Bitcoin jumped 27% between Aug. 17 and Aug. 21, touching $79,500 after the U.S. Treasury doubled its long-end bond buyback program the same week national debt crossed $40 trillion. Institutional buying through spot ETFs and a $3 billion short squeeze drove the move, while a bull flag pattern now points to a possible test of $84,000-$86,000.
Bitcoin gained 27% in five days, climbing from $62,679 to $79,500 between Aug. 17 and Aug. 21, as traders treated a Treasury bond-buyback expansion as a signal that Washington will inflate away its debt rather than cut spending.
Treasury doubles buybacks as debt tops $40 trillion
On Aug. 19, the Treasury Department doubled the maximum size of its long-end liquidity support buybacks from $2 billion to $4 billion per operation, covering 10-to-30-year securities, and raised the number of quarterly operations from two to four. According to CNBC: "there is every indication that the buybacks could exceed" that ceiling, Treasury Secretary Scott Bessent said. The announcement came one day after U.S. national debt crossed $40 trillion for the first time, just five months after passing $39 trillion.
ETF inflows and a short squeeze confirm the buying
BlackRock's IBIT alone pulled in $606 million on Aug. 20, an 82% share of that day's spot bitcoin ETF inflows, while the four-day stretch through Thursday brought roughly $1.9 billion into the funds. The rally was also amplified by forced buying: more than $3 billion in short positions were liquidated across derivatives exchanges, affecting over 170,000 traders in the largest short squeeze since November 2021. Bitcoin held above $77,000 into Monday, rising 1.3% to $77,091.1 by 01:47 ET as traders described the move as part of a broader debasement trade into scarce assets.
Bull flag consolidation eyes $84,000-$86,000
Bitcoin's pause after the 26% rally to $79,460 is shaping up as a bull flag rather than a reversal, according to a regression-channel analysis from investingLive. A confirmed breakout above the upper channel band, followed by a successful retest, would open the door toward $84,000-$86,000, though the pattern still needs confirmation.
What could still reverse the rally
Bitcoin remains 37% below its Oct. 6, 2025 all-time high of $126,198. Polymarket traders give the CLARITY Act only a 16% chance of becoming law in 2026, down from an 82% peak in February, and analysts have warned a failed Sept. 15 cloture vote could trigger a 15% to 30% correction. Ray Dalio warned a U.S. debt crisis could arrive within roughly three years, give or take two, and recommended holding gold alongside a small allocation to bitcoin as a hedge.
Sources: crypto.news, Investing.com, investingLive
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