The Dow Jones Industrial Average fell 26 points Thursday to 12,393 -- pushed lower by sentiment that May's U.S. Non-Farm Payroll report will, to be released Friday, will be tepid. The Nasdaq closed down 10 points to 2,827 and the S&P 500 finished 3 points lower to 1,310.
For the month of May, the Dow lost 6 percent -- the worst monthly decline in two years for the world's most closely followed stock market index.
Oil fell another $1.30 to $86.72 per barrel, and gold declined $11 to $1,565 per ounce.
The euro continued to weaken versus the U.S. dollar, falling about 1 cent to $1.2363.
The 10-year U.S. Treasury note was at 1.58 percent.