Introduction

The Cboe Titanium Cboe One Options feed delivers consolidated quote and trade information for the Cboe Options (C1), C2 Options (C2), EDGX Options (EDGX), and BZX Options (BZX) Exchanges simple books via UDP using the binary Cboe One protocol. The feed consists of Symbol Summary, Best Quote Update, Market Status, Trade, Trade Break, and Trading Status messages.

The UDP delivered feed is sourced from the Cboe One Feed Server (FS). The FS generates the multicast events for the Cboe One Options feed and performs throttling of events to ensure the bandwidth requirements of the feed are not exceeded. The FS does not receive messages from users and no login is necessary. Users may also connect to the Cboe One Gap Request Proxy (GRP) for retransmission of missed packets on the UDP feed by the Cboe One Gap Server (GS).

It is important to note the Cboe One Options feed is an aggregated feed. Symbol updates are sent as feed capacity allows. The image for a symbol will be current at the time of delivery, but multiple updates may be combined into a single update. The interval between updates is dependent on the market conditions and the capacity configuration of the Cboe One Options feed.

The maximum output bandwidth of the Cboe One Options feed will not exceed 5 Gb/s. Users may choose to take the feed from the Primary or Secondary data centers, depending on the user's location and connectivity to Cboe.