As Bitcoin's halving approaches, its volatility has surged, surpassing that of Ether in recent weeks. Bitcoin's annualised 30-day historical volatility reached nearly 60%, outpacing Ether's by almost 10 percentage points, the widest spread seen in at least a year. This trend contrasts with Bitcoin's reputation for stability compared to other cryptocurrencies. The increased volatility is attributed to various factors, including heightened activity in spot Bitcoin exchange-traded funds (ETFs) following regulatory approvals by the U.S. Securities and Exchange Commission (SEC). Additionally, anticipation surrounding Bitcoin's upcoming halving event, scheduled for April 21, which will reduce miner rewards by 50%, has contributed to the heightened volatility. These factors have led to a shift in market dynamics, with traders closely monitoring Bitcoin's movements amidst this increased volatility.