curl --request GET \
  --url https://flow-api.skylit.ai/v1/underlying/{ticker}/rvol \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "bars": [
      {
        "timestamp": "<string>",
        "timestamp_end": "<string>",
        "call_volume": 1,
        "put_volume": 1,
        "volume": 1,
        "premium": 123,
        "stock_price": 123,
        "avg_call_volume": 123,
        "avg_put_volume": 123,
        "avg_volume": 123,
        "avg_premium": 123,
        "avg_days_count": 123
      }
    ],
    "stats": {
      "today_volume": 1,
      "today_premium": 123,
      "avg_volume": 123,
      "avg_premium": 123,
      "rvol_volume": 123,
      "rvol_premium": 123,
      "avg_days_count": 1
    },
    "call_rvol": 123,
    "put_rvol": 123
  },
  "meta": {
    "timestamp": "2023-11-07T05:31:56Z",
    "requestId": "d7574836"
  }
}