Getting Started

  1. Navigate to 

  1. Click on the LOGIN / SIGN UP button, located either at the top right corner or along the left hand side of the screen. When using the mobile version, the login button will appear at the center of the screen.

  1. Fill in your login details and click on continue

  1. You will be directed to the ErisX Member Portal. Click on the Trade button on the top right of the screen to access the Advanced Trading Interface.

  1. Select the product you wish to trade by clicking on the Product dropdown located at the top left of the screen. See the Market Selector section for more details.

  1. Click on the Account dropdown and select the account you wish to use to trade with.

  1. Use the Order Entry panel to customize your order. Select either the Buy or Sell options, the order type and fill the appropriate parameters. See detailed instructions in the Order Entry panel section.

Market Selector

The Market Selector dropdown enables the user to select the active product/contract. The Active product/contract has the following effects in the Trading UI:

  • The Order Book will display order depth-of-book quote information for the active product/contract.

  • The Chart will display price/volume and trend data for the active product/contract.

  • When submitting orders and/or using algo order types in the Order Entry and/or Algo Entry panels, orders will submit for the active product/contract.

  • The Trade History will display the latest trades for the active product/contract.

The product/contract displayed in the drop down menu is the active one.

To change the active product/contract:

  1. Click on the Product dropdown.

  1. A dropdown will appear, click on the Product that you will like to become active.

  1. If you wish to select a Futures contract, once the Product has been selected, a new dropdown menu will appear to select Contract

  1. Click on the Contract dropdown and click on the contract that you wish to become active.

Order Entry Panel

This section only applies to logged in users with active trading accounts and trading permissions. Users who are not logged in and/or do not have a valid trading account with trading permissions will observe disabled Order Entry panel.

Click on the Tooltip to get details about each component!

The Order Entry panel is used to submit orders to buy or sell the Active Product/Contract. It enables the user to configure the order with the desired set of parameters. 

  1. Select whether the order will be a Buy or a Sell order. This can be done by clicking on the BUY and SELL boxes, located at the top of the Order Entry panel. When the Buy order tab is selected, the background of the BUY tab and the Review & Buy button will be blue. When the Sell order tab is selected, the background of the SELL tab and the Review & Sell button will be red.

  1. Configure the price at which you wish to buy/sell and the quantity you wish to buy/sell. Type in the desired quantity in the Quantity box and type the Price at which you want to buy/sell in the Limit Price box

Tip: Click on a price in the order book widget to auto populate the Limit Price section of the Order Entry panel with the clicked upon price.

  1. After filling in the information described above, the Review & Buy/Sell button will be highlighted to indicate that all required parameters have inputs. Click on the Review & Buy/Sell button.  An order confirmation pop-up will prompt you to review the order details. Once you have reviewed your order and are sure it meets your intended parameters, click Place Buy/Sell Order to submit it.

  1. Once the order is submitted, you will see a pop-up to confirm that your order has been submitted to the Exchange along with the Client Order ID (CLORDID) and a summary of the order or an error message in case a problem was encountered with your order. Once your order is submitted you can see all the order details in the Open Orders and Order History tables.

Post Only

A post only order is an order that will only be placed in the market if it will not immediately trade with another resting order in the market. It ensures that the order will be a passive orderClick on the Post Only checkbox to enable this feature in your order. 

Convert an Amount

This feature can be used to enter an amount of a product you wish to buy or sell in the quoted currency and the ticket will auto populate the price and quantity for an order to buy/sell the specified amount.

To enable this feature:

  1. Click on the convert an amount checkbox

  2. A new box will appear for the [quoted currency] amount

  3. Type the amount you wish to purchase/sell 

In the example below, we wish to buy $500 worth of BTC/USD, so we enable the convert an amount feature and type 500 in the USD Amount box. This action, auto populates the Quantity and Limit Price boxes with the appropriate values (Note that Quantity and Limit Price are highlighted to indicate that these values have been auto populated as a result of the convert an amount feature). 

Note: Fees are not included in the calculation. e.g. This transaction will have a total cost of $500 plus fees. 

This feature enables quick conversions. The user can modify any of the three inputs (Quantity, Limit Price and Amount) and the values will automatically recalculate in the following way:

  • If the Quantity value is modified, the Amount will be recalculated based on the Limit Price value as per the formula Amount = Quantity * Limit Price.

  • If the Limit Price value is modified, the Quantity will be recalculated based on the Amount value as per the formula Quantity = Amount / Limit Price.

  • If the Amount value is modified, the Quantity will be recalculated based on the Limit Price value as per the formula Quantity = Amount / Limit Price.

  • If the Limit Price value is blank, when the Amount value is changed, the Limit Price will be set with the snapshot of the best price in the market at that moment. 

Time in Force

The Time in Force feature allows the user to configure the duration of an order before it will expire. See the Time in Force section at the bottom of the linked article for a detailed description on each of the supported values.

Click on the Time in Force dropdown menu to change the time in force of your order.

Order Types 

Click on the Order Type dropdown to select the desired order type. For a detailed description of supported order types, please see the Order Types section.

Multiple Accounts

Users who have multiple accounts are able to switch between accounts to submit orders. In order to select a different account, click on the Account dropdown and choose the account from which you wish to submit an order.

When you click on the dropdown, you can use the search bar to easily find the desired account. Begin typing the account number you are looking for and the list will automatically be filtered based on your input. Once you identify the account, click on it to select it.

Order Book

The Order Book widget represents a real-time view of the market. 

The My Qty column represents your orders. When you have orders working the quantity of the orders will appear at the appropriate price level so you can easily identify where your orders are working.

The Price column represents the price at which an order in the market is executable. Offers are presented with red while bids are represented with blue.

The Qty column represents the total quantity that is resting at the corresponding price level.

To the right of the Qty column, a series of bars are displayed, which indicate the proportion of the total quantity in the order book that is working at that particular price level.

The section between the bids and offers, represents either the Mid-Price (average between best bid and best offer) or the Last Trade Price when a trade occurs. An up/down arrow indicates if the market moved up/down with the most recent trade relative the previous trade value.


  • When the quantity in a price level changes, the quantity value will be highlighted.

  • When a new price level appears in the book the price level row will be highlighted.

  • When a trade occurs the Mid-Price section will be highlighted and the trade price will be displayed.

  • Click on a price to auto populate the Limit Price value in the Order Entry or Algo Entry panels

  • Click on the a value in the My Qty column to automatically filter the Open Orders table to search for your order.