EDGX/BZX Top-of-Book (REST/JSON)

EDGX Exchange
https://api-account.cboe.com/edgx/account/top/
BZX Exchange
https://api-account.cboe.com/bzx/account/top/

Effective 08/31/26, Cboe will begin redirecting users from the old batstrading URLs below to the new cboe URLs above. Users may wish to update their systems to the cboe URLs to avoid any disruption in the event redirection causes technical issues.

EDGX Exchange
https://api.batstrading.com/edgx/account/top/
BZX Exchange
https://api.batstrading.com/bzx/account/top/

Use this API to retrieve current top-of-book symbol data for all equity symbols. The data will be returned in a JSON format.

API requests for symbol data should be sent not more than once per second. More frequent requests will not provide more frequent updates.

Example Response

{
    "updateTime":"2017-08-30T17:10:18-04:00",
    "data":[{
        "volume":960681,
        "bidPrice":0.0,
        "name":"SPY",
        "lastPrice":245.96,
        "askSize":0,
        "bidSize":0,
        "askPrice":0.0,
        "routed":400,
        "matched":960281}]
}