Japanese shares plunge again.

A late sell-off in an already weak market caused the Nikkei (EWJ) to close -5.2%, taking the index's losses since the volatility began late last week to over 14%. Fears about the end of the Fed's QE program and the market undergoing a correction are cited as reasons for the turbulence, as well as the falling dollar-yen (FXY), although the equity-currency relationship seems to have become reciprocal.