European shares slid after euro-area data showed slower inflation and joblessness near a record high, while Treasuries extended a selloff into a fourth day.
U.S. stocks extended a worldwide sell-off on deepening concern over the health of the global economy and Netflix Inc. and EBay Inc. dropped after reporting earnings.
The yen and Australian dollar, the two worst-performing major currencies last year, headed for the biggest weekly increases in at least two months on speculation their recent declines were too rapid.
The dollar declined from a four-month high amid Treasury yields at an almost six-week low before the Federal Reserve meets next week to determine whether to continue scaling back stimulus.
The 18-nation currency slid vs. most of its peers after ECB Executive Board member Benoit Coeure said the central bank is “very seriously” considering negative deposit rates.
Trading may be subject to unexpected swings today because of a quarterly event known as quadruple witching, when futures and options contracts on indexes and individual stocks expire.
