[Coinbase Bitcoin Premium Index Records 55 Consecutive Days of Negative Premium, Setting Longest Record] Odaily Planet Daily News: The Coinbase Bitcoin Premium Index has been in the negative premium range for 55 consecutive days, from May 19 to the present, with the latest value at -0.0072%. Previously, this index was in a negative premium for 40 consecutive days from January 16 to February 24 this year, setting the longest consecutive negative premium record since the index was introduced, surpassing the approximately 30 consecutive days of negative premium during the '1011 Crash' period.