Cboe Silexx
Cboe Silexx is a premier Order and Execution Management System (OEMS). We built Silexx to provide an intuitive, simple-to-use platform that supports various business models in order to meet your daily execution needs. As our in-house platform, we value customer input to continually enhance the platform for the benefit of our users.  
Direct market access to Cboe Options Exchange, Cboe EDGX Options Exchange, and Cboe Futures Exchange
Exchange- and Broker-Neutral trading activity.
Fully customizable platform with a user-friendly trading experience for individuals and organizations.
A Regulation SCI entity fully regulated by the SEC.
Take action and request a Cboe Silexx Demo today:
Order Types

Regular Orders

  • Single Leg
  • Multi-leg, including tied orders

Paired/Crossing Orders

  • Up to 10 contra parties
  • Single leg and Multi-leg, including tiered orders
  • Automated Improvement Mechanism (AIM)
  • Sweep & AIM, single leg only
  • Solicitation Auction Mechanism (SAM)
  • Qualified Contingent Cross (QCC)
  • For additional crossing order information view, our Cboe Options Crossing Guide
Additional Functionality
  • Implied Volatilities & Greeks powered by Cboe Hanweck
  • FIX Order Routing and Trade Drop Copy Network, facilitating fully electronic workflows
  • Third Party Router / Executing Broker Network, providing access to all options exchanges and broker algos
  • CAT Reporting
  • Risk Administrator defined and managed risk controls and market access checks. View our Cboe Silexx Risk Settings for more information.
FLEX
Cboe Silexx provides direct market access to trade FLEX options on Cboe. FLEX functionality is free on Cboe Silexx and supports all Cboe Options Exchange FLEX features including:
  • Single and multi-legged orders (100 legs)
  • Fully electronic order handling
    Single-sided auctions
    Crossing auctions
  • Manual order handling
    Route to a Cboe Floor Broker using Silexx
    Route to a PAR workstation for open outcry execution
  • Delta Adjusted at Close (DAC) - now live
  • FLEX Micros*
  • Fixed or Percentage pricing methods
  • Spreadsheet import for efficiency
  • Risk Administrator defined and managed risk controls and market access checks. View our Cboe Silexx Risk Settings for more information.

    *Pending SEC approval
Fee Summary
$275
per login / month for
logins 1 thru 8
$100
per login / month for
logins 9 thru 16
FREE

17+ logins
Cboe Silexx logins only able to trade FLEX are free.
Login fees are waived for the first month for any new individual user.
Market data fees passed through.
Take action and request a Cboe Silexx Demo today:
Contact
For additional information regarding Cboe Silexx or to request a demonstration, email isgsales@cboe.com.
Cboe Information Solutions
Cboe Silexx is part of the Cboe Information Solutions unified suite of derived data products and risk analytics helping clients navigate the market in real-time. Cboe Information Solutions recognizes that market participants and investors at all levels benefit from asset stability, protection of principal and capital growth. Our extensive and comprehensive array of data and analytics solutions optimize clients' workflows and refine trading activities.