What Caused Japan’s Mini-Volatility Shock?

All's well that ends well in Japan after a six-day slide. Or maybe not. The Nikkei rebounded on Thursday, rising 1.5% and snapping a rout that encompassed a rather disconcerting episode of volatility that unfolded during last Thursday's session. If you recall, things suddenly went to pieces a week ago when, after rising in the morning, the bottom abruptly fell out for the Nikkei. Thanks to the morning gains and a bit of afternoon dip buying, the benchmark only closed lower by 0.2%, but it was