DSS Composite API

Sarah050515

Hi,

i ve received question from DSS API user (Composite API)

While trying to find RIC of Microsoft Put Option Expiring on Oct 16 2026, RIC of the
underlying Equity US5949181045 (MSFT.OQ as per Composite Api), when used as
Underlying RIC along with other parameters of Option such as Strike, Expiration
Date, Put call Indicator and Currency Code doesn’t return the RIC. But when
MSFT.O is used as Underlying RIC, then RIC of the Option is
returned(MSFTV162649000.U).

Could you please clarify why a RIC of Equity retrieved via COMPOSITE API is not being
considered as Underlying of the Option.  

Thanks

Jirapongse

@Sarah050515

Thank you for reaching out to us.

I checked in the DSS Web UI and found that the underlying RIC of MSFT Oct6 490.0P (MSFTV162649000.U) is MSFT.O, not MSFT.OQ.

Could you please clarify why a RIC of Equity retrieved via COMPOSITE API is not being
considered as Underlying of the Option.  

For this DSS content-related question, please contact the DSS support team directly via LSEG Support.