Dollar gains vs. yen as BoJ tweaks policy to target yield curve management.
Dollar up 0.57% at 102.28 yen at 02:45 ET. The dollar index was up 0.28%.
BoJ scraps focus on monetary base; sets targets for long-term rates.
Aims to keep 10-year bond yields around current levels of around 0%.
Deposit rate on excess reserves maintained at minus -0.1%.
Japanese financial stocks jump; bond yields rise.