Delete Client Stock Option Margin

Delete a client's stock-option margin-factor record, removing the client's option margin configuration for a given underlying.

Request parameters

• Required: user_stock_opt_margin_ratios (the client-level stock-option margin configurations to delete; at least 1 item). Each item requires counter_id (the underlying, in {type}/{market}/{code} format, such as ST/US/AAPL) and aaid (the internal securities-account ID; use the aaid_val of a row returned by POST /v1/datasets/risk_member_option_margin_ratios, not account_no).
• Optional: audit_frontend_resource (audit context submitted by the caller).
• Example: {"user_stock_opt_margin_ratios":[{"counter_id":"ST/US/AAPL","aaid":"10000000"}]}.
• See the field descriptions for the format, value range, and business meaning of each field.

Business notes

Once deleted, the record no longer participates in margin calculations for the client's option positions, and the client falls back to the default or higher-level margin rules.

Risk warning

This operation deletes a client-level stock-option margin configuration and directly affects the margin requirements on the client's option positions. Confirm the target record before calling.

Result

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