Bitcoin prices continue to fall deep into red territory as investors increasingly take the path of capitulation. Interestingly, a recent on-chain analysis was conducted that delves into the underlying factors that typically control Bitcoin’s December price movement.
Coinbase Premium Suddenly Falls into Negative Territory: Why This Matters
In a QuickTake post on the CryptoQuant platform, crypto education institute XWIN Research Japan reported that the Coinbase Premium Index index has been in free fall recently. For context, this indicator measures the price difference between Bitcoin on the Coinbase (USD) market and Bitcoin on other major global exchanges (such as Binance) or the USDT market. In doing so, it reflects the buying and selling bias of US investors and helps provide insight into their behavior.
According to the Cryptocurrency Research Institute, the decline began in late November and early December. This decline correlates with the sharp decline in Bitcoin prices, so the apparent change in sentiment among US investors appears to be responsible for the bearish pressure seen earlier in the month.

Interestingly, there is a historical event that parallels the aforementioned scenario. December typically has lower premium measurements when compared to performance throughout the year. XWIN Research highlights that measurements are often near or below zero, “mainly due to year-end rebalancing and tax loss recovery by U.S. institutions and individuals.”
However, there are slight deviations from this repeating pattern. In 2018 and 2022, premiums fell significantly into negative territory as the market was under significant stress. On the other hand, 2020 and 2023 yielded positive readings from the premium, which were positively correlated with the strength of the bull market underway at the time.
“December 2025 looks special” — Research Group
However, XWIN Research Japan said it is worth noting that this year’s scenario has its own “unique developments”. Of note, Coinbase Premium has refused to remain in this state despite starting December in the negative. Instead, the analytical platform reported an almost immediate recovery not only to neutral levels but also to positive territory.
This sharp reversal occurred within just a few days, making it clear that the Bitcoin market may have seen the last strength of its existing bearish pressure. Interestingly, historical data shows that movements such as those seen in the market are often preceded by price stabilization or even short-term recovery. Therefore, if history is any indication, Bitcoin prices could be near local rock bottoms and then recover.
Ultimately, XWIN Research points out that the stabilization or sustained decline in Bitcoin prices will primarily depend on “future US capital flows, derivatives positioning, and premium trends.” At the time of writing, Bitcoin’s valuation is $89,321, but there has been no significant movement since the previous day.
Featured image from Flickr, chart from Tradingview
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