I'd like to find the annual returns of, say, the All Ordinaries index (or Small Ordinaries). Firstly, what's a free, reliable source of this data? Secondly, how exactly are these returns calculated?
You know, when a fund manager says "our fund returned x%, while All Ordinaries returned y% in 2013" - where do they get the All Ordinaries number? Or do they all calculate it themselves?
It seems like such a trivial thing to do yourself, but the results vary wildly. When I calculate the returns myself based on Yahoo Finance data and compare that what Google Finance shows I get drastically different values. If I look at something like this AMP PDF the values are different again. Neither Google nor Yahoo nor AMP say anything about how they come up with that % number.
You know, when a fund manager says "our fund returned x%, while All Ordinaries returned y% in 2013" - where do they get the All Ordinaries number? Or do they all calculate it themselves?
It seems like such a trivial thing to do yourself, but the results vary wildly. When I calculate the returns myself based on Yahoo Finance data and compare that what Google Finance shows I get drastically different values. If I look at something like this AMP PDF the values are different again. Neither Google nor Yahoo nor AMP say anything about how they come up with that % number.
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