Ueda mentioned difficult challenges coming soon. And the market got scared starting to think they will hike rates this month. We will see. Carry trade unwind can be wild. 

quark

It's probable. But it won't last imo as the world knows that a la long there is only one save haven (besides our little revolution) and that is the USD and the US capital market.

TomK

econ

Forex: The Yen's Crazy Strength

Since it's a funding currency for risk assets, don't you think it's about the recent stock market weakness?