The world of traditional finance is increasingly intertwined with that of Bitcoin, and BlackRock's recent moves only confirm this dynamic. Indeed, the asset management giant, with its $11.6 trillion under management, has just increased its stake in MicroStrategy, now rebranded as Strategy, to 5%. This rise does not go unnoticed: it comes as Strategy continues to accumulate Bitcoin massively, in order to strengthen its role as a pioneer among publicly traded companies. More than just an investment, this strategic alignment raises questions about the future of Bitcoin in institutional portfolios and the place that giants like BlackRock wish to occupy in this rapidly expanding ecosystem.