Bitcoin has just broken through the $80,000 mark for the first time in over three months, pushing its weekly gain to +16%. Behind this sharp move, two distinct mechanisms are combining to amplify the rally.
On one side, U.S. spot Bitcoin ETFs are recording their best inflows since May. On the other, a wave of short position liquidations is mechanically fueling buying pressure. All of this is unfolding against a backdrop of a weakening dollar and renewed appetite for scarce assets.
Here is what the data reveals about the real structure of this rally.
Bitcoin ETFs: Institutional Flows Make a Powerful Comeback
On August 19, 2026, U.S. spot Bitcoin ETFs recorded $517 million in net inflows in a single day — their strongest performance since May. Over the first two weeks of August, these products collectively attracted nearly $1 billion, signaling a clear return of institutional appetite for regulated BTC exposure.
This renewed interest is playing out within a favorable macro environment. The U.S. Treasury doubled its long-term bond buyback program from $2 billion to $4 billion. While this does not constitute a direct expansion of the money supply, it exerts downward pressure on long-term yields and is being read by markets as an easing signal. The ICE U.S. Dollar Index fell 0.8% in the wake of the announcement, reigniting the debasement trade — the strategy of positioning in scarce assets against a structurally weakening dollar.
Bitcoin, with its hard cap of 21 million units, fits naturally into this narrative. Gold also reacted, breaking above its 200-day moving average around $4,518 per ounce over the same period. Both assets are playing a similar role as stores of value against monetary erosion.
Massive Short Squeeze: $1.5 Billion Liquidated in Minutes
The other driver of this rally is mechanical and brutal: the short squeeze. As Bitcoin’s price climbed, approximately $1.5 billion in short positions were liquidated, including $700 million within a single minute. This type of event creates a self-reinforcing loop: short traders forced to buy back their positions generate the very buying pressure that pushes prices even higher.
BTC hit a peak of $81,200 before stabilizing around $80,300. The combination of ETF inflows and short liquidations explains both the magnitude and the speed of the move — a breakout that would have been far more gradual without this dual catalyst.
Bond Yields Remain the Key Risk to Watch
Despite the euphoria, bond markets are sending contradictory signals. While the Treasury announcement initially triggered a pullback in yields, the reaction quickly reversed. The U.S. 10-year yield climbed back to 4.737% and the 30-year to 5.276%, according to Dow Jones data cited by MarketWatch — nearly erasing the initial move entirely.
Ian Lyngen, Head of U.S. Rates Strategy at BMO, notes that concerns around de-dollarization, U.S. fiscal credibility, and the term premium remain deep structural factors. These tensions in long-term yields represent the primary risk to the continuation of the Bitcoin rally: if yields keep rising, pressure on risk assets could return, even in the presence of solid ETF inflows.
Markets are now watching September 9, the date on which the Treasury announced the effective launch of its expanded buyback operations on long-dated bonds. This deadline could prove to be a fresh catalyst — or a disappointment — for financial markets as a whole.
