MicroStrategy, now operating as Strategy, has built an aggressive Bitcoin treasury by efficiently financing the accumulation of Bitcoin at scale.The innovation lies in Strategy's meticulously designed capital stack, consisting of convertible notes, preferred stock, and common equity.The capital stack converts fiat capital into Bitcoin exposure without compromising control or diluting shareholder value.Convertible notes are senior debt with optional equity conversion, appealing to institutional debt investors for protection with Bitcoin upside.Strife preferred stock offers investment-grade yield without Bitcoin exposure, targeting conservative capital allocators.Strike preferred stock provides yield with Bitcoin optionality through conversion into $MSTR at a defined strike price.Stride preferred stock offers high yield, high risk without conversion rights or voting rights, attracting yield-hungry investors.Common equity provides pure Bitcoin exposure, unlimited upside, and voting rights, appealing to conviction-driven investors.This capital stack is a challenge to the global bond market, offering Bitcoin-adjacent yield vehicles backed by a Bitcoin accumulation engine.Strategy's financial operating system is a model for any public company looking to monetize Bitcoin's rise while maintaining capital discipline.