QUOTE(danielchew @ Jul 1 2008, 10:38 PM)
Oh. Does it mean I have to find the end of the financial date stock price in order for me to calculate the PER of that financial year?
Hmmm I think what you want is the historical PER for the stock is it?
As far as I know, this is where your data gatherirng skills come into play as there is no list that I know of that states the PER movement of any particular stock.
Just for example sake,
If you want to track the PER of a company, first thing you need to decide is how the quarterly report will affect the EPS. Whether you will take the end of the year EPS as a constant for your PER calculation for the entire year or update it periodically with every quarterly report so you can have a more accurate EPS and thus PER calculation.
For example,
Take the yearly EPS stated for every year of a company and used it to calculate the PER for the following year. You can get a PER range from that but be aware PER doesn't stay constant due to price movements of a stock. And also you have to be remember that PER of a company changes according to business environment.
For example take plantation stocks, only in 2007 did a lot of plantation stocks start to have 20x PER due to the expected future returns of the company due to higher CPO prices. But historically, the PER might be less than 17x. So although past PER might be less, future PER can be changed.
PER of a company is also affected by BULL and BEAR markets. A bear market might pressure the stock prices of company thus affecting the PER but it might not affect the EPS at all. Where as a BULL market might exagerate the PER due to 'feel good' sentiments.
Thus the danger of depending on Past PER (during BULL run) and comparing to current PER (BEAR market), might be misleading.
To answer your question, if you are using KLSE Tracker software (OSK users), you have access to a list of the company you selected's yearly PER, EPS, stock price as well as other statistics such as ROE and ROA although it doesn't represent the entire year. As i believe the numbers are taken only at the end of the year.