Coinbase Bitcoin Premium Index Hits Longest Negative Streak Ever

The Coinbase Bitcoin Premium Index has posted a negative value for 78 consecutive days, the longest uninterrupted negative period ever measured. That is according to data from CoinGlass. The most recent reading stands at -0.1145%, while the Bitcoin price is hovering around $64.100.

Bitcoin is available at OKX and Bybit.

In short:

• The Coinbase Bitcoin Premium Index has been negative for 78 consecutive days, a new record.
• A negative index means Bitcoin trades at a lower price on Coinbase than on other major exchanges.
• This is seen as a possible indicator of weaker demand among American investors.

What is the Coinbase Bitcoin Premium Index?

The Coinbase Bitcoin Premium Index compares the Bitcoin price on Coinbase with that on other major crypto exchanges worldwide. Because Coinbase is mainly used by American retail and institutional investors, the index serves as a gauge for demand from the United States.

A positive value indicates that Bitcoin is more expensive on Coinbase than elsewhere, which is generally interpreted as strong American buying pressure. A negative value points to the opposite: Bitcoin is relatively cheap on Coinbase compared with other platforms.

Longest negative streak ever measured

The fact that the index has now been negative for 78 uninterrupted days is unprecedented, according to CoinGlass. The current reading of -0.1145% shows that this is a structural pattern and not merely a temporary dip. This could mean that American investors are buying less actively than buyers on other markets, or that there is relatively more selling pressure via Coinbase.

It is noteworthy that this record streak coincides with a period in which American Bitcoin reported a loss of $572 million for the second quarter of 2026 and Strategy sold Bitcoin to finance dividends. Whether these developments are directly related to the negative premium has not been established, but together they paint a picture of caution on the American side of the market.