You may have heard that some companies treat Bitcoin (BTC) as an asset reserve, but did you know? Some companies directly use Bitcoin as collateral to borrow money and buy more Bitcoin, which is known as “Bitcoin collateral loans.” This article will introduce you to this mechanism and illustrate how it works in practice through the latest actions of the Japanese company Metaplanet Inc. (Metaplanet).
In simple terms, the company owns Bitcoin, but if it needs funds for expansion or to buy back shares, it can use the Bitcoin it holds as collateral to borrow from lenders. In this way:
Metaplanet recently raised funds through this method. At the end of October 2025, it used a small portion of its 30,823 BTC (valued at approximately $3.3–3.5 billion) as collateral to borrow $100 million from its credit line. The company referred to this as “conservative borrowing,” with a lower collateral ratio and more cautious risk control.
Metaplanet was originally a Japanese hotel and media company. Starting in 2024, the company’s strategy has completely shifted to make Bitcoin its core asset. Its long-term goal is to hold 210,000 BTC by 2027 (approximately 1% of the total Bitcoin supply). This loan is a step in its “leveraging Bitcoin to accelerate rise” strategy. Specifically:
Using a metaphor: You own a gold mine, and instead of selling it, you use it as collateral to borrow money to expand the mine, increase production, and enhance the value of the mine. What Metaplanet does with Bitcoin is a similar operation.
For newcomers or investors in Bitcoin, there are a few points worth noting:
Metaplanet’s operation of a $100 million Bitcoin collateral loan showcases a new dimension of “Bitcoin as a corporate financial tool”. From this, we can understand that Bitcoin is not only a digital asset but may also serve as a starting point, pivot, and leverage. As a newcomer, if you want to understand the future role of Bitcoin in enterprises and capital markets, this case is worth paying attention to. Understanding this model will help you view the Bitcoin ecosystem from a higher perspective, rather than just seeing it as a simple matter of “price fluctuations”.
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