According to BlockBeats, on December 25, the BitVol Index launched by T3 Index and LedgerX rose to 65.36, a single-day increase of 3.3%.
The BitVol Index measures the 30-day expected implied volatility derived from Bitcoin options prices. Implied volatility is inverted using the B-S option pricing formula.
Implied volatility represents market participants' views on the future market and is considered to be the closest to the actual volatility at that time.