Spot Bitcoin ETF demonstrated renewed institutional appetite on Sept. 10 with $741.5 million in daily inflows, representing the largest single-day influx since the $799.4 million recorded on Jul. 16.
Farside Investors’ data show that the Sept. 10 surge capped a remarkable three-day period for Bitcoin ETF products, with combined inflows from Sept. 8 to 10 exceeding $1.1 billion.
This reversal pushed cumulative net flows above $55 billion since the products launched in January 2024.
The substantial inflows occurred as Bitcoin (BTC USD) traded within its established $110,000-$116,000 range, suggesting institutional buyers viewed the consolidation period as an accumulation opportunity.
According to Bitfinex Alpha’s latest market analysis, this price action reflected “constructive dip-buying, with logical support zones being actively defended.”
The timing aligned with broader seasonal patterns that have historically favored Bitcoin’s strength in the fourth quarter.
The report noted that while September traditionally represents the weakest month for Bitcoin with average returns of -3.32%, recent years showed the “red September” effect weakening.
Short-term holder profitability metrics supported the institutional buying thesis. The analysis revealed that 58% of recent buyers remained in profit following Bitcoin (BTC USD) rebound from $107,370, creating a neutral foundation for potential upward momentum.
Bitcoin ETF v. Ethereum ETFs Break Extended Outflow Pattern
Ethereum ETFs provided additional evidence of recovering institutional interest by ending a six-day outflow streak that resulted in over $1 billion in net redemptions.
The products registered approximately $200 million in combined inflows across Sept. 9-10, representing a significant shift in sentiment.
The Ethereum turnaround proved particularly noteworthy given the asset’s recent underperformance relative to Bitcoin.
Bitfinex’s report highlighted that Ethereum faced greater dependency on ETF flows compared to Bitcoin. This dynamic benefited from “several demand rails beyond simply ETFs and treasuries.”
The analysis also revealed structural differences in institutional engagement between the assets.
While Bitcoin ETF flows reflected “clearer directional conviction,” Ethereum flows showed “a balance between speculative demand and structured arbitrage-driven participation” through cash-and-carry strategies.
September Supports Strong Q4 For Bitcion ETF
The renewed ETF demand occurred against a backdrop of improving seasonal dynamics and supportive macro conditions.
Federal Reserve rate cut expectations following weak employment data created conditions historically favorable for Bitcoin’s fourth-quarter performance.
Further, recent Consumer Price Index (CPI) and Producer Price Index (PPI) data prompted traders to price three rate cuts this year instead of two.
The report emphasized that October and November historically represented Bitcoin’s strongest months, averaging 21.9% and 46% respectively.
Combined returns on the fourth quarter averaged an impressive 85% with a 52% median, indicating potential for sustained momentum if current conditions persisted.
The institutional flow patterns also supported expectations for continued diversification away from traditional assets.
ETF velocity measurements indicated that sustained daily inflows of $150-200 million typically signaled bullish institutional regimes, with the recent three-day performance exceeding these thresholds significantly.
Bitcoin (BTC USD) Market Structure Implications
The divergent performance between Bitcoin and Ethereum ETFs reinforced distinct institutional adoption patterns.
Bitcoin (BTC USD) stronger flows reflected direct spot exposure preferences, while Ethereum’s recovery suggested renewed interest in more complex trading strategies involving derivatives markets.
The report noted that the institutional re-engagement occurred despite ongoing macroeconomic uncertainties. This includes Federal Reserve policy deliberations and political tensions affecting monetary policy independence.
This suggested institutional buyers viewed current price levels as attractive entry points regardless of short-term volatility.
The Sept. 10 inflows positioned Bitcoin ETF for potential seasonal acceleration into the traditionally strong fourth quarter.
With cumulative flows now exceeding $55 billion and institutional demand patterns showing clear recovery signals, the products appeared well-positioned to capitalize on historically favorable seasonal dynamics.