PANews reported on December 28 that, according to the latest data from Coinglass, the Coinbase Bitcoin Premium Index has been in negative territory for two consecutive weeks (14 days), currently at -0.0784%. This index measures the difference between the price of Bitcoin on Coinbase (a major US trading platform) and the average price in the global market. A negative premium usually reflects significant selling pressure in the US market, a decline in investor risk appetite, increased market risk aversion, or capital outflow.