The dollar has been trading mixed, losing ground to the euro, sterling, among other currencies, while gaining on the yen and Australian dollar . USD-JPY clocked a four-day low of 108.49 in the early Tokyo session before rebounding above 109.0, dropping amid a phase of yen buying after the Dow clocked a 4%-plus closing loss on Wall Street, before rebounding. The marked widening in the U.S. 10-year Treasury over JGB yield spread this week has gotten mention in market narratives as being behind the rebound in USD-JPY, although the pair remains nearly 1% down on the week. The U.S.