Talk:Extended market index fund

Reader feedback: The page link that supposedl...
155.56.68.218 posted this comment on 6 January 2015 (view all feedback).

"The page link that supposedly shows benchmark statistics from Vanguard for the 500 / 4500 mix hasn't been updated since 2012. Can you find a more current link?"

This is the link: Vanguard - Key Benchmark Statistics, I can't find anything more recent at Vanguard. The difficulty is to find the ratio of the S&P to Wilshire 4500 completion indexes. Finding individual indexes is easy straightforward, the ratio is more elusive. Or, is it simply taking the ratio of the market caps?
 * Wilshire 4500 Completion Index, $1.6 billion as-of September 30, 2014.
 * S&P 500®, $38,449.63 million (mean) as-of December 31, 2014.

The dates differ by a few months and I'm not sure of which market cap property to use (mean, full, adjusted, etc.). The numbers don't align with an 80/20 ratio, so I don't think I'm doing this right. LadyGeek 18:55, 7 January 2015 (CST)