Bitcoin posted its best September on record, appreciating 7.33% as the month neared its close, approaching the strongest monthly showing in the dataset. This outcome stands in sharp contrast to the long-run average September return of −2.34%, which has historically been negative. The result continues a four-year run of positive Septembers — 3.91% in 2023, 7.29% in 2024 and 5.16% in 2025 — representing the longest consecutive streak of September gains.
On Sept. 15, the Senate’s Clarity Act failed a cloture vote by a 49–50 margin, and spot Bitcoin ETFs recorded outflows totaling $450.4 million on that trading day. Later in September, the Federal Reserve raised its benchmark interest rate by 25 basis points to a target range of 3.75–4%, representing the Fed’s first rate increase since 2023. In the immediate aftermath of the Fed announcement, Bitcoin’s market price moved downward, dipping to approximately $75,000. These recorded events—the failed cloture vote with ETF outflows and the Fed rate hike with the subsequent price dip—are listed among September’s notable market developments. Both events occurred during September’s trading calendar and are documented in the month’s market activity.
In late September, spot Bitcoin ETFs saw significant inflows of approximately $2.98 billion over seven sessions. Notably, nearly $1 billion was recorded on September 21. During the same period, short positions were liquidated, exceeding $800 million within a 24-hour timeframe. Bitcoin reached a peak price of $87,354, marking the highest level since late January. However, this upward momentum was followed by a retracement of about 4%. Subsequently, Bitcoin’s price slipped to $83,000, influenced by Brent crude oil prices surpassing $100 amid geopolitical tensions involving Donald Trump and Iran. Additionally, the price movements fit within a Fibonacci retracement zone of 74,978 to 87,354.
Bitcoin’s technical indicators showed an ADX reading of 42.3, an RSI of 61.2, and the 50-day moving average positioned above the 200-day moving average, a configuration described as a golden cross. Kyle Rodda said, “The rise in crude prices is capping non-yielding assets, so Bitcoin’s rally has taken a bit of a pause.” The ADX and RSI values, the moving-average crossover and Rodda’s quoted comment were reported in September market coverage alongside ETF flows, liquidation events and price movements. No additional interpretation is provided here beyond these published indicator values and the quoted remark. All figures and the quotation appear in September market coverage.
Bitcoin posted a notably strong September, recording its best September on record and appreciating 7.33% as the month neared its close. The month featured large spot ETF inflows of about $2.98 billion over seven sessions, a Federal Reserve rate hike and geopolitical-driven commodity price moves that influenced Bitcoin’s subsequent price retracement.
