Key Notes
- US spot Bitcoin ETFs attracted about $6.19 billion across August and September, providing sustained demand despite intermittent withdrawals.
- October opened with $292.6 million in net inflows over its first two US trading sessions, led by BlackRock’s IBIT on Friday.
- Institutional research supports longer-term conviction, while a confirmed market bottom and a three-year bull run remain unproven.
US spot Bitcoin exchange-traded funds attracted roughly $6.19 billion in net inflows across August and September, giving the market a sustained source of demand as investors weigh whether the latest recovery can develop into a longer advance. October also began with two positive trading sessions.
The renewed buying strengthens the bullish case for Bitcoin, but the monthly figures contain repeated daily withdrawals. They show improving demand through US-listed funds rather than an uninterrupted inflow streak or confirmation that the market has passed its final low.
Two Positive Months Carry Into October
CoinScreamer’s calculations from Farside Investors’ flow history put August’s net inflows at about $3.54 billion and September’s at $2.65 billion. Both months were positive overall, although September’s total was lower than August’s.
The September result included eight net-outflow days among 21 sessions. A particularly strong week from September 21–25 brought in approximately $2.39 billion, accounting for much of the month’s net gain and illustrating how concentrated the buying was.
Farside’s latest figures show another $102.7 million entering on October 1 and $189.9 million on October 2, for a combined $292.6 million. BlackRock’s IBIT led Friday with $158.2 million. Those were the latest completed US trading sessions available when this article was prepared.
The positive October start followed $148.7 million of withdrawals on September 30. That reversal is a reminder that a favorable monthly trend can coexist with shorter periods of selling.
Why ETF Demand Matters for Bitcoin
Spot funds give investors access to Bitcoin through brokerage accounts without requiring them to manage wallets and private keys. Persistent net creations can expand the amount of Bitcoin held through these products, making ETF demand an important part of the market’s buying pressure.
The mechanism differs from ordinary share trading. BlackRock’s published fund disclosures explain that authorized participants create or redeem IBIT baskets using cash or Bitcoin, while individual shares trade on Nasdaq. A trade between two existing shareholders does not, by itself, require new Bitcoin purchases by the fund.
Flow totals also do not identify every buyer or distinguish long-term institutional allocations from retail positions and trading strategies. They are evidence of demand through a particular investment channel, rather than a complete measure of the conviction behind it.
Institutional Conviction Supports the Longer View
A September 23 Bitwise report offers a separate view of institutional behavior. The asset manager interviewed investment professionals responsible for crypto decisions at 15 large institutions over three months. None had reduced allocations through the roughly 50% drawdown between late 2025 and the second quarter of 2026, and several had bought more.
Most reported allocations of 1%–2% of investable assets. Those interviews suggest that some established holders maintained their investment thesis through a steep decline, although the limited sample cannot establish a market-wide consensus.
CoinScreamer’s coverage of Citi’s recent forecast upgrade also highlighted the bank’s expectation that advisers and brokerages would increase allocations gradually. That is a forecast about future demand, separate from the flows already recorded.
The Four-Year Cycle Remains a Debate
Analysts differ over how much weight to place on Bitcoin’s historical cycle. In a July 22 research note, Grayscale’s head of research, Zach Pandl, contrasted the four-year framework with a macroeconomic explanation driven by growth and real interest rates.
At that time, the historical-cycle framework pointed to a possible September or October bottom. Pandl instead favored the macroeconomic view, arguing conditionally that Bitcoin might already have bottomed if the Federal Reserve avoided rate hikes and economic growth held up. That was a dated assessment, rather than a new October declaration.
Neither framework establishes a fixed three-year bull market from here. Strong ETF demand can support a recovery, but its duration still depends on continued buying and the wider economic backdrop. Monday’s $87,000 retest, followed by another retreat, shows why improving demand and a durable price breakout remain separate questions.
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