The fast money is proving slow to jump on the market's bandwagon.
Hedge funds, decried by many as quick traders, have played catch-up during the market rally since March. The average fund was 45% "net long" as of May 19, or had investment holdings valued at 45% more than its bearish "short" positions, according to Hedge Fund Research.
Many funds are skeptical the economy has entered a new period of growth that justifies high equity multiples. Others fear dislocations from governments shoveling money at problems.
Some noted stock pickers remain wary.
If stocks keep surging, hedgies might have to jump in with two feet, giving the market another lift. But their continued hesitancy should be a sign of caution for investors.