The Coinbase Bitcoin Premium Index has turned positive, reaching 0.0023% after eight consecutive days of negative premiums, according to Coinglass data on January 15. This index reflects the price difference between Bitcoin on Coinbase and the global market average, serving as a key indicator of U.S. market dynamics. A positive premium suggests strong buying demand in the U.S., with institutional investors actively participating and ample dollar liquidity. This shift indicates a more optimistic investment sentiment compared to the previous period of negative premiums, which typically signal selling pressure and risk aversion.