Based on Bloomberg's Smart Money Flow indicator, there is a very significant amount of distribution going on... the question is just who is soaking up the smart money selling? Company buybacks, Johnny 5, or a greater-fool retail investor?
Perhaps this chart from Lance Roberts at STA Wealth provides some color for who?
However, the idea that individual investors are still "out of the market" should be taken with a bit of caution. The chart below is data compiled by the American Association of Individual Investors (AAII) which surveys it membership on portfolio allocation. The data is compiled and released monthly.
With cash hovering at the lowest levels since the "Tech Wreck," and equity exposure at the highest, investors are more than just "warming up" to equities. They are effectively "all in" with respect to the financial markets.