Bitcoin Gains 43% in Q3 as ETF Demand Strengthens and $147,000 Enters Focus
Bitcoin gained 43.88% in the third quarter of 2026, putting the cryptocurrency on track for its second-strongest Q3 since 2013 as institutional demand returned and leverage across derivatives markets declined.
The rally marked a sharp reversal after Bitcoin fell 22.2% in the first quarter and another 14.09% in the second. The cryptocurrency entered July near $58,600 following three consecutive quarterly declines before accelerating through August and September.
According to Bitfinex and CoinGlass, the third-quarter advance would rank among Bitcoin's strongest quarterly performances since U.S. spot Bitcoin exchange-traded funds began trading in January 2024.
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| Source: CoinGlass |
Bitcoin also significantly outpaced major traditional assets during the quarter. Through Sept. 29, the Nasdaq Composite gained about 5%, the S&P 500 rose roughly 4% and gold advanced less than 2%, based on StatMuse data. Ethereum was a notable exception among major cryptocurrencies, outperforming Bitcoin as the broader digital-asset recovery expanded.
Bitcoin's gains accelerated after Aug. 19 despite rising Treasury yields. A U.S. Treasury initiative had increased the maximum size of liquidity-support buybacks for longer-maturity government debt to $4 billion per operation, with larger purchases beginning Sept. 9. Bitcoin has since risen almost 30%, while the 10-year Treasury yield climbed about 81 basis points and long-term borrowing costs reached multi-decade highs.
Bitcoin ETF Demand Replaces Some Leverage
U.S. spot Bitcoin ETFs became an increasingly important source of demand during the quarter.
The funds shifted from roughly $5 billion in year-to-date net outflows at the end of July to approximately $1 billion in net inflows by late September, representing a swing of about $6 billion in two months.
ETF demand reached a recent peak last week, when the products recorded $2.39 billion in weekly inflows, their largest weekly intake since October 2025. All sessions during that period posted positive flows, although daily demand slowed from $999 million on Sept. 21 to about $135 million by Sept. 25.
Analysts at Nexo said Bitcoin entered the fourth quarter with stronger spot demand and improving market structure. They also noted that the outlook remains dependent on continued ETF purchases, the absorption of overhead supply and inflation remaining sufficiently contained to avoid additional Federal Reserve tightening.
Meanwhile, leverage has been declining. Bitfinex data shows aggregate Bitcoin futures open interest falling from more than 700,000 BTC on Sept. 21 to about 644,000 BTC, its lowest level since early January.
The roughly 49,000-BTC decline over seven days was the largest contraction since October 2025. CME open interest also fell by 16,075 BTC on Monday, marking its third-largest daily decline on record.
Futures premiums have compressed, while implied volatility remains near a one-year low. The reduction in leverage could limit the fuel available for another liquidation-driven selloff, although it also removes some speculative demand that can amplify rapid advances.
Bitfinex said the amount of Bitcoin with a cost basis between $82,500 and $84,000 nearly tripled to 306,000 BTC over three days as buyers absorbed coins sold by profitable holders below the market and newer investors exiting positions at losses above it.
Bitcoin Faces Heavy Supply Above $85,000
Despite the stronger market structure, a significant concentration of Bitcoin supply remains above current prices.
Bitfinex estimates that about 1.39 million BTC were acquired between $84,000 and $86,500. The group includes longer-term holders approaching breakeven and more recent buyers whose positions moved underwater following Bitcoin's retreat from its Sept. 21 high near $87,400.
CryptoQuant reported that Bitcoin reclaimed its 365-day moving average last week for the first time since March 2023. Previous recoveries above the measure have coincided with transitions into stronger market phases, while sustained moves below it have historically been associated with weaker conditions.
Bitcoin's realized price, an estimate of the average cost basis of coins in circulation, has risen to about $77,000 and remained above that level during the latest recovery.
The key question is whether new demand can absorb the supply concentrated above the market. Bitfinex estimates that ETF purchases relative to approximately 450 BTC produced by miners each day fell from 25.6 times issuance during the $999 million inflow session to 1.8 times by Sept. 29.
The firm estimates that the ratio would need to return toward five times daily issuance, equivalent to about $190 million in ETF demand per day, to accelerate the absorption of overhead supply.
A sustained move above $85,000 would bring approximately 760,000 BTC back into profit and could push Bitcoin's supply-in-profit measure toward the 75% level that Bitfinex associates with stronger bull-market conditions. The indicator stood at 71.3% on Sept. 29, down from 78.1% eight days earlier.
Glassnode identifies another major supply concentration around $88,000 to $90,000, followed by an important level near $96,700.
Options positioning nevertheless indicates continued interest in higher prices. Nexo said Bitcoin's put-to-call ratio averaged 0.67 over the previous two weeks, while $140,000 calls expiring Dec. 25 represented the largest individual position. Dealer positioning points to $95,000-$97,000 as another significant area if Bitcoin moves through the nearer supply zones.
Q4 Seasonality Meets Elevated Treasury Yields
Historical seasonality is adding another factor to the market's fourth-quarter outlook.
Since 2013, the fourth quarter has delivered Bitcoin's strongest average returns, with estimates ranging from roughly 77% to 85% depending on the dataset. BloFin Research calculates that a 77.07% gain from current levels would place Bitcoin near $147,000, while matching its 47.73% median fourth-quarter return would imply a price of roughly $123,000.
Those figures are mechanical historical projections rather than forecasts, and Bitcoin's successive market cycles have generally produced smaller gains from their lows.
Interest-rate expectations remain a key variable. Markets initially assigned roughly a 65% probability to another quarter-point Federal Reserve rate increase in October. Softer-than-expected inflation data released Wednesday reduced those odds to about 38%, illustrating how quickly expectations can change ahead of the Fed's Oct. 27-28 meeting. Another policy decision is scheduled for Dec. 8-9.
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| Source: Checkonchain |
Bitcoin's sensitivity to broader market positioning was also visible on Sept. 28, when the Nasdaq-100, gold and Bitcoin all declined as investors reduced exposure across asset classes. Nexo analysts said the pattern was more consistent with broad deleveraging than a conventional shift into safe-haven assets.
Bitfinex identifies $81,300 as an important downside threshold. Sustained trading below that level combined with renewed ETF outflows could expose the realized-price area around $77,000.
On the upside, stronger ETF demand and a break above $86,500 would put Bitcoin near its yearly opening level of about $87,700 before the larger supply concentration around $90,000 becomes the next major area of interest.
The Oct. 2 U.S. payrolls report is the next major economic data point cited in the analysis, ahead of the next inflation release and the Federal Reserve's October meeting. Bitcoin enters that period after its 43% quarterly gain while Treasury yields remain above 5%.
Writer: Marcus RenfieldCrypto Market Analyst & Onchain WriterMarcus Renfield covers cryptocurrency markets with a focus on onchain data, Bitcoin price action, and emerging market narratives. His writing examines how capital flows, network activity, and broader market structure influence short- and medium-term trends.He aims to provide clear, data-informed analysis for readers seeking a deeper understanding of crypto market dynamics.