Bitcoin added and lost nearly $100 billion in market value within hours on December 18, 2025.

On December 18, 2025, Bitcoin experienced an unprecedented volatility event, adding and subsequently losing nearly $100 billion in market value within hours. This dramatic swing was largely driven by massive liquidations in the market, highlighting the fragility of current market conditions.

Marcus is a smart contract security auditor who has reviewed over 200 protocols. He has contributed to Slither and other open-source security tools, and now focuses on educating developers about common vulnerabilities and secure coding practices. His security alerts have helped prevent millions in potential exploits.