MUB - the National Muni Bond - a good investment

As we see in the chart, since early November MUB – the iShares National Muni Bond ETF – has been trading between its 10-day exponential moving average and the upper Bollinger Band in a healthy rally. Only at two points, we show in the blue boxes, did price move to a trendless mode and touched its 20-day exponential moving average, before resuming its uptrend.
Needless to say that MACD is in bullish territory throughout that period and above its signal line whenever price moves in the bullish channel we described above.
The last thing to notice is that, since early May, the MUB’s Relative Strength is moving up and above its 20-day exponential moving average.