Twenty One Capital has launched on the New York Stock Exchange under the ticker XXI, boasting a Bitcoin treasury of 43,514 BTC, valued at approximately $3.9 billion. This move positions the company as the third-largest public corporate holder of Bitcoin, trailing only MicroStrategy and MARA Holdings. The firm, supported by Cantor Fitzgerald, Tether, Bitfinex, and SoftBank, aims to develop Bitcoin-based financial products and enhance the cryptocurrency's presence in global markets, according to co-founder Jack Mallers.