The Coinbase Bitcoin Premium Index has recorded 55 consecutive days of negative premium, marking the longest streak since its inception. According to Coinglass data, the index has been negative since May 19, with the latest reading at -0.0072%. This surpasses the previous record of 40 consecutive negative days earlier this year and the 30-day streak during the "1011 crash." Historical trends suggest that extended negative premiums often align with the withdrawal of U.S. institutional funds, indicating potential short-term correction pressures.