"September is a red month for cryptocurrencies," refers to the fact that historically, in most years, the prices of Bitcoin and other cryptos tend to drop during September. 📉
📊 Main reasons:
1. Historical seasonality
Since 2013, September has been one of the worst months for Bitcoin, with more negative than positive closes.
Many traders call it "Red September."
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2. Profit-taking post-summer
In the U.S. and Europe, after vacations, large funds and institutions readjust their portfolios, which generates sales.
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3. Macroeconomic factors
It coincides with key reports such as the U.S. CPI, the FED's decisions on interest rates, and bond auctions. These events often cause volatility and downward pressure.
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4. Market psychology
Many investors anticipate drops in September, which reinforces the effect because they sell early.
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🔍 Quick facts (historical averages BTC 2013-2023)
September: on average -5% to -7%.
October: tends to be positive, with average increases of +10% or more ("Uptober").