Investors continued to pull money out of the SPDR S&P 500
ETF, with $4.36 billion leaving the fund in the latest
"Apple is a big holding in the fund, so this could be a vote
against Apple," Tjornehoj said. Shares in Apple,, which
is the world's most valuable publicly traded company, fell 8
percent on Wednesday after the company recorded quarterly
revenue that slightly missed expectations while sales of its
iPhone came in weak.