USD/JPY has been trading in a messy range all through August with little clear direction.
The pair is likely in a “sideways” trend therefore, which will probably continue until a breakout in one direction or another confirms a directional trend.
A break above 146.91 would provide a sign that bulls are getting the upper hand and probably lead to a move up to 147.85, then perhaps the August highs at around 149.39.
To the downside, a break below 143.45 (August 26 low) would confirm more downside, probably to around the 141.70s where the August lows are.
The Moving Average Convergence Divergence (MACD) is above its signal line and rising, supporting a very mildly bullish outlook, although it has not quite broken above zero yet, so it remains unconfirmed.