ALL ART Index – overview

Artist Price

Tickers

Options

Artist Price

  • All Art Chart shows the ‘Artist Price’ performance of the All Art Index.
  • ‘Artist Price’ is the weighted moving average of 24 months’ worth of sales at 130 auction salerooms worldwide (buyer’s premium removed) where weights attached to observations decrease arithmetically, with older observations having the smallest weights.
  • To be eligible for inclusion in the All Art Index, artists must have sold at least one work in a 24-month period.

Tickers

  • Index is the sum of artist prices rebased to 1000 in January 1978.
  • Month Change is the percentage change calculated from the month immediately preceding the most recent month update.
  • UMV (Underlying Monetary Value) is the sum of ‘Artist Prices’ computed each month.

Options

  • Smoothing can be applied over the whole time series. Auction sales traditionally revolve around Spring and Autumn seasons and smoothing can be used to help identify trends. While the selection of a smoothing value is subjective, a default assumption where smoothing alpha is equal to 0.2 has been chosen as value useful for identifying longer-term

  • Different time frames can be selected from the date boxes;
    • 1 year
    • 2 years
    • 5 years
    • All (since 2007)
    • Historic data starting in 1978 is available by contacting AMR

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