A company most people outside of French financial circles have never heard of is quietly becoming one of the most actively traded stocks on Europe’s largest exchange. Capital B, the Paris-listed Bitcoin treasury firm formerly known as The Blockchain Group, now ranks ninth in daily trading volume relative to market cap across all of Euronext.
For a company that only pivoted to a Bitcoin-centric treasury strategy around late 2024, that’s a remarkably fast climb up the liquidity ladder.
Europe’s answer to MicroStrategy
Capital B trades under the ticker ALCPB on Euronext Growth Paris, the exchange’s market for small and mid-cap companies. Its core thesis will sound familiar to anyone who’s followed Michael Saylor’s playbook: raise capital, buy Bitcoin, hold Bitcoin, repeat.
The company’s stash now sits at 3,521 BTC after its most recent purchase of 376 BTC on September 7, 2026, a transaction that cost approximately €25.3 million. Its total acquisition cost basis for the entire Bitcoin position stands at roughly €309.4 million, funded through a series of capital raises totaling between €280 million and €300 million.
