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GET
Relative-volume bars for a contract

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

symbol
string
required

OPRA option symbol in URL-safe form: {ticker}__{YYMMDD}{C|P}{strike×1000, 8 digits} — the ticker and the 15-character contract block are joined by a double underscore (__). For example, an AAPL $250 call expiring 2026-01-17 is AAPL__260117C00250000. (A space-padded 21-char OCC form such as AAPL 260117C00250000 is also accepted on some endpoints, but the __ form is canonical and works across all contract routes.)

Example:

"SPY__250516C00580000"

Query Parameters

interval
string
default:1D

Trailing window — {N}D where N is 1–365.

Example:

"1D"

bucket
enum<string>
default:5min
Available options:
1min,
5min,
10min,
15min,
30min,
1d,
1w
avg_period
string
default:14d

Baseline lookback as {N}d (e.g. 14d). Max 365 days.

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"

order_by
enum<string>
default:time
Available options:
rvol,
volume,
premium,
time
order
enum<string>

Sort direction. Defaults to asc when order_by=time, otherwise desc.

Available options:
asc,
desc
limit
integer
Required range: x >= 1
format
enum<string>
default:full
Available options:
full,
summary

Response

RVOL bars + aggregate stats for the contract.

data
object
required
meta
object
required