Corporate insiders have pulled back a bit on their activity lately, especially in tech stocks. It's not enough to consider it a negative yet, though. In energy and utilities, they've picked up their buying interest to a level that has preceded good returns in those sectors.; Daily moves in the S&P 500 index have becoming less correlated to the breadth of movement in its underlying stocks to the 2nd-most extreme degree in 30 years. There is also a near-record negative correlation between value and growth stocks. Only the year 2000 can match this type of odd behavior.

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