Japanese Yen Hits 159 Per Dollar in Biggest Drop Since March

The yen fell 0.84% to 159.14 per dollar on August 10, 2026 — its steepest drop in five months, per Reuters. The dollar index rose 0.20% to 99.80. The 159 level has historically drawn Japanese government action to support the yen. Traders cut bets against the yen by a record $8.865 billion in the week to August 4, leaving less pressure to push it back up.