Morningstar has 10 years of historical P/E for a stock. See example at http://i802.photobucket.com/albums/y...ps94f35d2c.jpg
Originally Posted by burrow
I have Morningstar Premium (paid) but I think this might be available on free accounts.
The two figures which you might find useful are:
Average annual P/E ratio
Calculated on the basis of monthly closing prices and gives an indication of the company's P/E over time. It
is measured by dividing the monthly closing share price for that year by earnings per share.
Average annual P/E ratios can provide a useful benchmark for comparing the company's current P/E ratio.
Companies which are selling for much more than their historical P/E could be overvalued. It is important to
bear in mind, however, that other factors can influence the level of P/E ratios. In the current low interest rate
environment, for example, higher P/E ratios can be sustained.
Relative P/E Ratio
A comparison of the company's average P/E ratio with the market's P/E ratio. It is measured by dividing the
average P/E for the year by the average P/E for the All Ordinaries Index.
This is a further useful check on P/Es when used in conjunction with average P/Es. Overall P/Es will vary
over time, particularly with movements in interest rates. Using the relative ratio helps to adjust for these
overall factors which influence all companies.
You might also be interested in Market average P/E
Look for Average P/E ratios and average dividend yield
Monthly back to January 2000.
CSV or XLS (not sure what the XLS is, but my Excel 2010 says it is not XLS but proceeds to open it anyway).
Reserve Bank has 3 years of monthly data and then back another 2 years or so with June figures.
Look for Australian Share Market - F7 [PDF]
It's only in PDF unfortunately.