Treasury Bond Buybacks and $1.9B ETF Inflows Fuel BTC Surge

Bitcoin's price surge to nearly $79,500 on August 21 was largely driven by a U.S. Treasury decision to increase liquidity-support buybacks for long-term bonds. The move more than doubled the maximum size of these operations from $2 billion to at least $4 billion per transaction, starting September 9.

This change in bond-market dynamics had an immediate impact on financial markets, causing long-term yields to fall and the dollar to weaken. As investors sought safer assets, they turned to Bitcoin and gold among others.

The Treasury announcement was just one factor contributing to Bitcoin's price increase, however. Institutional demand for the cryptocurrency also played a significant role. U.S. spot Bitcoin ETFs attracted $1.9 billion in inflows over the week ending August 20, with combined Bitcoin and Ethereum products seeing an additional $700 million.

Short covering was another key driver of the price rise, as more than $4 billion in bearish positions were liquidated during the rally. This forced traders who had bet against Bitcoin to buy back into a rising market, further fueling the surge.