Bitcoin's volatility has fallen to its lowest levels in months, raising concerns about the likelihood of a year-end rally. The Volmex BTC 30-day Implied Volatility Index (BVIV) has decreased from 65% in mid-November to 49%, reflecting diminished expectations for significant price movements. Analysts note that this suppressed volatility could impede a substantial price increase in December, with the Federal Open Market Committee (FOMC) meeting on December 11th being the only foreseeable event that might trigger a short-term volatility spike.