Returns all metrics for a fund in a single paginated response, with the
latest observation per metric name.

Metric groups:

• NAV: latest net asset value per share in the quoted currency
• AUM: total fund assets under management, aggregated across all share
  classes of the fund
• Cumulative returns: YTD, 1M, 3M, 6M, 1Y, 3Y, 5Y, 10Y and since
  inception, in percent
• Annualized returns: 3Y, 5Y, 10Y and since inception, in percent
• Calendar year returns: calendar_year_return_YYYY, in percent
• Risk and cost metrics: volatility, Sharpe ratio, beta, alpha, information
  ratio, tracking error, max drawdown, TER, ongoing charges and SRI

Coverage varies by metric and fund. NAV and AUM cover most of the fund
universe. Performance returns are backfilled progressively and may be
unavailable for individual funds. The date field of each item states
the observation date of that value.

Use fields to select specific metrics by metricId or metricName.
The endpoint /v2/funds/metrics/names returns all valid metric names.