Coinbase Bitcoin Premium Index Stays Negative for 37 Days, Hits 0.0523% on Feb. 21
The Coinbase Bitcoin Premium Index remained negative for 37 consecutive days on Feb. 21, reaching 0.0523%, Coinglass data show. The streak surpasses the roughly 30-day negative premium period during the "Oct. 11 crash." The index measures the price difference between Bitcoin on Coinbase and the global market average.