Bitcoin Had A Huge August But September Could Change Everything

Bitcoin started September below 78000 dollars after a 25% rise in August, its best monthly performance since November 2024. Indeed, this entry into the month called “Rektember” revives an unfavorable seasonality. Bitcoin loses on average about 3% in September since 2013. In 2026, the main risk however does not come from the calendar but from the Federal Reserve. Markets now anticipate a possible rate increase starting September 16.

In brief

September remains the least favorable month for Bitcoin

While the market enters the period cautiously, the expression “Rektember” combines September with the English term “rekt” used in the crypto ecosystem to signal heavy losses. This word is based on Bitcoin’s historically weak performance during the ninth month of the year.

BTC has closed September in the red eight times since 2013. Its average monthly return is -3%, making it its worst-performing month over the period.