[thearn4]

If I compare that to a total market index (say, Vanguard's VTI) over a few years, it honestly doesn't look explosive or anything. Why not just invest in the total market (giving no preference for the valley), and be done with it?

[shapov]

Really, who the hell cares about volatility, when it's your retirement at stake /s

Really though, [anything that loses half it's market cap](http://www.reuters.com/article/linkedin-results-research-idU...) in a span of a day should not be in your retirement portfolio, and lets face it, most of these 'growth' oriented startups that go IPO, are susceptible to those losses.

EDIT: Just to clarify. When I say growth oriented, I mean the companies that burn through money to get as many users as possible, without a clear monetization strategy(other than, we'll sell ads).