# Instrument net asset values (NAVs)

Time series of NAV observations. Used only with private-equity /
private-market-fund instruments.

## Endpoints

GET /v3/instruments/:id/net-asset-values
  Fetch the NAV history.

POST /v3/instruments/:id/net-asset-values
  Append one NAV observation.

DELETE /v3/instruments/:id/net-asset-values/:navId
  Delete a specific NAV. Note this endpoint sits *under* the
  instrument, not at /v3/net-asset-values/:id.

## Path params

  id    (required) — Instrument identifier (Mongo ObjectID).
  navId (required, only on DELETE) — NAV identifier.

## Attributes (`type: net-asset-value`)

  officialDate   (string, ISO 8601, required) — Official NAV date.
  effectiveDate  (string, ISO 8601, optional) — Date from which the NAV is
                                                 effective. null → defaults to officialDate.
  value          (number, required)            — Net asset value, in fund currency.
  id             (string, read-only)           — Use to construct the DELETE URL.