Q4 2025 turned out to be a rough quarter for major cryptocurrencies. Bitcoin dropped 23.07%, falling significantly short of its historical Q4 average return of 77.07%—with the median sitting at 47.73%. This marks the second-worst fourth quarter on record, with only Q4 2018's devastating 42.16% decline ranking worse. Ethereum fared even tougher, sinking 28.28% during the same period. The data underscores how this year's final stretch deviated sharply from seasonal patterns typically associated with Q4 strength in the crypto markets. For context, these performance gaps highlight just how brutal the recent market conditions have been compared to longer-term trends.