Once daily, the exchange publishes a comprehensive export of the ONE Product Complex or OPC on our public FTP site (https://ftp.onechicago.com/opc/). This export includes detailed relational mappings for product listings, their associated components, and all available contracts. Historical content is retained for 1 year. These files contain a number of attributes describing each relevant data set.
The complete OPC is published daily at 22:00 CT effective for the following business day. This process runs 6 days a week (M-F, Su) to ensure events affecting the OPC on holidays and weekends are always reflected in the available content.
The sections below describe each file as part of the OPC. It is important to note that the file contents are aggregated as comprehensive views of all joined attributes. Users should only need a single file based on their intended use.
Each night the exchange publishes an Instrument and Instrument Strategy file as part of the OPC. These files contain Delta1 instrument mappings for products available for the current day’s trading session. This file includes the Marketplace Security ID (MPSecID) for referencing outright futures, calendar spreads, and all other instruments.
Files are published daily and made available on the exchange's public FTP site in the OPC directory located at https://ftp.onechicago.com/opc/.
Within each directory, there exists a latest folder. This contains the most current OPC file and omits the embedded date in the file name. Users can programmatically access these files using the following static URLs: