BOJ's aggressive actions also forced ECB and other central banks to press the easing button.
However, the situation now is Yen is not in mood to weaken, markets are not responding positively to aggressive actions and oil has already doubled from its bottom in February. Moreover, oil helped indices recover from Feb lows even though funding currencies like JPY, EUR were on the rise.
Hence, oil better stay resilient other wise, odds of a corrective move in Dow would rise. From technical perspective a break below rising (black) could bring in chart driven bears as well.