The total crypto market capitalization crossed $3 trillion on September 22, 2026, for the first time since January, as Bitcoin traded near $86,000 on a Treasury bond buyback announcement and nearly $1 billion in single-day ETF inflows. Short sellers were forced out of over $920 million in positions as leveraged bets unwound, while 1.07 million BTC sit concentrated in the $83,000–$86,000 zone that now decides whether the rally holds.
The total crypto market capitalization crossed $3 trillion on September 22, 2026, briefly touching a level last seen in January before settling just under that mark. The move added roughly 4.3% in a single day, and the market has now added over $740 billion in total value since late August, all traced back to one policy announcement from Washington: the U.S. Treasury Department's move to expand buybacks of long-dated bonds.
Bitcoin tests a dense supply wall near $86,000
Bitcoin drove most of the advance, trading near $86,000 and briefly eclipsing $87,000 during the rally's peak. On Bitstamp's tracker, BTC touched a high of $86,502 on Tuesday, up more than 10% from the previous Sunday's close.
That level matters beyond the chart. According to Glassnode, roughly 1.07 million BTC were acquired between $83,000 and $86,000, most of it held by long-term holders now approaching breakeven after months underwater. Nicolai Sondergaard, senior research analyst at Nansen, said the move's durability depends on whether spot buyers and ETF investors keep following through, rather than on derivatives momentum alone.
Altcoins follow, leverage unwinds
Altcoins picked up the momentum with varying intensity. Dogecoin climbed roughly 11% on the day, while XRP gained 5.7% to reach $1.53. Ether rose to approximately $2,745, and Solana added 3.6%, with BNB up 1.6%.
Beneath the rally, open interest in perpetual futures reached approximately $160 billion, the highest level since late October 2025, according to Coinglass. That leverage cut against short sellers on September 21, when over $920 million in positions were forcibly closed. According to Yahoo Finance, Sondergaard described the move as "like a combination of renewed ETF demand and a large short squeeze", as traders betting against bitcoin were forced to buy it back.
ETF investors return to profit
U.S. spot Bitcoin ETFs recorded nearly $1 billion in net inflows on September 21, their largest single-day haul since October 2025. The ETF complex had remained below the $83,000–$86,000 zone for 228 consecutive sessions, with aggregate unrealized losses reaching about $18 billion at their February low.
Sondergaard added that $87,000 is the next level to watch if bitcoin holds above $85,000, followed by $90,000 and a further resistance area near $92,000.
Sources: Crypto Briefing, Yahoo Finance, Bitcoin.com
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