COINOTAG News, reporting on December 19 and citing Coinglass data, notes that the Coinbase Bitcoin Premium Index has extended a negative run for five consecutive days, with a current reading of -0.065%.

This Bitcoin Premium Index measures the divergence between Bitcoin pricing on Coinbase, a major U.S. exchange, and the global market average; it functions as a proxy for U.S. market inflows, institutional demand, and shifting market sentiment.

A positive premium typically indicates that Coinbase prices trade above the global benchmark, suggesting robust buying pressure in the U.S., potential inflows from institutional funds, ample USD liquidity, and an optimistic investment climate. By contrast, a negative premium points to softer U.S. demand, a decline in risk appetite, rising market risk aversion, or capital outflows, signaling a cooler near-term outlook.