Strategy and Marathon, two major players in the Bitcoin industry, employ distinct business models to amass significant Bitcoin holdings. Strategy, the largest corporate Bitcoin holder, acquires Bitcoin through debt and equity financing, leveraging fair value accounting to report unrealized gains. In contrast, Marathon, the largest Bitcoin miner, focuses on energy-intensive mining operations and diversifies into AI and energy infrastructure to mitigate Bitcoin's volatility. Both companies have accumulated over 69,000 BTC, showcasing their substantial influence in the market. However, they face inherent risks from market fluctuations and capital constraints, despite reporting strong profits. Strategy's financial approach contrasts with Marathon's operational focus, highlighting the varied strategies within the Bitcoin ecosystem.