Bitcoin gained approximately 43% during the third quarter, marking its second-best third-quarter performance since 2013 and its third-strongest quarterly advance since US spot Bitcoin exchange-traded funds began trading in January 2024. The gain far exceeded traditional assets, with the Nasdaq Composite rising about 5%, the S&P 500 roughly 4%, and gold less than 2% over the same period through September 29.
Bitcoin entered July near $58,600 after three consecutive quarterly declines, then accelerated through August and September as institutional demand returned and underwater sellers were absorbed at higher prices. The outperformance accelerated after August 19, despite rising Treasury yields that typically create headwinds for non-yielding assets.
Shift from Leverage to Spot Demand
US spot Bitcoin ETFs moved from roughly $5 billion in year-to-date net outflows at the end of July to about $1 billion in inflows by late September. The funds absorbed $2.39 billion in their largest weekly intake since October 2025 during the final week of the quarter.
Simultaneously, leveraged traders retreated significantly. Aggregate Bitcoin futures open interest fell from more than 700,000 BTC on September 21 to about 644,000, its lowest since early January. This contraction removes speculative buying power but also reduces the risk of liquidation-driven selloffs.
Overhead Supply and Price Obstacles
Bitcoin faces substantial seller concentration above current levels. Bitfinex estimates investors hold approximately 1.39 million BTC acquired between $84,000 and $86,500, including long-term holders returning toward breakeven and recent buyers underwater on their positions following Bitcoin's September 21 high near $87,400.
A move above $85,000 would return roughly 760,000 BTC to profit. Bitfinex estimates that ETF demand needs to recover to approximately five times daily miner issuance—roughly $190 million daily—to absorb overhead supply more efficiently.
Seasonal Patterns and Price Projections
The fourth quarter has historically produced Bitcoin's strongest returns, with average gains of roughly 77% to 85% since 2013. Applying the historical average of 77.07% from current levels would suggest a target near $147,000, while the median fourth-quarter return of 47.73% would imply roughly $123,000. Analysts note these are mechanical projections and successive Bitcoin cycles have delivered progressively smaller advances.
Monetary Policy and Key Levels
Interest rates remain a constraint, with 10-year Treasury yields climbing approximately 81 basis points during the quarter and reaching multi-decade highs. Markets began the week assigning roughly 65% probability to another quarter-point Fed increase in October, though softer inflation data reduced those odds to about 38%.
For Bitfinex, $81,300 represents an important support level beneath the recovery. Sustained trading below that alongside renewed ETF outflows could expose the realized-price region near $77,000. On the upside, stronger ETF demand and a break through $86,500 would leave Bitcoin approaching its yearly open near $87,700 before the larger supply cluster around $90,000 enters play.
