Strike-level flow concentration
Where the directional money is going for {ticker}. Top-N strikes
by selected ordering (premium, net premium, volume, etc.) with
bullish/bearish premium split, ask/bid mix, and OI context. Includes
a top-3 concentration summary.
Authorizations
Skylit API key in the Authorization header
(Authorization: Bearer fs_live_<key>). X-API-Key is also accepted.
Path Parameters
Underlying ticker symbol (uppercase, e.g. SPY, AAPL).
"SPY"
Query Parameters
Lower bound of the window. Accepts RFC 3339
(2026-05-27T13:30:00Z) or Unix seconds.
"2026-05-27T13:30:00Z"
Upper bound of the window (RFC 3339 or Unix seconds).
"2026-05-27T20:00:00Z"
Number of strikes to return.
1 <= x <= 100Restrict to calls or puts only.
call, put net_premium, total_premium, volume x >= 0x >= 0
