Strategy (MSTR.US), the world's largest corporate Bitcoin holder, did not add to its Bitcoin position last week despite the cryptocurrency's continued significant upward movement. According to company disclosures, Strategy currently holds approximately 640,031 Bitcoin, with a cumulative investment of about $47.35 billion, translating to an average cost of approximately $73,983 per Bitcoin. The company's last purchase occurred between September 22 and September 28, when it acquired 196 Bitcoin for $22.1 million.

On Monday, the company's stock price rose more than 2% to close at $359.69, while the S&P 500 index gained 0.4% during the same period.

Bitcoin's rally over the past week has been exceptionally strong. The world's largest cryptocurrency broke through the $125,000 barrier over the weekend and reached a new high of $126,273 on Monday. According to CoinDesk data, Bitcoin has gained 9.9% over the past seven days and 14.2% over the past 30 days. As of Monday afternoon Eastern Time, Bitcoin was up another 2.5% in 24 hours, trading at $125,667, bringing the total value of Strategy's Bitcoin holdings to over $80 billion.

Market analysts believe this round of Bitcoin's rise is closely related to political uncertainty triggered by the U.S. government shutdown. Historically, during three of the past five U.S. government shutdowns, Bitcoin prices rose, reflecting investors' tendency to turn to digital assets as a hedge when concerned about fiat currency devaluation.

Strategy is widely viewed as a "Bitcoin leverage investment tool," allowing investors to indirectly participate in Bitcoin's performance without directly holding the cryptocurrency. However, the market has also seen the emergence of inverse ETF products targeting the stock. REX Shares launched the T-Rex 2X Inverse MSTR Daily Target ETF (MSTZ.US) in September 2024, designed to achieve twice the opposite daily performance of Strategy's stock, primarily operating through derivatives rather than actual shares, suitable for short-term bearish investors.

However, short sellers have suffered heavy losses recently. Strategy's stock price has risen approximately 9.5% over the past five trading days, with a cumulative gain of 24% year-to-date. Conversely, the MSTZ ETF has fallen more than 17% over the same period and has plummeted over 85% year-to-date.