QUOTE(gecodine @ Aug 11 2009, 12:32 PM)
Hehe...

I already go thru the stock performance guide, but i think its not enough, bcoz they didnt provide us with the average of all p/e, div yield etc in each sector for each year. oso, the risk indicator beta & std deviation where to find?
Look back historical data is good, but it to go for too long period, it could become meaningless already.
Just like abc company 50 years ago, might not as same as now. For eg. GM is selling like hot cake and one of big blue chips 50 years ago, now tapao already.
Company business is not stagnant, it could evolve and change, so by looking its historical PE, div yield, beta, standard deviation does not give you a clue whether you should invest or not.
Don't get me wong, looking back history is a good exploring knowledge and tell us a bit of the background story, but it doesn't indicate how compang future or share price future will be.
Existing business model strenght, profitability and profitability future is the most important thing to look at.
Things always changing.