on the most volatile market days, such as BREXIT, without any legging risk.
GX2 does not limit the number of legs included in a strategy. In theory, you can execute as many as your strategy includes. In practice, we have seen 18 legs execute successfully.
GX2 Spread Markets will continue to post price levels, but will reduce bid/offer sizes to zero on our screens approximately a minute prior to and 30 seconds after a known economic release.



GX2 Spread Markets is focused on providing the most efficient method of spread execution services in global electronic markets. GX2’s unique offering of an aggregated Treasury market place and spread execution free of leg risk in electronically traded markets is the cornerstone of our operation and offers countless avenues for continued evolutions. Our Smart Trade Aggregation and Routing System aggregates the world’s deepest, most tightly priced treasury markets.Our current flagship offering is a fully hosted execution platform for outright Treasury trading as well as for customized spreads of multiproduct and relative relationships. User’s strategies may consist of cross-exchange, cross-asset class products. Orders are executed precisely at the limit price of the spread level, always in balance and free from any legging risk. GX2 Spread Markets bundles the execution techniques used by the best High Frequency Trading (HFT) firms into our platform, eliminating the need for the end user to worry about complex and costly technology problems. We allow traders to focus on what matters most — alpha generation.

GX2 Spread Markets, LLC is a member of FINRA, SIPC, and NFA


President & CEO

David W. Jaberg is the President & CEO of both GX2 Systems and its wholly owned broker-dealer subsidiary, GX2 Spread Markets. Dave began in the financial industry as a runner on the Chicago Board of Trade. He now has over twenty-five years of experience in proprietary trading focusing on relative value treasury yield curve trading, statistical arbitrage, and market making. More recently, Dave has focused on leading projects that integrate the vast possibilities of technology into the objective of increasing the profitability of trade. In 2013, Dave helped found GX2 Systems, the parent company of GX2 Spread Markets, which is a FinTech firm combining proprietary technology and tightly controlled principal risk taking to provide relative value spread execution to clients free of leg execution uncertainty.
Additionally, Dave has just completed his PhD in Economics from the University of Illinois at Chicago. Dave received both a BA and MA in Economics from the University of Cincinnati and holds the Series 24, 7, 3, 57, and 99 registrations.

Head of Sales

Jennifer is the Head of Sales for GX2 Spread Markets, and has a deep background in institutional electronic trading and interest rates. Prior to joining GX2SM in 2016, Jennifer ran the marketing effort for Morgan Stanley’s Interest Rates Electronic Trading Group. She also held senior positions at both Credit Suisse and Barclays Capital where she led both the client analytics product development and client marketing efforts for the Interest Rate Sector. Both of these analytics platforms held top ranking positions in the annual Institutional Investor’s “Best Fixed Income Web-Analytics” client survey. Prior to her 10 years of experience in Investment Banking, she started her career at Bloomberg where she had a focus both in consulting and selling their Fixed Income Analytical Products.

Chief Compliance Officer

Patricia joined GX2 Spread Markets as the Chief Compliance Officer in January of 2017. Patricia has extensive experience in securities, derivatives and futures regulatory oversight and management. Patricia began her career at the CBOE where she started as a price reporter on the trading floor and moved to the Department of Market Regulation where she became a Director. In that role, Patricia interacted and collaborated with regulatory bodies across US and foreign markets in the development of consistent global regulation. Most recently, Patricia served as the Chief Compliance Officer at a large Wall Street firm supporting the firm’s securities and futures market making trading arm. Patricia has a BA in Business and holds the Series 4, 7, 14, 24, and 63 and the CAMS designation.


Check the background of GX2 Spread Markets, LLC and its investment professionals on FINRA’s BrokerCheck





GX2 Spread Markets, LLC
190 S. LaSalle St.
Suite 1950
Chicago, IL 60603
(312) 471-6300

New York

GX2 Spread Markets, LLC
85 Broad St.
18th Floor
New York, NY 10004


Jennifer Drag Carson
Head of Sales
(312) 471-6299


GX2 24/7 Technical Support Hotline
(312) 471-6300

Market Hours

7:30 PM EST -5:00 PM EST




“Transformation of the US Treasury Market”

November 03, 2016

The US Treasury market is becoming more and more automated, and some of the same firms that have brought automation to the equities market are moving into Treasuries, along with some new players. TABB Group founder Larry Tabb speaks with Jennifer Drag Carson, head of sales at one of the new firms entering the Treasury market, GX2 Spread Markets.

Interviewer Larry TabbTABB FORUM

“GX2 Systems at FinTech Exchange 2016”

April 21, 2016

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Video by MabblyAdvisor.TV News


“Spotlight on Innovation: 20 New Financial Technology Firms Show the Way Forward”

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In this article, MarketVoice spotlights 20 companies that typify this wave of financial technology innovation. All 20 were selected for the Innovators Pavilion at this year’s FIA Expo by a group of industry professionals and venture capitalists

by Will Acworth and Bennett VoylesMarketVoice