August 5 was the worst day in the history of the Nikkei 225 index as it cratered 12%.
Just over one week later, that decline is now fully erased. The index is up 2.5% today as Japan returns from a long weekend. That puts it back at the closing level on August 4.
The bad news is that it's still 18% from the high on July 11.
USD/JPY is up 10 pips today but is 9.8% from the early-July highs.