TL;DR
- Bitcoin closed above $77,000 after clearing $71,000, with roughly $3 billion in crypto shorts liquidated while futures open interest continued rising.
- US spot Bitcoin ETFs attracted about $1.92 billion during the week, but weak onchain transfer activity leaves questions about how durable the rally is.
- Bitfinex sees $73,500 as key support, while Strategy’s next filing, ETF demand and stablecoin growth could determine whether momentum continues or fades from current levels.
Bitcoin’s breakout into the upper $70,000s has transformed August into a sharp reversal, but Bitfinex says the next stretch will test whether the move is durable. BTC cleared $71,000 on Aug. 20 and closed the week above $77,000, gaining 22%. The rally’s force came largely from an aggressive short squeeze rather than broad onchain participation. About $3 billion in crypto shorts were liquidated across Aug. 19 and 20, while Bitcoin futures open interest rose to roughly $51.36 billion, signaling that fresh derivatives positioning entered even as shorts were forced out.
ETF inflows strengthen the rally, but participation remains thin
US spot Bitcoin ETFs added roughly $1.92 billion during the week, their strongest inflow since October 2025, after Treasury announced bond buybacks. ETF assets recovered from about $77.6 billion at June’s low to more than $96.1 billion. That spot demand gives the breakout more substance, but Bitfinex still sees a participation problem beneath the surface. Bitcoin transfer volume remains near the bottom of its eight-year range, with the 30-day average around 875,000 BTC per day, suggesting the rally still needs broader network activity to confirm that new demand extends beyond forced buying and institutional fund flows.
The technical map is clear. Buyers from the past one to three months have an average realized price near $64,500, while the three-to-six-month cohort sits around $73,500. The breakout pushed both groups back into profit and turned those overhead cost bases into potential support. A weekly hold above roughly $73,500 followed by a successful retest would strengthen the recovery case. Above current prices, relatively little supply sits before the $84,000 to $85,000 region, while Bitfinex identifies around $86,500 as another area where older buyers could approach breakeven.
The risk is that liquidity-driven momentum fades before organic participation arrives. Strategy reported no Bitcoin purchases or sales in its Aug. 17 filing, ending three consecutive weeks of selling, while its average acquisition price of $75,385 is now below spot. This makes Strategy’s next filing and ETF flows critical tests for Bitcoin’s breakout. Renewed corporate selling could restore overhead pressure, while a return to buying would align Strategy with ETF demand for the first time since June. Bitfinex says stablecoin supply and ETF inflows must keep expanding, or the recent surge could prove more squeeze-driven than sustainable.
