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GET
/
v1
/
underlying
/
{ticker}
/
by-strike
Premium / volume by strike
curl --request GET \
  --url https://flow-api.skylit.ai/v1/underlying/{ticker}/by-strike \
  --header 'Authorization: Bearer <token>'
{
  "data": {
    "ticker": "<string>",
    "underlying_price": 123,
    "total_call_premium": 123,
    "total_put_premium": 123,
    "total_call_volume": 1,
    "total_put_volume": 1,
    "pc_ratio": 123,
    "top_strike": 123,
    "strike_count": 1,
    "max_pain": 123,
    "bars": [
      {
        "strike": 123,
        "call_volume": 1,
        "put_volume": 1,
        "call_premium": 123,
        "put_premium": 123,
        "call_oi": 1,
        "put_oi": 1
      }
    ]
  },
  "meta": {
    "timestamp": "2023-11-07T05:31:56Z",
    "requestId": "d7574836"
  }
}

Authorizations

Authorization
string
header
required

Skylit API key in the Authorization header (Authorization: Bearer fs_live_<key>). X-API-Key is also accepted.

Path Parameters

ticker
string
required

Underlying ticker symbol (uppercase, e.g. SPY, AAPL).

Example:

"SPY"

Query Parameters

interval
enum<string>
default:1D
Available options:
1D,
1W
dteFilter
enum<string>
default:all

DTE bucket — all, 0-7, 8-30, 31-90, or 90+.

Available options:
all,
0-7,
8-30,
31-90,
90+
date
string<date>

Trading date the request targets, in YYYY-MM-DD. Defaults to the current trading date (the most recent session that has settled enough data to be queryable). Past dates fall through to the daily rollup tables.

Example:

"2026-05-27"

Response

Strike distribution (snake_case).

data
object
required
meta
object
required