While Nifty took 10 trading sessions to swing from the lower Bollinger band to the middle band, it took just 3 sessions to travel the upper half. This suggests that the uptrend is gaining momentum, encouraging us to believe that, despite the pace of upsides, there is more to come. While Nifty took 10 trading sessions to swing from the lower Bollinger band to the middle band, it took just 3 sessions to travel the upper half. This suggests that the uptrend is gaining momentum, encouraging us to believe that, despite the pace of upsides, there is more to come. Economic Times