Bitcoin's return rate for Q4 2025 was -23.07%, significantly below the historical average of 77.07% and median of 47.73%, marking the second worst Q4 performance on record, only surpassed by Q4 2018's -42.16%. Ethereum also saw a poor Q4 2025 return of -28.28%, ranking as the fourth worst in its history for the quarter, according to Coinglass data.