A wave of dollar selling in Asia is an ominous sign for the greenback as the world's export powerhouse starts to question a decades-long trend of investing its big trade surpluses in U.S. assets.

Sharp moves in Asian currencies against the dollar will add to investor skittishness, and any new selloff in U.S. treasuries would likely derail the global stocks rally.

The Singdollar was up 0.6 per cent to 1.292 per US dollar as at 12.07pm local time. Read more at straitstimes.com. Read more at straitstimes.com.