Nikkei 225 buy trade the Nikkei 225 index seems to have a bullish bias in the short term, as it has recently broken above a resistance level at around 30,000 points and is approaching its 200-day moving average at around 31,000 points. The index has also formed a bullish inverted head-and-shoulders pattern on the four-hour time frame, which suggests a potential upside target of around 31,600 points. The index is supported by a positive momentum indicator (MACD) and a rising trend line that connects the higher lows since August.