Traders were hunkering down into the weekend, with threats flying between the U.S. and Iran, and nerves rippling through markets from listed private equity funds.
PMI surveys, U.S. PCE and GDP data and a smattering of corporate earnings headline the calendar, but politics and the risk of war seemed to loom largest in investors' minds as the dollar headed for its largest weekly rise in four months.
U.S. President Donald Trump has set a deadline of 10 to 15 days for Iran to cut a deal over its pursuit of nuclear weapons, or face "really bad things".
It is classic Trump theatre, so asset prices have not yet moved a great deal. But the U.S. has sent aircraft carriers, warships and jets to the region and traders are poised to send oil and the dollar higher in the event of conflict.
Iran said it would respond if attacked.
Brent crude futures <LCOc1> have topped $72 a barrel - a 6-1/2 month high - and the dollar was firm in the Asia session.