Market tide

NOTE: This is the documentation for websocket channels market_tide and otm_market_tide. Websocket access for personal use is only available through the Advanced plan. You can find fully-functional examples that stream data from many channels here:

Connect to the websocket URI: wss://api.unusualwhales.com/socket?token=<YOUR_API_TOKEN> then join the channel you wish to stream: market_tide for the live market-wide net call/put premium and volume aggregate. The OTM-only breakout is included in the same payload via the otm_net_* fields. Join otm_market_tide instead if you only need the OTM breakout. Every update is sent on both channels with the same timestamp, and the otm_market_tide message carries the otm_net_* values of market_tide under the names net_volume, net_call_premium and net_put_premium. If you join both channels, you receive the OTM values twice. Payload format:

[
  "market_tide",
  {
    "timestamp": "2026-04-27T14:27:54Z",
    "net_volume": 991,
    "net_call_premium": "488078.0",
    "net_put_premium": "-218102.0",
    "otm_net_volume": 1345,
    "otm_net_call_premium": "272395.0",
    "otm_net_put_premium": "-190694.0"
  }
]

Field reference

Aggregates roll up every option transaction across the market. net_* fields cover all options; otm_net_* fields are restricted to out-of-the-money contracts (where dealer hedging tends to dominate price action).

Field	Type	Description
`timestamp`	ISO 8601 string	Aggregation time, UTC.
`net_volume`	int	Net call volume minus net put volume across the entire market.
`net_call_premium`	decimal string	Net call premium (`ask_side - bid_side`) across all options, in dollars.
`net_put_premium`	decimal string	Net put premium (`ask_side - bid_side`) across all options, in dollars.
`otm_net_volume`	int	Same as `net_volume` but restricted to OTM contracts.
`otm_net_call_premium`	decimal string	Same as `net_call_premium` but restricted to OTM contracts.
`otm_net_put_premium`	decimal string	Same as `net_put_premium` but restricted to OTM contracts.

`otm_market_tide`

Payload format, for the same update as the market_tide example above:

[
  "otm_market_tide",
  {
    "timestamp": "2026-04-27T14:27:54Z",
    "net_volume": 1345,
    "net_call_premium": "272395.0",
    "net_put_premium": "-190694.0"
  }
]

Field	Type	Description
`timestamp`	ISO 8601 string	Aggregation time, UTC. Equal to `timestamp` of the matching `market_tide` message.
`net_volume`	int	Net call volume minus net put volume, counting only OTM contracts. Same value as `otm_net_volume` on `market_tide`.
`net_call_premium`	decimal string	Net call premium of OTM contracts, in dollars. Same value as `otm_net_call_premium` on `market_tide`.
`net_put_premium`	decimal string	Net put premium of OTM contracts, in dollars. Same value as `otm_net_put_premium` on `market_tide`.

Overview

Channels

Field reference

`otm_market_tide`