The constituents of the theme are Vanguard funds tracking the total US stock market -
- past performance of the theme is indicative of the trends which dominated these major categories
- relative weights of the 3 constituent ETFs reflect investor perceptions which might be extended into the near future
- potential reversal in any one category over the short term could signal shifting investor sentiment on the US bond or equity markets, or on the international market
- by bookmarking the self-constructed index, track total market trends regularly and over short periods
About Vanguard (source Wikipedia)
The Vanguard Group is an American registered investment advisor based in Malvern, Pennsylvania with over $4.5 trillion in assets under management. It is the largest provider of mutual funds and the second-largest provider of exchange-traded funds (ETFs) in the world

