Bitcoin surges 8-10% as US Treasury doubles long-term bond buyback program

On August 19, 2026, the U.S. Treasury announces it will double its long-end bond buybacks to at least $4 billion per operation. This surprise liquidity injection compresses long-term yields, sending the 30-year yield down to 5.19% and triggering a massive risk-on rally. Bitcoin surges over 10% to surpass $72,000, fueled by a historic $1.44 billion short liquidation cascade and record spot ETF inflows of $517 million. Treasury Secretary Scott Bessent signals that these buybacks will become routine.

Treasury long-end buyback expansion

• ▪According to New York Fed research, on-the-run Treasury securities account for less than 4% of the outstanding $30 trillion debt but generate 65% of average daily trading volume, leaving off-the-run securities highly illiquid.
• ▪The expanded U.S. Treasury buyback program is scheduled to run from September 9 through November 4, 2026, and will increase the number of long-end operations from two to four per quarter.
• ▪On August 19, 2026, the U.S. Treasury Department announced it will double the maximum size of its long-end liquidity support buyback operations for 10-to-20-year and 20-to-30-year nominal coupon securities from $2 billion to at least $4 billion per operation.
• ▪On August 20, 2026, U.S. Treasury Secretary Scott Bessent stated that the Treasury will conduct buyback operations routinely and that the purchase sizes could exceed $4 billion per operation.

Bond yield compression

• ▪The benchmark 10-year Treasury yield declined to 4.65% following the August 19, 2026 announcement, down from around 4.75% earlier in the week.
• ▪Following the U.S. Treasury announcement on August 19, 2026, the 30-year Treasury yield fell from a 19-year high of 5.34% to 5.19%, representing a drop of roughly 15 basis points from its peak.
• ▪By Thursday morning on August 20, 2026, Treasury yields began reversing, with the 10-year yield climbing back to 4.69% and the 30-year yield rising to 5.25%.

Bitcoin price rally

• ▪Following the U.S. Treasury announcement, Bitcoin rallied over 8% to 10% in under 12 hours, surging from an intraday low of $64,100 to a peak of over $70,000.
• ▪The U.S. Dollar Index fell 3% since the end of July 2026 to 98.6, slipping below its 200-day moving average of 99.1 following the Treasury announcement, which historically supports Bitcoin price appreciation.
• ▪On August 20, 2026, Bitcoin extended its gains to reach an intraday high of $72,860, marking its highest price level since early June 2026.

Short liquidation cascade

• ▪The Bitcoin price surge triggered a massive short squeeze, liquidating $1.44 billion in crypto short positions across major exchanges within 24 hours, with over $1.2 billion closing within a single hour.
• ▪The ratio of short to long liquidations on August 19, 2026, reached approximately 8.6 to 1, with short liquidations totaling $1.44 billion against $168 million in long liquidations.
• ▪Prior to the August 19, 2026 announcement, derivatives traders held a pronounced bearish bias, with short positions accounting for over 51% of open interest on Binance, OKX, and Bybit.

Institutional ETF inflows

• ▪Prior to the rally, U.S. spot Bitcoin ETFs recorded a combined $487 million in net inflows across August 17 and August 18, 2026, with BlackRock's IBIT capturing $143.6 million on August 18.
• ▪On August 19, 2026, U.S. spot Bitcoin ETFs recorded $517 million in net inflows, their largest single-day inflow since early May 2026, while spot Ether ETFs drew $189 million.