Open Interest Limit Channel

Description

Push changes to the single-user open interest (OI) limit for a trading pair. When the OI limit quota changes, this channel pushes a message containing the new values. A full snapshot of the current limit is pushed immediately after a successful subscription.

For stock contracts, the OI limit differs from crypto contracts: the single-UID limit can be up to 20%, and the single-user (master + sub-accounts) limit can be up to 40%.

Code
{
    "op": "subscribe",
    "args": [
        {
            "instType": "usdt-futures",
            "topic": "open-interest-limit",
            "symbol": "BTCUSDT"
        }
    ]
}

Code
{
  "event": "subscribe",
  "arg": {
    "instType": "usdt-futures",
    "topic": "open-interest-limit",
    "symbol": "BTCUSDT"
  },
  "connId": "xxxxxxxxxx"
}

Code
{
  "data": [
    {
      "symbol": "BTCUSDT",
      "notionalValue": "1000000",
      "singlePositionRatio": "0.1",
      "totalNotionalValue": "5000000",
      "totalPositionRatio": "0.2"
    }
  ],
  "arg": {
    "instType": "usdt-futures",
    "topic": "open-interest-limit",
    "symbol": "BTCUSDT"
  },
  "action": "snapshot",
  "ts": 1736371332162
}