Odaily News Investors are watching December 27, when $11.8 billion worth of Bitcoin options expire, which could trigger a big price move in either direction. Nick Forster, founder of decentralized options protocol Derive, noted that Bitcoin's volatility has remained stable over the past seven days, with the implied price volatility for the next seven days at 63% and the 30-day level at 55%. "This tight consistency suggests that the market expects big moves soon." Bitcoin has now fallen from its highs, and one of the reasons cited by market participants for the drop is profit-taking. (Reuters)