Bitcoin Eyes Best September Ever as Red Curse Falters

Bitcoin’s “Red September” Curse May Finally Be Broken

Bitcoin is on the cusp of achieving its best September performance in history, potentially laying to rest the long-standing “Red September” phenomenon that has plagued the cryptocurrency. As of late September, Bitcoin has seen a 7.33% increase for the month, a figure that would set a new record according to Coinglass data, provided no unexpected market shifts occur in the remaining days.

A Narrow Margin for a Historic Record

The current gain is remarkably close to the previous record. In September 2024, Bitcoin returned 7.29%, meaning the potential new record is hanging by a thread with just one day left in the month. Historically, September has been a challenging month for Bitcoin. From 2013 to 2025, the cryptocurrency closed the month in negative territory in eight out of thirteen years, including a six-year streak of losses from 2017 to 2022. Even with this year’s positive performance, Bitcoin’s average September return remains a negative 2.34%, making it the worst-performing month on average, according to CoinGlass data.

A Turning Tide for September Performance

However, recent years have shown a shift in this trend. Bitcoin finished September with gains of 3.91% in 2023, 7.29% in 2024, and 5.16% in 2025. If the current trajectory holds, this year would mark the fourth consecutive month of positive returns, the longest such streak in the available data.

Beyond Crypto: The “Red September” Phenomenon

The “Red September” pattern is not exclusive to the cryptocurrency market. The S&P 500 has also historically averaged a loss in September since 1945, with various factors such as seasonal vacations and tax-loss harvesting strategies cited as potential explanations for this behavior.

Mid-Month Volatility and a Swift Rebound

Bitcoin began the month trading around $78,500, following a significant 25% surge in August. The mid-month period brought considerable volatility. On September 15th, the Senate’s Clarity Act failed to pass a cloture vote by a narrow margin of 49 to 50. This legislative setback coincided with spot Bitcoin ETFs experiencing their worst day since June, shedding $450.4 million in outflows.

The following day, the Federal Reserve announced a 25 basis point interest rate hike, bringing the target range to 3.75%-4%. This marked the first rate increase since 2023. Such moves in interest rates typically impact risk assets like cryptocurrencies and stocks, as the cost of borrowing for speculative investments fluctuates. Following the rate hike, Bitcoin saw a dip, falling to approximately $75,000.

A Dramatic Reversal and Bullish Indicators

The market appeared poised for another red September, with Bitcoin experiencing a pullback. However, the sentiment quickly reversed. Bitcoin ETFs subsequently saw inflows totaling around $2.98 billion over seven consecutive trading sessions, including a notable $1 billion inflow on September 21st, their strongest day since October 2025. This surge was accompanied by a significant short squeeze, with over $800 million in leveraged positions liquidated within 24 hours. Bitcoin then rallied to $87,354, its highest point since late January.

More recently, Bitcoin has retraced about 4% from its peak. On Monday, it slipped to $83,000 as Brent crude oil prices climbed back above $100 per barrel, following President Donald Trump’s rejection of Iran’s terms for reopening the Strait of Hormuz.

Technical Analysis Suggests Continued Strength

Despite the recent pullback, technical indicators suggest a bullish outlook. On the daily chart, the correction has been relatively shallow. Fibonacci retracement levels indicate natural support and resistance zones between $74,978 and $87,354.

Trend indicators remain positive. The Average Directional Index (ADX), which measures trend strength, stands at 42.3, comfortably above the 25 threshold that typically signals a strong trend. The Relative Strength Index (RSI), a momentum gauge, is at 61.2, indicating healthy buying pressure without signaling overbought conditions (above 70). Furthermore, the 50-day moving average is trading above the 200-day moving average, a classic bullish signal known as a “golden cross.”

Immediate support levels are identified at $82,626, with further support found in the $81,166 to $79,705 zone, corresponding to the 50% and 61.8% Fibonacci retracement levels.

Looking Ahead: Challenges and Opportunities

While a green September would be a significant psychological victory, it does not entirely erase the year’s earlier challenges for investors. Bitcoin is still approximately 4.4% below its year-to-date opening price of around $87,497.

Investors will also be mindful of past performance. Last year’s positive September was followed by a 3.69% drop in October and a substantial 23% decline in the fourth quarter. The Federal Reserve’s upcoming meetings on October 27-28 and December 8-9 will be closely watched for potential impacts on market sentiment.

To secure the record-breaking September, Bitcoin needs to close the month above approximately $83,600. While October historically boasts an average return of 19.92%, investors are advised to approach such figures with caution.