Bitcoin tends to rise into the end of the year.
In 9 years of Bitcoin data, December closed higher 3 times (33%), with a median of -3.0% against +2.6% for the other months. It ranks #7 of 12 by median. But a month that rises 55% of the time would rise at least 3 times in 9 years by luck alone 95% of the time, so 9 data points can't settle it.
| Year | December return |
|---|---|
| 2025 | -3.0% |
| 2024 | -2.9% |
| 2023 | +12.1% |
| 2022 | -3.6% |
| 2021 | -18.8% |
| 2020 | +46.9% |
| 2019 | -4.6% |
| 2018 | -8.4% |
| 2017 | +39.4% |
How this was checked. Bitcoin's month-end close against the previous month-end close (Binance BTC/USDT, from 2017). 'By luck alone' is the exact binomial chance of that many up years if the month were ordinary.
Recomputed nightly from Binance daily closes. History describes the past; it is not a forecast or advice.