Tokyo-based Quantum Solutions Co. Ltd., a company listed on the Tokyo Stock Exchange, has significantly bolstered its digital asset portfolio through a major Ethereum acquisition. On October 21, 2025, its Hong Kong subsidiary, GPT Pals Studio Limited, purchased an additional 2,000.13 ETH, bringing the total holdings to 3,865.84 ETH valued at approximately $15.85 million. The average purchase price was around $4,101 per ETH, funded through a mix of external borrowing and proceeds from financial instruments, including Series 13 and 14 Share Purchase Rights and Series 4 Unsecured Convertible Bonds.
This move is part of Quantum Solutions' broader strategy to diversify its assets and strengthen its balance sheet, with a focus on long-term corporate value. The company emphasized that "the group will continue to strategically accumulate digital assets, primarily Ethereum, to expand its digital asset portfolio and increase its medium to long-term corporate value." According to founder Francis Zhou, the firm accumulated 2,365 ETH worth $9 million in just seven days, making it the largest Ether digital asset treasury (DAT) outside the United States and Japan's leading publicly listed ETH DAT, ranking 11th globally based on CoinGecko data.
Quantum Solutions' efforts are backed by ARK Invest, which participated in a $180 million funding round in late September aimed at building a 100,000 ETH treasury. ARK Invest founder and CEO Cathie Wood stated, "Three months into the DAT revolution, we're happy to support Japan's first institutional-grade ETH DAT." The company also holds a smaller Bitcoin treasury of 11.6 BTC worth $1.3 million, but the primary focus remains on Ethereum, reflecting growing institutional confidence in its role in DeFi, smart contracts, and tokenized assets. Despite the DAT hype cooling in some regions, Quantum Solutions continues its aggressive accumulation, underscoring a trend of traditional firms directly investing in crypto assets.
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