Bitcoin breaks above upper Bollinger Band as indicator creator turns bullish, signaling strong upward momentum.

Bitcoin recently closed above its upper Bollinger Band for the second time since January, indicating strong upward momentum after a period of low volatility. John Bollinger, creator of the Bollinger Bands indicator, revealed that his investment fund's proprietary model has turned positive on Bitcoin and taken a position, reinforcing the bullish signal. Bitcoin is currently trading around $80,484, up about 9% over the past 30 days but still 36% below its October 2025 peak. Traders are watching to see if Bitcoin can sustain this breakout to confirm a continued upward trend.