It's 1450 out of 1500 ETF funds that I just wouldn't touch because they're not diversified enough. Or they have some huge speculative twist to them that if you can guess the markets right you will do very well for a day or two but who can do that? Nobody.
John C. BogleWe live in a very risky world and investors should not get "carried away" with excessive allocations to equities, or for that matter, real estate. As always asset allocation and low cost and broad diversification will be essential in earning one's fair share of whatever returns our financial markets are generous enough to bestow upon us.
John C. Bogle