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Option Margin

Update Stock Option Margin

Update a stock-option margin-factor record, adjusting the upper and lower global option margin factor bounds for an underlying.

Request parameters

  • Required: counter_id (stock code).
  • See the field descriptions for the format, value range, and business meaning of each field.

Business notes

The upper and lower bounds of the initial, maintenance, and forced-liquidation margin factors, together with the uncovered minimum factor (un_covered_min), determine the allowed range of the underlying's global option margin.

Risk warning

This operation modifies a global stock-option margin configuration and affects margin calculations for all client option positions on the matched underlying. Confirm the target record and parameters before calling.

Result

On success, the record is updated; subsequent state and returned data follow the 200 response definition.

POSThttps://b-api.lbkrs.com/risk/v1/stock_opt_margin_ratio/update

Authorization

AuthorizationstringheaderRequired

Send the Broker ACCESS_TOKEN as Authorization: Bearer <token>.

Permission

credit_management.option_stock_margin_ratio_query

The Broker ACCESS_TOKEN must be granted the permission above, or the call will be rejected.

Request body application/json

counter_idstringrequired

Security code. Format is {type}/{market}/{code}, for example, stock ST/HK/700 or ST/US/AAPL, and option OP/US/AAPL270319C320000.

max_im_factorstring

Option margin upper bound IM

max_mm_factorstring

Option margin upper bound MM

max_fm_factorstring

Option margin upper bound FM

min_im_factorstring

Option margin lower bound IM

min_mm_factorstring

Option margin lower bound MM

min_fm_factorstring

Option margin lower bound FM

un_covered_minstring

Option minimum margin

remarkstring

Remark

audit_frontend_resourceobject

audit_frontend_resource

Responses

HTTP 200OK
Standard response envelopecodemessagedata
dataobjectdata structure
ticket_idstring
HTTP 400Bad request. Check the business error code in code and the error details in message.
Standard response envelopecodemessagedata
dataobjectdata structure

No nested fields

HTTP 401The user is not authenticated, or the login session has expired.
Standard response envelopecodemessagedata
dataobjectdata structure

No nested fields

HTTP 403The current account is not authorized to use this feature. Grant the required permission to the account in User Permission.
Standard response envelopecodemessagedata
dataobjectdata structure

No nested fields

HTTP 408The request timed out. Check the business error code in code and the error details in message.
Standard response envelopecodemessagedata
dataobjectdata structure

No nested fields

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