Índice de Precio Selectivo de Acciones
From Infogalactic: the planetary knowledge core
The Indice de Precio Selectivo de Acciones (IPSA) is a stock market index composed of the 40 stocks with the highest average annual trading volume in the Santiago Stock Exchange (Bolsa de Comercio de Santiago). On the last trading day of the year, the index is re-based back to 1000. The index has been calculated since 1977 and is revised on a quarterly basis.[1]