BlockBeats News, June 27th, according to Coinglass data, Coinbase's Bitcoin Premium Index has remained in a negative premium for 40 consecutive days, currently at -0.1569%, with the purchasing power in the U.S. market remaining weak.

The Coinbase Bitcoin Premium Index is used to measure the difference between the Bitcoin price on Coinbase and the global market average price. A negative premium usually indicates strong selling pressure in the U.S. market, a decrease in investor risk appetite, a rise in market risk aversion sentiment, or capital outflows.