# Instrument class (single) A high-level classification (e.g. "Equities", "Bonds"). Instruments and holdings can be tagged with an instrument class and a more specific instrument-class-detailed. There is intentionally no list-all endpoint — clients can only fetch classes by ID, which they obtain via the holdings expand-mechanism (see /v2/holdings/reporting-entities/:id with `expand=instrumentClasses`). ## Endpoints GET /v2/instrument-classes/:id Fetch one instrument class. ## Path params id (required) — Instrument-class identifier (Mongo ObjectID). ## Attributes (`type: instrument-class`) name (string) — Display name.