Bitcoin's return in Q4 2025 was -23.07%, marking its second-worst performance ever, while Ethereum's was -28.28%.

[Bitcoin's Q4 2025 Return: -23.07%, Second Worst Performance in History; Ethereum: -28.28%] According to the latest data from Coinglass, Bitcoin's return in Q4 2025 was -23.07%, far below the historical average of 77.07% and the median of 47.73%, marking the second worst quarterly return in history, second only to the -42.16% return in Q4 2018. Ethereum's Q4 return was -28.28%, marking the fourth worst quarterly return in history. Furthermore, Bitcoin's monthly return in December 2025 was -2.97%, and Ethereum's was -0.65%.