Option contract rank

GET /api/v1.0/quote/option-rank

Option contract rank. option_market as above; sort_type default VOLUME. count default 50 (max 200). Returns contract code/name, CALL/PUT, volume/turnover, OI, IV, price change, greeks (subset). For free-form screening use quote.option_screen; for underlying rank use quote.option_underlying_rank.

Parameters

Name	Type	In	Required	Description
option_market	string	query	yes	Option market. US_SECURITY / US_INDEX / HK_SECURITY / HK_INDEX
sort_type	string	query	no	Sort type, default VOLUME
is_asc	bool	query	no	Ascending; default false
page_size	int	query	no	Page size, default 50, max 200
page_flag	string	query	no	Page cursor. Omit or pass empty on the first page; pass back pagination.page_flag. Stop only when pagination.completed is true
trading_date	string	query	no	Trading day YYYY-MM-DD; omit for latest. Date YYYY-MM-DD in the security's market timezone

Example

curl -X GET 'https://webapi.moomoo.com/api/v1.0/quote/option-rank?option_market=US_SECURITY' \
  -H 'Authorization: Bearer <AccessToken>' | jq

Response parameters

Name	Type	Description
data.ranks	object[]
data.ranks[].code	string	Option contract symbol
data.ranks[].name	string	Option name
data.ranks[].option_type	int	CALL / PUT
data.ranks[].volume	string	Volume
data.ranks[].turnover	string	Turnover
data.ranks[].open_interest	string	Open interest
data.ranks[].oi_increment	int	Daily OI increase (>=0)
data.ranks[].oi_decrement	int	Daily OI decrease (>=0)
data.ranks[].iv	number	Implied volatility (percent)
data.ranks[].option_price	string	Option last price
data.ranks[].change_rate	number	Change rate (percent)
data.ranks[].mid_price	string	Mid price
data.ranks[].bid_price	string	Bid
data.ranks[].ask_price	string	Ask
data.ranks[].bid_volume	string	Bid size
data.ranks[].ask_volume	string	Ask size
data.ranks[].delta	number	Delta
data.ranks[].gamma	number	Gamma
data.ranks[].theta	number	Theta
data.ranks[].vega	number	Vega
data.ranks[].rho	number	Rho
data.trading_date	string	Actual query trading day
pagination.total	int
pagination.completed	bool	True when this is the last page. Stop paging only when completed is true
pagination.page_flag	string	Next page cursor. Pass it back as page_flag while completed is false; empty on the last page

Errors

ret_code	error.code	Description
0	—	Success
-3	invalid_parameter	Missing or invalid parameter
-8	unsupported	Not supported
-10	no_data	No data

Response example

{
  "ret_code": 0,
  "ret_msg": "success",
  "data": {
    "ranks": [
      {
        "code": "US.AAPL",
        "name": "example",
        "option_type": 0,
        "volume": "example",
        "turnover": "example",
        "open_interest": "example",
        "oi_increment": 0,
        "oi_decrement": 0,
        "iv": 1.2,
        "option_price": "example",
        "change_rate": 1.2,
        "mid_price": "example",
        "bid_price": "example",
        "ask_price": "example",
        "bid_volume": "example",
        "ask_volume": "example",
        "delta": 1.2,
        "gamma": 1.2,
        "theta": 1.2,
        "vega": 1.2,
        "rho": 1.2
      }
    ],
    "trading_date": "2026-10-16"
  },
  "pagination": {
    "page_flag": "",
    "completed": true,
    "total": 0
  }
}