Bitcoin fell below $90,000, after briefly rebounding.

Bitcoin fell back, failing to maintain its recent rebound above $90,000. Kathleen Brooks of XTB stated in a report that although there was no clear driver for Bitcoin's decline, the sharp drop in volatility last week may have made some investors who are worried about the uncertainty of the year-end outlook uneasy. She said that the VIX volatility index fell below the average level of the past 12 months last week. "Currently, Bitcoin is often a leading indicator of overall risk appetite, and its decline is not a good sign for the stock market at the beginning of this month." Data from the London Stock Exchange Group shows that Bitcoin fell 5.1% to $86,544, hitting a one-week low of $85,663 during trading.