$BTC

Bitcoin Price Prediction for September 2026: What Follows a $3.5 Billion ETF Month?

BTC-USD

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Crypto short liquidations hit $1.23 billion in one hour as Bitcoin squeezes higher. Photo by BeInCrypto

Bitcoin price rose 24.95% in August, and still trades 9.62% below where it started the year. The month was bought almost entirely by funds.

Everyone else was selling into it.

Why Did the Price Rise 25% in August?

US spot Bitcoin ETFs took in $3.52 billion during August, per
data. Only five of 21 sessions saw money leave.

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Will the Price Crash in September 2026?

Twelve months since these funds launched have drawn $3 billion or more. Bitcoin fell in the month straight after seven of them. The average return in those following months is 0.13%, against 2.93% for an average month.

Seasonality points the same way. Bitcoin has closed August green only two times since 2020 (before this year), and on both the occasions, September fell 7.30% and 7.96%.