Based on current P/E ratios, the higher chances of an inverted yield curve, companies going private or not going public, and market analysis from folks like Vanguard about future returns being muted, my opinion is that most equities returns have been pulled forward, risk-adjusted returns will be comparable to bonds, and that there will both be a market pullback in the foreseeable future with total market value moving roughly sideways from today's highs for quite a while.