I think if you look at the amount of complacency relative to the overvaluation stocks have really never been this expensive and people have never been this sure that they're not going to go down.
Related trading instruments: SPDR S&P 500 Index ETF (SPY), iShares Russell 2000 Index ETF (IWM), SPDR Dow Jones Industrial Average ETF (DIA), Nasdaq 100 Index ETF (QQQ)
