CSE.SEE wrote:Jana1 wrote:CSE.SAS wrote:Anyone need more Empirical evidence about base year calculation
None of ur threat contain how ASPI base year was calculated. Only one journal explain the formula which is available in CSE website.Have u read those befr u published here? Most looks irrelevant..
All Share Price Index (ASPI)
It is a value-weighted price index, which incorporates all the voting ordinary shares listed on the CSE. The base year is 1985, and the base value of the index is 100. ASPI showed 7,811.82 points as its highest value on 14th February 2011. Current ASPI value is the broadest and the longest measure of the level of the Sri Lankan stock market. 259 companies are currently listed on the CSE, representing twenty (20) business sectors with a market capitalization of Rs. 2,355. Billion as at 5th July 2011.
As explained above the ASPI is a value weighted index based on market capitalization where the weight of any company is taken as the number of ordinary shares listed in the market. This weighting system allows the price movements of larger companies to have a greater impact on the index. Such a weighting system was adopted on the assumption that the general economic situation has a greater influence on larger companies than on smaller ones.
The ASPI indicates the price fluctuations of shares of all the listed companies and covers all the traded shares of companies during a market day. The ASPI is calculated using the following formula;
Base values are established with average market value on year 1985. Hence the base year becomes 1985.
http://forum.srilankaequity.com/t6880-an-introduction-to-stock-market-indices
These are vague statements. Go and read all threats and understand how ASPI really works rather than simply assuming 1985 base year. That s totally false..There are more things inside..